Dell PowerSwitch S6000 ON User Manual

Dell Command Line Reference Guide for the S6000–ON System

9.14.2.6

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

© 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

2020 - 03

Rev. A00

Contents

1 About this Guide.........................................................................................................................	40
Objectives.............................................................................................................................................................................	40
Audience...............................................................................................................................................................................	40
Conventions.........................................................................................................................................................................	40
Information Icons.................................................................................................................................................................	40
2 CLI Basics..................................................................................................................................	42
Accessing the Command Line............................................................................................................................................	42
Multiple Configuration Users..............................................................................................................................................	42
Obtaining Help.....................................................................................................................................................................	43
Navigating the CLI...............................................................................................................................................................	44
Using the no Command......................................................................................................................................................	44
Filtering show Commands..................................................................................................................................................	45
Enabling Software Features on Devices Using a Command Option.............................................................................	45
feature vrf.......................................................................................................................................................................	46
show feature..................................................................................................................................................................	46
Command Modes................................................................................................................................................................	47
3 File Management........................................................................................................................	55
boot system.........................................................................................................................................................................	55
cd...........................................................................................................................................................................................	56
HTTP Copy via CLI..............................................................................................................................................................	57
copy.......................................................................................................................................................................................	58
delete....................................................................................................................................................................................	60
dir............................................................................................................................................................................................	61
format...................................................................................................................................................................................	62
fsck flash..............................................................................................................................................................................	63
mkdir......................................................................................................................................................................................	64
mount nfs.............................................................................................................................................................................	64
rmdir......................................................................................................................................................................................	65
upgrade system...................................................................................................................................................................	65
rename..................................................................................................................................................................................	68
show boot system...............................................................................................................................................................	68
show bootvar.......................................................................................................................................................................	69
show file-systems................................................................................................................................................................	70
show os-version....................................................................................................................................................................	71
show running-config............................................................................................................................................................	72
show startup-config............................................................................................................................................................	76
show version........................................................................................................................................................................	76
upgrade boot........................................................................................................................................................................	78
verify....................................................................................................................................................................................	79
4 Control and Monitoring...............................................................................................................	80
banner exec..........................................................................................................................................................................	80

Contents 3

banner login...........................................................................................................................................................................	81
banner motd.........................................................................................................................................................................	82
cam-acl.................................................................................................................................................................................	83
clear average-power...........................................................................................................................................................	85
clear line................................................................................................................................................................................	85
configure...............................................................................................................................................................................	86
disable....................................................................................................................................................................................	87
do...........................................................................................................................................................................................	88
enable....................................................................................................................................................................................	89
enable optic-info-update interval......................................................................................................................................	89
end.........................................................................................................................................................................................	90
exec-timeout.........................................................................................................................................................................	91
exit.........................................................................................................................................................................................	92
ftp-server enable.................................................................................................................................................................	93
ftp-server topdir..................................................................................................................................................................	94
ftp-server username...........................................................................................................................................................	95
hostname..............................................................................................................................................................................	96
ip ftp password....................................................................................................................................................................	97
ip ftp source-interface........................................................................................................................................................	98
ip tftp vrf..............................................................................................................................................................................	99
ip ftp username....................................................................................................................................................................	99
ip ftp vrf..............................................................................................................................................................................	100
ip telnet server enable........................................................................................................................................................	101
ip telnet server vrf..............................................................................................................................................................	101
ip telnet source-interface..................................................................................................................................................	102
ip tftp vrf.............................................................................................................................................................................	103
line........................................................................................................................................................................................	104
logging disable-syslog snmp auth-failure........................................................................................................................	105
login concurrent-session...................................................................................................................................................	105
login statistics.....................................................................................................................................................................	107
motd-banner.......................................................................................................................................................................	108
ping......................................................................................................................................................................................	109
reload.....................................................................................................................................................................................	111
reload-type...........................................................................................................................................................................	113
boot-type.......................................................................................................................................................................	113
secure-erase..................................................................................................................................................................	114
send......................................................................................................................................................................................	114
service timestamps.............................................................................................................................................................	115
show alarms.........................................................................................................................................................................	116
show cpu-traffic-stats.......................................................................................................................................................	117
show debugging..................................................................................................................................................................	119
show environment..............................................................................................................................................................	119
show inventory....................................................................................................................................................................	121
show login statistics...........................................................................................................................................................	122
show memory.....................................................................................................................................................................	124
show processes cpu..........................................................................................................................................................	125
show processes ipc flow-control.....................................................................................................................................	128
show processes memory..................................................................................................................................................	129
show reset-reason..............................................................................................................................................................	131
show software ifm.............................................................................................................................................................	133

4 Contents

show system.......................................................................................................................................................................	134
show tech-support............................................................................................................................................................	136
ssh-peer-stack-unit...........................................................................................................................................................	139
telnet....................................................................................................................................................................................	140
telnet-peer-stack-unit........................................................................................................................................................	141
terminal length....................................................................................................................................................................	142
traceroute...........................................................................................................................................................................	143
undebug all..........................................................................................................................................................................	145
virtual-ip..............................................................................................................................................................................	145
write.....................................................................................................................................................................................	146
5 802.1X......................................................................................................................................	148
debug dot1x........................................................................................................................................................................	149
dot1x auth-fail-vlan............................................................................................................................................................	149
dot1x auth-server...............................................................................................................................................................	150
dot1x auth-type mab-only..................................................................................................................................................	151
dot1x authentication (Configuration)..............................................................................................................................	152
dot1x authentication (Interface)......................................................................................................................................	153
dot1x critical-vlan...............................................................................................................................................................	153
dot1x guest-vlan.................................................................................................................................................................	154
dot1x host-mode................................................................................................................................................................	155
mac......................................................................................................................................................................................	156
dot1x mac-auth-bypass.....................................................................................................................................................	157
dot1x max-eap-req.............................................................................................................................................................	158
dot1x max-supplicants.......................................................................................................................................................	158
dot1x port-control..............................................................................................................................................................	159
dot1x profile........................................................................................................................................................................	160
dot1x quiet-period..............................................................................................................................................................	160
dot1x reauthentication........................................................................................................................................................	161
dot1x reauth-max...............................................................................................................................................................	162
dot1x server-timeout.........................................................................................................................................................	163
dot1x static-mab.................................................................................................................................................................	164
dot1x supplicant-timeout...................................................................................................................................................	165
dot1x tx-period...................................................................................................................................................................	165
show dot1x cos-mapping interface..................................................................................................................................	166
show dot1x interface..........................................................................................................................................................	167
show dot1x profile..............................................................................................................................................................	170
6 Access Control Lists (ACL).........................................................................................................	171
Commands Common to all ACL Types............................................................................................................................	172
remark............................................................................................................................................................................	172
show config...................................................................................................................................................................	173
Common IP ACL Commands............................................................................................................................................	174
access-class..................................................................................................................................................................	174
aclrange profile-name..................................................................................................................................................	176
clear counters ip access-group..................................................................................................................................	176
feature aclrange............................................................................................................................................................	177
ip access-group............................................................................................................................................................	178
ip mirror-access-group................................................................................................................................................	179

Contents 5

ip control-plane egress-filter.......................................................................................................................................	180
show aclrange...............................................................................................................................................................	180
show ip accounting access-list...................................................................................................................................	181
Standard IP ACL Commands............................................................................................................................................	182
deny...............................................................................................................................................................................	182
ip access-list standard.................................................................................................................................................	184
permit.............................................................................................................................................................................	185
resequence access-list................................................................................................................................................	187
seq..................................................................................................................................................................................	187
Extended IP ACL Commands...........................................................................................................................................	189
deny...............................................................................................................................................................................	189
deny icmp.......................................................................................................................................................................	191
deny tcp.........................................................................................................................................................................	194
deny udp........................................................................................................................................................................	197
ip access-list extended................................................................................................................................................	199
permit............................................................................................................................................................................	200
permit icmp..................................................................................................................................................................	202
permit tcp.....................................................................................................................................................................	204
permit udp....................................................................................................................................................................	207
resequence access-list...............................................................................................................................................	209
seq..................................................................................................................................................................................	210
Common MAC Access List Commands..........................................................................................................................	214
clear counters mac access-group..............................................................................................................................	214
mac access-group........................................................................................................................................................	215
show mac access-lists.................................................................................................................................................	216
show mac accounting access-list...............................................................................................................................	217
Standard MAC ACL Commands......................................................................................................................................	218
deny...............................................................................................................................................................................	218
mac access-list standard.............................................................................................................................................	219
permit............................................................................................................................................................................	220
seq..................................................................................................................................................................................	221
Extended MAC ACL Commands.....................................................................................................................................	223
deny...............................................................................................................................................................................	223
mac access-list extended...........................................................................................................................................	225
permit............................................................................................................................................................................	226
IP Prefix List Commands..................................................................................................................................................	228
clear ip prefix-list.........................................................................................................................................................	228
deny...............................................................................................................................................................................	228
ip prefix-list...................................................................................................................................................................	229
seq.................................................................................................................................................................................	230
show config...................................................................................................................................................................	231
show ip prefix-list detail..............................................................................................................................................	232
show ip prefix-list summary.......................................................................................................................................	233
Route Map Commands.....................................................................................................................................................	234
continue........................................................................................................................................................................	234
description....................................................................................................................................................................	235
match as-path..............................................................................................................................................................	236
match community........................................................................................................................................................	236
match interface............................................................................................................................................................	237
match ip address.........................................................................................................................................................	238

6 Contents

match ip next-hop.......................................................................................................................................................	239
match ip route-source................................................................................................................................................	240
match metric.................................................................................................................................................................	241
match origin..................................................................................................................................................................	242
match route-type........................................................................................................................................................	243
match tag.....................................................................................................................................................................	244
route-map.....................................................................................................................................................................	244
set as-path...................................................................................................................................................................	245
set automatic-tag........................................................................................................................................................	246
set comm-list delete....................................................................................................................................................	247
set community.............................................................................................................................................................	248
set level.........................................................................................................................................................................	249
set local-preference....................................................................................................................................................	250
set metric......................................................................................................................................................................	251
set metric-type............................................................................................................................................................	252
set next-hop.................................................................................................................................................................	253
set origin.......................................................................................................................................................................	254
set tag...........................................................................................................................................................................	255
set weight.....................................................................................................................................................................	255
show config..................................................................................................................................................................	256
show route-map..........................................................................................................................................................	257
deny (for Standard IP ACLs)...........................................................................................................................................	258
deny (for Extended IP ACLs)..........................................................................................................................................	259
seq (for Standard IPv4 ACLs)..........................................................................................................................................	261
deny tcp (for Extended IP ACLs)....................................................................................................................................	262
deny ether-type (for Extended MAC ACLs).................................................................................................................	263
deny (for Standard MAC ACLs)......................................................................................................................................	264
deny (for Extended MAC ACLs).....................................................................................................................................	266
permit (for Standard IP ACLs)........................................................................................................................................	267
permit arp (for Extended MAC ACLs)...........................................................................................................................	268
permit ether-type (for Extended MAC ACLs)..............................................................................................................	269
permit icmp (for Extended IP ACLs)..............................................................................................................................	270
permit udp (for Extended IP ACLs)................................................................................................................................	272
permit (for Extended IP ACLs)........................................................................................................................................	273
permit (for Standard MAC ACLs)...................................................................................................................................	275
seq (for Standard MAC ACLs)........................................................................................................................................	276
permit tcp (for Extended IP ACLs).................................................................................................................................	277
seq arp (for Extended MAC ACLs).................................................................................................................................	279
seq ether-type (for Extended MAC ACLs)...................................................................................................................	280
seq (for IP ACLs)...............................................................................................................................................................	281
seq (for IPv6 ACLs)..........................................................................................................................................................	282
permit udp (for IPv6 ACLs).............................................................................................................................................	285
permit tcp (for IPv6 ACLs)..............................................................................................................................................	287
permit icmp (for IPv6 ACLs)...........................................................................................................................................	289
permit (for IPv6 ACLs)......................................................................................................................................................	291
deny udp (for IPv6 ACLs)................................................................................................................................................	292
deny arp (for Extended MAC ACLs)..............................................................................................................................	294
deny tcp (for IPv6 ACLs).................................................................................................................................................	295
deny icmp (for Extended IPv6 ACLs).............................................................................................................................	297
deny (for IPv6 ACLs)........................................................................................................................................................	300

Contents 7

7 Bidirectional Forwarding Detection (BFD)...................................................................................	302
bfd all-neighbors................................................................................................................................................................	302
bfd disable..........................................................................................................................................................................	304
bfd enable (Configuration)...............................................................................................................................................	304
bfd enable (Interface)......................................................................................................................................................	305
bfd interval ........................................................................................................................................................................	305
bfd protocol-liveness........................................................................................................................................................	306
ip route bfd.........................................................................................................................................................................	307
ip ospf bfd all-neighbors...................................................................................................................................................	308
ipv6 ospf bfd all-neighbors..............................................................................................................................................	309
ipv6 route bfd.....................................................................................................................................................................	310
isis bfd all-neighbors...........................................................................................................................................................	311
neighbor bfd........................................................................................................................................................................	312
neighbor bfd disable...........................................................................................................................................................	313
show bfd neighbors...........................................................................................................................................................	313
vrrp bfd neighbor................................................................................................................................................................	317
8 Boot Command Line Interface....................................................................................................	318
boot change........................................................................................................................................................................	318
boot message.....................................................................................................................................................................	319
boot show net config retries............................................................................................................................................	320
boot write net config retries............................................................................................................................................	320
boot zero............................................................................................................................................................................	320
default-gateway.................................................................................................................................................................	321
etheraddr <macaddr>.......................................................................................................................................................	322
ignore enable-password...................................................................................................................................................	322
ignore startup-config........................................................................................................................................................	323
interface management ethernet ip address...................................................................................................................	323
NVRAM erase....................................................................................................................................................................	323
reload..................................................................................................................................................................................	324
serial console......................................................................................................................................................................	324
show bootvar.....................................................................................................................................................................	325
show default-gateway......................................................................................................................................................	325
show interface management ethernet...........................................................................................................................	326
show serial console baud rate..........................................................................................................................................	326
watchdog <string>............................................................................................................................................................	327
9 Border Gateway Protocol..........................................................................................................	328
BGP IPv4 Commands.......................................................................................................................................................	328
address-family..............................................................................................................................................................	328
aggregate-address......................................................................................................................................................	329
bgp add-path...............................................................................................................................................................	330
bgp always-compare-med..........................................................................................................................................	331
bgp asnotation.............................................................................................................................................................	332
bgp bestpath as-path ignore......................................................................................................................................	333
bgp bestpath as-path multipath-relax......................................................................................................................	333
bgp bestpath med confed..........................................................................................................................................	334
bgp bestpath med missing-as-best...........................................................................................................................	335

8 Contents

bgp bestpath router-id ignore....................................................................................................................................	335
bgp client-to-client reflection....................................................................................................................................	336
bgp cluster-id...............................................................................................................................................................	337
bgp confederation identifier.......................................................................................................................................	338
bgp confederation peers............................................................................................................................................	339
bgp dampening............................................................................................................................................................	339
bgp default local-preference.......................................................................................................................................	341
bgp dmzlink-bw............................................................................................................................................................	341
bgp enforce-first-as....................................................................................................................................................	342
bgp fast-external-fallover...........................................................................................................................................	343
bgp four-octet-as-support.........................................................................................................................................	343
bgp graceful-restart....................................................................................................................................................	344
bgp non-deterministic-med........................................................................................................................................	345
bgp outbound-optimization........................................................................................................................................	346
bgp recursive-bgp-next-hop......................................................................................................................................	346
bgp regex-eval-optz-disable......................................................................................................................................	347
bgp router-id................................................................................................................................................................	348
clear ip bgp...................................................................................................................................................................	349
clear ip bgp dampening...............................................................................................................................................	350
clear ip bgp flap-statistics...........................................................................................................................................	351
clear ip bgp peer-group..............................................................................................................................................	353
debug ip bgp................................................................................................................................................................	354
debug ip bgp dampening............................................................................................................................................	355
debug ip bgp events....................................................................................................................................................	356
debug ip bgp keepalives..............................................................................................................................................	357
debug ip bgp notifications..........................................................................................................................................	358
debug ip bgp soft-reconfiguration............................................................................................................................	359
debug ip bgp updates.................................................................................................................................................	360
default-metric...............................................................................................................................................................	361
deny bandwidth...........................................................................................................................................................	362
description....................................................................................................................................................................	362
maximum-paths...........................................................................................................................................................	363
neighbor activate.........................................................................................................................................................	364
neighbor add-path.......................................................................................................................................................	365
neighbor advertisement-interval...............................................................................................................................	366
neighbor advertisement-start....................................................................................................................................	367
neighbor allowas-in......................................................................................................................................................	367
neighbor default-originate..........................................................................................................................................	368
neighbor description....................................................................................................................................................	369
neighbor distribute-list................................................................................................................................................	370
neighbor ebgp-multihop..............................................................................................................................................	371
neighbor fall-over.........................................................................................................................................................	372
neighbor local-as..........................................................................................................................................................	373
neighbor maximum-prefix...........................................................................................................................................	374
neighbor next-hop-self...............................................................................................................................................	375
neighbor password......................................................................................................................................................	375
neighbor peer-group (assigning peers)....................................................................................................................	376
neighbor peer-group (creating group)......................................................................................................................	378
neighbor peer-group passive......................................................................................................................................	378
neighbor remote-as.....................................................................................................................................................	379

Contents 9

neighbor remove-private-as......................................................................................................................................	380
neighbor route-map.....................................................................................................................................................	381
neighbor route-reflector-client..................................................................................................................................	382
neighbor send-community..........................................................................................................................................	383
neighbor shutdown......................................................................................................................................................	384
neighbor soft-reconfiguration inbound.....................................................................................................................	385
neighbor timers............................................................................................................................................................	386
neighbor timers extended...........................................................................................................................................	387
neighbor update-source..............................................................................................................................................	387
neighbor weight...........................................................................................................................................................	388
network.........................................................................................................................................................................	389
network backdoor.......................................................................................................................................................	390
permit bandwidth.........................................................................................................................................................	391
redistribute...................................................................................................................................................................	392
redistribute ospf..........................................................................................................................................................	393
router bgp.....................................................................................................................................................................	394
shutdown all.................................................................................................................................................................	395
shutdown address-family-ipv4–multicast................................................................................................................	395
shutdown address-family-ipv4–unicast...................................................................................................................	396
shutdown address-family-ipv6–unicast...................................................................................................................	396
set extcommunity bandwidth....................................................................................................................................	396
show capture bgp-pdu neighbor...............................................................................................................................	397
show config..................................................................................................................................................................	398
show ip bgp..................................................................................................................................................................	399
show ip bgp cluster-list...............................................................................................................................................	403
show ip bgp community..............................................................................................................................................	404
show ip bgp community-list.......................................................................................................................................	406
show ip bgp dampened-paths...................................................................................................................................	408
show ip bgp detail........................................................................................................................................................	409
show ip bgp extcommunity-list..................................................................................................................................	410
show ip bgp filter-list...................................................................................................................................................	412
show ip bgp flap-statistics..........................................................................................................................................	413
show ip bgp inconsistent-as.......................................................................................................................................	415
show ip bgp neighbors.................................................................................................................................................	416
show ip bgp next-hop.................................................................................................................................................	420
show ip bgp paths........................................................................................................................................................	421
show ip bgp paths community...................................................................................................................................	422
show ip bgp peer-group.............................................................................................................................................	423
show ip bgp regexp.....................................................................................................................................................	425
show ip bgp summary.................................................................................................................................................	426
show running-config bgp............................................................................................................................................	428
timers bgp.....................................................................................................................................................................	429
timers bgp extended...................................................................................................................................................	430
MBGP Commands............................................................................................................................................................	430
debug ip bgp dampening.............................................................................................................................................	431
distance bgp.................................................................................................................................................................	432
neighbor auto-local-address.......................................................................................................................................	432
show ip bgp dampened-paths...................................................................................................................................	433
10 Content Addressable Memory (CAM)........................................................................................	435

10 Contents

CAM Profile Commands...................................................................................................................................................	435
cam-acl (Configuration).............................................................................................................................................	435
cam-acl-egress............................................................................................................................................................	438
cam-optimization.........................................................................................................................................................	438
cam-threshold..............................................................................................................................................................	439
show cam-acl...............................................................................................................................................................	440
show cam-usage..........................................................................................................................................................	441
test cam-usage............................................................................................................................................................	443
Unified Forwarding Table Modes....................................................................................................................................	444
hardware forwarding-table mode..............................................................................................................................	444
show hardware forwarding-table mode...................................................................................................................	445
11 Control Plane Policing (CoPP)..................................................................................................	446
control-plane-cpuqos........................................................................................................................................................	446
cpu-protocol-group...........................................................................................................................................................	447
copp-profile........................................................................................................................................................................	447
cpu-queue...........................................................................................................................................................................	447
copp-policy.........................................................................................................................................................................	448
protocol-list........................................................................................................................................................................	449
queue-length......................................................................................................................................................................	449
service-policy rate-limit-cpu-queues..............................................................................................................................	450
service-policy rate-limit-protocols..................................................................................................................................	450
show cpu-queue rate cp...................................................................................................................................................	451
show ip protocol-queue-mapping...................................................................................................................................	452
show ipv6 protocol-queue-mapping...............................................................................................................................	453
show mac protocol-queue-mapping...............................................................................................................................	454
show running-config copp-profile...................................................................................................................................	455
show running-config cpu-protocol-group......................................................................................................................	455
12 Data Center Bridging (DCB).....................................................................................................	456
DCB Command..................................................................................................................................................................	456
dcb-enable....................................................................................................................................................................	456
PFC Commands.................................................................................................................................................................	457
clear hardware pfc-nodrop-priority...........................................................................................................................	457
clear pfc counters.......................................................................................................................................................	458
pfc-asymmetric...........................................................................................................................................................	458
pfc-nodrop-priority l2-dlf drop..................................................................................................................................	459
pfc no-drop queues.....................................................................................................................................................	459
pfc priority....................................................................................................................................................................	460
show dcb.......................................................................................................................................................................	461
show hardware pfc-nodrop-priority..........................................................................................................................	461
show interface pfc......................................................................................................................................................	462
show interface pfc statistics......................................................................................................................................	464
ETS Commands.................................................................................................................................................................	465
dcb-enable....................................................................................................................................................................	466
clear ets counters........................................................................................................................................................	466
show interface ets.......................................................................................................................................................	467
DCBX Commands..............................................................................................................................................................	471
advertise dcbx-tlv.........................................................................................................................................................	471

Contents 11

dcbx port-role..............................................................................................................................................................	472
dcbx version.................................................................................................................................................................	473
debug dcbx...................................................................................................................................................................	474
fcoe priority-bits..........................................................................................................................................................	474
iscsi priority-bits...........................................................................................................................................................	475
show interface dcbx detail.........................................................................................................................................	475
dcb-map..............................................................................................................................................................................	478
priority-pgid........................................................................................................................................................................	479
priority-group bandwidth pfc...........................................................................................................................................	479
dcb-map stack-unit all stack-ports all............................................................................................................................	480
dcb pfc-shared-buffer-size..............................................................................................................................................	481
dcb-buffer-threshold .......................................................................................................................................................	482
priority.................................................................................................................................................................................	482
qos-policy-buffer...............................................................................................................................................................	483
dcb-policy buffer-threshold (Interface Configuration)................................................................................................	485
dcb-policy buffer-threshold (Global Configuration).....................................................................................................	485
show qos dcb-buffer-threshold......................................................................................................................................	486
dcb pfc-total-buffer-size..................................................................................................................................................	487
show running-config dcb-buffer-threshold...................................................................................................................	488
service-class buffer shared-threshold-weight..............................................................................................................	489
dcb pfc-queues.................................................................................................................................................................	490
dcb {ets | pfc} enable........................................................................................................................................................	491
13 Debugging and Diagnostics......................................................................................................	492
Diagnostics and Monitoring Commands.........................................................................................................................	492
logging coredump stack-unit.....................................................................................................................................	492
Offline Diagnostic Commands.........................................................................................................................................	493
diag stack-unit.............................................................................................................................................................	493
offline stack-unit..........................................................................................................................................................	494
online stack-unit..........................................................................................................................................................	495
Hardware Commands.......................................................................................................................................................	496
clear hardware stack-unit...........................................................................................................................................	496
clear hardware system-flow.......................................................................................................................................	497
clear hardware vlan-counters....................................................................................................................................	497
hardware watchdog....................................................................................................................................................	498
show hardware mac....................................................................................................................................................	498
show hardware ip........................................................................................................................................................	499
show hardware stack-unit.........................................................................................................................................	500
show hardware stack-unit buffer..............................................................................................................................	507
show hardware buffer service-pool...........................................................................................................................	510
show hardware buffer-stats-snapshot.....................................................................................................................	510
show hardware counters interface ...........................................................................................................................	512
show hardware drops..................................................................................................................................................	514
show hardware system-flow......................................................................................................................................	516
show hardware vlan-counters....................................................................................................................................	517
show hardware stack-unit buffer-stats-snapshot ..................................................................................................	518
show hardware stack-unit buffer-stats-snapshot (Total Buffer Information)...................................................	520
14 Dynamic Host Configuration Protocol (DHCP)...........................................................................	522

12 Contents

Commands to Configure the System to be a DHCP Server.......................................................................................	522
clear ip dhcp.................................................................................................................................................................	522
debug ip dhcp server..................................................................................................................................................	523
debug ipv6 dhcp .........................................................................................................................................................	523
default-router...............................................................................................................................................................	524
disable...........................................................................................................................................................................	525
dns-server....................................................................................................................................................................	525
domain-name...............................................................................................................................................................	526
excluded-address.........................................................................................................................................................	527
hardware-address........................................................................................................................................................	527
host-address................................................................................................................................................................	528
ip dhcp server..............................................................................................................................................................	528
lease..............................................................................................................................................................................	529
netbios-name-server..................................................................................................................................................	530
netbios-node-type.......................................................................................................................................................	530
network.........................................................................................................................................................................	531
pool................................................................................................................................................................................	532
show ip dhcp binding..................................................................................................................................................	532
show ip dhcp configuration........................................................................................................................................	533
show ip dhcp conflict..................................................................................................................................................	534
show ip dhcp server....................................................................................................................................................	535
Commands to Configure Secure DHCP.........................................................................................................................	535
arp inspection...............................................................................................................................................................	535
arp inspection-limit......................................................................................................................................................	536
arp inspection-trust.....................................................................................................................................................	536
clear ip dhcp snooping................................................................................................................................................	537
clear ipv6 dhcp snooping binding..............................................................................................................................	538
ip dhcp relay.................................................................................................................................................................	539
ip dhcp snooping.........................................................................................................................................................	540
ipv6 dhcp snooping.....................................................................................................................................................	540
ipv6 dhcp snooping vlan..............................................................................................................................................	541
ip dhcp snooping binding.............................................................................................................................................	541
IPv6 DHCP Snooping Binding....................................................................................................................................	543
ip dhcp snooping database.........................................................................................................................................	543
ipv6 dhcp snooping database write-delay................................................................................................................	544
ip dhcp snooping database renew.............................................................................................................................	545
ipv6 dhcp snooping database renew........................................................................................................................	545
ip dhcp snooping trust................................................................................................................................................	546
ipv6 dhcp snooping trust............................................................................................................................................	546
ip dhcp source-address-validation............................................................................................................................	547
ip dhcp relay information-option...............................................................................................................................	548
ip dhcp relay source-interface...................................................................................................................................	549
ipv6 dhcp relay source-interface...............................................................................................................................	549
ip dhcp snooping verify mac-address.......................................................................................................................	550
ipv6 dhcp snooping verify mac-address...................................................................................................................	551
ip helper-address..........................................................................................................................................................	551
ipv6 helper-address.....................................................................................................................................................	552
show ip dhcp snooping...............................................................................................................................................	553
show ipv6 dhcp snooping..........................................................................................................................................	555
Commands to Configure DNS ........................................................................................................................................	556

Contents 13

ip name-server.............................................................................................................................................................	556
ip domain-name...........................................................................................................................................................	556
ip domain-list................................................................................................................................................................	557
ip host...........................................................................................................................................................................	558
clear host......................................................................................................................................................................	559
15 Equal Cost Multi-Path (ECMP)................................................................................................	560
ecmp-group.......................................................................................................................................................................	560
hash-algorithm...................................................................................................................................................................	561
ip ecmp-group...................................................................................................................................................................	563
ip ecmp weighted..............................................................................................................................................................	564
link-bundle-distribution trigger-threshold......................................................................................................................	565
link-bundle-monitor enable..............................................................................................................................................	565
16 Flex Hash and Optimized Boot-Up.............................................................................................	567
load-balance ingress-port enable....................................................................................................................................	567
load-balance flexhash.......................................................................................................................................................	567
reload-type fastboot.........................................................................................................................................................	569
lacp fast-switchover.........................................................................................................................................................	569
encapsulation dot1q..........................................................................................................................................................	570
17 FIP Snooping...........................................................................................................................	571
clear fip-snooping database interface vlan.....................................................................................................................	571
clear fip-snooping statistics..............................................................................................................................................	571
debug fip snooping............................................................................................................................................................	572
debug fip snooping rx........................................................................................................................................................	573
feature fip-snooping..........................................................................................................................................................	573
fip-snooping enable...........................................................................................................................................................	574
fip-snooping fc-map.........................................................................................................................................................	575
fip-snooping max-sessions-per-enodemac....................................................................................................................	575
fip-snooping port-mode fcf.............................................................................................................................................	576
fip-snooping port-mode fcoe-trusted............................................................................................................................	576
show fip-snooping config.................................................................................................................................................	577
show fip-snooping enode.................................................................................................................................................	577
show fip-snooping fcf.......................................................................................................................................................	578
show fip-snooping statistics............................................................................................................................................	579
show fip-snooping system................................................................................................................................................	581
show fip-snooping vlan.....................................................................................................................................................	582
show fips status................................................................................................................................................................	583
18 Force10 Resilient Ring Protocol (FRRP)....................................................................................	584
clear frrp.............................................................................................................................................................................	584
debug frrp..........................................................................................................................................................................	585
description..........................................................................................................................................................................	586
disable.................................................................................................................................................................................	587
interface.............................................................................................................................................................................	587
member-vlan......................................................................................................................................................................	589
mode...................................................................................................................................................................................	589
protocol frrp.......................................................................................................................................................................	590

14 Contents

show frrp.............................................................................................................................................................................	591
timer....................................................................................................................................................................................	593
19 GARP VLAN Registration (GVRP).............................................................................................	595
clear gvrp statistics...........................................................................................................................................................	596
debug gvrp.........................................................................................................................................................................	596
disable.................................................................................................................................................................................	597
garp timers.........................................................................................................................................................................	598
gvrp enable........................................................................................................................................................................	599
gvrp registration................................................................................................................................................................	600
protocol gvrp......................................................................................................................................................................	601
show config........................................................................................................................................................................	601
show garp timers...............................................................................................................................................................	602
show gvrp..........................................................................................................................................................................	603
show gvrp statistics..........................................................................................................................................................	604
20 ICMP Message Types..............................................................................................................	606
21 Internet Group Management Protocol (IGMP)...........................................................................	608
IGMP Commands..............................................................................................................................................................	608
clear ip igmp groups....................................................................................................................................................	608
debug ip igmp..............................................................................................................................................................	609
ip igmp access-group..................................................................................................................................................	610
ip igmp immediate-leave..............................................................................................................................................	611
ip igmp last-member-query-interval..........................................................................................................................	612
ip igmp query-interval..................................................................................................................................................	612
ip igmp query-max-resp-time.....................................................................................................................................	613
ip igmp ssm-map..........................................................................................................................................................	614
ip igmp version..............................................................................................................................................................	615
show ip igmp groups....................................................................................................................................................	616
show ip igmp interface................................................................................................................................................	618
show ip igmp ssm-map...............................................................................................................................................	620
IGMP Snooping Commands.............................................................................................................................................	621
clear ip igmp snooping groups....................................................................................................................................	621
debug ip igmp snooping..............................................................................................................................................	622
ip igmp snooping enable.............................................................................................................................................	623
ip igmp snooping fast-leave.......................................................................................................................................	624
ip igmp snooping last-member-query-interval.........................................................................................................	624
ip igmp snooping mrouter...........................................................................................................................................	625
ip igmp snooping querier.............................................................................................................................................	626
show ip igmp snooping groups...................................................................................................................................	627
show ip igmp snooping mrouter................................................................................................................................	628
22 Interfaces..............................................................................................................................	630
Basic Interface Commands..............................................................................................................................................	630
clear counters..............................................................................................................................................................	630
clear dampening...........................................................................................................................................................	632
dampening....................................................................................................................................................................	633
default interface..........................................................................................................................................................	634

Contents 15

description....................................................................................................................................................................	635
duplex (10/100 Interfaces).........................................................................................................................................	636
encapsulation dot1q.....................................................................................................................................................	637
errdisable recovery cause...........................................................................................................................................	637
errdisable recovery interval........................................................................................................................................	638
flowcontrol...................................................................................................................................................................	638
interface........................................................................................................................................................................	641
interface group............................................................................................................................................................	642
interface loopback.......................................................................................................................................................	643
interface managementEthernet................................................................................................................................	644
interface null.................................................................................................................................................................	645
interface range.............................................................................................................................................................	646
interface range macro (define).................................................................................................................................	649
interface range macro name......................................................................................................................................	650
interface vlan................................................................................................................................................................	651
intf-type cr4 autoneg..................................................................................................................................................	652
keepalive.......................................................................................................................................................................	653
monitor interface.........................................................................................................................................................	654
mtu................................................................................................................................................................................	656
negotiation auto...........................................................................................................................................................	657
no port-delay-restore (Interface Mode)..................................................................................................................	659
port-delay-restore (Configuration Mode)................................................................................................................	660
portmode hybrid..........................................................................................................................................................	660
rate-interval..................................................................................................................................................................	662
rate-interval (Configuration Mode)..........................................................................................................................	663
show config..................................................................................................................................................................	663
show config (for speed).............................................................................................................................................	664
show config (from INTERFACE RANGE mode).....................................................................................................	664
show interfaces...........................................................................................................................................................	665
show interfaces configured........................................................................................................................................	671
show interfaces dampening.......................................................................................................................................	672
show interfaces stack-unit.........................................................................................................................................	673
show interfaces status................................................................................................................................................	674
show interfaces vlan...................................................................................................................................................	676
show system stack-unit quad-port-profile...............................................................................................................	677
stack-unit portmode quad..........................................................................................................................................	678
show interfaces switchport........................................................................................................................................	678
show interfaces transceiver.......................................................................................................................................	680
show range...................................................................................................................................................................	685
shutdown......................................................................................................................................................................	686
speed (for 10/100/1000/10000 interfaces)............................................................................................................	687
speed (Management interface).................................................................................................................................	688
stack-unit portmode...................................................................................................................................................	689
switchport....................................................................................................................................................................	690
wavelength....................................................................................................................................................................	691
Port Channel Commands.................................................................................................................................................	692
channel-member..........................................................................................................................................................	692
group.............................................................................................................................................................................	693
interface port-channel................................................................................................................................................	694
minimum-links..............................................................................................................................................................	696

16 Contents

port-channel failover-group.......................................................................................................................................	696
show interfaces port-channel....................................................................................................................................	697
show port-channel-flow.............................................................................................................................................	700
ip http source-interface....................................................................................................................................................	701
23 IPv4 Routing..........................................................................................................................	703
arp.......................................................................................................................................................................................	704
arp backoff-time................................................................................................................................................................	705
arp learn-enable.................................................................................................................................................................	706
arp max-entries..................................................................................................................................................................	706
arp retries...........................................................................................................................................................................	707
arp timeout.........................................................................................................................................................................	708
clear arp-cache..................................................................................................................................................................	709
clear host.............................................................................................................................................................................	710
clear ip fib stack-unit.........................................................................................................................................................	710
clear ip route........................................................................................................................................................................	711
clear tcp statistics..............................................................................................................................................................	712
debug arp............................................................................................................................................................................	713
debug ip dhcp.....................................................................................................................................................................	714
debug ip icmp......................................................................................................................................................................	715
debug ip packet..................................................................................................................................................................	717
icmp6-redirect enable........................................................................................................................................................	719
ip address............................................................................................................................................................................	719
ip directed-broadcast........................................................................................................................................................	720
ip domain-list.......................................................................................................................................................................	721
ip domain-lookup................................................................................................................................................................	722
ip domain-name.................................................................................................................................................................	723
ip helper-address...............................................................................................................................................................	724
ip helper-address hop-count disable...............................................................................................................................	725
ip host.................................................................................................................................................................................	725
ip icmp source-interface...................................................................................................................................................	726
ipv6 icmp source-interface...............................................................................................................................................	727
ip max-frag-count.............................................................................................................................................................	729
ip name-server...................................................................................................................................................................	729
ip proxy-arp........................................................................................................................................................................	730
ip route.................................................................................................................................................................................	731
ip source-route...................................................................................................................................................................	733
ip tcp initial-time................................................................................................................................................................	734
ip unknown-unicast...........................................................................................................................................................	735
ipv4 unicast-host-route....................................................................................................................................................	735
show ip tcp initial-time......................................................................................................................................................	736
ip unreachables..................................................................................................................................................................	736
load-balance.......................................................................................................................................................................	737
load-balance hg..................................................................................................................................................................	738
management route............................................................................................................................................................	740
show arp..............................................................................................................................................................................	741
show arp retries.................................................................................................................................................................	743
show hosts.........................................................................................................................................................................	744
show ip cam stack-unit.....................................................................................................................................................	745
show ip fib stack-unit........................................................................................................................................................	747

Contents 17

show ip flow.......................................................................................................................................................................	749
show ip interface...............................................................................................................................................................	750
show ip management-route.............................................................................................................................................	752
show ip protocols..............................................................................................................................................................	753
show ip route.....................................................................................................................................................................	754
show ip route list...............................................................................................................................................................	758
show ip route summary....................................................................................................................................................	759
show ip traffic....................................................................................................................................................................	760
show tcp statistics............................................................................................................................................................	762
24 IPv6 Basics.............................................................................................................................	765
cam-ipv6 extended-prefix................................................................................................................................................	765
clear ipv6 route..................................................................................................................................................................	766
maximum dynamic-routes-ipv6.......................................................................................................................................	766
show cam-ipv6 extended-prefix......................................................................................................................................	767
ipv6 unicast-host-route....................................................................................................................................................	768
ipv6 nd disable-reachable-timer......................................................................................................................................	768
ipv6 nd dns-server ........................................................................................................................................................	769
ipv6 nd reachable-time.....................................................................................................................................................	769
ipv6 route...........................................................................................................................................................................	770
show ipv6 management-route.........................................................................................................................................	772
show ipv6 route.................................................................................................................................................................	773
25 IPv6 Access Control Lists (IPv6 ACLs)......................................................................................	776
show cam-acl-egress........................................................................................................................................................	776
show cam-acl.....................................................................................................................................................................	777
permit icmp.........................................................................................................................................................................	779
permit..................................................................................................................................................................................	780
ipv6 control-plane egress-filter........................................................................................................................................	781
ipv6 access-list...................................................................................................................................................................	781
cam-acl-egress..................................................................................................................................................................	782
cam-acl...............................................................................................................................................................................	783
26 Intermediate System to Intermediate System (IS-IS)................................................................	785
adjacency-check................................................................................................................................................................	786
advertise.............................................................................................................................................................................	787
area-password...................................................................................................................................................................	788
clear config.........................................................................................................................................................................	789
clear isis..............................................................................................................................................................................	789
clns host.............................................................................................................................................................................	790
debug isis.............................................................................................................................................................................	791
debug isis adj-packets.......................................................................................................................................................	791
debug isis local-updates....................................................................................................................................................	792
debug isis snp-packets.....................................................................................................................................................	793
debug isis spf-triggers......................................................................................................................................................	794
debug isis update-packets...............................................................................................................................................	795
default-information originate...........................................................................................................................................	796
description..........................................................................................................................................................................	797
distance...............................................................................................................................................................................	797

18 Contents

distribute-list in..................................................................................................................................................................	798
distribute-list out...............................................................................................................................................................	799
distribute-list redistributed-override...............................................................................................................................	800
domain-password...............................................................................................................................................................	801
graceful-restart ietf..........................................................................................................................................................	802
graceful-restart interval...................................................................................................................................................	802
graceful-restart restart-wait............................................................................................................................................	803
graceful-restart t1.............................................................................................................................................................	804
graceful-restart t2............................................................................................................................................................	805
graceful-restart t3............................................................................................................................................................	805
hello padding......................................................................................................................................................................	806
hostname dynamic............................................................................................................................................................	807
ignore-lsp-errors................................................................................................................................................................	808
ip router isis........................................................................................................................................................................	808
ipv6 router isis...................................................................................................................................................................	809
isis circuit-type...................................................................................................................................................................	810
isis csnp-interval..................................................................................................................................................................	811
isis hello-interval.................................................................................................................................................................	812
isis hello-multiplier..............................................................................................................................................................	812
isis hello padding.................................................................................................................................................................	813
isis ipv6 metric....................................................................................................................................................................	814
isis metric............................................................................................................................................................................	815
isis network point-to-point...............................................................................................................................................	816
isis password.......................................................................................................................................................................	816
isis priority...........................................................................................................................................................................	817
is-type..................................................................................................................................................................................	818
log-adjacency-changes.....................................................................................................................................................	819
lsp-gen-interval..................................................................................................................................................................	820
lsp-mtu................................................................................................................................................................................	821
lsp-refresh-interval............................................................................................................................................................	821
max-area-addresses.........................................................................................................................................................	822
max-lsp-lifetime.................................................................................................................................................................	823
maximum-paths.................................................................................................................................................................	824
metric-style........................................................................................................................................................................	824
multi-topology....................................................................................................................................................................	825
net.......................................................................................................................................................................................	826
passive-interface...............................................................................................................................................................	827
redistribute.........................................................................................................................................................................	828
redistribute bgp.................................................................................................................................................................	829
redistribute ospf................................................................................................................................................................	830
router isis............................................................................................................................................................................	832
set-overload-bit.................................................................................................................................................................	832
show config........................................................................................................................................................................	833
show isis database............................................................................................................................................................	834
show isis graceful-restart detail.......................................................................................................................................	837
show isis hostname...........................................................................................................................................................	838
show isis interface.............................................................................................................................................................	838
show isis neighbors...........................................................................................................................................................	840
show isis protocol...............................................................................................................................................................	841
show isis traffic..................................................................................................................................................................	842

Contents 19

spf-interval.........................................................................................................................................................................	844
27 Link Aggregation Control Protocol (LACP)................................................................................	846
clear lacp counters............................................................................................................................................................	846
debug lacp..........................................................................................................................................................................	847
lacp long-timeout..............................................................................................................................................................	848
lacp port-priority................................................................................................................................................................	849
lacp system-priority..........................................................................................................................................................	849
port-channel-protocol lacp..............................................................................................................................................	850
show lacp............................................................................................................................................................................	851
28 Layer 2...................................................................................................................................	853
MAC Addressing Commands...........................................................................................................................................	853
mac-address-table aging-time...................................................................................................................................	853
mac-address-table disable-learning..........................................................................................................................	854
mac-address-table static............................................................................................................................................	854
mac-address-table station-move refresh-arp.........................................................................................................	855
mac learning-limit........................................................................................................................................................	856
mac learning-limit learn-limit-violation......................................................................................................................	857
mac learning-limit mac-address-sticky.....................................................................................................................	858
mac learning-limit station-move-violation................................................................................................................	859
mac learning-limit reset..............................................................................................................................................	860
mac port-security.........................................................................................................................................................	861
show mac-address-table.............................................................................................................................................	861
show mac-address-table aging-time........................................................................................................................	863
show mac learning-limit..............................................................................................................................................	864
Virtual LAN (VLAN) Commands.....................................................................................................................................	865
default vlan-id..............................................................................................................................................................	865
description....................................................................................................................................................................	866
default-vlan disable......................................................................................................................................................	867
name..............................................................................................................................................................................	867
show config..................................................................................................................................................................	868
show vlan......................................................................................................................................................................	869
tagged...........................................................................................................................................................................	872
track ip..........................................................................................................................................................................	873
untagged.......................................................................................................................................................................	874
Far-End Failure Detection (FEFD)..................................................................................................................................	875
debug fefd....................................................................................................................................................................	875
fefd................................................................................................................................................................................	876
fefd disable...................................................................................................................................................................	877
fefd interval..................................................................................................................................................................	878
fefd mode.....................................................................................................................................................................	878
fefd reset......................................................................................................................................................................	879
fefd-global interval......................................................................................................................................................	880
fefd-global.....................................................................................................................................................................	881
show fefd.....................................................................................................................................................................	882
29 Link Layer Discovery Protocol (LLDP).......................................................................................	884
LLPD Commands..............................................................................................................................................................	884

20 Contents

advertise dot1-tlv.........................................................................................................................................................	884
advertise dot3-tlv........................................................................................................................................................	885
advertise interface-port-desc....................................................................................................................................	886
clear lldp counters.......................................................................................................................................................	886
clear lldp neighbors......................................................................................................................................................	887
debug lldp interface.....................................................................................................................................................	888
disable...........................................................................................................................................................................	889
hello...............................................................................................................................................................................	890
mode..............................................................................................................................................................................	891
multiplier........................................................................................................................................................................	891
protocol lldp (Configuration)......................................................................................................................................	892
protocol lldp (Interface)..............................................................................................................................................	893
show lldp neighbors.....................................................................................................................................................	894
show lldp statistics......................................................................................................................................................	897
snmp-notification-interval..........................................................................................................................................	897
LLDP-MED Commands....................................................................................................................................................	898
advertise med guest-voice.........................................................................................................................................	898
advertise med guest-voice-signaling........................................................................................................................	899
advertise med location-identification........................................................................................................................	900
advertise med power-via-mdi.....................................................................................................................................	901
advertise med softphone-voice.................................................................................................................................	902
advertise med streaming-video.................................................................................................................................	903
advertise med video-conferencing...........................................................................................................................	903
advertise med video-signaling...................................................................................................................................	904
advertise med voice....................................................................................................................................................	905
advertise med voice-signaling...................................................................................................................................	906
30 Microsoft Network Load Balancing...........................................................................................	908
arp (for Multicast MAC Address)...................................................................................................................................	908
mac-address-table static (for Multicast MAC Address).............................................................................................	909
ip vlan-flooding...................................................................................................................................................................	910
31 Multicast Source Discovery Protocol (MSDP).............................................................................	911
clear ip msdp peer...............................................................................................................................................................	911
clear ip msdp sa-cache......................................................................................................................................................	912
clear ip msdp statistic........................................................................................................................................................	913
ip msdp cache-rejected-sa...............................................................................................................................................	913
ip msdp default-peer.........................................................................................................................................................	914
ip msdp log-adjacency-changes.......................................................................................................................................	915
ip msdp mesh-group..........................................................................................................................................................	916
ip msdp originator-id..........................................................................................................................................................	916
ip msdp peer.......................................................................................................................................................................	917
ip msdp redistribute...........................................................................................................................................................	919
ip msdp sa-filter..................................................................................................................................................................	919
ip msdp sa-limit..................................................................................................................................................................	920
ip msdp shutdown..............................................................................................................................................................	921
ip multicast-msdp..............................................................................................................................................................	922
show ip msdp.....................................................................................................................................................................	922
show ip msdp sa-cache rejected-sa...............................................................................................................................	923

Contents 21

32 Multicast Listener Discovery Protocol......................................................................................	925
clear ipv6 mld groups........................................................................................................................................................	925
debug ipv6 mld..................................................................................................................................................................	926
ipv6 mld explicit-tracking.................................................................................................................................................	926
ipv6 mld last-member-query-interval.............................................................................................................................	926
ipv6 mld query-interval.....................................................................................................................................................	927
ipv6 mld query-max-resp-time........................................................................................................................................	927
ipv6 mld version.................................................................................................................................................................	928
show ipv6 mld groups.......................................................................................................................................................	928
show ipv6 mld interface...................................................................................................................................................	929
MLD Snooping...................................................................................................................................................................	929
clear ipv6 mld snooping groups.................................................................................................................................	930
debug ipv6 mld snooping............................................................................................................................................	930
ipv6 mld snooping........................................................................................................................................................	931
ipv6 mld snooping enable............................................................................................................................................	931
ipv6 mld snooping explicit-tracking............................................................................................................................	931
ipv6 mld snooping mrouter.........................................................................................................................................	932
ipv6 mld snooping querier..........................................................................................................................................	932
show ipv6 mld snooping groups................................................................................................................................	933
show ipv6 mld snooping interface.............................................................................................................................	933
show ipv6 mld snooping mrouter..............................................................................................................................	934
33 Multiple Spanning Tree Protocol (MSTP).................................................................................	935
debug spanning-tree mstp...............................................................................................................................................	935
disable.................................................................................................................................................................................	936
forward-delay.....................................................................................................................................................................	937
hello-time............................................................................................................................................................................	938
max-age..............................................................................................................................................................................	939
msti.....................................................................................................................................................................................	939
name...................................................................................................................................................................................	940
port-channel path-cost custom.......................................................................................................................................	941
protocol spanning-tree mstp...........................................................................................................................................	942
revision................................................................................................................................................................................	942
show config........................................................................................................................................................................	943
show spanning-tree mst configuration...........................................................................................................................	944
show spanning-tree msti..................................................................................................................................................	945
spanning-tree.....................................................................................................................................................................	947
spanning-tree msti............................................................................................................................................................	948
tc-flush-standard..............................................................................................................................................................	949
34 Multicast................................................................................................................................	951
IPv4 Multicast Commands................................................................................................................................................	951
clear ip mroute..............................................................................................................................................................	951
ip mroute......................................................................................................................................................................	952
ip multicast-limit..........................................................................................................................................................	953
ip multicast-routing.....................................................................................................................................................	954
mtrace..........................................................................................................................................................................	955
show ip multicast-cam................................................................................................................................................	956

22 Contents

show ip mroute............................................................................................................................................................	957
show ip rpf...................................................................................................................................................................	959
IPv6 Multicast Commands...............................................................................................................................................	960
clear ipv6 mroute........................................................................................................................................................	960
ipv6 multicast-routing.................................................................................................................................................	960
show ipv6 mroute........................................................................................................................................................	961
show ipv6 multicast-cam...........................................................................................................................................	962
show ipv6 rpf...............................................................................................................................................................	963
35 Neighbor Discovery Protocol (NDP).........................................................................................	964
IPv6 Router Advertisement (RA) Guard........................................................................................................................	964
clear ipv6 neighbors....................................................................................................................................................	964
debug ipv6 nd ra–guard.............................................................................................................................................	965
device–role...................................................................................................................................................................	966
hop–limit.......................................................................................................................................................................	967
ipv6 nd ra–guard attach–policy................................................................................................................................	967
ipv6 nd ra–guard enable.............................................................................................................................................	968
ipv6 nd ra–guard policy..............................................................................................................................................	968
ipv6 neighbor...............................................................................................................................................................	969
managed-config-flag...................................................................................................................................................	970
match ra........................................................................................................................................................................	971
match ra........................................................................................................................................................................	972
mtu................................................................................................................................................................................	972
other–config–flag.......................................................................................................................................................	973
reachable–time............................................................................................................................................................	974
retrans-time..................................................................................................................................................................	974
router–lifetime.............................................................................................................................................................	975
router–preference maximum.....................................................................................................................................	976
show config..................................................................................................................................................................	976
show ipv6 nd ra–guard policy....................................................................................................................................	977
show ipv6 neighbors...................................................................................................................................................	979
trusted–port................................................................................................................................................................	980
36 Object Tracking......................................................................................................................	981
IPv4 Object Tracking Commands....................................................................................................................................	981
debug track...................................................................................................................................................................	981
delay..............................................................................................................................................................................	982
description....................................................................................................................................................................	983
show running-config track.........................................................................................................................................	983
show track....................................................................................................................................................................	984
threshold metric..........................................................................................................................................................	986
track interface ip routing............................................................................................................................................	987
track interface line-protocol.......................................................................................................................................	988
track ip route metric threshold..................................................................................................................................	989
track ip route reachability...........................................................................................................................................	990
track reachability refresh............................................................................................................................................	991
track resolution ip route..............................................................................................................................................	992
IPv6 Object Tracking Commands...................................................................................................................................	993
show track ipv6 route.................................................................................................................................................	993

Contents 23

track interface ipv6 routing.......................................................................................................................................	995
track ipv6 route metric threshold.............................................................................................................................	995
track ipv6 route reachability.......................................................................................................................................	997
track resolution ipv6 route.........................................................................................................................................	997
37 Open Shortest Path First (OSPFv2 and OSPFv3)......................................................................	999
OSPFv2 Commands.........................................................................................................................................................	999
area default-cost.........................................................................................................................................................	999
area nssa.....................................................................................................................................................................	1000
area range....................................................................................................................................................................	1001
area stub.....................................................................................................................................................................	1002
auto-cost....................................................................................................................................................................	1003
clear ip ospf................................................................................................................................................................	1004
clear ip ospf statistics................................................................................................................................................	1005
debug ip ospf..............................................................................................................................................................	1006
default-information originate....................................................................................................................................	1008
default-metric.............................................................................................................................................................	1009
description...................................................................................................................................................................	1010
distance........................................................................................................................................................................	1010
distance ospf................................................................................................................................................................	1011
distribute-list in............................................................................................................................................................	1012
distribute-list out.........................................................................................................................................................	1013
fast-convergence.......................................................................................................................................................	1014
flood-2328...................................................................................................................................................................	1015
graceful-restart grace-period...................................................................................................................................	1016
graceful-restart helper-reject....................................................................................................................................	1017
graceful-restart mode................................................................................................................................................	1018
graceful-restart role...................................................................................................................................................	1019
ip ospf auth-change-wait-time.................................................................................................................................	1019
ip ospf authentication-key........................................................................................................................................	1020
ip ospf cost..................................................................................................................................................................	1021
ip ospf dead-interval..................................................................................................................................................	1022
ip ospf hello-interval..................................................................................................................................................	1023
ip ospf message-digest-key......................................................................................................................................	1024
ip ospf mtu-ignore.....................................................................................................................................................	1025
ip ospf network..........................................................................................................................................................	1025
ip ospf priority.............................................................................................................................................................	1026
ip ospf retransmit-interval.........................................................................................................................................	1027
ip ospf transmit-delay................................................................................................................................................	1028
log-adjacency-changes.............................................................................................................................................	1029
maximum-paths.........................................................................................................................................................	1029
mib-binding.................................................................................................................................................................	1030
network area...............................................................................................................................................................	1031
passive-interface........................................................................................................................................................	1032
redistribute..................................................................................................................................................................	1033
redistribute bgp..........................................................................................................................................................	1035
redistribute isis...........................................................................................................................................................	1036
router-id......................................................................................................................................................................	1037
router ospf..................................................................................................................................................................	1038
show config................................................................................................................................................................	1039

24 Contents

show ip ospf...............................................................................................................................................................	1039
show ip ospf asbr........................................................................................................................................................	1041
show ip ospf database...............................................................................................................................................	1042
show ip ospf database asbr-summary....................................................................................................................	1043
show ip ospf database external...............................................................................................................................	1045
show ip ospf database network...............................................................................................................................	1047
show ip ospf database nssa-external......................................................................................................................	1049
show ip ospf database opaque-area.......................................................................................................................	1050
show ip ospf database opaque-as...........................................................................................................................	1052
show ip ospf database opaque-link.........................................................................................................................	1053
show ip ospf database router...................................................................................................................................	1054
show ip ospf database summary..............................................................................................................................	1057
show ip ospf interface...............................................................................................................................................	1059
show ip ospf neighbor................................................................................................................................................	1061
show ip ospf routes...................................................................................................................................................	1062
show ip ospf statistics...............................................................................................................................................	1063
show ip ospf timers rate-limit...................................................................................................................................	1066
show ip ospf topology...............................................................................................................................................	1067
summary-address......................................................................................................................................................	1068
timers spf....................................................................................................................................................................	1069
timers throttle lsa all..................................................................................................................................................	1070
timers throttle lsa arrival............................................................................................................................................	1071
OSPFv3 Commands.........................................................................................................................................................	1071
area authentication....................................................................................................................................................	1072
area encryption...........................................................................................................................................................	1073
area nssa.....................................................................................................................................................................	1074
auto-cost.....................................................................................................................................................................	1075
clear ipv6 ospf process.............................................................................................................................................	1076
debug ipv6 ospf bfd...................................................................................................................................................	1076
debug ipv6 ospf events.............................................................................................................................................	1078
debug ipv6 ospf packet.............................................................................................................................................	1079
debug ipv6 ospf spf....................................................................................................................................................	1081
default-information originate....................................................................................................................................	1082
graceful-restart grace-period...................................................................................................................................	1083
graceful-restart mode...............................................................................................................................................	1084
ipv6 ospf area.............................................................................................................................................................	1084
ipv6 ospf authentication...........................................................................................................................................	1085
ipv6 ospf cost.............................................................................................................................................................	1086
ipv6 ospf dead-interval..............................................................................................................................................	1087
ipv6 ospf encryption..................................................................................................................................................	1088
ipv6 ospf graceful-restart helper-reject.................................................................................................................	1089
ipv6 ospf hello-interval..............................................................................................................................................	1090
ipv6 ospf priority........................................................................................................................................................	1090
ipv6 router ospf..........................................................................................................................................................	1091
maximum-paths.........................................................................................................................................................	1092
max-metric router-lsa................................................................................................................................................	1092
passive-interface........................................................................................................................................................	1094
redistribute..................................................................................................................................................................	1095
router-id......................................................................................................................................................................	1096
show crypto ipsec policy...........................................................................................................................................	1097

Contents 25

show crypto ipsec sa ipv6........................................................................................................................................	1098
show ipv6 ospf database...........................................................................................................................................	1100
show ipv6 ospf interface...........................................................................................................................................	1103
show ipv6 ospf neighbor............................................................................................................................................	1104
snmp context..............................................................................................................................................................	1105
timers spf.....................................................................................................................................................................	1106
38 Policy-based Routing (PBR)...................................................................................................	1108
description.........................................................................................................................................................................	1108
ip redirect-group...............................................................................................................................................................	1109
ip redirect-list.....................................................................................................................................................................	1110
permit..................................................................................................................................................................................	1110
redirect................................................................................................................................................................................	1112
seq.......................................................................................................................................................................................	1113
show cam pbr....................................................................................................................................................................	1115
show ip redirect-list...........................................................................................................................................................	1116
39 PIM-Sparse Mode (PIM-SM)...................................................................................................	1117
IPv4 PIM-Sparse Mode Commands................................................................................................................................	1117
clear ip pim rp-mapping...............................................................................................................................................	1117
clear ip pim tib..............................................................................................................................................................	1118
debug ip pim.................................................................................................................................................................	1119
ip pim bsr-border........................................................................................................................................................	1120
ip pim bsr-candidate...................................................................................................................................................	1120
ip pim dr-priority..........................................................................................................................................................	1121
ip pim join-filter............................................................................................................................................................	1122
ip pim neighbor-filter..................................................................................................................................................	1123
ip pim query-interval...................................................................................................................................................	1124
ip pim register-filter....................................................................................................................................................	1125
ip pim rp-address........................................................................................................................................................	1125
ip pim rp-candidate.....................................................................................................................................................	1126
ip pim sparse-mode.....................................................................................................................................................	1127
ip pim sparse-mode sg-expiry-timer.........................................................................................................................	1128
ip pim ssm-range.........................................................................................................................................................	1129
ip pim spt-threshold...................................................................................................................................................	1130
show ip pim bsr-router................................................................................................................................................	1131
show ip pim interface.................................................................................................................................................	1132
show ip pim neighbor.................................................................................................................................................	1133
show ip pim rp.............................................................................................................................................................	1134
show ip pim ssm-range..............................................................................................................................................	1136
show ip pim summary.................................................................................................................................................	1136
show ip pim tib............................................................................................................................................................	1138
IPv6 PIM-Sparse Mode Commands..............................................................................................................................	1140
clear ipv6 pim tib.........................................................................................................................................................	1140
debug ipv6 pim............................................................................................................................................................	1140
ipv6 pim bsr-border.....................................................................................................................................................	1141
ipv6 pim bsr-candidate...............................................................................................................................................	1141
ipv6 pim dr-priority.....................................................................................................................................................	1142
ipv6 pim query-interval..............................................................................................................................................	1142

26 Contents

ipv6 pim rp-address....................................................................................................................................................	1143
ipv6 pim rp-candidate................................................................................................................................................	1143
ipv6 pim sparse-mode................................................................................................................................................	1144
ipv6 pim sparse-mode sg-expiry-timer....................................................................................................................	1144
ipv6 pim spt-threshold...............................................................................................................................................	1145
show ipv6 pim bsr-router..........................................................................................................................................	1146
show ipv6 pim interface.............................................................................................................................................	1146
show ipv6 pim neighbor.............................................................................................................................................	1147
show ipv6 pim rp.........................................................................................................................................................	1147
show ipv6 pim summary............................................................................................................................................	1148
show ipv6 pim tib........................................................................................................................................................	1149
40 Port Monitoring.....................................................................................................................	1151
description..........................................................................................................................................................................	1151
ip access-group................................................................................................................................................................	1152
ipv6 access-group............................................................................................................................................................	1152
erpm...................................................................................................................................................................................	1153
monitor multicast-queue..................................................................................................................................................	1153
monitor session.................................................................................................................................................................	1154
rate-limit............................................................................................................................................................................	1155
show config.......................................................................................................................................................................	1156
show monitor session......................................................................................................................................................	1156
show running-config monitor session............................................................................................................................	1158
source (port monitoring).................................................................................................................................................	1159
41 Private VLAN (PVLAN)............................................................................................................	1161
ip local-proxy-arp..............................................................................................................................................................	1162
private-vlan mode.............................................................................................................................................................	1163
private-vlan mapping secondary-vlan............................................................................................................................	1164
switchport mode private-vlan.........................................................................................................................................	1164
42 Per-VLAN Spanning Tree Plus (PVST+)...................................................................................	1166
description.........................................................................................................................................................................	1166
disable.................................................................................................................................................................................	1167
extend system-id..............................................................................................................................................................	1168
protocol spanning-tree pvst............................................................................................................................................	1169
show spanning-tree pvst.................................................................................................................................................	1170
spanning-tree pvst............................................................................................................................................................	1173
spanning-tree pvst err-disable........................................................................................................................................	1175
tc-flush-standard..............................................................................................................................................................	1175
vlan bridge-priority............................................................................................................................................................	1176
vlan forward-delay............................................................................................................................................................	1177
vlan hello-time...................................................................................................................................................................	1178
vlan max-age.....................................................................................................................................................................	1179
43 Quality of Service (QoS).........................................................................................................	1181
Global Configuration Commands.....................................................................................................................................	1181
qos-rate-adjust............................................................................................................................................................	1181
service-class bandwidth-percentage.......................................................................................................................	1182

Contents 27

service-class dot1p-mapping.....................................................................................................................................	1182
show qos dot1p-queue-mapping..............................................................................................................................	1183
strict-priority unicast..................................................................................................................................................	1184
Per-Port QoS Commands...............................................................................................................................................	1185
dot1p-priority...............................................................................................................................................................	1185
rate police....................................................................................................................................................................	1185
rate-shape...................................................................................................................................................................	1186
service-class dynamic dot1p......................................................................................................................................	1187
Policy-Based QoS Commands........................................................................................................................................	1189
bandwidth-percentage...............................................................................................................................................	1189
buffer-stats-snapshot................................................................................................................................................	1190
class-map.....................................................................................................................................................................	1190
clear qos statistics.......................................................................................................................................................	1191
description...................................................................................................................................................................	1192
match ip access-group...............................................................................................................................................	1193
match ip dscp..............................................................................................................................................................	1194
match ip precedence..................................................................................................................................................	1195
match mac access-group..........................................................................................................................................	1197
match mac dot1p........................................................................................................................................................	1197
match mac vlan...........................................................................................................................................................	1198
policy-aggregate.........................................................................................................................................................	1199
policy-map-input........................................................................................................................................................	1200
policy-map-output......................................................................................................................................................	1201
qos-policy-input.........................................................................................................................................................	1202
qos-policy-output.......................................................................................................................................................	1203
rate-police...................................................................................................................................................................	1204
rate-shape...................................................................................................................................................................	1205
service-policy input....................................................................................................................................................	1206
service-policy output.................................................................................................................................................	1207
service-queue.............................................................................................................................................................	1208
set................................................................................................................................................................................	1209
show qos class-map...................................................................................................................................................	1210
show qos policy-map..................................................................................................................................................	1211
show qos policy-map-input.......................................................................................................................................	1212
show qos policy-map-output....................................................................................................................................	1213
show qos qos-policy-input.........................................................................................................................................	1214
show qos qos-policy-output......................................................................................................................................	1215
show qos statistics.....................................................................................................................................................	1216
show qos wred-profile...............................................................................................................................................	1218
service-class buffer shared-threshold-weight........................................................................................................	1219
test cam-usage..........................................................................................................................................................	1220
threshold.....................................................................................................................................................................	1222
trust.............................................................................................................................................................................	1223
wred.............................................................................................................................................................................	1224
wred ecn.....................................................................................................................................................................	1225
wred weight................................................................................................................................................................	1226
wred-profile................................................................................................................................................................	1226
rate shape...................................................................................................................................................................	1227
service-pool wred......................................................................................................................................................	1229
DSCP Color Map Commands.........................................................................................................................................	1230

28 Contents

dscp.............................................................................................................................................................................	1230
qos dscp-color-map....................................................................................................................................................	1231
qos dscp-color-policy................................................................................................................................................	1232
show qos dscp-color-policy......................................................................................................................................	1233
show qos dscp-color-map........................................................................................................................................	1234
44 Routing Information Protocol (RIP)........................................................................................	1235
auto-summary..................................................................................................................................................................	1235
clear ip rip..........................................................................................................................................................................	1236
debug ip rip.......................................................................................................................................................................	1237
default-information originate..........................................................................................................................................	1238
default-metric...................................................................................................................................................................	1239
description........................................................................................................................................................................	1240
distance.............................................................................................................................................................................	1240
distribute-list in.................................................................................................................................................................	1241
distribute-list out..............................................................................................................................................................	1242
ip poison-reverse..............................................................................................................................................................	1243
ip rip receive version........................................................................................................................................................	1244
ip rip send version............................................................................................................................................................	1245
ip split-horizon..................................................................................................................................................................	1246
maximum-paths................................................................................................................................................................	1247
neighbor.............................................................................................................................................................................	1247
network.............................................................................................................................................................................	1248
offset-list...........................................................................................................................................................................	1249
output-delay.....................................................................................................................................................................	1250
passive-interface..............................................................................................................................................................	1251
redistribute........................................................................................................................................................................	1252
redistribute isis.................................................................................................................................................................	1253
redistribute ospf...............................................................................................................................................................	1254
router rip...........................................................................................................................................................................	1254
show config......................................................................................................................................................................	1255
show ip rip database........................................................................................................................................................	1256
show running-config rip..................................................................................................................................................	1257
timers basic.......................................................................................................................................................................	1258
version...............................................................................................................................................................................	1259
45 Remote Monitoring (RMON)...................................................................................................	1261
rmon alarm.........................................................................................................................................................................	1261
rmon collection history....................................................................................................................................................	1262
rmon collection statistics................................................................................................................................................	1263
rmon event.......................................................................................................................................................................	1264
rmon hc-alarm..................................................................................................................................................................	1265
show rmon........................................................................................................................................................................	1266
show rmon alarms............................................................................................................................................................	1267
show rmon events...........................................................................................................................................................	1269
show rmon hc-alarm........................................................................................................................................................	1270
show rmon history............................................................................................................................................................	1271
show rmon log..................................................................................................................................................................	1273
show rmon statistics........................................................................................................................................................	1274

Contents 29

46 Rapid Spanning Tree Protocol (RSTP).....................................................................................	1276
bridge-priority...................................................................................................................................................................	1276
debug spanning-tree rstp................................................................................................................................................	1277
description.........................................................................................................................................................................	1278
disable................................................................................................................................................................................	1279
forward-delay...................................................................................................................................................................	1279
hello-time..........................................................................................................................................................................	1280
max-age.............................................................................................................................................................................	1281
protocol spanning-tree rstp............................................................................................................................................	1282
show config......................................................................................................................................................................	1283
show spanning-tree rstp.................................................................................................................................................	1283
spanning-tree rstp...........................................................................................................................................................	1285
tc-flush-standard.............................................................................................................................................................	1287
47 Security................................................................................................................................	1289
AAA Accounting Commands..........................................................................................................................................	1289
aaa accounting...........................................................................................................................................................	1289
aaa accounting suppress...........................................................................................................................................	1291
accounting..................................................................................................................................................................	1292
aaa radius group.........................................................................................................................................................	1292
show accounting........................................................................................................................................................	1293
Authorization and Privilege Commands........................................................................................................................	1294
authorization...............................................................................................................................................................	1294
aaa authorization commands....................................................................................................................................	1295
aaa authorization config-commands.......................................................................................................................	1296
aaa authorization exec...............................................................................................................................................	1297
privilege level (CONFIGURATION mode)...............................................................................................................	1298
privilege level (LINE mode).......................................................................................................................................	1299
Obscure Password Commands.....................................................................................................................................	1300
service obscure-passwords......................................................................................................................................	1300
Authentication and Password Commands....................................................................................................................	1301
aaa authentication enable..........................................................................................................................................	1301
aaa authentication login............................................................................................................................................	1302
aaa reauthenticate enable.........................................................................................................................................	1303
access-class................................................................................................................................................................	1304
enable password........................................................................................................................................................	1305
enable sha256-password..........................................................................................................................................	1306
enable restricted.........................................................................................................................................................	1307
enable secret..............................................................................................................................................................	1308
login authentication...................................................................................................................................................	1309
password......................................................................................................................................................................	1310
password-attributes....................................................................................................................................................	1311
secure-cli enable.........................................................................................................................................................	1312
service password-encryption....................................................................................................................................	1313
show privilege..............................................................................................................................................................	1313
show users...................................................................................................................................................................	1314
timeout login response...............................................................................................................................................	1315
username.....................................................................................................................................................................	1316

30 Contents