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Dell PowerConnect
8024/8132/8164 Series Systems
CLI Reference Guide
Regulatory Model: PC8024/PC8024F/ 
PC8132/PC8132F/PC8164/PC8164F
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Notes
 NOTE:  A NOTE indicates important information that helps you make better use of  
your computer.
 CAUTION:  A CAUTION indicates potential damage to hardware or loss of data if 
instructions are not followed.
____________________
Information in this publication is subject to change without notice. 
© 2013 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. 
is strictly forbidden.
Trademarks used in this text: Dell™, the DELL logo, and PowerConnect™ are trademarks of Dell 
Inc. StrataXGS 
InMon Corporation. Cisco 
United States and certain other countries. Microsoft 
Microsoft Corporation in the United States and/or other countries. 
Other trademarks and trade names may be used in this publication to refer to either the entities claiming 
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and 
trade names other than its own.
®
 is a registered trademark of Broadcom Corp. sFlow® is a registered trademark of 
®
 is a registered trademark of Cisco Systems, Inc. and/or its affiliates in the 
®
 and Windows®are registered trademarks of 
Regulatory Model PC8024/PC8024F/PC8132/PC8132F/PC8164/PC8164F 
2013 - March Rev. A02
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Contents
1  Command Groups  . . . . . . . . . . . . . . . . . . 77 
Introduction  . . . . . . . . . . . . . . . . . . . . . . .   77
Command Groups  . . . . . . . . . . . . . . . . . . . .   77
Mode Types  . . . . . . . . . . . . . . . . . . . . . . .   81
Layer 2 Commands
Data Center Technology Commands. . . . . . . . . . .  117
Layer 3 Commands . . . . . . . . . . . . . . . . . . . .  119
Utility Commands
. . . . . . . . . . . . . . . . . . . .  83 
 . . . . . . . . . . . . . . . . . . . . 146 
2  Using the CLI . . . . . . . . . . . . . . . . . . . . . 167 
Introduction  . . . . . . . . . . . . . . . . . . . . . . .  167
Entering and Editing CLI Commands. . . . . . . . . . .  167
CLI Command Modes
Starting the CLI
Using CLI Functions and Tools. . . . . . . . . . . . . .  198
 . . . . . . . . . . . . . . . . . . 177 
. . . . . . . . . . . . . . . . . . . . . . 190 
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3  Layer 2 Switching Commands . . . . . . . . 235
4  AAA Commands . . . . . . . . . . . . . . . . . . . 237 
TACACS+ Accounting . . . . . . . . . . . . . . . . . .  238
Commands in this Chapter. . . . . . . . . . . . . . . .  239
aaa authentication dot1x default . . . . . . . . . . . .  240
aaa authentication enable
. . . . . . . . . . . . . . . . 241 
aaa authentication login. . . . . . . . . . . . . . . . .  243
aaa authorization  . . . . . . . . . . . . . . . . . . . .  245
aaa authorization network default radius
. . . . . . . . 247 
aaa ias-user username  . . . . . . . . . . . . . . . . .  248
aaa new-model  . . . . . . . . . . . . . . . . . . . . .  249
clear (IAS)
 . . . . . . . . . . . . . . . . . . . . . . . . 250 
authorization . . . . . . . . . . . . . . . . . . . . . . .  250
enable authentication . . . . . . . . . . . . . . . . . .  252
enable password
 . . . . . . . . . . . . . . . . . . . . 253 
ip http authentication . . . . . . . . . . . . . . . . . .  254
ip https authentication. . . . . . . . . . . . . . . . . .  255
login authentication
. . . . . . . . . . . . . . . . . . . 256 
password (aaa IAS User Configuration). . . . . . . . .  257
password (Line Configuration)  . . . . . . . . . . . . .  258
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password (User EXEC) . . . . . . . . . . . . . . . . . .  259
show aaa ias-users
 . . . . . . . . . . . . . . . . . . . 260 
show aaa statistics  . . . . . . . . . . . . . . . . . . .  261
show authentication methods. . . . . . . . . . . . . .  262
show authorization methods
 . . . . . . . . . . . . . . 263 
show users accounts  . . . . . . . . . . . . . . . . . .  264
show users login-history  . . . . . . . . . . . . . . . .  266
username
. . . . . . . . . . . . . . . . . . . . . . . . . 267 
username unlock  . . . . . . . . . . . . . . . . . . . .  269
5  Administrative Profiles Commands . . . . 271 
Overview . . . . . . . . . . . . . . . . . . . . . . . . .  271
Commands in this Chapter
admin-profile. . . . . . . . . . . . . . . . . . . . . . .  273
description (Administrative Profile Config). . . . . . .  274
. . . . . . . . . . . . . . . . 272 
rule
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 
show admin-profiles. . . . . . . . . . . . . . . . . . .  276
show admin-profiles brief. . . . . . . . . . . . . . . .  277
show cli modes
 . . . . . . . . . . . . . . . . . . . . . 278 
6  ACL Commands . . . . . . . . . . . . . . . . . . . 281
ACL Logging  . . . . . . . . . . . . . . . . . . . . . . .  281
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Commands in this Chapter. . . . . . . . . . . . . . . .  284
access-list
. . . . . . . . . . . . . . . . . . . . . . . . 284 
deny | permit (IP ACL) . . . . . . . . . . . . . . . . . .  286
deny | permit (Mac-Access-List-Configuration)  . . . . 288  
ip access-group
 . . . . . . . . . . . . . . . . . . . . . 290 
mac access-group . . . . . . . . . . . . . . . . . . . .  291
mac access-list extended . . . . . . . . . . . . . . . .  292
mac access-list extended rename
 . . . . . . . . . . . 293 
service-acl input. . . . . . . . . . . . . . . . . . . . .  294
show service-acl interface . . . . . . . . . . . . . . .  295
show ip access-lists
. . . . . . . . . . . . . . . . . . . 296 
show mac access-list . . . . . . . . . . . . . . . . . .  297
7  Address Table Commands . . . . . . . . . . . 299 
Commands in this Chapter. . . . . . . . . . . . . . . .  300
clear mac address-table
. . . . . . . . . . . . . . . . . 300 
mac address-table aging-time  . . . . . . . . . . . . .  301
mac address-table multicast forbidden address . . . . 302  
mac address-table static vlan
. . . . . . . . . . . . . . 303 
port security . . . . . . . . . . . . . . . . . . . . . . .  304
port security max  . . . . . . . . . . . . . . . . . . . .  305
show mac address-table multicast
. . . . . . . . . . . 306 
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show mac address-table  . . . . . . . . . . . . . . . .  307
show mac address-table address
. . . . . . . . . . . . 309 
show mac address-table count . . . . . . . . . . . . .  310
show mac address-table dynamic  . . . . . . . . . . .  311
show mac address-table interface
 . . . . . . . . . . . 312 
show mac address-table static . . . . . . . . . . . . .  313
show mac address-table vlan . . . . . . . . . . . . . .  314
show ports security
 . . . . . . . . . . . . . . . . . . . 315 
show ports security addresses  . . . . . . . . . . . . .  317
8  Auto-VoIP Commands . . . . . . . . . . . . . . 319
Commands in this Chapter. . . . . . . . . . . . . . . .  319
show switchport voice
switchport voice detect auto  . . . . . . . . . . . . . .  323
 . . . . . . . . . . . . . . . . . 320 
9  CDP Interoperability Commands . . . . . . 325
Commands in this Chapter. . . . . . . . . . . . . . . .  325
clear isdp counters
clear isdp table  . . . . . . . . . . . . . . . . . . . . .  326
isdp advertise-v2. . . . . . . . . . . . . . . . . . . . .  326
isdp enable
isdp holdtime. . . . . . . . . . . . . . . . . . . . . . .  328
 . . . . . . . . . . . . . . . . . . . 325 
. . . . . . . . . . . . . . . . . . . . . . . . 327 
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isdp timer  . . . . . . . . . . . . . . . . . . . . . . . .  329
show isdp
 . . . . . . . . . . . . . . . . . . . . . . . . 329 
show isdp entry  . . . . . . . . . . . . . . . . . . . . .  330
show isdp interface . . . . . . . . . . . . . . . . . . .  332
show isdp neighbors
. . . . . . . . . . . . . . . . . . . 333 
show isdp traffic . . . . . . . . . . . . . . . . . . . . .  335
10 DHCP Layer 2 Relay Commands  . . . . . . 337 
Commands in this Chapter. . . . . . . . . . . . . . . .  337
dhcp l2relay (Global Configuration)
dhcp l2relay (Interface Configuration)  . . . . . . . . .  338
dhcp l2relay circuit-id . . . . . . . . . . . . . . . . . .  339
dhcp l2relay remote-id
. . . . . . . . . . . . . . . . . . 340 
dhcp l2relay trust  . . . . . . . . . . . . . . . . . . . .  340
dhcp l2relay vlan. . . . . . . . . . . . . . . . . . . . .  341
. . . . . . . . . . . 337 
show dhcp l2relay all
 . . . . . . . . . . . . . . . . . . 342 
show dhcp l2relay interface. . . . . . . . . . . . . . .  343
show dhcp l2relay stats interface. . . . . . . . . . . .  344
show dhcp l2relay subscription interface
 . . . . . . . 345 
show dhcp l2relay agent-option vlan . . . . . . . . . .  345
show dhcp l2relay vlan  . . . . . . . . . . . . . . . . .  347
show dhcp l2relay circuit-id vlan
. . . . . . . . . . . . 348 
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show dhcp l2relay remote-id vlan. . . . . . . . . . . .  349
clear dhcp l2relay statistics interface
 . . . . . . . . . 350 
11 DHCP Management Interface Commands  351
Commands in this Chapter. . . . . . . . . . . . . . . .  351
release dhcp . . . . . . . . . . . . . . . . . . . . . . .  352
renew dhcp
 . . . . . . . . . . . . . . . . . . . . . . . 353 
debug dhcp packet  . . . . . . . . . . . . . . . . . . .  354
show dhcp lease. . . . . . . . . . . . . . . . . . . . .  355
12 DHCP Snooping Commands . . . . . . . . . . 359
Commands in this Chapter. . . . . . . . . . . . . . . .  360
clear ip dhcp snooping binding . . . . . . . . . . . . .  360
clear ip dhcp snooping statistics . . . . . . . . . . . .  361
ip dhcp snooping
. . . . . . . . . . . . . . . . . . . . . 361 
ip dhcp snooping binding . . . . . . . . . . . . . . . .  362
ip dhcp snooping database . . . . . . . . . . . . . . .  363
ip dhcp snooping database write-delay
 . . . . . . . . 364 
ip dhcp snooping limit . . . . . . . . . . . . . . . . . .  365
ip dhcp snooping log-invalid  . . . . . . . . . . . . . .  366
ip dhcp snooping trust
. . . . . . . . . . . . . . . . . . 367 
ip dhcp snooping verify mac-address . . . . . . . . . .  367
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show ip dhcp snooping  . . . . . . . . . . . . . . . . .  368
show ip dhcp snooping binding
. . . . . . . . . . . . . 369 
show ip dhcp snooping database . . . . . . . . . . . .  370
show ip dhcp snooping interfaces  . . . . . . . . . . .  371
show ip dhcp snooping statistics
. . . . . . . . . . . . 372 
13 Dynamic ARP Inspection Commands  . . 375 
Commands in this Chapter. . . . . . . . . . . . . . . .  375
arp access-list . . . . . . . . . . . . . . . . . . . . . .  375
clear ip arp inspection statistics
ip arp inspection filter . . . . . . . . . . . . . . . . . .  377
ip arp inspection limit . . . . . . . . . . . . . . . . . .  377
ip arp inspection trust
. . . . . . . . . . . . . . . . . . 378 
ip arp inspection validate . . . . . . . . . . . . . . . .  379
ip arp inspection vlan . . . . . . . . . . . . . . . . . .  380
 . . . . . . . . . . . . 376 
permit ip host mac host
 . . . . . . . . . . . . . . . . . 381 
show arp access-list  . . . . . . . . . . . . . . . . . .  382
show ip arp inspection  . . . . . . . . . . . . . . . . .  382
show ip arp inspection vlan
. . . . . . . . . . . . . . . 385 
14 E-mail Alerting Commands  . . . . . . . . . . 387 
Commands in this Chapter. . . . . . . . . . . . . . . .  387
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logging email  . . . . . . . . . . . . . . . . . . . . . .  388
logging email urgent
. . . . . . . . . . . . . . . . . . . 390 
logging traps . . . . . . . . . . . . . . . . . . . . . . .  391
logging email message-type to-addr  . . . . . . . . . .  392
logging email from-addr
. . . . . . . . . . . . . . . . . 393 
logging email message-type subject . . . . . . . . . .  393
logging email logtime . . . . . . . . . . . . . . . . . .  394
logging email test message-type
 . . . . . . . . . . . . 395 
show logging email statistics . . . . . . . . . . . . . .  396
clear logging email statistics . . . . . . . . . . . . . .  396
security
. . . . . . . . . . . . . . . . . . . . . . . . . . 397 
mail-server ip-address | hostname  . . . . . . . . . . .  398
port (Mail Server Configuration Mode) . . . . . . . . .  399
username (Mail Server Configuration Mode)
. . . . . . 399 
password (Mail Server Configuration Mode). . . . . .  400
show mail-server  . . . . . . . . . . . . . . . . . . . .  401
15 Ethernet Configuration Commands . . . . 403
Commands in this Chapter. . . . . . . . . . . . . . . .  404
clear counters . . . . . . . . . . . . . . . . . . . . . .  404
description . . . . . . . . . . . . . . . . . . . . . . . .  405
duplex
 . . . . . . . . . . . . . . . . . . . . . . . . . . 406 
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flowcontrol. . . . . . . . . . . . . . . . . . . . . . . .  407
interface
 . . . . . . . . . . . . . . . . . . . . . . . . . 408 
interface range. . . . . . . . . . . . . . . . . . . . . .  409
mtu . . . . . . . . . . . . . . . . . . . . . . . . . . . .  410
show interfaces advertise
. . . . . . . . . . . . . . . . 411 
show interfaces configuration  . . . . . . . . . . . . .  413
show interfaces counters . . . . . . . . . . . . . . . .  415
show interfaces description
. . . . . . . . . . . . . . . 418 
show interfaces detail . . . . . . . . . . . . . . . . . .  419
show interfaces status  . . . . . . . . . . . . . . . . .  421
show statistics
. . . . . . . . . . . . . . . . . . . . . . 423 
show statistics switchport  . . . . . . . . . . . . . . .  426
show storm-control  . . . . . . . . . . . . . . . . . . .  428
shutdown
. . . . . . . . . . . . . . . . . . . . . . . . . 429 
speed . . . . . . . . . . . . . . . . . . . . . . . . . . .  429
storm-control broadcast . . . . . . . . . . . . . . . . .  431
storm-control multicast
storm-control unicast
 . . . . . . . . . . . . . . . . . 432 
 . . . . . . . . . . . . . . . . . . 433 
switchport protected  . . . . . . . . . . . . . . . . . .  434
switchport protected name
 . . . . . . . . . . . . . . . 435 
show switchport protected  . . . . . . . . . . . . . . .  436
Contents  12 
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16 Ethernet CFM Commands  . . . . . . . . . . . 437 
Commands in this Chapter. . . . . . . . . . . . . . . .  437
ethernet cfm domain . . . . . . . . . . . . . . . . . . .  438
service . . . . . . . . . . . . . . . . . . . . . . . . . .  439
ethernet cfm cc level
 . . . . . . . . . . . . . . . . . . 440 
ethernet cfm mep level  . . . . . . . . . . . . . . . . .  441
ethernet cfm mep enable  . . . . . . . . . . . . . . . .  442
ethernet cfm mep active
. . . . . . . . . . . . . . . . . 443 
ethernet cfm mep archive-hold-time  . . . . . . . . . .  444
ethernet cfm mip level . . . . . . . . . . . . . . . . . .  444
ping ethernet cfm
 . . . . . . . . . . . . . . . . . . . . 445 
traceroute ethernet cfm . . . . . . . . . . . . . . . . .  446
show ethernet cfm errors . . . . . . . . . . . . . . . .  448
show ethernet cfm domain
 . . . . . . . . . . . . . . . 448 
show ethernet cfm maintenance-points local  . . . . . 449  
show ethernet cfm maintenance-points remote  . . . . 451  
show ethernet cfm statistics
debug cfm
 . . . . . . . . . . . . . . . . . . . . . . . . 453 
 . . . . . . . . . . . . . . 452 
17 GVRP Commands . . . . . . . . . . . . . . . . . . 457 
Commands in this Chapter. . . . . . . . . . . . . . . .  457
Contents  13 
Page 14
clear gvrp statistics . . . . . . . . . . . . . . . . . . .  457
garp timer
 . . . . . . . . . . . . . . . . . . . . . . . . 458 
gvrp enable (global) . . . . . . . . . . . . . . . . . . .  459
gvrp enable (interface)  . . . . . . . . . . . . . . . . .  460
gvrp registration-forbid
 . . . . . . . . . . . . . . . . . 461 
gvrp vlan-creation-forbid . . . . . . . . . . . . . . . .  462
show gvrp configuration. . . . . . . . . . . . . . . . .  463
show gvrp error-statistics
. . . . . . . . . . . . . . . . 464 
show gvrp statistics . . . . . . . . . . . . . . . . . . .  465
18 IGMP Snooping Commands . . . . . . . . . . 467 
Commands in this Chapter. . . . . . . . . . . . . . . .  468
ip igmp snooping
show ip igmp snooping  . . . . . . . . . . . . . . . . .  470
show ip igmp snooping groups . . . . . . . . . . . . .  471
. . . . . . . . . . . . . . . . . . . . . 468 
show ip igmp snooping mrouter
. . . . . . . . . . . . . 472 
ip igmp snooping vlan immediate-leave  . . . . . . . .  473
ip igmp snooping vlan groupmembership-interval . . .  474
ip igmp snooping vlan last-member-query-interval
 . . 475 
ip igmp snooping vlan mcrtrexpiretime. . . . . . . . .  476
ip igmp snooping report-suppression. . . . . . . . . .  477
ip igmp snooping unregistered floodall
. . . . . . . . . 478 
Contents  14 
Page 15
ip igmp snooping vlan mrouter  . . . . . . . . . . . . .  478
19 IGMP Snooping Querier Commands  . . . 481 
Commands in this Chapter. . . . . . . . . . . . . . . .  481
ip igmp snooping querier . . . . . . . . . . . . . . . .  481
ip igmp snooping querier election participate . . . . . 483  
ip igmp snooping querier query-interval
 . . . . . . . . 484 
ip igmp snooping querier timer expiry  . . . . . . . . .  484
ip igmp snooping querier version . . . . . . . . . . . .  485
show ip igmp snooping querier
. . . . . . . . . . . . . 486 
20 IP Addressing Commands . . . . . . . . . . . 489 
Commands in this Chapter. . . . . . . . . . . . . . . .  489
clear host  . . . . . . . . . . . . . . . . . . . . . . . .  490
clear ip address-conflict-detect
interface out-of-band  . . . . . . . . . . . . . . . . . .  491
ip address (Out-of-Band)  . . . . . . . . . . . . . . . .  492
ip address-conflict-detect run
ip address dhcp (Interface Config)  . . . . . . . . . . .  494
ip default-gateway. . . . . . . . . . . . . . . . . . . .  495
 . . . . . . . . . . . . 490 
. . . . . . . . . . . . . . 493 
ip domain-lookup
 . . . . . . . . . . . . . . . . . . . . 496 
ip domain-name . . . . . . . . . . . . . . . . . . . . .  497
Contents  15 
Page 16
ip host  . . . . . . . . . . . . . . . . . . . . . . . . . .  498
ip name-server
. . . . . . . . . . . . . . . . . . . . . . 498 
ipv6 address (Interface Config)  . . . . . . . . . . . . .  499
ipv6 address (OOB Port) . . . . . . . . . . . . . . . . .  501
ipv6 address dhcp
 . . . . . . . . . . . . . . . . . . . . 502 
ipv6 enable (Interface Config) . . . . . . . . . . . . . .  503
ipv6 enable (OOB Config)  . . . . . . . . . . . . . . . .  504
ipv6 gateway (OOB Config)
 . . . . . . . . . . . . . . . 504 
show hosts . . . . . . . . . . . . . . . . . . . . . . . .  505
show ip address-conflict  . . . . . . . . . . . . . . . .  506
show ip helper-address
. . . . . . . . . . . . . . . . . 507 
show ipv6 dhcp interface out-of-band statistics . . . .  508
show ipv6 interface out-of-band  . . . . . . . . . . . .  509
21 IPv6 Access List Commands . . . . . . . . . 511
Commands in this Chapter. . . . . . . . . . . . . . . .  511
deny | permit (IPv6 ACL) . . . . . . . . . . . . . . . . .  512
ipv6 access-list  . . . . . . . . . . . . . . . . . . . . .  514
ipv6 access-list rename
. . . . . . . . . . . . . . . . . 515 
ipv6 traffic-filter . . . . . . . . . . . . . . . . . . . . .  516
show ipv6 access-lists  . . . . . . . . . . . . . . . . .  517
Contents  16 
Page 17
22 IPv6 MLD Snooping Commands. . . . . . . 521
Commands in this Chapter. . . . . . . . . . . . . . . .  521
ipv6 mld snooping vlan groupmembership-interval  . .  522
ipv6 mld snooping vlan immediate-leave . . . . . . . .  522
ipv6 mld snooping listener-message-suppression
. . . 523 
ipv6 mld snooping vlan last-listener-query-interval . .  524
ipv6 mld snooping vlan mcrtexpiretime. . . . . . . . .  525
ipv6 mld snooping vlan mrouter
. . . . . . . . . . . . . 526 
ipv6 mld snooping (Global)  . . . . . . . . . . . . . . .  526
show ipv6 mld snooping . . . . . . . . . . . . . . . . .  527
show ipv6 mld snooping groups
. . . . . . . . . . . . . 529 
show ipv6 mld snooping mrouter . . . . . . . . . . . .  530
23 IPv6 MLD Snooping Querier Commands  533
Commands in this Chapter. . . . . . . . . . . . . . . .  533
ipv6 mld snooping querier
ipv6 mld snooping querier (VLAN mode)  . . . . . . . .  534
ipv6 mld snooping querier address . . . . . . . . . . .  535
. . . . . . . . . . . . . . . . 534 
ipv6 mld snooping querier election participate
. . . . . 536 
ipv6 mld snooping querier query-interval. . . . . . . .  537
ipv6 mld snooping querier timer expiry . . . . . . . . .  537
Contents  17 
Page 18
show ipv6 mld snooping querier  . . . . . . . . . . . .  538
24 IP Source Guard Commands . . . . . . . . . 541
Commands in this Chapter. . . . . . . . . . . . . . . .  541
ip verify source  . . . . . . . . . . . . . . . . . . . . .  541
ip verify source port-security . . . . . . . . . . . . . .  542
ip verify binding
show ip verify interface . . . . . . . . . . . . . . . . .  543
show ip verify source interface . . . . . . . . . . . . .  544
show ip source binding
 . . . . . . . . . . . . . . . . . . . . . 543 
 . . . . . . . . . . . . . . . . . 544 
25 iSCSI Optimization Commands  . . . . . . . 547 
Commands in this Chapter. . . . . . . . . . . . . . . .  548
iscsi aging time  . . . . . . . . . . . . . . . . . . . . .  548
iscsi cos
iscsi enable  . . . . . . . . . . . . . . . . . . . . . . .  551
iscsi target port  . . . . . . . . . . . . . . . . . . . . .  552
show iscsi
show iscsi sessions . . . . . . . . . . . . . . . . . . .  555
 . . . . . . . . . . . . . . . . . . . . . . . . . 549 
 . . . . . . . . . . . . . . . . . . . . . . . . 554 
26 Link Dependency Commands  . . . . . . . . 559 
Commands in this Chapter. . . . . . . . . . . . . . . .  559
Contents  18 
Page 19
action. . . . . . . . . . . . . . . . . . . . . . . . . . .  559
link-dependency group
 . . . . . . . . . . . . . . . . . 560 
add gigabitethernet . . . . . . . . . . . . . . . . . . .  561
add tengigabitethernet  . . . . . . . . . . . . . . . . .  561
add port-channel
. . . . . . . . . . . . . . . . . . . . . 562 
depends-on. . . . . . . . . . . . . . . . . . . . . . . .  563
show link-dependency  . . . . . . . . . . . . . . . . .  564
27 LLDP Commands  . . . . . . . . . . . . . . . . . . 567 
Commands in this Chapter. . . . . . . . . . . . . . . .  568
clear lldp remote-data . . . . . . . . . . . . . . . . . .  568
clear lldp statistics  . . . . . . . . . . . . . . . . . . .  569
dcb enable
lldp med  . . . . . . . . . . . . . . . . . . . . . . . . .  570
lldp med confignotification . . . . . . . . . . . . . . .  571
. . . . . . . . . . . . . . . . . . . . . . . . 570 
lldp med faststartrepeatcount
. . . . . . . . . . . . . . 572 
lldp med transmit-tlv. . . . . . . . . . . . . . . . . . .  572
lldp notification . . . . . . . . . . . . . . . . . . . . .  573
lldp notification-interval
. . . . . . . . . . . . . . . . . 574 
lldp receive  . . . . . . . . . . . . . . . . . . . . . . .  575
lldp timers . . . . . . . . . . . . . . . . . . . . . . . .  575
lldp transmit
 . . . . . . . . . . . . . . . . . . . . . . . 577 
Contents  19 
Page 20
lldp transmit-mgmt. . . . . . . . . . . . . . . . . . . .  577
lldp transmit-tlv
 . . . . . . . . . . . . . . . . . . . . . 578 
show lldp. . . . . . . . . . . . . . . . . . . . . . . . .  579
show lldp interface  . . . . . . . . . . . . . . . . . . .  580
show lldp local-device
 . . . . . . . . . . . . . . . . . 581 
show lldp med . . . . . . . . . . . . . . . . . . . . . .  582
show lldp med interface. . . . . . . . . . . . . . . . .  583
show lldp med local-device detail
 . . . . . . . . . . . 584 
show lldp med remote-device . . . . . . . . . . . . . .  587
show lldp remote-device  . . . . . . . . . . . . . . . .  590
show lldp statistics
 . . . . . . . . . . . . . . . . . . . 591 
28 Multicast VLAN Registration Commands  595
Commands in this Chapter. . . . . . . . . . . . . . . .  596
mvr . . . . . . . . . . . . . . . . . . . . . . . . . . . .  596
mvr group
 . . . . . . . . . . . . . . . . . . . . . . . . 597 
mvr mode . . . . . . . . . . . . . . . . . . . . . . . . .  598
mvr querytime  . . . . . . . . . . . . . . . . . . . . . .  598
mvr vlan
 . . . . . . . . . . . . . . . . . . . . . . . . . 600 
mvr immediate . . . . . . . . . . . . . . . . . . . . . .  600
mvr type  . . . . . . . . . . . . . . . . . . . . . . . . .  601
mvr vlan group
. . . . . . . . . . . . . . . . . . . . . . 603 
Contents  20 
Page 21
show mvr . . . . . . . . . . . . . . . . . . . . . . . . .  604
show mvr members
 . . . . . . . . . . . . . . . . . . . 605 
show mvr interface  . . . . . . . . . . . . . . . . . . .  607
show mvr traffic . . . . . . . . . . . . . . . . . . . . .  608
29 Port Channel Commands . . . . . . . . . . . . 611 
Static LAGS  . . . . . . . . . . . . . . . . . . . . . . .  611
VLANs and LAGs . . . . . . . . . . . . . . . . . . . . .  612
LAG Thresholds  . . . . . . . . . . . . . . . . . . . . .  612
Port Channels
LAG Hashing . . . . . . . . . . . . . . . . . . . . . . .  613
Enhanced LAG Hashing  . . . . . . . . . . . . . . . . .  614
Manual Aggregation of LAGs
Manual Aggregation of LAGs . . . . . . . . . . . . . .  615
Flexible Assignment of Ports to LAGs. . . . . . . . . .  615
 . . . . . . . . . . . . . . . . . . . . . . 613 
 . . . . . . . . . . . . . . 614 
Commands in this Chapter
. . . . . . . . . . . . . . . . 615 
channel-group . . . . . . . . . . . . . . . . . . . . . .  615
interface port-channel . . . . . . . . . . . . . . . . . .  616
interface range port-channel
 . . . . . . . . . . . . . . 617 
hashing-mode . . . . . . . . . . . . . . . . . . . . . .  618
lacp port-priority. . . . . . . . . . . . . . . . . . . . .  619
lacp system-priority
. . . . . . . . . . . . . . . . . . . 620 
Contents  21 
Page 22
lacp timeout  . . . . . . . . . . . . . . . . . . . . . . . 620  
port-channel local-preference
 . . . . . . . . . . . . . 621 
port-channel min-links  . . . . . . . . . . . . . . . . .  622
show interfaces port-channel . . . . . . . . . . . . . .  623
show lacp
 . . . . . . . . . . . . . . . . . . . . . . . . 624 
show statistics port-channel  . . . . . . . . . . . . . .  626
30 Port Monitor Commands . . . . . . . . . . . . 631
Commands in this Chapter. . . . . . . . . . . . . . . .  631
monitor session
 . . . . . . . . . . . . . . . . . . . . . 632 
show monitor session . . . . . . . . . . . . . . . . . .  633
31 QoS Commands . . . . . . . . . . . . . . . . . . . 635
Access Control Lists . . . . . . . . . . . . . . . . . . .  635
Layer 2 ACLs
. . . . . . . . . . . . . . . . . . . . . . . 636 
Layer 3/4 IPv4 ACLs  . . . . . . . . . . . . . . . . . . .  636
Class of Service (CoS) . . . . . . . . . . . . . . . . . .  636
Queue Mapping
 . . . . . . . . . . . . . . . . . . . . . 637 
Commands in this Chapter. . . . . . . . . . . . . . . .  638
assign-queue. . . . . . . . . . . . . . . . . . . . . . .  639
class
 . . . . . . . . . . . . . . . . . . . . . . . . . . . 639 
class-map  . . . . . . . . . . . . . . . . . . . . . . . .  640
Contents  22 
Page 23
class-map rename . . . . . . . . . . . . . . . . . . . .  641
classofservice dot1p-mapping
 . . . . . . . . . . . . . 642 
classofservice ip-dscp-mapping  . . . . . . . . . . . .  643
classofservice trust . . . . . . . . . . . . . . . . . . .  646
conform-color
 . . . . . . . . . . . . . . . . . . . . . . 647 
cos-queue min-bandwidth  . . . . . . . . . . . . . . .  649
cos-queue random-detect . . . . . . . . . . . . . . . .  650
cos-queue strict
 . . . . . . . . . . . . . . . . . . . . . 652 
diffserv . . . . . . . . . . . . . . . . . . . . . . . . . .  653
drop. . . . . . . . . . . . . . . . . . . . . . . . . . . .  654
mark cos
. . . . . . . . . . . . . . . . . . . . . . . . . 654 
mark ip-dscp . . . . . . . . . . . . . . . . . . . . . . .  655
mark ip-precedence . . . . . . . . . . . . . . . . . . .  656
match class-map
. . . . . . . . . . . . . . . . . . . . . 657 
match cos  . . . . . . . . . . . . . . . . . . . . . . . .  658
match destination-address mac. . . . . . . . . . . . .  659
match dstip
match dstip6
. . . . . . . . . . . . . . . . . . . . . . . . 660 
. . . . . . . . . . . . . . . . . . . . . . . 660 
match dstl4port  . . . . . . . . . . . . . . . . . . . . .  661
match ethertype
 . . . . . . . . . . . . . . . . . . . . . 662 
match ip6flowlbl. . . . . . . . . . . . . . . . . . . . .  663
Contents  23 
Page 24
match ip dscp  . . . . . . . . . . . . . . . . . . . . . .  663
match ip precedence
 . . . . . . . . . . . . . . . . . . 664 
match ip tos  . . . . . . . . . . . . . . . . . . . . . . .  665
match protocol . . . . . . . . . . . . . . . . . . . . . .  666
match source-address mac
 . . . . . . . . . . . . . . . 667 
match srcip. . . . . . . . . . . . . . . . . . . . . . . .  668
match srcip6 . . . . . . . . . . . . . . . . . . . . . . .  668
match srcl4port
 . . . . . . . . . . . . . . . . . . . . . 669 
match vlan . . . . . . . . . . . . . . . . . . . . . . . .  670
mirror. . . . . . . . . . . . . . . . . . . . . . . . . . .  671
police-simple
 . . . . . . . . . . . . . . . . . . . . . . 671 
police-two-rate  . . . . . . . . . . . . . . . . . . . . .  673
policy-map . . . . . . . . . . . . . . . . . . . . . . . .  674
random-detect queue-parms
 . . . . . . . . . . . . . . 675 
random-detect exponential-weighting-constant . . . .  678
redirect. . . . . . . . . . . . . . . . . . . . . . . . . .  678
service-policy
show class-map
 . . . . . . . . . . . . . . . . . . . . . . 679 
. . . . . . . . . . . . . . . . . . . . . 680 
show classofservice dot1p-mapping . . . . . . . . . .  682
show classofservice ip-dscp-mapping
. . . . . . . . . 683 
show classofservice trust . . . . . . . . . . . . . . . .  686
Contents  24 
Page 25
show diffserv. . . . . . . . . . . . . . . . . . . . . . .  687
show diffserv service interface
. . . . . . . . . . . . . 688 
show diffserv service interface port-channel  . . . . . 689  
show diffserv service brief  . . . . . . . . . . . . . . .  690
show interfaces cos-queue
. . . . . . . . . . . . . . . 691 
show interfaces random-detect . . . . . . . . . . . . .  693
show policy-map  . . . . . . . . . . . . . . . . . . . .  694
show policy-map interface
 . . . . . . . . . . . . . . . 695 
show service-policy . . . . . . . . . . . . . . . . . . .  696
traffic-shape . . . . . . . . . . . . . . . . . . . . . . .  697
32 RADIUS Commands . . . . . . . . . . . . . . . . 699
Commands in this Chapter. . . . . . . . . . . . . . . .  702
aaa accounting dot1x default start-stop  . . . . . . . .  703
accounting . . . . . . . . . . . . . . . . . . . . . . . .  705
acct-port
. . . . . . . . . . . . . . . . . . . . . . . . . 706 
auth-port . . . . . . . . . . . . . . . . . . . . . . . . .  707
deadtime . . . . . . . . . . . . . . . . . . . . . . . . .  707
debug aaa accounting
. . . . . . . . . . . . . . . . . . 708 
key . . . . . . . . . . . . . . . . . . . . . . . . . . . .  709
msgauth  . . . . . . . . . . . . . . . . . . . . . . . . .  710
name (RADIUS server)
. . . . . . . . . . . . . . . . . . 710 
Contents  25 
Page 26
primary . . . . . . . . . . . . . . . . . . . . . . . . . .  712
priority
 . . . . . . . . . . . . . . . . . . . . . . . . . . 712 
radius-server attribute 4 . . . . . . . . . . . . . . . . .  713
radius-server deadtime  . . . . . . . . . . . . . . . . .  714
radius-server host
. . . . . . . . . . . . . . . . . . . . 715 
radius-server key  . . . . . . . . . . . . . . . . . . . .  716
radius-server retransmit. . . . . . . . . . . . . . . . .  717
radius-server source-ip
 . . . . . . . . . . . . . . . . . 718 
radius-server timeout  . . . . . . . . . . . . . . . . . .  718
retransmit  . . . . . . . . . . . . . . . . . . . . . . . .  719
show aaa servers
 . . . . . . . . . . . . . . . . . . . . 720 
show accounting methods  . . . . . . . . . . . . . . .  722
show radius statistics . . . . . . . . . . . . . . . . . .  723
source-ip
. . . . . . . . . . . . . . . . . . . . . . . . . 727 
timeout . . . . . . . . . . . . . . . . . . . . . . . . . .  728
usage. . . . . . . . . . . . . . . . . . . . . . . . . . .  728
33 Spanning Tree Commands . . . . . . . . . . . 731
Commands in this Chapter. . . . . . . . . . . . . . . .  732
clear spanning-tree detected-protocols  . . . . . . . .  733
exit (mst) . . . . . . . . . . . . . . . . . . . . . . . . .  734
instance (mst)
 . . . . . . . . . . . . . . . . . . . . . . 734 
Contents  26 
Page 27
name (mst) . . . . . . . . . . . . . . . . . . . . . . . .  736
revision (mst)
. . . . . . . . . . . . . . . . . . . . . . . 737 
show spanning-tree . . . . . . . . . . . . . . . . . . .  737
show spanning-tree summary . . . . . . . . . . . . . .  741
spanning-tree
 . . . . . . . . . . . . . . . . . . . . . . 743 
spanning-tree auto-portfast . . . . . . . . . . . . . . .  743
spanning-tree bpdu flooding  . . . . . . . . . . . . . .  744
spanning-tree bpdu-protection
 . . . . . . . . . . . . . 745 
spanning-tree cost. . . . . . . . . . . . . . . . . . . .  746
spanning-tree disable . . . . . . . . . . . . . . . . . .  747
spanning-tree forward-time
. . . . . . . . . . . . . . . 747 
spanning-tree guard . . . . . . . . . . . . . . . . . . .  748
spanning-tree loopguard  . . . . . . . . . . . . . . . .  749
spanning-tree max-age
 . . . . . . . . . . . . . . . . . 750 
spanning-tree max-hops. . . . . . . . . . . . . . . . .  751
spanning-tree mode . . . . . . . . . . . . . . . . . . .  751
spanning-tree mst configuration
spanning-tree mst cost
 . . . . . . . . . . . . . . . . . 753 
 . . . . . . . . . . . . 752 
spanning-tree mst port-priority . . . . . . . . . . . . .  754
spanning-tree mst priority
. . . . . . . . . . . . . . . . 755 
spanning-tree portfast . . . . . . . . . . . . . . . . . .  756
Contents  27 
Page 28
spanning-tree portfast bpdufilter default . . . . . . . .  757
spanning-tree portfast default
. . . . . . . . . . . . . . 758 
spanning-tree port-priority  . . . . . . . . . . . . . . .  759
spanning-tree priority . . . . . . . . . . . . . . . . . .  759
spanning-tree tcnguard
 . . . . . . . . . . . . . . . . . 760 
spanning-tree transmit hold-count  . . . . . . . . . . .  761
34 TACACS+ Commands . . . . . . . . . . . . . . . 763 
Commands in this Chapter. . . . . . . . . . . . . . . .  763
key
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764 
port . . . . . . . . . . . . . . . . . . . . . . . . . . . .  764
priority . . . . . . . . . . . . . . . . . . . . . . . . . .  765
show tacacs
tacacs-server host . . . . . . . . . . . . . . . . . . . .  767
tacacs-server key . . . . . . . . . . . . . . . . . . . .  768
. . . . . . . . . . . . . . . . . . . . . . . 766 
tacacs-server timeout
. . . . . . . . . . . . . . . . . . 769 
timeout . . . . . . . . . . . . . . . . . . . . . . . . . .  769
35 UDLD Commands . . . . . . . . . . . . . . . . . . 771 
Detecting Unidirectional Links on a Device Port . . . .  771
Processing UDLD Traffic from Neighbors
UDLD in Normal-mode. . . . . . . . . . . . . . . . . .  772
. . . . . . . . 772 
Contents  28 
Page 29
UDLD in Aggressive-mode. . . . . . . . . . . . . . . .  772
Commands in this Chapter
. . . . . . . . . . . . . . . . 773 
udld enable (Global Config) . . . . . . . . . . . . . . .  773
udld reset  . . . . . . . . . . . . . . . . . . . . . . . .  774
udld message time
. . . . . . . . . . . . . . . . . . . . 775 
udld timeout interval. . . . . . . . . . . . . . . . . . .  775
udld enable (Interface Config). . . . . . . . . . . . . .  776
udld port
 . . . . . . . . . . . . . . . . . . . . . . . . . 777 
show udld  . . . . . . . . . . . . . . . . . . . . . . . .  778
debug udld . . . . . . . . . . . . . . . . . . . . . . . .  779
36 VLAN Commands . . . . . . . . . . . . . . . . . . 781 
Double VLAN Mode . . . . . . . . . . . . . . . . . . .  781
Independent VLAN Learning. . . . . . . . . . . . . . .  782
Protocol Based VLANs. . . . . . . . . . . . . . . . . .  782
IP Subnet Based VLANs
. . . . . . . . . . . . . . . . . 783 
MAC-Based VLANs  . . . . . . . . . . . . . . . . . . .  783
Private VLAN Commands  . . . . . . . . . . . . . . . .  783
Commands in this Chapter
. . . . . . . . . . . . . . . . 786 
dvlan-tunnel ethertype. . . . . . . . . . . . . . . . . .  787
interface vlan  . . . . . . . . . . . . . . . . . . . . . .  788
interface range vlan
. . . . . . . . . . . . . . . . . . . 789 
Contents  29 
Page 30
mode dvlan-tunnel . . . . . . . . . . . . . . . . . . . .  790
name (VLAN Configuration)
 . . . . . . . . . . . . . . . 791 
protocol group . . . . . . . . . . . . . . . . . . . . . .  792
protocol vlan group  . . . . . . . . . . . . . . . . . . .  793
protocol vlan group all
. . . . . . . . . . . . . . . . . . 794 
show dvlan-tunnel . . . . . . . . . . . . . . . . . . . .  795
show dvlan-tunnel interface  . . . . . . . . . . . . . .  796
show interfaces switchport
. . . . . . . . . . . . . . . 797 
show port protocol. . . . . . . . . . . . . . . . . . . .  801
show vlan  . . . . . . . . . . . . . . . . . . . . . . . .  802
show vlan association mac
. . . . . . . . . . . . . . . 803 
show vlan association subnet . . . . . . . . . . . . . .  804
switchport access vlan . . . . . . . . . . . . . . . . .  805
switchport general forbidden vlan
 . . . . . . . . . . . 806 
switchport general acceptable-frame-type tagged-only  807  
switchport general allowed vlan . . . . . . . . . . . .  808
switchport general ingress-filtering disable
switchport general pvid
. . . . . . . . . . . . . . . . . 810 
. . . . . . 809 
switchport mode . . . . . . . . . . . . . . . . . . . . .  811
switchport trunk
. . . . . . . . . . . . . . . . . . . . . 812 
vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . .  814
Contents  30 
Page 31
vlan (Global Config) . . . . . . . . . . . . . . . . . . .  815
vlan association mac
 . . . . . . . . . . . . . . . . . . 816 
vlan association subnet . . . . . . . . . . . . . . . . .  817
vlan database  . . . . . . . . . . . . . . . . . . . . . .  817
vlan makestatic
 . . . . . . . . . . . . . . . . . . . . . 818 
vlan protocol group  . . . . . . . . . . . . . . . . . . .  819
vlan protocol group add protocol . . . . . . . . . . . .  820
vlan protocol group name
. . . . . . . . . . . . . . . . 821 
vlan protocol group remove . . . . . . . . . . . . . . .  821
switchport private-vlan . . . . . . . . . . . . . . . . . 822  
switchport mode private-vlan
. . . . . . . . . . . . . . 823 
private-vlan  . . . . . . . . . . . . . . . . . . . . . . .  824
show vlan private-vlan  . . . . . . . . . . . . . . . . .  826
37 Voice VLAN Commands . . . . . . . . . . . . . 829 
Commands in this Chapter. . . . . . . . . . . . . . . .  830
voice vlan  . . . . . . . . . . . . . . . . . . . . . . . .  830
voice vlan (Interface)  . . . . . . . . . . . . . . . . . .  830
voice vlan data priority
 . . . . . . . . . . . . . . . . . 832 
show voice vlan . . . . . . . . . . . . . . . . . . . . .  832
Contents  31 
Page 32
38 802.1x Commands . . . . . . . . . . . . . . . . . 835
Local 802.1X Authentication Server . . . . . . . . . . .  835
MAC Authentication Bypass. . . . . . . . . . . . . . .  836
Guest VLAN  . . . . . . . . . . . . . . . . . . . . . . .  837
802.1x Monitor Mode
 . . . . . . . . . . . . . . . . . . 837 
RADIUS-based Dynamic VLAN Assignment  . . . . . .  838
Commands in this Chapter. . . . . . . . . . . . . . . .  838
dot1x dynamic-vlan enable
 . . . . . . . . . . . . . . . 839 
dot1x initialize . . . . . . . . . . . . . . . . . . . . . .  840
dot1x mac-auth-bypass . . . . . . . . . . . . . . . . .  840
dot1x max-req
 . . . . . . . . . . . . . . . . . . . . . . 841 
dot1x max-users . . . . . . . . . . . . . . . . . . . . .  842
dot1x port-control . . . . . . . . . . . . . . . . . . . .  843
dot1x re-authenticate
 . . . . . . . . . . . . . . . . . . 844 
dot1x reauthentication. . . . . . . . . . . . . . . . . .  845
dot1x system-auth-control. . . . . . . . . . . . . . . .  845
dot1x system-auth-control monitor
dot1x timeout guest-vlan-period
 . . . . . . . . . . . 846 
 . . . . . . . . . . . . 847 
dot1x timeout quiet-period  . . . . . . . . . . . . . . .  848
dot1x timeout re-authperiod
. . . . . . . . . . . . . . . 849 
dot1x timeout server-timeout  . . . . . . . . . . . . . .  849
Contents  32 
Page 33
dot1x timeout supp-timeout . . . . . . . . . . . . . . .  850
dot1x timeout tx-period
 . . . . . . . . . . . . . . . . . 851 
show dot1x . . . . . . . . . . . . . . . . . . . . . . . .  852
show dot1x authentication-history . . . . . . . . . . .  853
show dot1x clients
. . . . . . . . . . . . . . . . . . . . 855 
show dot1x interface  . . . . . . . . . . . . . . . . . .  858
show dot1x interface statistics . . . . . . . . . . . . .  859
show dot1x users
 . . . . . . . . . . . . . . . . . . . . 861 
clear dot1x authentication–history . . . . . . . . . . .  862
dot1x guest-vlan . . . . . . . . . . . . . . . . . . . . .  863
dot1x unauth-vlan
 . . . . . . . . . . . . . . . . . . . . 864 
show dot1x advanced . . . . . . . . . . . . . . . . . .  864
39 Data Center Technology Commands . . . 867
40 Data Center Bridging Commands  . . . . . 869 
Data Center Bridging Exchange Protocol. . . . . . . .  869
Interoperability with IEEE DCBX
Port Roles  . . . . . . . . . . . . . . . . . . . . . . . .  874
Commands in this Chapter. . . . . . . . . . . . . . . .  877
Data Center Bridging Capability Exchange Commands
datacenter-bridging . . . . . . . . . . . . . . . . . . .  878
 . . . . . . . . . . . . 873 
 878 
Contents  33 
Page 34
lldp dcbx version  . . . . . . . . . . . . . . . . . . . .  879
lldp tlv-select dcbxp (dcb enable)
 . . . . . . . . . . . 880 
lldp dcbx port-role. . . . . . . . . . . . . . . . . . . .  881
show lldp tlv-select . . . . . . . . . . . . . . . . . . .  883
show lldp dcbx
. . . . . . . . . . . . . . . . . . . . . . 884 
Enhanced Transmission Selection (ETS) Commands . .  889
classofservice traffic-class-group  . . . . . . . . . . .  889
traffic-class-group max-bandwidth
. . . . . . . . . . . 890 
traffic-class-group min-bandwidth . . . . . . . . . . .  892
traffic-class-group strict  . . . . . . . . . . . . . . . .  893
traffic-class-group weight
 . . . . . . . . . . . . . . . 895 
show classofservice traffic-class-group . . . . . . . .  896
show interfaces traffic-class-group  . . . . . . . . . .  897
41 FIP Snooping Commands . . . . . . . . . . . . 901 
Setting Up FIP Snooping. . . . . . . . . . . . . . . . .  901
Commands in this Chapter. . . . . . . . . . . . . . . .  902
feature fip-snooping . . . . . . . . . . . . . . . . . . .  903
fip-snooping enable
. . . . . . . . . . . . . . . . . . . 904 
fip-snooping fc-map . . . . . . . . . . . . . . . . . . .  905
fip-snooping port-mode . . . . . . . . . . . . . . . . .  906
show fip-snooping
. . . . . . . . . . . . . . . . . . . . 907 
Contents  34 
Page 35
show fip-snooping enode . . . . . . . . . . . . . . . .  909
show fip-snooping fcf
. . . . . . . . . . . . . . . . . . 911 
show fip-snooping sessions . . . . . . . . . . . . . . .  914
show fip-snooping statistics  . . . . . . . . . . . . . .  920
show fip-snooping vlan
 . . . . . . . . . . . . . . . . . 927 
clear fip-snooping statistics. . . . . . . . . . . . . . .  928
42 Priority Flow Control Commands . . . . . . 931
Commands in this Chapter. . . . . . . . . . . . . . . .  932
priority-flow-control mode
 . . . . . . . . . . . . . . . 932 
priority-flow-control priority  . . . . . . . . . . . . . .  934
clear priority-flow-control statistics . . . . . . . . . .  935
show interfaces priority-flow-control
 . . . . . . . . . 935 
43 Layer 3 Commands  . . . . . . . . . . . . . . . . 939 
44 ARP Commands . . . . . . . . . . . . . . . . . . . 941
ARP Aging . . . . . . . . . . . . . . . . . . . . . . . .  942
Commands in this Chapter. . . . . . . . . . . . . . . .  942
arp
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 942 
arp cachesize  . . . . . . . . . . . . . . . . . . . . . .  943
arp dynamicrenew . . . . . . . . . . . . . . . . . . . .  944
Contents  35 
Page 36
arp purge . . . . . . . . . . . . . . . . . . . . . . . . .  945
arp resptime
 . . . . . . . . . . . . . . . . . . . . . . . 946 
arp retries  . . . . . . . . . . . . . . . . . . . . . . . .  947
arp timeout . . . . . . . . . . . . . . . . . . . . . . . .  947
clear arp-cache
 . . . . . . . . . . . . . . . . . . . . . 948 
clear arp-cache management . . . . . . . . . . . . . .  949
ip local-proxy-arp . . . . . . . . . . . . . . . . . . . .  950
ip proxy-arp
 . . . . . . . . . . . . . . . . . . . . . . . 950 
show arp . . . . . . . . . . . . . . . . . . . . . . . . .  951
45 DHCP Server and Relay Agent Commands  953
Commands in this Chapter. . . . . . . . . . . . . . . .  954
ip dhcp pool
bootfile . . . . . . . . . . . . . . . . . . . . . . . . . .  957
clear ip dhcp binding  . . . . . . . . . . . . . . . . . .  958
 . . . . . . . . . . . . . . . . . . . . . . . 954 
clear ip dhcp conflict
 . . . . . . . . . . . . . . . . . . 958 
client-identifier  . . . . . . . . . . . . . . . . . . . . .  959
client-name  . . . . . . . . . . . . . . . . . . . . . . .  960
default-router
 . . . . . . . . . . . . . . . . . . . . . . 961 
dns-server (IP DHCP Pool Config) . . . . . . . . . . . .  962
domain-name (IP DHCP Pool Config) . . . . . . . . . .  963
hardware-address
. . . . . . . . . . . . . . . . . . . . 963 
Contents  36 
Page 37
host. . . . . . . . . . . . . . . . . . . . . . . . . . . .  964
ip dhcp bootp automatic
. . . . . . . . . . . . . . . . . 965 
ip dhcp conflict logging . . . . . . . . . . . . . . . . .  966
ip dhcp excluded-address. . . . . . . . . . . . . . . .  967
ip dhcp ping packets
. . . . . . . . . . . . . . . . . . . 968 
lease . . . . . . . . . . . . . . . . . . . . . . . . . . .  969
netbios-name-server. . . . . . . . . . . . . . . . . . .  970
netbios-node-type
. . . . . . . . . . . . . . . . . . . . 971 
network  . . . . . . . . . . . . . . . . . . . . . . . . .  972
next-server. . . . . . . . . . . . . . . . . . . . . . . .  972
option
. . . . . . . . . . . . . . . . . . . . . . . . . . . 973 
service dhcp . . . . . . . . . . . . . . . . . . . . . . .  977
sntp . . . . . . . . . . . . . . . . . . . . . . . . . . . .  978
show ip dhcp binding
 . . . . . . . . . . . . . . . . . . 979 
show ip dhcp conflict . . . . . . . . . . . . . . . . . .  980
show ip dhcp global configuration . . . . . . . . . . .  980
show ip dhcp pool
show ip dhcp server statistics
. . . . . . . . . . . . . . . . . . . . 981 
 . . . . . . . . . . . . . 982 
46 DHCPv6 Commands . . . . . . . . . . . . . . . . 985
clear ipv6 dhcp. . . . . . . . . . . . . . . . . . . . . .  985
dns-server (IPv6 DHCP Pool Config)
. . . . . . . . . . . 986 
Contents  37 
Page 38
domain-name (IPv6 DHCP Pool Config) . . . . . . . . .  986
ipv6 dhcp pool
. . . . . . . . . . . . . . . . . . . . . . 987 
ipv6 dhcp relay . . . . . . . . . . . . . . . . . . . . . .  988
ipv6 dhcp server . . . . . . . . . . . . . . . . . . . . .  989
prefix-delegation
 . . . . . . . . . . . . . . . . . . . . 990 
service dhcpv6. . . . . . . . . . . . . . . . . . . . . .  992
show ipv6 dhcp  . . . . . . . . . . . . . . . . . . . . .  993
show ipv6 dhcp binding
. . . . . . . . . . . . . . . . . 993 
show ipv6 dhcp interface (User EXEC)  . . . . . . . . .  994
show ipv6 dhcp interface (Privileged EXEC)  . . . . . .  996
show ipv6 dhcp pool
. . . . . . . . . . . . . . . . . .  1000 
show ipv6 dhcp statistics . . . . . . . . . . . . . . .   1000
47 DVMRP Commands . . . . . . . . . . . . . . . 1003
Commands in this Chapter. . . . . . . . . . . . . . .   1003
ip dvmrp
 . . . . . . . . . . . . . . . . . . . . . . . .  1003 
ip dvmrp metric  . . . . . . . . . . . . . . . . . . . .   1004
show ip dvmrp . . . . . . . . . . . . . . . . . . . . .   1005
show ip dvmrp interface
. . . . . . . . . . . . . . . .  1006 
show ip dvmrp neighbor . . . . . . . . . . . . . . . .   1006
show ip dvmrp nexthop  . . . . . . . . . . . . . . . .   1007
show ip dvmrp prune
 . . . . . . . . . . . . . . . . .  1008 
Contents  38 
Page 39
show ip dvmrp route . . . . . . . . . . . . . . . . . .   1009
48 GMRP Commands . . . . . . . . . . . . . . . . 1011
Commands in this Chapter. . . . . . . . . . . . . . .   1012
gmrp enable  . . . . . . . . . . . . . . . . . . . . . .   1012
show gmrp configuration  . . . . . . . . . . . . . . .   1013
49 IGMP Commands . . . . . . . . . . . . . . . . . 1015
Commands in this Chapter. . . . . . . . . . . . . . .   1016
ip igmp . . . . . . . . . . . . . . . . . . . . . . . . .   1016
ip igmp last-member-query-count. . . . . . . . . . .   1017
ip igmp last-member-query-interval
 . . . . . . . . .  1018 
ip igmp query-interval . . . . . . . . . . . . . . . . .   1019
ip igmp query-max-response-time  . . . . . . . . . .   1020
ip igmp robustness
. . . . . . . . . . . . . . . . . . .  1020 
ip igmp startup-query-count. . . . . . . . . . . . . .   1021
ip igmp startup-query-interval. . . . . . . . . . . . .   1022
ip igmp version
. . . . . . . . . . . . . . . . . . . . .  1023 
show ip igmp. . . . . . . . . . . . . . . . . . . . . .   1023
show ip igmp groups. . . . . . . . . . . . . . . . . .   1024
show ip igmp interface
 . . . . . . . . . . . . . . . .  1025 
show ip igmp membership  . . . . . . . . . . . . . .   1027
Contents  39 
Page 40
show ip igmp interface stats  . . . . . . . . . . . . .   1027
ip igmp router-alert-check
 . . . . . . . . . . . . . .  1028 
50 IGMP Proxy Commands . . . . . . . . . . . . 1031
Commands in this Chapter. . . . . . . . . . . . . . .   1031
ip igmp-proxy  . . . . . . . . . . . . . . . . . . . . .   1031
ip igmp-proxy reset-status
 . . . . . . . . . . . . . .  1032 
ip igmp-proxy unsolicit-rprt-interval . . . . . . . . .   1033
show ip igmp-proxy . . . . . . . . . . . . . . . . . .   1034
show ip igmp-proxy interface
. . . . . . . . . . . . .  1035 
show ip igmp-proxy groups . . . . . . . . . . . . . .   1036
show ip igmp-proxy groups detail  . . . . . . . . . .   1036
51 IP Helper/DHCP Relay Commands. . . . 1039 
Commands in this Chapter. . . . . . . . . . . . . . .   1041
bootpdhcprelay maxhopcount . . . . . . . . . . . . .   1041
bootpdhcprelay minwaittime . . . . . . . . . . . . .   1042
clear ip helper statistics
. . . . . . . . . . . . . . . .  1043 
ip dhcp relay information check  . . . . . . . . . . .   1043
ip dhcp relay information check-reply  . . . . . . . .   1044
ip dhcp relay information option
 . . . . . . . . . . .  1045 
ip dhcp relay information option-insert. . . . . . . .   1046
Contents  40 
Page 41
ip helper-address (global configuration) . . . . . . .   1047
ip helper-address (interface configuration)
. . . . . .  1049 
ip helper enable . . . . . . . . . . . . . . . . . . . .   1051
show ip helper-address . . . . . . . . . . . . . . . .   1051
show ip dhcp relay
. . . . . . . . . . . . . . . . . . .  1053 
show ip helper statistics  . . . . . . . . . . . . . . .   1054
52 IP Routing Commands . . . . . . . . . . . . . 1057
Static Routes/ECMP Static Routes  . . . . . . . . . .   1057
Static Reject Routes
Default Routes . . . . . . . . . . . . . . . . . . . . .   1058
Commands in this Chapter. . . . . . . . . . . . . . .   1058
encapsulation
ip address  . . . . . . . . . . . . . . . . . . . . . . .   1059
ip mtu. . . . . . . . . . . . . . . . . . . . . . . . . .   1061
. . . . . . . . . . . . . . . . . .  1058 
 . . . . . . . . . . . . . . . . . . . . .  1059 
ip netdirbcast
 . . . . . . . . . . . . . . . . . . . . .  1062 
ip route . . . . . . . . . . . . . . . . . . . . . . . . .   1063
ip route default. . . . . . . . . . . . . . . . . . . . .   1064
ip route distance
. . . . . . . . . . . . . . . . . . . .  1065 
ip routing . . . . . . . . . . . . . . . . . . . . . . . .   1066
show ip brief . . . . . . . . . . . . . . . . . . . . . .   1067
show ip interface
 . . . . . . . . . . . . . . . . . . .  1067 
Contents  41 
Page 42
show ip protocols . . . . . . . . . . . . . . . . . . .   1070
show ip route
 . . . . . . . . . . . . . . . . . . . . .  1074 
show ip route configured  . . . . . . . . . . . . . . .   1076
show ip route connected  . . . . . . . . . . . . . . .   1077
show ip route preferences
 . . . . . . . . . . . . . .  1078 
show ip route summary  . . . . . . . . . . . . . . . .   1079
show ip traffic . . . . . . . . . . . . . . . . . . . . .   1080
show ip vlan
. . . . . . . . . . . . . . . . . . . . . .  1083 
show routing heap summary  . . . . . . . . . . . . .   1083
53 IPv6 Routing Commands . . . . . . . . . . . 1087
IPv6 Limitations & Restrictions . . . . . . . . . . . .   1087
Commands in this Chapter
clear ipv6 neighbors . . . . . . . . . . . . . . . . . .   1088
clear ipv6 statistics  . . . . . . . . . . . . . . . . . .   1089
. . . . . . . . . . . . . . .  1087 
ipv6 address
 . . . . . . . . . . . . . . . . . . . . . .  1090 
ipv6 enable . . . . . . . . . . . . . . . . . . . . . . .   1091
ipv6 hop-limit  . . . . . . . . . . . . . . . . . . . . .   1092
ipv6 host
 . . . . . . . . . . . . . . . . . . . . . . . .  1092 
ipv6 mld last-member-query-count . . . . . . . . . .   1093
ipv6 mld last-member-query-interval . . . . . . . . .   1094
ipv6 mld-proxy
. . . . . . . . . . . . . . . . . . . . .  1094 
Contents  42 
Page 43
ipv6 mld-proxy reset-status . . . . . . . . . . . . . .   1095
ipv6 mld-proxy unsolicit-rprt-interval
. . . . . . . . .  1096 
ipv6 mld query-interval  . . . . . . . . . . . . . . . .   1096
ipv6 mld query-max-response-time . . . . . . . . . .   1097
ipv6 mld router
. . . . . . . . . . . . . . . . . . . . .  1098 
ipv6 mtu  . . . . . . . . . . . . . . . . . . . . . . . .   1099
ipv6 nd dad attempts. . . . . . . . . . . . . . . . . .   1100
ipv6 nd managed-config-flag
 . . . . . . . . . . . . .  1101 
ipv6 nd ns-interval . . . . . . . . . . . . . . . . . . .   1101
ipv6 nd other-config-flag  . . . . . . . . . . . . . . .   1102
ipv6 nd prefix
. . . . . . . . . . . . . . . . . . . . . .  1103 
ipv6 nd ra-interval . . . . . . . . . . . . . . . . . . .   1104
ipv6 nd ra-lifetime . . . . . . . . . . . . . . . . . . .   1105
ipv6 nd reachable-time
 . . . . . . . . . . . . . . . .  1106 
ipv6 nd suppress-ra  . . . . . . . . . . . . . . . . . .   1107
ipv6 route. . . . . . . . . . . . . . . . . . . . . . . .   1108
ipv6 route distance
ipv6 unicast-routing
. . . . . . . . . . . . . . . . . . .  1109 
. . . . . . . . . . . . . . . . . .  1110 
ping ipv6 . . . . . . . . . . . . . . . . . . . . . . . .   1111
ping ipv6 interface
. . . . . . . . . . . . . . . . . . .  1112 
show ipv6 brief. . . . . . . . . . . . . . . . . . . . .   1113
Contents  43 
Page 44
show ipv6 interface . . . . . . . . . . . . . . . . . .   1114
show ipv6 interface management statistics
 . . . . .  1116 
show ipv6 mld groups . . . . . . . . . . . . . . . . .   1117
show ipv6 mld interface . . . . . . . . . . . . . . . .   1120
show ipv6 mld-proxy
. . . . . . . . . . . . . . . . . .  1123 
show ipv6 mld-proxy groups  . . . . . . . . . . . . .   1124
show ipv6 mld-proxy groups detail . . . . . . . . . .   1126
show ipv6 mld-proxy interface
 . . . . . . . . . . . .  1127 
show ipv6 mld traffic  . . . . . . . . . . . . . . . . .   1129
show ipv6 neighbors. . . . . . . . . . . . . . . . . .   1130
show ipv6 route
 . . . . . . . . . . . . . . . . . . . .  1131 
show ipv6 route preferences  . . . . . . . . . . . . .   1133
show ipv6 route summary . . . . . . . . . . . . . . .   1134
show ipv6 traffic
. . . . . . . . . . . . . . . . . . . .  1135 
show ipv6 vlan . . . . . . . . . . . . . . . . . . . . .   1137
traceroute ipv6. . . . . . . . . . . . . . . . . . . . .   1138
54 Loopback Interface Commands. . . . . . 1141
Commands in this Chapter. . . . . . . . . . . . . . .   1141
interface loopback. . . . . . . . . . . . . . . . . . .   1141
show interfaces loopback . . . . . . . . . . . . . . .   1142
Contents  44 
Page 45
55 Multicast Commands . . . . . . . . . . . . . . 1145
Commands in this Chapter. . . . . . . . . . . . . . .   1146
ip mcast boundary . . . . . . . . . . . . . . . . . . .   1146
ip mroute . . . . . . . . . . . . . . . . . . . . . . . .   1147
ip multicast
. . . . . . . . . . . . . . . . . . . . . . .  1148 
ip multicast ttl-threshold  . . . . . . . . . . . . . . .   1149
ip pim. . . . . . . . . . . . . . . . . . . . . . . . . .   1150
ip pim bsr-border
. . . . . . . . . . . . . . . . . . . .  1151 
ip pim bsr-candidate . . . . . . . . . . . . . . . . . .   1152
ip pim dense . . . . . . . . . . . . . . . . . . . . . .   1153
ip pim dr-priority
. . . . . . . . . . . . . . . . . . . .  1153 
ip pim hello-interval . . . . . . . . . . . . . . . . . .   1154
ip pim join-prune-interval . . . . . . . . . . . . . . .   1155
ip pim rp-address
 . . . . . . . . . . . . . . . . . . .  1156 
ip pim rp-candidate  . . . . . . . . . . . . . . . . . .   1157
ip pim sparse . . . . . . . . . . . . . . . . . . . . . .   1158
ip pim ssm
show ip multicast
 . . . . . . . . . . . . . . . . . . . . . . .  1159 
 . . . . . . . . . . . . . . . . . . .  1159 
show ip mcast boundary. . . . . . . . . . . . . . . .   1160
show ip multicast interface
. . . . . . . . . . . . . .  1161 
show ip mcast mroute . . . . . . . . . . . . . . . . .   1162
Contents  45 
Page 46
show ip mcast mroute group  . . . . . . . . . . . . .   1163
show ip mcast mroute source
. . . . . . . . . . . . .  1164 
show ip mcast mroute static  . . . . . . . . . . . . .   1164
show ip pim  . . . . . . . . . . . . . . . . . . . . . .   1165
show ip pim bsr-router
. . . . . . . . . . . . . . . . .  1166 
show ip pim interface . . . . . . . . . . . . . . . . .   1167
show ip pim neighbor . . . . . . . . . . . . . . . . .   1169
show ip pim rp hash
. . . . . . . . . . . . . . . . . .  1171 
show ip pim rp mapping . . . . . . . . . . . . . . . .   1172
56 IPv6 Multicast Commands . . . . . . . . . . 1175
ipv6 pim (Global config) . . . . . . . . . . . . . . . .   1175
ipv6 pim (VLAN Interface config)
ipv6 pim bsr-border  . . . . . . . . . . . . . . . . . .   1177
ipv6 pim bsr-candidate  . . . . . . . . . . . . . . . .   1177
 . . . . . . . . . . .  1176 
ipv6 pim dense
. . . . . . . . . . . . . . . . . . . . .  1178 
ipv6 pim dr-priority. . . . . . . . . . . . . . . . . . .   1179
ipv6 pim hello-interval. . . . . . . . . . . . . . . . .   1180
ipv6 pim join-prune-interval
. . . . . . . . . . . . . .  1180 
ipv6 pim register-rate-limit  . . . . . . . . . . . . . .   1181
ipv6 pim register-threshold . . . . . . . . . . . . . .   1182
ipv6 pim rp-address
 . . . . . . . . . . . . . . . . . .  1183 
Contents  46 
Page 47
ipv6 pim rp-candidate . . . . . . . . . . . . . . . . .   1183
ipv6 pim sparse (Global config)
. . . . . . . . . . . .  1184 
ipv6 pim spt-threshold . . . . . . . . . . . . . . . . .   1185
ipv6 pim ssm . . . . . . . . . . . . . . . . . . . . . .   1186
show ipv6 pim
 . . . . . . . . . . . . . . . . . . . . .  1186 
show ipv6 pim bsr . . . . . . . . . . . . . . . . . . .   1188
show ipv6 pim bsr-router  . . . . . . . . . . . . . . .   1188
show ipv6 pim interface
. . . . . . . . . . . . . . . .  1190 
show ipv6 pim neighbor . . . . . . . . . . . . . . . .   1190
show ipv6 pim rphash . . . . . . . . . . . . . . . . .   1191
show ipv6 pim rp mapping
. . . . . . . . . . . . . . .  1192 
57 OSPF Commands . . . . . . . . . . . . . . . . . 1195
Route Preferences . . . . . . . . . . . . . . . . . . .   1196
OSPF Equal Cost Multipath (ECMP) . . . . . . . . . .   1196
Forwarding of OSPF Opaque LSAs Enabled by Default
 1197 
Passive Interfaces . . . . . . . . . . . . . . . . . . .   1197
Graceful Restart . . . . . . . . . . . . . . . . . . . .   1198
Commands in this Chapter
. . . . . . . . . . . . . . .  1198 
area default-cost (Router OSPF). . . . . . . . . . . .   1199
area nssa (Router OSPF) . . . . . . . . . . . . . . . .   1200
area nssa default-info-originate (Router OSPF Config)
 1202 
Contents  47 
Page 48
area nssa no-redistribute . . . . . . . . . . . . . . .   1203
area nssa no-summary
. . . . . . . . . . . . . . . . .  1204 
area nssa translator-role  . . . . . . . . . . . . . . .   1204
area nssa translator-stab-intv . . . . . . . . . . . . .   1205
area range (Router OSPF)
 . . . . . . . . . . . . . . .  1206 
area stub . . . . . . . . . . . . . . . . . . . . . . . .   1210
area stub no-summary . . . . . . . . . . . . . . . . .   1211
area virtual-link
 . . . . . . . . . . . . . . . . . . . .  1211 
area virtual-link authentication . . . . . . . . . . . .   1214
area virtual-link dead-interval  . . . . . . . . . . . .   1215
area virtual-link hello-interval
 . . . . . . . . . . . .  1216 
area virtual-link retransmit-interval  . . . . . . . . .   1217
area virtual-link transmit-delay . . . . . . . . . . . .   1218
auto-cost
. . . . . . . . . . . . . . . . . . . . . . . .  1219 
bandwidth . . . . . . . . . . . . . . . . . . . . . . .   1220
capability opaque . . . . . . . . . . . . . . . . . . .   1220
clear ip ospf
clear ip ospf stub-router
 . . . . . . . . . . . . . . . . . . . . . .  1221 
. . . . . . . . . . . . . . . .  1222 
compatible rfc1583. . . . . . . . . . . . . . . . . . .   1223
default-information originate (Router OSPF Configuration)
default-metric . . . . . . . . . . . . . . . . . . . . .   1225
Contents  48 
 1224 
Page 49
distance ospf . . . . . . . . . . . . . . . . . . . . . .   1226
distribute-list out
 . . . . . . . . . . . . . . . . . . .  1227 
enable  . . . . . . . . . . . . . . . . . . . . . . . . .   1228
exit-overflow-interval . . . . . . . . . . . . . . . . .   1229
external-lsdb-limit
. . . . . . . . . . . . . . . . . . .  1229 
ip ospf area. . . . . . . . . . . . . . . . . . . . . . .   1230
ip ospf authentication . . . . . . . . . . . . . . . . .   1231
ip ospf cost
. . . . . . . . . . . . . . . . . . . . . . .  1232 
ip ospf database-filter all out . . . . . . . . . . . . .   1233
ip ospf dead-interval. . . . . . . . . . . . . . . . . .   1233
ip ospf hello-interval
. . . . . . . . . . . . . . . . . .  1234 
ip ospf mtu-ignore . . . . . . . . . . . . . . . . . . .   1235
ip ospf network  . . . . . . . . . . . . . . . . . . . .   1236
ip ospf priority
. . . . . . . . . . . . . . . . . . . . .  1237 
ip ospf retransmit-interval. . . . . . . . . . . . . . .   1237
ip ospf transmit-delay . . . . . . . . . . . . . . . . .   1238
log adjacency-changes
max-metric router-lsa
 . . . . . . . . . . . . . . . .  1239 
. . . . . . . . . . . . . . . . .  1240 
maximum-paths  . . . . . . . . . . . . . . . . . . . .   1241
network area
. . . . . . . . . . . . . . . . . . . . . .  1242 
nsf  . . . . . . . . . . . . . . . . . . . . . . . . . . .   1243
Contents  49 
Page 50
nsf helper  . . . . . . . . . . . . . . . . . . . . . . .   1245
nsf helper strict-lsa-checking
. . . . . . . . . . . . .  1245 
nsf restart-interval. . . . . . . . . . . . . . . . . . .   1246
passive-interface default . . . . . . . . . . . . . . .   1247
passive-interface
 . . . . . . . . . . . . . . . . . . .  1248 
redistribute. . . . . . . . . . . . . . . . . . . . . . .   1249
router-id  . . . . . . . . . . . . . . . . . . . . . . . .   1250
router ospf
 . . . . . . . . . . . . . . . . . . . . . . .  1251 
show ip ospf . . . . . . . . . . . . . . . . . . . . . .   1251
show ip ospf abr . . . . . . . . . . . . . . . . . . . .   1258
show ip ospf area
 . . . . . . . . . . . . . . . . . . .  1259 
show ip ospf asbr  . . . . . . . . . . . . . . . . . . .   1261
show ip ospf database . . . . . . . . . . . . . . . . .   1262
show ip ospf database database-summary
. . . . . .  1265 
show ip ospf interface. . . . . . . . . . . . . . . . .   1268
show ip ospf interface brief . . . . . . . . . . . . . .   1270
show ip ospf interface stats
show ip ospf neighbor
. . . . . . . . . . . . . .  1271 
. . . . . . . . . . . . . . . . .  1272 
show ip ospf range. . . . . . . . . . . . . . . . . . .   1275
show ip ospf statistics
. . . . . . . . . . . . . . . . .  1277 
show ip ospf stub table  . . . . . . . . . . . . . . . .   1278
Contents  50 
Page 51
show ip ospf traffic  . . . . . . . . . . . . . . . . . .   1279
show ip ospf virtual-link
. . . . . . . . . . . . . . . .  1282 
show ip ospf virtual-links brief . . . . . . . . . . . .   1283
timers pacing flood  . . . . . . . . . . . . . . . . . .   1284
timers pacing lsa-group
. . . . . . . . . . . . . . . .  1284 
timers spf. . . . . . . . . . . . . . . . . . . . . . . .   1285
58 OSPFv3 Commands . . . . . . . . . . . . . . . 1287
area default-cost (Router OSPFv3)  . . . . . . . . . .   1288
area nssa (Router OSPFv3)
area nssa default-info-originate (Router OSPFv3 Config)  1290  
area nssa no-redistribute . . . . . . . . . . . . . . .   1291
area nssa no-summary
area nssa translator-role  . . . . . . . . . . . . . . .   1293
area nssa translator-stab-intv . . . . . . . . . . . . .   1294
 . . . . . . . . . . . . . .  1289 
. . . . . . . . . . . . . . . . .  1292 
area range (Router OSPFv3)
. . . . . . . . . . . . . .  1295 
area stub . . . . . . . . . . . . . . . . . . . . . . . .   1296
area stub no-summary . . . . . . . . . . . . . . . . .   1297
area virtual-link
 . . . . . . . . . . . . . . . . . . . .  1298 
area virtual-link dead-interval  . . . . . . . . . . . .   1300
area virtual-link hello-interval  . . . . . . . . . . . .   1300
area virtual-link retransmit-interval
 . . . . . . . . .  1301 
Contents  51 
Page 52
area virtual-link transmit-delay . . . . . . . . . . . .   1302
default-information originate (Router OSPFv3 Configuration)
default-metric . . . . . . . . . . . . . . . . . . . . .   1304
distance ospf . . . . . . . . . . . . . . . . . . . . . .   1305
enable
 . . . . . . . . . . . . . . . . . . . . . . . . .  1306 
exit-overflow-interval . . . . . . . . . . . . . . . . .   1306
external-lsdb-limit. . . . . . . . . . . . . . . . . . .   1307
ipv6 ospf
 . . . . . . . . . . . . . . . . . . . . . . . .  1308 
ipv6 ospf area  . . . . . . . . . . . . . . . . . . . . .   1309
ipv6 ospf cost  . . . . . . . . . . . . . . . . . . . . .   1310
ipv6 ospf dead-interval
 . . . . . . . . . . . . . . . .  1310 
ipv6 ospf hello-interval  . . . . . . . . . . . . . . . .   1311
ipv6 ospf mtu-ignore . . . . . . . . . . . . . . . . . .   1312
ipv6 ospf network
 . . . . . . . . . . . . . . . . . . .  1313 
ipv6 ospf priority . . . . . . . . . . . . . . . . . . . .   1314
 1303 
ipv6 ospf retransmit-interval  . . . . . . . . . . . . .   1315
ipv6 ospf transmit-delay
ipv6 router ospf
. . . . . . . . . . . . . . . .  1315 
 . . . . . . . . . . . . . . . . . . . .  1316 
maximum-paths  . . . . . . . . . . . . . . . . . . . .   1317
nsf
 . . . . . . . . . . . . . . . . . . . . . . . . . . .  1317 
nsf helper  . . . . . . . . . . . . . . . . . . . . . . .   1318
Contents  52 
Page 53
nsf helper strict-lsa-checking. . . . . . . . . . . . .   1319
nsf restart-interval
. . . . . . . . . . . . . . . . . . .  1320 
passive-interface  . . . . . . . . . . . . . . . . . . .   1321
passive-interface default . . . . . . . . . . . . . . .   1322
redistribute
. . . . . . . . . . . . . . . . . . . . . . .  1322 
router-id  . . . . . . . . . . . . . . . . . . . . . . . .   1323
show ipv6 ospf . . . . . . . . . . . . . . . . . . . . .   1324
show ipv6 ospf abr
. . . . . . . . . . . . . . . . . . .  1328 
show ipv6 ospf area . . . . . . . . . . . . . . . . . .   1329
show ipv6 ospf asbr . . . . . . . . . . . . . . . . . .   1330
show ipv6 ospf border-routers
. . . . . . . . . . . . .  1330 
show ipv6 ospf database  . . . . . . . . . . . . . . .   1331
show ipv6 ospf database database-summary. . . . .   1334
show ipv6 ospf interface
 . . . . . . . . . . . . . . .  1335 
show ipv6 ospf interface brief. . . . . . . . . . . . .   1337
show ipv6 ospf interface stats. . . . . . . . . . . . .   1337
show ipv6 ospf interface vlan
show ipv6 ospf neighbor
. . . . . . . . . . . . .  1339 
. . . . . . . . . . . . . . . .  1340 
show ipv6 ospf range  . . . . . . . . . . . . . . . . .   1342
show ipv6 ospf stub table
 . . . . . . . . . . . . . . .  1343 
show ipv6 ospf virtual-links . . . . . . . . . . . . . .   1343
Contents  53 
Page 54
show ipv6 ospf virtual-link brief  . . . . . . . . . . .   1344
59 Router Discovery Protocol Commands  1347
Commands in this Chapter. . . . . . . . . . . . . . .   1347
ip irdp  . . . . . . . . . . . . . . . . . . . . . . . . .   1347
ip irdp address . . . . . . . . . . . . . . . . . . . . .   1349
ip irdp holdtime
 . . . . . . . . . . . . . . . . . . . .  1350 
ip irdp maxadvertinterval . . . . . . . . . . . . . . .   1351
ip irdp minadvertinterval  . . . . . . . . . . . . . . .   1352
ip irdp multicast
 . . . . . . . . . . . . . . . . . . . .  1353 
ip irdp preference . . . . . . . . . . . . . . . . . . .   1353
show ip irdp . . . . . . . . . . . . . . . . . . . . . .   1354
60 Routing Information Protocol Commands  1357
Commands in this Chapter. . . . . . . . . . . . . . .   1357
auto-summary . . . . . . . . . . . . . . . . . . . . .   1357
default-information originate (Router RIP Configuration) 1358  
default-metric
distance rip  . . . . . . . . . . . . . . . . . . . . . .   1360
distribute-list out  . . . . . . . . . . . . . . . . . . .   1360
 . . . . . . . . . . . . . . . . . . . . .  1359 
enable
 . . . . . . . . . . . . . . . . . . . . . . . . .  1361 
hostroutesaccept  . . . . . . . . . . . . . . . . . . .   1362
Contents  54 
Page 55
ip rip . . . . . . . . . . . . . . . . . . . . . . . . . .   1363
ip rip authentication
ip rip receive version  . . . . . . . . . . . . . . . . .   1364
ip rip send version . . . . . . . . . . . . . . . . . . .   1365
redistribute
router rip . . . . . . . . . . . . . . . . . . . . . . . .   1367
show ip rip . . . . . . . . . . . . . . . . . . . . . . .   1368
show ip rip interface
show ip rip interface brief. . . . . . . . . . . . . . .   1370
split-horizon . . . . . . . . . . . . . . . . . . . . . .   1371
. . . . . . . . . . . . . . . . . . . . . . .  1366 
. . . . . . . . . . . . . . . . . .  1363 
. . . . . . . . . . . . . . . . . .  1369 
61 Tunnel Interface Commands . . . . . . . . 1373
Commands in this Chapter. . . . . . . . . . . . . . .   1373
interface tunnel  . . . . . . . . . . . . . . . . . . . .   1374
show interfaces tunnel  . . . . . . . . . . . . . . . .   1374
tunnel destination
tunnel mode ipv6ip. . . . . . . . . . . . . . . . . . .   1376
tunnel source  . . . . . . . . . . . . . . . . . . . . .   1377
 . . . . . . . . . . . . . . . . . . .  1375 
62 Virtual Router Redundancy Protocol Commands 
1379
Pingable VRRP Interface  . . . . . . . . . . . . . . .   1379
Contents  55 
Page 56
VRRP Route/Interface Tracking . . . . . . . . . . . .   1380
Interface Tracking
. . . . . . . . . . . . . . . . . . .  1381 
Route Tracking . . . . . . . . . . . . . . . . . . . . .   1381
Commands in this Chapter. . . . . . . . . . . . . . .   1381
ip vrrp
 . . . . . . . . . . . . . . . . . . . . . . . . .  1382 
vrrp accept-mode  . . . . . . . . . . . . . . . . . . .   1382
vrrp authentication  . . . . . . . . . . . . . . . . . .   1383
vrrp description
 . . . . . . . . . . . . . . . . . . . .  1384 
vrrp ip  . . . . . . . . . . . . . . . . . . . . . . . . .   1385
vrrp mode  . . . . . . . . . . . . . . . . . . . . . . .   1386
vrrp preempt
. . . . . . . . . . . . . . . . . . . . . .  1387 
vrrp priority. . . . . . . . . . . . . . . . . . . . . . .   1388
vrrp timers advertise. . . . . . . . . . . . . . . . . .   1389
vrrp timers learn
. . . . . . . . . . . . . . . . . . . .  1390 
vrrp track interface  . . . . . . . . . . . . . . . . . .   1391
vrrp track ip route . . . . . . . . . . . . . . . . . . .   1392
show vrrp
show vrrp interface
 . . . . . . . . . . . . . . . . . . . . . . .  1394 
 . . . . . . . . . . . . . . . . . .  1396 
show vrrp interface brief  . . . . . . . . . . . . . . .   1398
show vrrp interface stats
 . . . . . . . . . . . . . . .  1399 
ip vrrp accept-mode . . . . . . . . . . . . . . . . . .   1400
Contents  56 
Page 57
show ip vrrp interface . . . . . . . . . . . . . . . . .   1401
63 Utility Commands. . . . . . . . . . . . . . . . . 1403
64 Auto-Install Commands . . . . . . . . . . . . 1405
Commands in this Chapter. . . . . . . . . . . . . . .   1406
boot auto-copy-sw. . . . . . . . . . . . . . . . . . .   1406
boot auto-copy-sw allow-downgrade  . . . . . . . .   1407
boot host autoreboot
boot host autosave . . . . . . . . . . . . . . . . . . .   1409
boot host dhcp . . . . . . . . . . . . . . . . . . . . .   1409
boot host retrycount
show auto-copy-sw . . . . . . . . . . . . . . . . . .   1411
show boot  . . . . . . . . . . . . . . . . . . . . . . .  1412  
. . . . . . . . . . . . . . . . . .  1408 
. . . . . . . . . . . . . . . . . .  1410 
65 Captive Portal Commands . . . . . . . . . . 1415
Commands in this Chapter. . . . . . . . . . . . . . .   1415
authentication timeout
captive-portal  . . . . . . . . . . . . . . . . . . . . .  1417  
enable
 . . . . . . . . . . . . . . . . . . . . . . . . .  1418 
http port  . . . . . . . . . . . . . . . . . . . . . . . .   1419
https port . . . . . . . . . . . . . . . . . . . . . . . .   1419
. . . . . . . . . . . . . . . . .  1417 
Contents  57 
Page 58
show captive-portal . . . . . . . . . . . . . . . . . .   1420
show captive-portal status
 . . . . . . . . . . . . . .  1421 
block . . . . . . . . . . . . . . . . . . . . . . . . . .   1422
configuration. . . . . . . . . . . . . . . . . . . . . .   1423
enable
 . . . . . . . . . . . . . . . . . . . . . . . . .  1423 
group . . . . . . . . . . . . . . . . . . . . . . . . . .   1424
interface . . . . . . . . . . . . . . . . . . . . . . . .   1425
locale
. . . . . . . . . . . . . . . . . . . . . . . . . .  1425 
name (Captive Portal) . . . . . . . . . . . . . . . . .   1426
protocol  . . . . . . . . . . . . . . . . . . . . . . . .   1427
redirect
. . . . . . . . . . . . . . . . . . . . . . . . .  1427 
redirect-url. . . . . . . . . . . . . . . . . . . . . . .   1428
session-timeout  . . . . . . . . . . . . . . . . . . . .   1428
verification
. . . . . . . . . . . . . . . . . . . . . . .  1429 
captive-portal client deauthenticate  . . . . . . . . .   1430
show captive-portal client status . . . . . . . . . . .   1430
show captive-portal configuration client status
show captive-portal interface client status
 . . .  1431 
 . . . . .  1432 
show captive-portal interface configuration status  .   1434
clear captive-portal users
. . . . . . . . . . . . . . .  1435 
no user . . . . . . . . . . . . . . . . . . . . . . . . .   1435
Contents  58 
Page 59
show captive-portal user  . . . . . . . . . . . . . . .   1436
user group
 . . . . . . . . . . . . . . . . . . . . . . .  1437 
user-logout. . . . . . . . . . . . . . . . . . . . . . .   1438
user name  . . . . . . . . . . . . . . . . . . . . . . .   1439
user password
. . . . . . . . . . . . . . . . . . . . .  1439 
user session-timeout  . . . . . . . . . . . . . . . . .   1440
show captive-portal configuration  . . . . . . . . . .   1441
show captive-portal configuration interface
. . . . .  1442 
show captive-portal configuration locales . . . . . .   1443
show captive-portal configuration status. . . . . . .   1444
user group
 . . . . . . . . . . . . . . . . . . . . . . .  1445 
user group moveusers . . . . . . . . . . . . . . . . .   1446
user group name . . . . . . . . . . . . . . . . . . . .   1446
66 CLI Macro Commands . . . . . . . . . . . . . 1449
Commands in this Chapter. . . . . . . . . . . . . . .   1450
macro name . . . . . . . . . . . . . . . . . . . . . .   1450
macro global apply  . . . . . . . . . . . . . . . . . .   1451
macro global trace
. . . . . . . . . . . . . . . . . . .  1452 
macro global description . . . . . . . . . . . . . . .   1453
macro apply . . . . . . . . . . . . . . . . . . . . . .   1454
macro trace
 . . . . . . . . . . . . . . . . . . . . . .  1455 
Contents  59 
Page 60
macro description . . . . . . . . . . . . . . . . . . .   1456
show parser macro
 . . . . . . . . . . . . . . . . . .  1456 
67 Clock Commands . . . . . . . . . . . . . . . . . 1459
Real-time Clock . . . . . . . . . . . . . . . . . . . .   1459
Simple Network Time Protocol . . . . . . . . . . . .   1459
Commands in this Chapter
show sntp configuration. . . . . . . . . . . . . . . .   1460
show sntp server . . . . . . . . . . . . . . . . . . . .   1461
show sntp status
. . . . . . . . . . . . . . . . . . . .  1463 
sntp authenticate  . . . . . . . . . . . . . . . . . . .   1464
sntp authentication-key . . . . . . . . . . . . . . . .   1465
sntp broadcast client enable
sntp client poll timer. . . . . . . . . . . . . . . . . .   1466
sntp server . . . . . . . . . . . . . . . . . . . . . . .   1467
. . . . . . . . . . . . . . .  1460 
 . . . . . . . . . . . . .  1466 
sntp trusted-key
 . . . . . . . . . . . . . . . . . . . .  1468 
sntp unicast client enable . . . . . . . . . . . . . . .   1469
clock timezone hours-offset . . . . . . . . . . . . . .   1470
no clock timezone
. . . . . . . . . . . . . . . . . . .  1470 
clock summer-time recurring . . . . . . . . . . . . .   1471
clock summer-time date . . . . . . . . . . . . . . . .   1472
no clock summer-time
. . . . . . . . . . . . . . . . .  1473 
Contents  60 
Page 61
show clock . . . . . . . . . . . . . . . . . . . . . . .   1474
68 Command Line Configuration Scripting Commands 
1477
Commands in this Chapter. . . . . . . . . . . . . . .   1477
script apply
. . . . . . . . . . . . . . . . . . . . . . .  1477 
script delete . . . . . . . . . . . . . . . . . . . . . .   1478
script list . . . . . . . . . . . . . . . . . . . . . . . .   1479
script show
. . . . . . . . . . . . . . . . . . . . . . .  1479 
script validate . . . . . . . . . . . . . . . . . . . . .   1480
69 Configuration and Image File Commands  1483
File System Commands  . . . . . . . . . . . . . . . .   1483
Command Line Interface Scripting
Commands in this Chapter. . . . . . . . . . . . . . .   1483
boot system  . . . . . . . . . . . . . . . . . . . . . .   1484
clear config
copy
 . . . . . . . . . . . . . . . . . . . . . .  1485 
 . . . . . . . . . . . . . . . . . . . . . . . . . .  1486 
delete. . . . . . . . . . . . . . . . . . . . . . . . . .   1492
 . . . . . . . . . .  1483 
delete backup-config
 . . . . . . . . . . . . . . . . .  1493 
delete backup-image  . . . . . . . . . . . . . . . . .   1493
delete startup-config  . . . . . . . . . . . . . . . . .   1494
Contents  61 
Page 62
dir  . . . . . . . . . . . . . . . . . . . . . . . . . . .   1494
erase
. . . . . . . . . . . . . . . . . . . . . . . . . .  1495 
filedescr . . . . . . . . . . . . . . . . . . . . . . . .   1496
rename . . . . . . . . . . . . . . . . . . . . . . . . .   1497
show backup-config
. . . . . . . . . . . . . . . . . .  1498 
show bootvar. . . . . . . . . . . . . . . . . . . . . .   1499
show running-config. . . . . . . . . . . . . . . . . .   1500
show startup-config
. . . . . . . . . . . . . . . . . .  1501 
update bootcode . . . . . . . . . . . . . . . . . . . .   1503
write . . . . . . . . . . . . . . . . . . . . . . . . . .   1503
70 Denial of Service Commands . . . . . . . 1505
Commands in this Chapter. . . . . . . . . . . . . . .   1506
dos-control firstfrag . . . . . . . . . . . . . . . . . .   1507
dos-control icmp. . . . . . . . . . . . . . . . . . . .   1507
dos-control l4port
dos-control sipdip . . . . . . . . . . . . . . . . . . .   1509
dos-control tcpflag  . . . . . . . . . . . . . . . . . .   1510
 . . . . . . . . . . . . . . . . . . .  1508 
dos-control tcpfrag
 . . . . . . . . . . . . . . . . . .  1510 
ip icmp echo-reply . . . . . . . . . . . . . . . . . . .   1511
ip icmp error-interval  . . . . . . . . . . . . . . . . .   1512
ip unreachables
 . . . . . . . . . . . . . . . . . . . .  1513 
Contents  62 
Page 63
ip redirects. . . . . . . . . . . . . . . . . . . . . . .   1513
ipv6 icmp error-interval
 . . . . . . . . . . . . . . . .  1514 
ipv6 unreachables . . . . . . . . . . . . . . . . . . .   1515
show dos-control  . . . . . . . . . . . . . . . . . . .   1515
71 Line Commands . . . . . . . . . . . . . . . . . . 1517
exec-timeout. . . . . . . . . . . . . . . . . . . . . .   1517
history  . . . . . . . . . . . . . . . . . . . . . . . . .   1518
history size . . . . . . . . . . . . . . . . . . . . . . .   1519
line
. . . . . . . . . . . . . . . . . . . . . . . . . . .  1519 
show line. . . . . . . . . . . . . . . . . . . . . . . .   1521
speed . . . . . . . . . . . . . . . . . . . . . . . . . .   1522
72 Management ACL Commands . . . . . . . 1523 
Commands in this Chapter. . . . . . . . . . . . . . .   1523
deny (management) . . . . . . . . . . . . . . . . . .   1524
management access-class  . . . . . . . . . . . . . .   1525
management access-list
 . . . . . . . . . . . . . . .  1526 
permit (management)  . . . . . . . . . . . . . . . . .   1527
show management access-class . . . . . . . . . . .   1529
show management access-list
 . . . . . . . . . . . .  1530 
Contents  63 
Page 64
73 Mode Commands . . . . . . . . . . . . . . . . . 1531
configure terminal . . . . . . . . . . . . . . . . . . .   1531
do. . . . . . . . . . . . . . . . . . . . . . . . . . . .   1531
74 Password Management Commands . . 1535
Configurable Minimum Password Length. . . . . . .   1535
Password History
 . . . . . . . . . . . . . . . . . . .  1535 
Password Aging . . . . . . . . . . . . . . . . . . . .   1535
User Lockout . . . . . . . . . . . . . . . . . . . . . .   1535
Password Strength
 . . . . . . . . . . . . . . . . . .  1536 
Commands in this Chapter. . . . . . . . . . . . . . .   1537
passwords aging. . . . . . . . . . . . . . . . . . . .   1538
passwords history
. . . . . . . . . . . . . . . . . . .  1538 
passwords lock-out . . . . . . . . . . . . . . . . . .   1539
passwords min-length . . . . . . . . . . . . . . . . .   1540
passwords strength-check
 . . . . . . . . . . . . . .  1541 
passwords strength minimum uppercase-letters. . .  1542  
passwords strength minimum lowercase-letters. . .  1543  
passwords strength minimum numeric-characters
 .  1544 
passwords strength minimum special-characters . .   1545
passwords strength max-limit consecutive-characters 1545  
Contents  64 
Page 65
passwords strength max-limit repeated-characters . 1546  
passwords strength minimum character-classes
 . .  1547 
passwords strength exclude-keyword . . . . . . . .   1548
enable password encrypted . . . . . . . . . . . . . .   1549
show passwords configuration
. . . . . . . . . . . .  1550 
show passwords result . . . . . . . . . . . . . . . .   1552
75 PHY Diagnostics Commands . . . . . . . . 1553
show copper-ports tdr . . . . . . . . . . . . . . . . .   1553
show fiber-ports optical-transceiver
 . . . . . . . . .  1554 
test copper-port tdr  . . . . . . . . . . . . . . . . . .   1555
76 RMON Commands . . . . . . . . . . . . . . . . 1557
Commands in this Chapter. . . . . . . . . . . . . . .   1557
rmon alarm
. . . . . . . . . . . . . . . . . . . . . . .  1557 
rmon collection history . . . . . . . . . . . . . . . .   1560
rmon event . . . . . . . . . . . . . . . . . . . . . . .   1561
show rmon alarm
 . . . . . . . . . . . . . . . . . . .  1562 
show rmon alarms . . . . . . . . . . . . . . . . . . .   1564
show rmon collection history . . . . . . . . . . . . .   1565
show rmon events
. . . . . . . . . . . . . . . . . . .  1566 
show rmon history . . . . . . . . . . . . . . . . . . .   1567
Contents  65 
Page 66
show rmon log . . . . . . . . . . . . . . . . . . . . .   1571
show rmon statistics
. . . . . . . . . . . . . . . . . .  1572 
77 SDM Templates Commands . . . . . . . . . 1577
Commands in this Chapter. . . . . . . . . . . . . . .   1577
sdm prefer . . . . . . . . . . . . . . . . . . . . . . .   1577
show sdm prefer
. . . . . . . . . . . . . . . . . . . .  1579 
78 Serviceability Tracing Packet Commands  1583
Commands in this Chapter. . . . . . . . . . . . . . .   1583
debug arp  . . . . . . . . . . . . . . . . . . . . . . .   1584
debug auto-voip
debug clear  . . . . . . . . . . . . . . . . . . . . . .   1585
debug console . . . . . . . . . . . . . . . . . . . . .   1586
debug dot1x
 . . . . . . . . . . . . . . . . . . . .  1585 
 . . . . . . . . . . . . . . . . . . . . . .  1586 
debug igmpsnooping. . . . . . . . . . . . . . . . . .   1587
debug ip acl  . . . . . . . . . . . . . . . . . . . . . .   1588
debug ip dvmrp
. . . . . . . . . . . . . . . . . . . . .  1588 
debug ip igmp . . . . . . . . . . . . . . . . . . . . .   1589
debug ip mcache. . . . . . . . . . . . . . . . . . . .   1590
debug ip pimdm packet
 . . . . . . . . . . . . . . . .  1591 
debug ip pimsm packet . . . . . . . . . . . . . . . .   1592
Contents  66 
Page 67
debug ip vrrp . . . . . . . . . . . . . . . . . . . . . .   1592
debug ipv6 dhcp
 . . . . . . . . . . . . . . . . . . . .  1593 
debug ipv6 mcache  . . . . . . . . . . . . . . . . . .   1594
debug ipv6 mld . . . . . . . . . . . . . . . . . . . . .   1594
debug ipv6 pimdm
 . . . . . . . . . . . . . . . . . . .  1595 
debug ipv6 pimsm  . . . . . . . . . . . . . . . . . . .   1596
debug isdp . . . . . . . . . . . . . . . . . . . . . . .   1597
debug lacp
. . . . . . . . . . . . . . . . . . . . . . .  1598 
debug mldsnooping  . . . . . . . . . . . . . . . . . .   1598
debug ospf . . . . . . . . . . . . . . . . . . . . . . .   1599
debug ospfv3
. . . . . . . . . . . . . . . . . . . . . .  1600 
debug ping . . . . . . . . . . . . . . . . . . . . . . .   1600
debug rip . . . . . . . . . . . . . . . . . . . . . . . .   1601
debug sflow
 . . . . . . . . . . . . . . . . . . . . . .  1602 
debug spanning-tree. . . . . . . . . . . . . . . . . .   1602
debug vrrp . . . . . . . . . . . . . . . . . . . . . . .   1603
show debugging
. . . . . . . . . . . . . . . . . . . .  1603 
79 Sflow Commands . . . . . . . . . . . . . . . . . 1605
Commands in this Chapter. . . . . . . . . . . . . . .   1605
sflow destination  . . . . . . . . . . . . . . . . . . .   1605
sflow polling
. . . . . . . . . . . . . . . . . . . . . .  1607 
Contents  67 
Page 68
sflow polling (Interface Mode)  . . . . . . . . . . . .   1608
sflow sampling
. . . . . . . . . . . . . . . . . . . . .  1609 
sflow sampling (Interface Mode) . . . . . . . . . . .   1610
show sflow agent  . . . . . . . . . . . . . . . . . . .   1611
show sflow destination
 . . . . . . . . . . . . . . . .  1612 
show sflow polling  . . . . . . . . . . . . . . . . . .   1613
show sflow sampling  . . . . . . . . . . . . . . . . .   1614
80 SNMP Commands . . . . . . . . . . . . . . . . 1617
Commands in this Chapter. . . . . . . . . . . . . . .   1617
show snmp . . . . . . . . . . . . . . . . . . . . . . .   1617
show snmp engineID  . . . . . . . . . . . . . . . . .   1619
show snmp filters
show snmp group  . . . . . . . . . . . . . . . . . . .   1621
show snmp user . . . . . . . . . . . . . . . . . . . .   1622
 . . . . . . . . . . . . . . . . . . .  1619 
show snmp views
 . . . . . . . . . . . . . . . . . . .  1623 
show trapflags . . . . . . . . . . . . . . . . . . . . .   1624
snmp-server community . . . . . . . . . . . . . . . .   1626
snmp-server community-group
 . . . . . . . . . . . .  1628 
snmp-server contact. . . . . . . . . . . . . . . . . .   1629
snmp-server enable traps . . . . . . . . . . . . . . .   1630
snmp-server engineID local
. . . . . . . . . . . . . .  1632 
Contents  68 
Page 69
snmp-server filter . . . . . . . . . . . . . . . . . . .   1633
snmp-server group
. . . . . . . . . . . . . . . . . . .  1635 
snmp-server host  . . . . . . . . . . . . . . . . . . .   1636
snmp-server location  . . . . . . . . . . . . . . . . .   1638
snmp-server user
 . . . . . . . . . . . . . . . . . . .  1639 
snmp-server view . . . . . . . . . . . . . . . . . . .   1640
snmp-server v3-host . . . . . . . . . . . . . . . . . .   1642
81 SSH Commands . . . . . . . . . . . . . . . . . . 1645
Commands in this Chapter. . . . . . . . . . . . . . .   1645
crypto key generate dsa . . . . . . . . . . . . . . . .   1645
crypto key generate rsa . . . . . . . . . . . . . . . .   1646
crypto key pubkey-chain ssh
crypto key zeroize pubkey-chain  . . . . . . . . . . .   1648
crypto key zeroize {rsa|dsa} . . . . . . . . . . . . . .   1649
 . . . . . . . . . . . . .  1647 
ip ssh port
 . . . . . . . . . . . . . . . . . . . . . . .  1649 
ip ssh pubkey-auth. . . . . . . . . . . . . . . . . . .   1650
ip ssh server . . . . . . . . . . . . . . . . . . . . . .   1651
key-string
 . . . . . . . . . . . . . . . . . . . . . . .  1651 
no crypto certificate . . . . . . . . . . . . . . . . . .   1653
show crypto key mypubkey . . . . . . . . . . . . . .   1654
show crypto key pubkey-chain ssh
. . . . . . . . . .  1655 
Contents  69 
Page 70
show ip ssh  . . . . . . . . . . . . . . . . . . . . . .   1656
user-key
 . . . . . . . . . . . . . . . . . . . . . . . .  1657 
82 Syslog Commands . . . . . . . . . . . . . . . . 1659
CLI Logged to Local File and Syslog Server. . . . . .   1659
Commands in this Chapter. . . . . . . . . . . . . . .   1660
clear logging
clear logging file. . . . . . . . . . . . . . . . . . . .   1661
description (Logging)  . . . . . . . . . . . . . . . . .   1662
level
logging cli-command  . . . . . . . . . . . . . . . . .   1663
logging . . . . . . . . . . . . . . . . . . . . . . . . .   1665
logging audit
logging buffered . . . . . . . . . . . . . . . . . . . .   1668
logging console . . . . . . . . . . . . . . . . . . . .   1669
. . . . . . . . . . . . . . . . . . . . . .  1661 
 . . . . . . . . . . . . . . . . . . . . . . . . . .  1663 
. . . . . . . . . . . . . . . . . . . . . .  1667 
logging facility
. . . . . . . . . . . . . . . . . . . . .  1670 
logging file . . . . . . . . . . . . . . . . . . . . . . .   1671
logging monitor  . . . . . . . . . . . . . . . . . . . .   1672
logging on
 . . . . . . . . . . . . . . . . . . . . . . .  1673 
logging snmp . . . . . . . . . . . . . . . . . . . . . .   1674
logging web-session  . . . . . . . . . . . . . . . . .   1674
port
. . . . . . . . . . . . . . . . . . . . . . . . . . .  1675 
Contents  70 
Page 71
show logging. . . . . . . . . . . . . . . . . . . . . .   1676
show logging file
 . . . . . . . . . . . . . . . . . . .  1677 
show syslog-servers. . . . . . . . . . . . . . . . . .   1678
terminal monitor . . . . . . . . . . . . . . . . . . . .   1679
83 System Management Commands . . . . 1681
asset-tag . . . . . . . . . . . . . . . . . . . . . . . .   1681
banner exec  . . . . . . . . . . . . . . . . . . . . . .  1682  
banner login . . . . . . . . . . . . . . . . . . . . . .   1683
banner motd
banner motd acknowledge . . . . . . . . . . . . . .   1685
clear checkpoint statistics  . . . . . . . . . . . . . .   1688
clear counters stack-ports
cut-through mode  . . . . . . . . . . . . . . . . . . .   1689
exec-banner . . . . . . . . . . . . . . . . . . . . . .   1690
 . . . . . . . . . . . . . . . . . . . . . .  1684 
 . . . . . . . . . . . . . .  1688 
hardware profile portmode
 . . . . . . . . . . . . . .  1690 
hostname. . . . . . . . . . . . . . . . . . . . . . . .   1691
initiate failover. . . . . . . . . . . . . . . . . . . . .   1692
locate
. . . . . . . . . . . . . . . . . . . . . . . . . .  1693 
login-banner . . . . . . . . . . . . . . . . . . . . . .   1694
media-type . . . . . . . . . . . . . . . . . . . . . . .   1695
member
. . . . . . . . . . . . . . . . . . . . . . . . .  1696 
Contents  71 
Page 72
motd-banner . . . . . . . . . . . . . . . . . . . . . .   1697
nsf
 . . . . . . . . . . . . . . . . . . . . . . . . . . .  1697 
ping. . . . . . . . . . . . . . . . . . . . . . . . . . .   1698
reload  . . . . . . . . . . . . . . . . . . . . . . . . .   1700
set description
. . . . . . . . . . . . . . . . . . . . .  1701 
slot . . . . . . . . . . . . . . . . . . . . . . . . . . .   1702
show banner . . . . . . . . . . . . . . . . . . . . . .   1703
show boot-version
. . . . . . . . . . . . . . . . . . .  1704 
show checkpoint statistics . . . . . . . . . . . . . .   1705
show cut-through mode . . . . . . . . . . . . . . . .   1706
show hardware profile
 . . . . . . . . . . . . . . . .  1707 
show interfaces advanced firmware . . . . . . . . .   1708
show interfaces media-type . . . . . . . . . . . . . .   1709
show memory cpu
. . . . . . . . . . . . . . . . . . .  1710 
show nsf . . . . . . . . . . . . . . . . . . . . . . . .   1710
show power-usage-history  . . . . . . . . . . . . . .   1711
show process cpu
show sessions
. . . . . . . . . . . . . . . . . . .  1713 
. . . . . . . . . . . . . . . . . . . . .  1715 
show slot . . . . . . . . . . . . . . . . . . . . . . . .   1716
show supported cardtype
 . . . . . . . . . . . . . . .  1717 
show supported switchtype . . . . . . . . . . . . . .   1719
Contents  72 
Page 73
show switch . . . . . . . . . . . . . . . . . . . . . .   1720
show system
. . . . . . . . . . . . . . . . . . . . . .  1728 
show system fan . . . . . . . . . . . . . . . . . . . .   1729
show system id  . . . . . . . . . . . . . . . . . . . .   1730
show system power
. . . . . . . . . . . . . . . . . .  1731 
show system temperature . . . . . . . . . . . . . . .   1732
show tech-support . . . . . . . . . . . . . . . . . . .   1733
show users
. . . . . . . . . . . . . . . . . . . . . . .  1736 
show version . . . . . . . . . . . . . . . . . . . . . .   1737
stack . . . . . . . . . . . . . . . . . . . . . . . . . .   1738
stack-port
 . . . . . . . . . . . . . . . . . . . . . . .  1738 
standby. . . . . . . . . . . . . . . . . . . . . . . . .   1740
switch renumber. . . . . . . . . . . . . . . . . . . .   1740
telnet
. . . . . . . . . . . . . . . . . . . . . . . . . .  1741 
traceroute  . . . . . . . . . . . . . . . . . . . . . . .   1744
84 Telnet Server Commands. . . . . . . . . . . 1747
Telnet Client Behaviors  . . . . . . . . . . . . . . . .   1747
Commands in this Chapter
ip telnet server disable  . . . . . . . . . . . . . . . .   1750
ip telnet port . . . . . . . . . . . . . . . . . . . . . .   1751
show ip telnet
 . . . . . . . . . . . . . . . . . . . . .  1751 
. . . . . . . . . . . . . . .  1750 
Contents  73 
Page 74
85 Terminal Length Commands . . . . . . . . 1753
terminal length. . . . . . . . . . . . . . . . . . . . .   1753
86 Time Ranges Commands . . . . . . . . . . . 1755 
time-range . . . . . . . . . . . . . . . . . . . . . . .   1755
absolute  . . . . . . . . . . . . . . . . . . . . . . . .   1756
periodic
show time-range. . . . . . . . . . . . . . . . . . . .   1759
 . . . . . . . . . . . . . . . . . . . . . . . .  1757 
87 User Interface Commands. . . . . . . . . . 1763
enable  . . . . . . . . . . . . . . . . . . . . . . . . .   1763
end
. . . . . . . . . . . . . . . . . . . . . . . . . . .  1764 
exit . . . . . . . . . . . . . . . . . . . . . . . . . . .   1764
quit . . . . . . . . . . . . . . . . . . . . . . . . . . .   1765
88 Web Server Commands . . . . . . . . . . . . 1767
Web Sessions  . . . . . . . . . . . . . . . . . . . . .   1767
Commands in this Chapter
common-name . . . . . . . . . . . . . . . . . . . . .   1768
country
. . . . . . . . . . . . . . . . . . . . . . . . .  1769 
. . . . . . . . . . . . . . .  1768 
crypto certificate generate  . . . . . . . . . . . . . .   1770
crypto certificate import. . . . . . . . . . . . . . . .   1771
Contents  74 
Page 75
crypto certificate request . . . . . . . . . . . . . . .   1772
duration
 . . . . . . . . . . . . . . . . . . . . . . . .  1773 
ip http port . . . . . . . . . . . . . . . . . . . . . . .   1774
ip http server . . . . . . . . . . . . . . . . . . . . . .   1775
ip http secure-certificate
 . . . . . . . . . . . . . . .  1775 
ip http secure-port . . . . . . . . . . . . . . . . . . .   1776
ip http secure-server. . . . . . . . . . . . . . . . . .   1777
key-generate
. . . . . . . . . . . . . . . . . . . . . .  1778 
location  . . . . . . . . . . . . . . . . . . . . . . . .   1778
organization-unit. . . . . . . . . . . . . . . . . . . .   1779
show crypto certificate mycertificate
. . . . . . . . .  1780 
show ip http server status . . . . . . . . . . . . . . .   1781
show ip http server secure status . . . . . . . . . . .   1781
state
 . . . . . . . . . . . . . . . . . . . . . . . . . .  1783 
A  Appendix A: List of Commands . . . . . . 1785
Contents  75 
Page 76
Contents  76 
Page 77
1
Command Groups 
Introduction 
The Command Line Interface (CLI) is a network management application 
operated through an ASCII terminal without the use of a Graphic User 
Interface (GUI) driven software application. By directly entering commands, 
the user has greater configuration flexibility. The CLI is a basic command-line 
interpreter similar to the UNIX C shell.
A switch can be configured and maintained by entering commands from the 
CLI, which is based solely on textual input and output with commands being 
entered by a terminal keyboard and the output displayed as text via a terminal 
monitor. The CLI can be accessed from a console terminal connected to an 
EIA/TIA-232 port or through a Telnet/SSH session.
This guide describes how the CLI is structured, describes the command 
syntax, and describes the command functionality.
This guide also provides information for configuring the PowerConnect 
switch, details the procedures, and provides configuration examples. Basic 
installation configuration is described in the 
completed before using this document.
User’s Guide
 and must be 
Command Groups 
The system commands can be broken down into four sets of functional 
groups: Layer 2, Data Center Technology, Layer 3, and Utility.
Table 1-1. System Command Groups
Command Group  Description
Layer 2 Commands
AAA
Administrative Profiles 
Commands
Configures connection security including authorization 
and passwords.
Group commands into a profile and assign a profile to a 
user upon authentication.
Command Groups  77 
Page 78
Table 1-1. System Command Groups 
Command Group  Description
Administrative Profiles
Address Table
Auto-VoIP
CDP Interoperability
DHCP L2 Relay
DHCP Management 
Interface
Dynamic ARP Inspection
Ethernet Configuration
Ethernet CFM
IGMP Snooping
IGMP Snooping Querier
IP Addressing
IPv6 ACL
IPv6 MLD Snooping
IPv6 MLD Snooping 
Querier
iSCSI Optimization
Link Dependency
LLDP
Port Ch annel
Port Monitor
QoS
Configures and displays ACL information.
Configures bridging address tables.
Configures Auto VoIP for IP phones on a switch.
Configures Cisco® Discovery Protocol (CDP).
Enables the Layer 2 DHCP Relay agent for an interface.
Configures DHCP snooping and whether an interface is 
trusted for filtering.
Configures for rejection of invalid and malicious ARP 
packets.
Configures all port configuration options for example 
ports, storm control, port speed and auto-negotiation. 
Configures and displays GVRP configuration and 
information.
Configures IGMP snooping and displays IGMP 
configuration and IGMP information.
Configures IGMP Snooping Querier and displays IGMP 
Snooping Querier information.
Configures and manages IP addresses on the switch.
Configures and displays ACL information for IPv6.
Configures IPv6 MLD Snooping.
Configures IPv6 Snooping Querier and displays IPv6 
Snooping Querier information.
Configures special QoS treatment for traffic between 
iSCSI initiators and target systems.
Configures and displays link dependency information.
Configures and displays LLDP information.
Configures and displays Port channel information.
Monitors activity on specific target ports.
Configures and displays QoS information.
(continued)
Command Groups  78 
Page 79
Table 1-1. System Command Groups 
Command Group  Description
Radius
Spanning Tree
TACACS+
VLAN
802.1x
Data Center Technology Commands
Data Center Bridging 
Commands
FIP Snooping Commands
Priority Flow Control 
Commands
Layer 3 Commands
ARP (IPv4)
DHCP Server and Relay 
Agent (IPv4)
DHCPv6
DVMRP
IGMP
IGMP Proxy
IP Helper/DHCP Relay
 (Mcast)  Configures DVMRP operations.
 (Mcast)  Configures IGMP operations.
 (Mcast)  Manages IGMP Proxy on the system.
Configures and displays RADIUS information.
Configures and reports on Spanning Tree protocol.
Configures and displays TACACS+ information.
Configures VLANs and displays VLAN information.
Configures and displays commands related to 802.1x 
security protocol.
Data Center Bridging Exchange Protocol (DCBX) is used 
by DCB devices to exchange configuration information 
with directly connected peers. The protocol is also used to 
detect misconfiguration of the peer DCB devices and, 
optionally, for configuration of peer DCB devices.
FCoE Initialization Protocol (FIP) is used to perform the 
functions of FC_BB_E device discovery, initialization and 
maintenance. FIP snooping is a frame inspection method 
used by FIP Snooping Bridges to monitor FIP frames and 
apply policies based upon the L2 header information in 
those frames, following recommendations in Annex C of 
FC_BB_5 Rev 2.00
Provides priority-based flow control that can pause 
(inhibit transmission of) individual priorities within a 
single physical link.
Manages Address Resolution Protocol functions.
Manages DHCP/BOOTP operations on the system.
Configures IPv6 DHCP functions.
Configures relay of UDP packets.
(continued)
Command Groups  79 
Page 80
Table 1-1. System Command Groups 
Command Group  Description
IP Routing
IPv6 Multicast
IPv6 Routing
Loopback Interface
(IPv6)
Multicast
OSPF
OSPFv3
Router Discovery Protocol
(IPv4)
Routing Information 
Protocol
Tu n nel Int er f ace
Virtual Router 
Redundancy
Virtual Router 
Redundancy
Utility Commands
Auto-Install
Captive Portal
Clock
Command Line 
Configuration Scripting
Denial of Service
Line
Management ACL
 (IPv4)  Configures IP routing and addressing.
Manages IPv6 Multicasting on the system.
Configures IPv6 routing and addressing.
Manages Loopback configurations.
 (Mcast)  Manages Multicasting on the system.
 (IPv4)  Manages shortest path operations.
 (IPv6)  Manages IPv6 shortest path operations.
Manages router discovery operations.
Configures RIP activities.
 (IPv4)
 (IPv6)  Managing tunneling operations.
Controls virtual LAN routing.
 (IPv4)
Manages router redundancy on the system.
 (IPv4)
Automatically configures switch when a configuration file 
is not found.
Blocks clients from accessing network until user 
verification is established.
Configures the system clock.
Manages the switch configuration files.
Provides several Denial of Service options.
Configures the console, SSH, and remote Telnet 
connection.
Configures and displays management access-list 
information.
(continued)
Command Groups  80 
Page 81
Table 1-1. System Command Groups 
Command Group  Description
Password Management
PHY Diagnostics
RMON
Serviceability Tracing
sFlow
SNMP
SSH
Syslog
System Management
Tel n et S e r ve r
User Interface
Web S e r ve r
Provides password management.
Diagnoses and displays the interface status.
Can be configured through the CLI and displays RMON 
information.
Controls display of debug output to serial port or telnet 
console.
Configures sFlow monitoring.
Configures SNMP communities, traps and displays SNMP 
information.
Configures SSH authentication.
Manages and displays syslog messages.
Configures the switch clock, name and authorized users.
Configures Telnet service on the switch and displays 
Telne t i n f ormat i o n .
Describes user commands used for entering CLI 
commands.
Configures web-based access to the switch.
(continued)
Mode Types 
The tables on the following pages use these abbreviations for Command 
Mode names.
•  AAA — IAS User Configuration
•  APC — Administrative Profile Configuration
•  ARPA — ARP ACL Configuration
•  CC — Crypto Configuration
•  CP — Captive Portal Configuration
•C
•  CMC — Class-Map Configuration
•  DP — IP DHCP Pool Configuration
Command Groups  81 
Page 82
•  GC — Global Configuration
•  IC — Interface Configuration (reached via 
interface vlan xxx
•  IP — IP Access List Configuration
•  IR — Interface Range
•K
•K
•  L — Logging
•  LC — Line Configuration
•  LD — Link Dependency
•  MA — Management Access-level
•  MC — MST Configuration
•  MDC — Maintenance Domain Configuration
•  ML — MAC-List Configuration
•  MSC — Mail Server Configuration
•M
•  OG — OSPFv2 Global Configuration
•  PE — Privileged EXEC
•  PM — Policy Map Configuration
•  PCGC — Policy Map Global Configuration
•  PCMC — Policy Class Map Configuration
•R
•  RIP — Router RIP Configuration
•  RC — Router Configuration
•  ROSPF — Router Open Shortest Path First
•  ROSV3 — Router Open Shortest Path First Version 3
•  SG — Stack Global Configuration
•S
•S
•  TC — TACACS Configuration
 command)
Command Groups  82 
Page 83
•  TRC — Time Range Configuration
•  UE — User EXEC
•  VC — VLAN Configuration (reached via 
•  v6ACL — IPv6 Access List Configuration
•  v6CMC — IPv6 Class-Map Configuration
•  v6DP — IPv6 DHCP Pool Configuration
Layer 2 Commands 
AAA
vlan database
 command)
Command Description  Mode
aaa authentication dot1x 
default
aaa authentication enable
aaa authentication login
aaa authorization network 
default radius
aaa ias-user username
clear (IAS)
enable authentication
enable password
ip http authentication
ip https authentication
login authentication
password (aaa IAS User 
Configuration)
 aaa ias-users  Deletes all IAS users.  PE
Specifies an authentication method for 802.1x 
clients.
Defines authentication method lists for 
accessing higher privilege levels.
Defines login authentication.  GC
Enables the switch to accept VLAN assignment 
by the RADIUS server.
Configures IAS users and their attributes. Also 
changes the mode to aa user config mode.
Specifies the authentication method list when 
accessing a higher privilege level from a remote 
telnet or console.
Sets a local password to control access to the 
normal level.
Specifies authentication methods for http.  GC
Specifies authentication methods for https.  GC
Specifies the login authentication method list 
for a remote telnet or console.
Configures a password for a user.  AAA
GC
GC
GC
GC
LC
GC
LC
a
Command Groups  83 
Page 84
Command Description  Mode
password (Line 
Specifies a password on a line.   LC
Configuration)
password (User EXEC)
show aaa ias-users
Specifies a user password  UE
Displays configured IAS users and their 
PE
attributes.
show authentication 
methods
show users accounts
Shows information about authentication 
methods.
Displays information about the local user 
PE
PE
database.
show users login-history
Displays information about login histories of 
PE
users.
username
Establishes a username-based authentication 
GC 
system. Optionally allows the specification of an 
Administrative Profile for a local user.
username unlock
Transfers local user passwords between devices 
GC 
without having to know the passwords.
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81
Administrative Profiles 
a
Command  Description  Mode
admin-profile
description (Administrative 
Creates an administrative profile.  GC
Adds a description to an administrative profile. APC
Profile Config)
rule
show admin-profiles
show admin-profiles brief
Adds a rule to an administrative profile.  APC
Displays the administrative profiles.  PE
Lists the names of the administrative 
PE
profiles defined on the switch.
show cli modes
show users
Lists the names of all the CLI modes.  PE
Shows which administrative profiles have been 
PE 
assigned to local user accounts and to show 
which profiles are active for logged-in users.
Command Groups  84 
a
Page 85
Command  Description  Mode
username
Optionally allows the specification of an 
GC 
Administrative Profile for a local user.
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
ACL
Command  Description  Mode
access-list
deny | permit (IP ACL)
ip access-group
mac access-group
mac access-list extended
mac access-list extended 
rename
service-acl input
   Blocks Link Local Protocol Filtering (LLPF) 
show service-acl interface
show ip access-lists
show mac access-list
a. For the meaning of each Mode abbreviation, see 
Creates an Access Control List (ACL) that is 
identified by the parameter 
accesslistnumber.
The deny command denies traffic if the 
conditions defined in the deny statement are 
matched. The permit command allows traffic if 
the conditions defined in the permit statement 
are matched.
Attaches a specified access-control list to an 
interface.
Attaches a specific MAC Access Control List 
(ACL) to an interface in the in-bound 
direction.
Creates the MAC Access Control List (ACL) 
identified by the 
name
 parameter.
Renames the existing MAC Access Control List 
(ACL) name.
protocol(s) on a given port.
Displays the status of LLPF rules configured on 
a particular port or on all the ports.
Displays an Access Control List (ACL) and all 
of the rules that are defined for the ACL.
Displays a MAC access list and all of the rules 
that are defined for the ACL.
Mode Types
on page 81.
GC
ML
GC or 
IC
GC or 
IC
GC
GC
IC
PE
PE
PE
a
Command Groups  85 
Page 86
Address Table 
Command  Description  Mode
clear mac address-table
mac address-table agingtime
mac address-table multicast 
forbidden address
mac address-table static vlan
mac address-table static vlan
port security
port security max
show mac address-table
show mac address-table 
address
show mac address-table 
count
show mac address-table 
dynamic
show mac address-table 
interface
show mac address-table 
multicast
show mac address-table 
static
show mac address-table vlan
Removes any learned entries from the 
forwarding database.
Sets the address table aging time.  GC
Forbids adding a specific multicast address to 
specific ports.
Registers MAC-layer multicast addresses to the 
bridge forwarding table, and adds static ports to 
the group.
Adds a static MAC-layer station source address 
to the bridge table. 
Disables new address learning on an interface.  IC
Configures the maximum addresses that can be 
learned on the port while the port is in port 
security mode.
Displays dynamically created entries in the 
bridge-forwarding database.
Displays all entries in the bridge-forwarding 
database for the specified MAC address.
Displays the number of addresses present in the 
Forwardin g Databa se.
Displays all entries in the bridge-forwarding 
database.
Displays the mac forwarding table entries for a 
specific interface.
Displays Multicast MAC address table 
information.
Displays statically created entries in the bridgeforwarding database.
Displays all entries in the bridge-forwarding 
database for the specified VLAN.
PE
IC
IC
IC
IC
PE
UE or 
PE
PE
UE or 
PE
UE or 
PE
PE
PE
UE or 
PE
a
Command Groups  86 
Page 87
Command  Description  Mode
show ports security
show ports security 
addresses
Displays the port-lock status.  PE
Displays current dynamic addresses in locked 
PE 
ports.
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
on page 81.
Auto-VoIP 
Command  Description  Mode
switchport voice detect auto
show switchport voice
Enables the VoIP Profile on all the interfaces of 
the switch.
Displays the status of auto-voip on an interface 
GC or 
IC
PE 
or all interfaces.
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
CDP Interoperability 
Command  Description  Mode
clear isdp counters
clear isdp table
isdp advertise-v2
isdp enable
isdp holdtime
isdp timer
show isdp
show isdp interface
show isdp entry
show isdp neighbors
Clears the ISDP counters.  PE
Clears entries in the ISDP table.  PE
Enables the sending of ISDP version 2 packets 
GC 
from the device.
Enables ISDP on the switch.  GC or 
IC
Configures the hold time for ISDP packets that 
GC 
the switch transmits.
Sets period of time between sending new ISDP 
GC 
packets.
Displays global ISDP settings.  PE
Displays ISDP settings for the specified 
PE 
interface.
Displays ISDP entries.  PE
Displays the list of neighboring devices.  PE
a
a
Command Groups  87 
Page 88
Command  Description  Mode
show isdp traffic
Displays ISDP statistics.  PE
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
DHCP L2 Relay 
Command  Description  Mode
dhcp l2relay (Global 
Configuration)
dhcp l2relay circuit-id
Enables the Layer 2 DHCP Relay agent for an 
interface or globally.
Enables user to set the DHCP Option 82 
GC or 
IC
GC 
Circuit ID for a VLAN.
dhcp l2relay remote-id
Enables user to set the DHCP Option 82 
GC 
Remote ID for a VLAN.
dhcp l2relay vlan
Enables the L2 DHCP Relay agent for a set of 
GC 
VLANs.
dhcp l2relay trust
Configures an interface to trust a received 
IC 
DHCP Option 82.
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
DHCP Management Interface 
Command  Description  Mode
release dhcp
renew dhcp
debug dhcp packet
show dhcp lease
Forces the DHCPv4 client to release a leased 
address.
Forces the DHCP client to immediately renew 
an IPv4 address lane.
Displays debug information about DHCPv4 
client activities and traces DHCP v4 packets to 
and from the local DHCPv4 client.
Displays IPv4 addresses leased from a DHCP 
server.
PE
PE
PE
PE
a
a
Command Groups  88 
Page 89
a. For the meaning of each Mode abbreviation, see 
DHCP Snooping 
Mode Types
 on page 81.
Command  Description  Mode
clear ip dhcp snooping 
Clears all DHCP Snooping entries.  PE
binding
clear ip dhcp snooping 
Clears all DHCP Snooping statistics.  PE
statistics
ip dhcp snooping
ip dhcp snooping binding
ip dhcp snooping database
Enables DHCP snooping globally or on a 
specific VLAN.
GC or 
IC
Configures a static DHCP Snooping binding.  GC
Configures the persistent location of the DHCP 
GC 
snooping database.
ip dhcp snooping database 
write-delay
Configures the interval in seconds at which the 
DHCP Snooping database will be stored in 
GC
persistent storage.
ip dhcp snooping limit
Controls the maximum rate of DHCP 
IC 
messages.
ip dhcp snooping log-invalid
Enables logging of DHCP messages filtered by 
IC 
the DHCP Snooping application.
ip dhcp snooping trust
ip dhcp snooping verify macaddress
Configure a port as trusted for DHCP snooping. IC
Enables the verification of the source MAC 
GC 
address with the client MAC address in the 
received DHCP message.
show ip dhcp snooping
Displays the DHCP snooping global and per 
PE 
port configuration.
show ip dhcp snooping 
Displays the DHCP snooping binding entries.  PE
binding
show ip dhcp snooping 
database
show ip dhcp snooping 
interfaces
Displays the DHCP snooping configuration 
related to the database persistence.
Displays the DHCP Snooping status of the 
interfaces.
PE
PE
a
Command Groups  89 
Page 90
Command  Description  Mode
show ip dhcp snooping 
statistics
a. For the meaning of each Mode abbreviation, see 
Displays the DHCP snooping filtration 
statistics.
Mode Types
 on page 81.
PE
Dynamic ARP Inspection 
a
Command  Description  Mode
arp access-list
clear ip arp inspection 
statistics
ip arp inspection filter
Creates an ARP ACL.   GC
Resets the statistics for Dynamic ARP 
PE 
Inspection on all VLANs.
Configures the ARP ACL to be used for a single 
GC 
VLAN or a range of VLANs to filter invalid ARP 
packets.
ip arp inspection limit
Configures the rate limit and burst interval 
IC 
values for an interface.
ip arp inspection trust
Configures an interface as trusted for Dynamic 
IC 
ARP Inspection.
ip arp inspection validate
Enables additional validation checks like source 
GC 
MAC address validation, destination MAC 
address validation or IP address validation on 
the received ARP packets.
ip arp inspection vlan
Enables Dynamic ARP Inspection on a single 
GC 
VLAN or a range of VLANs.
permit ip host mac host
Configures a rule for a valid IP address and 
ARPA 
MAC address combination used in ARP packet 
validation.
show arp access-list
Displays the configured ARP ACLs with the 
PE 
rules.
show ip arp inspection
Displays the Dynamic ARP Inspection 
PE 
configuration.
show ip arp inspection 
interfaces
Displays the Dynamic ARP Inspection 
configuration on all the DAI enabled interfaces.
PE
a
Command Groups  90 
Page 91
Command  Description  Mode
show ip arp inspection vlan
Displays the Dynamic ARP Inspection 
PE 
configuration on all the VLANs in the given 
VLAN range.
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
E-mail Alerting 
Command  Description  Mode
logging email
logging email urgent
logging traps
logging email message-type 
to-addr
logging email from-addr
logging email message-type 
subject
logging email logtime
logging email test messagetype
show logging email statistics
clear logging email statistics
security
mail-server ip-address | 
hostname
Enables e-mail alerting and sets the lowest 
GC 
severity level for which log messages are emailed.
Sets the lowest severity level at which log 
GC 
messages are e-mailed in an urgent manner.
Sets the lowest severity level at which SNMP 
GC 
traps are logged.
Configures the To address field of the e-mail.  GC
Configures the From address of the e-mail.  GC
Configures the subject.  GC
Configures the value of how frequently the 
GC 
queued messages are sent.
Tests whether or not an e-mail is being sent to 
GC 
an SMTP server.
Displays information on how many e-mails are 
PE 
sent, how many e-mails failed, when the last email was sent, how long it has been since the 
last e-mail was sent, how long it has been since 
the e-mail changed to disabled mode.
Clears the e-mail alerting statistics.  GC
Sets the e-mail alerting security protocol.  MSC
Configures the SMTP server IP address and 
GC 
changes the mode to Mail Server Configuration 
Mode.
a
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Command  Description  Mode
port (Mail Server 
Configuration Mode)
username (Mail Server 
Configuration Mode)
password (Mail Server 
Configuration Mode)
show mail-server
Configures the TCP port to use for 
communication with the SMTP servers.
Configures the username required by the 
authentication.
Configures the password required to 
authenticate to the e-mail server.
Displays the configuration of all the mail servers 
MSC
MSC
MSC
PE 
or a particular mail server.
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
Ethernet Configuration 
a
Command  Description  Mode
clear counters
description
duplex
Clears statistics on an interface.  PE
Adds a description to an interface.  IC
Configures the full/half duplex operation of a 
IC 
given Ethernet interface when not using autonegotiation.
flowcontrol
interface
   Enters the interface configuration mode to 
interface range
Configures the flow control on a given interface. GC
GC or 
configure parameters for an interface.
Enters the interface configuration mode to 
execute a command on multiple ports at the 
IC
GC, 
IC, IR 
same time.
show interfaces advertise
Displays information about auto negotiation 
PE 
advertisement.
show interfaces 
configuration
show interfaces counters
show interfaces description
Displays the configuration for all configured 
UE 
interfaces.
Displays traffic seen by the physical interface.  UE
Displays the description for all configured 
UE 
interfaces.
show interfaces detail
Displays the detail for all configured interfaces. UE
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Command  Description  Mode
show interfaces status
show statistics
Displays the status for all configured interfaces. UE
Displays statistics for one port or for the entire 
PE 
switch.
show statistics switchport
Displays detailed statistics for a specific port or 
PE 
for the entire switch.
show storm-control
shutdown
speed
Displays the storm control configuration.  PE
Disables interfaces.   IC
Configures the speed of a given Ethernet 
IC 
interface when not using auto-negotiation.
storm-control broadcast
storm-control multicast
Enables Broadcast storm control.  IC
Enables the switch to count Multicast packets 
IC 
together with Broadcast packets.
storm-control unicast
switchport protected
switchport protected name
show switchport protected
Enables Unicast storm control.  IC
Sets the port to Protected mode.  IC
Configures a name for a protected group.  GC
Displays protected group/port information.  PE
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
Ethernet CFM 
Command  Description  Mode
ethernet cfm domain
service
ethernet cfm cc level
ethernet cfm mep level
Enters into maintenance domain config mode 
GC 
for an existing domain. Use the optional level   
parameter to create a domain and enter into 
maintenance domain config mode.
Associates a VLAN with a maintenance domain. MDC
Initiates sending continuity checks (CCMs) at 
GC 
the specified interval and level on a VLAN 
monitored by an existing domain.
Creates a Maintenance End Point (MEP) on an 
IC 
interface at the specified level and direction.
Command Groups  93 
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Page 94
Command  Description  Mode
ethernet cfm mep enable
Enables a MEP at the specified level and 
IC 
direction. 
ethernet cfm mep active
Activates a MEP at the specified level and 
IC 
direction. 
ethernet cfm mep archivehold-time
ethernet cfm mip level
Maintains internal information on a missing 
MEP. 
Creates a Maintenance Intermediate Point 
IC
IC 
(MIP) at the specified level.
ping ethernet cfm
Generates a loopback message (LBM) from  
PE
the configured MEP.
traceroute ethernet cfm
show ethernet cfm errors
show ethernet cfm domain
show ethernet cfm 
maintenance-points local
show ethernet cfm 
maintenance-points remote
show ethernet cfm statistics
debug cfm
Generates a link trace message (LTM) from the 
PE 
configured MEP.
Displays the cfm errors.  PE
Displays the configured parameters in a 
PE 
maintenance domain.
Displays the configured local maintenance 
PE 
points.
Displays the configured remote maintenance 
PE 
points.
Displays the CFM statistics.  PE
Enables CFM debugging.  PE
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
GVRP 
Command  Description  Mode
clear gvrp statistics
garp timer
gvrp enable (global)
gvrp enable (interface)
gvrp registration-forbid
Clears all the GVRP statistics information.  PE
Adjusts the GARP application join, leave, and 
IC 
leaveall GARP timer values.
Enables GVRP globally.   GC
Enables GVRP on an interface.  IC
De-registers all VLANs, and prevents dynamic 
IC 
VLAN registration on the port.
Command Groups  94 
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Page 95
Command  Description  Mode
gvrp vlan-creation-forbid
show gvrp configuration
Enables or disables dynamic VLAN creation.   IC
Displays GVRP configuration information,
PE
including timer values, whether GVRP and 
dynamic VLAN creation is enabled, and 
which ports are running GVRP.
show gvrp error-statistics
show gvrp statistics
Displays GVRP error statistics.  UE
Displays GVRP statistics.  UE
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
IGMP Snooping 
Command  Description  Mode
ip igmp snooping
show ip igmp snooping 
groups
show ip igmp snooping 
mrouter
show ip igmp snooping
ip igmp snooping vlan 
immediate-leave
ip igmp snooping vlan 
groupmembership-interval
ip igmp snooping vlan lastmember-query-interval
ip igmp snooping vlan 
mcrtrexpiretime
ip igmp snooping reportsuppression
In Global Config mode, Enables Internet 
Group Management Protocol (IGMP) 
snooping.
Displays Multicast groups learned by IGMP 
snooping.
Displays information on dynamically learned 
Multicast router interfaces.
In VLAN Config mode, enables IGMP snooping 
on a particular VLAN or on all interfaces 
participating in a VLAN.
Enables or disables IGMP Snooping fast-leave 
mode on a selected VLAN.
Sets the IGMP Group Membership Interval 
time on a VLAN.
Sets the IGMP Maximum Response time on a 
particular VLAN.
Sets the Multicast Router Present Expiration 
time.
Enables IGMP report suppression on a 
specific VLAN.
GC
UE
PE
VC
VC
VC
VC
VC
GC
a
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Command  Description  Mode
ip igmp snooping 
unregistered floodall
ip igmp snooping vlan 
mrouter
a. For the meaning of each Mode abbreviation, see 
Enables flooding of unregistered multicast 
traffic to all ports in the VLAN.
Statically configures a port as connected to a 
multicast router for a specified VLAN.
Mode Types
 on page 81.
GC
GC
IGMP Snooping Querier 
a
Command  Description  Mode
ip igmp snooping querier
Enables/disables IGMP Snooping Querier on 
the system (Global Configuration mode) or on 
GC, 
VC 
a VLAN.
ip igmp snooping querier 
election participate
Enables the Snooping Querier to participate in 
the Querier Election process when it discovers 
VC
the presence of another Querier in the VLAN.
ip igmp snooping querier 
Sets the IGMP Querier Query Interval time.  GC
query-interval
ip igmp snooping querier 
Sets the IGMP Querier timer expiration period. GC
timer expiry
ip igmp snooping querier 
version
show ip igmp snooping 
Sets the IGMP version of the query that the 
GC 
snooping switch is going to send periodically.
Displays IGMP Snooping Querier information. PE
querier
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
IP Addressing 
Command  Description  Mode
clear host
clear ip address-conflictdetect
ip address (Out-of-Band)
Deletes entries from the host name-to-address 
PE 
cache.
Clears the address conflict detection status in 
PE 
the switch.
Sets an IP address for the out-of-band interface. IC
a
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Command  Description  Mode
ip address-conflict-detect 
run
Triggers the switch to run active address conflict 
detection by sending gratuitous ARP packets for 
GC
IPv4 addresses on the switch.
ip address dhcp (Interface 
Config)
ip default-gateway
ip domain-lookup
Acquires an IP address on an interface from the 
IC 
DHCP server.
Defines a default gateway (router).  GC
Enables IP DNS-based host name-to-address 
GC 
translation.
ip domain-name
Defines a default domain name to complete 
GC 
unqualified host names.
ip host
Configures static host name-to-address 
GC 
mapping in the host cache.
ip name-server
ipv6 address (Interface 
Config)
ipv6 address (OOB Port)
ipv6 address dhcp
Configures available name servers.  GC
Sets the IPv6 address of the management 
IC 
interface.
Sets the IPv6 prefix on the out-of-band port.  IC
Enables the DHCPv6 client on an IPv6 
IC 
interface. 
ipv6 enable (Interface 
Enables IPv6 on the management interface.  GC
Config)
ipv6 enable (OOB Config)
Enables IPv6 operation on the out-of-band 
IC 
interface.
ipv6 gateway (OOB Config)
show hosts
Configures the address of the IPv6 gateway.  IC
Displays the default domain name, a list of 
UE 
name server hosts, static and cached list of host 
names and addresses.
show ip address-conflict
show ip helper-address
show ipv6 dhcp interface 
out-of-band statistics
Displays the status information corresponding 
to the last detected address conflict.
UE or 
PE
Displays the ip helper addresses configuration.  PE
Displays IPv6 DHCP statistics for the out-of-
PE 
band interface.
a
Command Groups  97 
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Command  Description  Mode
show ipv6 interface out-ofband
a. For the meaning of each Mode abbreviation, see 
Displays the IPv6 out-of-band port 
configuration.
Mode Types
 on page 81.
PE
IPv6 ACL 
a
Command  Description  Mode
deny | permit (IPv6 
ACL)
ipv6 access-list
Creates a new rule for the current IPv6 access 
list.
Creates an IPv6 Access Control List (ACL) 
v6ACL
GC 
consisting of classification fields defined for the 
IP header of an IPv6 frame.
ipv6 access-list rename
ipv6 traffic-filter
show ipv6 access-lists
Changes the name of an IPv6 ACL.  GC
Attaches a specific IPv6 ACL to an interface or 
associates it with a VLAN ID in a given 
direction.
Displays an IPv6 access list (and the rules 
GC
IC
PE 
defined for it).
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
IPv6 MLD Snooping 
Command  Description  Mode
ipv6 mld snooping vlan 
immediate-leave
ipv6 mld snooping vlan 
groupmembership-interval
ipv6 mld snooping vlan lastlistener-query-interval
ipv6 mld snooping listenermessage-suppression
Enables or disables MLD Snooping immediateleave admin mode on a selected interface or 
VLAN.
Sets the MLD Group Membership Interval 
time on a VLAN or interface.
Sets the MLD Maximum Response time for an 
interface or VLAN.
Enables MLD listener message suppression on a 
specific VLAN. 
VC
VC
IC or
VC
GC
a
a
Command Groups  98 
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Command  Description  Mode
ipv6 mld snooping vlan 
mrouter
ipv6 mld snooping (Global)
Statically configures a port as connected to 
a multicast router for a specified VLAN. 
Enables MLD Snooping on the system (Global 
GC
GC
Config Mode).
show ipv6 mld snooping
show ipv6 mld snooping 
groups
Displays MLD Snooping information.  PE
Displays the MLD Snooping entries in the 
PE
MFDB table.
a
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
IPv6 MLD Snooping Querier 
Command  Description  Mode
ipv6 mld snooping querier
ipv6 mld snooping querier 
address
ipv6 mld snooping querier 
election participate
Enables MLD Snooping Querier on the system 
or on a VLAN.
Sets the global MLD Snooping Querier address 
on the system or on a VLAN.
Enables the Snooping Querier to participate in 
the Querier Election process when it discovers 
GC or
VC
GC or
VC
VC
the presence of another Querier in the VLAN.
ipv6 mld snooping querier 
Sets the MLD Querier Query Interval time.  GC
query-interval
ipv6 mld snooping querier 
Sets the MLD Querier timer expiration period. GC
timer expiry
show ipv6 mld snooping 
Displays MLD Snooping Querier information.  PE
querier
a. For the meaning of each Mode abbreviation, see 
Mode Types
 on page 81.
IP Source Guard 
Command  Description  Mode
ip verify source
Enables filtering of IP packets matching the 
source IP address.
IC
a
a
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Command  Description  Mode
ip verify source port-security
Enables filtering of IP packets matching the 
IC
source IP address and the source MAC address.
ip verify binding
show ip verify interface
show ip verify source 
interface
show ip source binding
a. For the meaning of each Mode abbreviation, see 
Configures static bindings.  GC
Displays the IPSG interface configuration.  PE
Displays the bindings configured on a particular 
PE
interface.
Displays all bindings (static and dynamic).  PE
Mode Types
 on page 81.
iSCSI Optimization 
a
Link Dependency 
Command  Description  Mode
iscsi aging time
iscsi cos
iscsi enable
iscsi target port
show iscsi
show iscsi sessions
a. For the meaning of each Mode abbreviation, see 
Command  Description  Mode
action
link-dependency group
Sets aging time for iSCSI sessions.  GC
Sets the quality of service profile that will be 
applied to iSCSI flows.
Enables Global Configuration mode command 
globally enables iSCSI awareness.
Configures an iSCSI target port (optionally 
configures target port address and name).
Displays the iSCSI settings.  PE
Displays the iSCSI sessions.  PE
Mode Types
 on page 81.
Indicates if the link-dependency group should 
mirror or invert the status of the depended on 
interfaces.
   Enters the link-dependency mode to configure 
a link-dependency group.
GC
GC
GC
LD
GC
a
a
Command Groups  100