Dell PowerSwitch S5048F-ON User Manual

Dell EMC Networking OS Configuration Guide for the S5048F–ON System

9.14.2.4

Notes, cautions, and warnings

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

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

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

© 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

2019 - 11

Rev. A00

Contents

1 About this Guide..........................................................................................................................	31
Audience................................................................................................................................................................................	31
Conventions..........................................................................................................................................................................	31
Related Documents..............................................................................................................................................................	31
2 Configuration Fundamentals.......................................................................................................	32
Accessing the Command Line............................................................................................................................................	32
CLI Modes............................................................................................................................................................................	32
Navigating CLI Modes...................................................................................................................................................	34
The do Command................................................................................................................................................................	36
Undoing Commands............................................................................................................................................................	37
Obtaining Help......................................................................................................................................................................	37
Entering and Editing Commands.......................................................................................................................................	38
Command History................................................................................................................................................................	38
Filtering show Command Outputs....................................................................................................................................	39
Multiple Users in Configuration Mode..............................................................................................................................	40
Configuring alias command................................................................................................................................................	40
Viewing alias configuration............................................................................................................................................	41
3 Getting Started..........................................................................................................................	42
Console Access....................................................................................................................................................................	42
Serial Console.................................................................................................................................................................	42
Micro USB-B Access.....................................................................................................................................................	43
Default Configuration..........................................................................................................................................................	44
Configuring a Host Name...................................................................................................................................................	44
Accessing the System Remotely.......................................................................................................................................	44
Configure the Management Port IP Address.............................................................................................................	44
Configure a Management Route.................................................................................................................................	45
Configuring a Username and Password.....................................................................................................................	45
Configuring the Enable Password.....................................................................................................................................	45
Configuration File Management........................................................................................................................................	46
Copy Files to and from the System.............................................................................................................................	46
Mounting an NFS File System......................................................................................................................................	47
Save the Running-Configuration.................................................................................................................................	49
Configure the Overload Bit for a Startup Scenario...................................................................................................	49
Viewing Files...................................................................................................................................................................	49
Managing the File System...................................................................................................................................................	51
View Command History.......................................................................................................................................................	51
Upgrading Dell EMC Networking OS................................................................................................................................	52
Using HTTP for File Transfers...........................................................................................................................................	52
Verify Software Images Before Installation......................................................................................................................	53
4 Management..............................................................................................................................	54
Configuring Privilege Levels...............................................................................................................................................	54

Contents 3

Removing a Command from EXEC Mode..................................................................................................................	55
Moving a Command from EXEC Privilege Mode to EXEC Mode...........................................................................	55
Allowing Access to CONFIGURATION Mode Commands.......................................................................................	55
Allowing Access to Different Modes...........................................................................................................................	55
Applying a Privilege Level to a Username...................................................................................................................	56
Applying a Privilege Level to a Terminal Line.............................................................................................................	56
Configuring Logging............................................................................................................................................................	57
Audit and Security Logs................................................................................................................................................	57
Configuring Logging Format ................................................................................................................................	58
Setting Up a Secure Connection to a Syslog Server.......................................................................................	59
Log Messages in the Internal Buffer.................................................................................................................................	60
Disabling System Logging..................................................................................................................................................	60
Sending System Messages to a Syslog Server...............................................................................................................	60
Configuring a UNIX System as a Syslog Server........................................................................................................	60
Track Login Activity.............................................................................................................................................................	61
Restrictions for Tracking Login Activity......................................................................................................................	61
Configuring Login Activity Tracking.............................................................................................................................	61
Display Login Statistics..................................................................................................................................................	61
Limit Concurrent Login Sessions.......................................................................................................................................	63
Restrictions for Limiting the Number of Concurrent Sessions................................................................................	63
Configuring Concurrent Session Limit........................................................................................................................	63
Enabling the System to Clear Existing Sessions........................................................................................................	63
Enabling Secured CLI Mode...............................................................................................................................................	64
Changing System Logging Settings..................................................................................................................................	64
Display the Logging Buffer and the Logging Configuration...........................................................................................	65
Configuring a UNIX Logging Facility Level.......................................................................................................................	68
Synchronizing Log Messages............................................................................................................................................	68
Enabling Timestamp on Syslog Messages.......................................................................................................................	69
File Transfer Services..........................................................................................................................................................	70
Enabling the FTP Server...............................................................................................................................................	70
Configuring FTP Server Parameters............................................................................................................................	71
Configuring FTP Client Parameters.............................................................................................................................	71
Terminal Lines......................................................................................................................................................................	72
Denying and Permitting Access to a Terminal Line...................................................................................................	72
Configuring Login Authentication for Terminal Lines................................................................................................	73
Setting Timeout for EXEC Privilege Mode.......................................................................................................................	73
Using Telnet to get to Another Network Device.............................................................................................................	74
Lock CONFIGURATION Mode...........................................................................................................................................	74
Reloading the system..........................................................................................................................................................	75
Restoring the Factory Default Settings............................................................................................................................	76
Restoring Factory Default Environment Variables....................................................................................................	76
5 802.1X.......................................................................................................................................	78
Port-Authentication Process.............................................................................................................................................	79
EAP over RADIUS..........................................................................................................................................................	80
Configuring 802.1X..............................................................................................................................................................	80
Important Points to Remember..........................................................................................................................................	81
Enabling 802.1X....................................................................................................................................................................	81
Configuring dot1x Profile ...................................................................................................................................................	82
Configuring the Static MAB and MAB Profile ................................................................................................................	83

4 Contents

Configuring Critical VLAN .................................................................................................................................................	84
Configuring MAC addresses for a do1x Profile................................................................................................................	84
Configuring Request Identity Re-Transmissions.............................................................................................................	85
Configuring a Quiet Period after a Failed Authentication.........................................................................................	85
Forcibly Authorizing or Unauthorizing a Port...................................................................................................................	86
Re-Authenticating a Port...................................................................................................................................................	86
Configuring Timeouts..........................................................................................................................................................	87
Configuring Dynamic VLAN Assignment with Port Authentication..............................................................................	88
Guest and Authentication-Fail VLANs..............................................................................................................................	89
Configuring a Guest VLAN...........................................................................................................................................	90
Configuring an Authentication-Fail VLAN..................................................................................................................	90
6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)..........................	92
Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................................................	92
Guidelines for Configuring ACL VLAN Groups................................................................................................................	92
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters...................................................	93
Configuring ACL VLAN Groups...................................................................................................................................	93
Configuring FP Blocks for VLAN Parameters............................................................................................................	94
Viewing CAM Usage...........................................................................................................................................................	94
Allocating FP Blocks for VLAN Processes.......................................................................................................................	97
ACL Optimization to Increase Number of Supported IPv4 ACLs..................................................................................	97
Optimizing ACL for More Number of IPv4 ACL Rules..............................................................................................	97
7 Access Control Lists (ACLs)........................................................................................................	99
IP Access Control Lists (ACLs)........................................................................................................................................	100
CAM Usage...................................................................................................................................................................	100
Implementing ACLs on Dell EMC Networking OS....................................................................................................	101
Configure ACL Range Profiles..........................................................................................................................................	102
Important Points to Remember.......................................................................................................................................	103
Configuration Task List for Route Maps...................................................................................................................	103
Configuring Match Routes..........................................................................................................................................	105
Configuring Set Conditions.........................................................................................................................................	106
Configure a Route Map for Route Redistribution....................................................................................................	107
Configure a Route Map for Route Tagging..............................................................................................................	108
Continue Clause...........................................................................................................................................................	108
IP Fragment Handling........................................................................................................................................................	108
IP Fragments ACL Examples......................................................................................................................................	109
Layer 4 ACL Rules Examples......................................................................................................................................	109
Configure a Standard IP ACL............................................................................................................................................	110
Configuring a Standard IP ACL Filter..........................................................................................................................	111
Configure an Extended IP ACL..........................................................................................................................................	111
Configuring Filters with a Sequence Number............................................................................................................	111
Configuring Filters Without a Sequence Number.....................................................................................................	115
Configure Layer 2 and Layer 3 ACLs...............................................................................................................................	115
Assign an IP ACL to an Interface......................................................................................................................................	116
Applying an IP ACL.............................................................................................................................................................	116
Counting ACL Hits........................................................................................................................................................	117
Configure Ingress ACLs......................................................................................................................................................	117
Configure Egress ACLs......................................................................................................................................................	117

Contents 5

Applying Egress Layer 3 ACLs (Control-Plane)........................................................................................................	118
Configuring UDF ACL.........................................................................................................................................................	119
IP Prefix Lists......................................................................................................................................................................	122
Configuration Task List for Prefix Lists.....................................................................................................................	122
ACL Resequencing.............................................................................................................................................................	125
Resequencing an ACL or Prefix List..........................................................................................................................	126
Route Maps.........................................................................................................................................................................	127
8 Bidirectional Forwarding Detection (BFD)...................................................................................	128
How BFD Works.................................................................................................................................................................	128
BFD Packet Format.....................................................................................................................................................	129
BFD Sessions................................................................................................................................................................	130
BFD Three-Way Handshake........................................................................................................................................	131
Session State Changes................................................................................................................................................	132
Important Points to Remember........................................................................................................................................	132
Configure BFD....................................................................................................................................................................	132
Configure BFD for Physical Ports..............................................................................................................................	133
Configure BFD for Static Routes...............................................................................................................................	134
Configure BFD for OSPF............................................................................................................................................	136
Configure BFD for OSPFv3.........................................................................................................................................	141
Configure BFD for IS-IS...............................................................................................................................................	144
Configure BFD for BGP...............................................................................................................................................	145
Configure BFD for VRRP.............................................................................................................................................	151
Configuring Protocol Liveness....................................................................................................................................	154
Troubleshooting BFD...................................................................................................................................................	154
9 Border Gateway Protocol (BGP)................................................................................................	155
BGP IP version 4 (BGPv4) Overview.............................................................................................................................	155
BGP Autonomous Systems........................................................................................................................................	155
AS4 Number Representation......................................................................................................................................	157
Four-Byte AS Numbers...............................................................................................................................................	159
BGP router ID...............................................................................................................................................................	159
Sessions and Peers......................................................................................................................................................	159
Establish a Session.......................................................................................................................................................	159
BGP Attributes for selecting Best Path....................................................................................................................	160
Multiprotocol BGP.......................................................................................................................................................	165
BGP global and address family configuration...........................................................................................................	166
Implement BGP with Dell EMC Networking OS.......................................................................................................	167
Configuration Information...........................................................................................................................................	170
Basic BGP configuration tasks.........................................................................................................................................	170
Prerequisite for configuring a BGP network.............................................................................................................	170
Restrictions...................................................................................................................................................................	170
Enabling BGP................................................................................................................................................................	170
Enabling four-byte autonomous system numbers...................................................................................................	172
Changing a BGP router ID...........................................................................................................................................	173
Configuring AS4 Number Representations...............................................................................................................	173
Configuring a BGP peer...............................................................................................................................................	174
Example-Configuring BGP routing between peers..................................................................................................	175
BGP peer group............................................................................................................................................................	176

6 Contents

Advanced BGP configuration tasks.................................................................................................................................	183
Route-refresh and Soft-reconfiguration...................................................................................................................	183
Aggregating Routes.....................................................................................................................................................	185
Filtering BGP.................................................................................................................................................................	187
Configuring BGP Fast Fall-Over.................................................................................................................................	192
Configuring Passive Peering.......................................................................................................................................	193
Enabling Graceful Restart...........................................................................................................................................	194
Redistributing Routes..................................................................................................................................................	195
Enabling Additional Paths............................................................................................................................................	195
Configuring IP Community Lists.................................................................................................................................	196
Configuring an IP Extended Community List............................................................................................................	197
Configure BGP attributes...........................................................................................................................................	198
Enabling Multipath.......................................................................................................................................................	201
Route Reflectors.........................................................................................................................................................	202
Enabling Route Flap Dampening................................................................................................................................	203
Changing BGP keepalive and hold timers................................................................................................................	205
Setting the extended timer........................................................................................................................................	205
Enabling or disabling BGP neighbors........................................................................................................................	206
Route Map Continue...................................................................................................................................................	207
Configuring BGP Confederations..............................................................................................................................	207
Configuring a BGP VRF address family....................................................................................................................	208
Maintaining Existing AS Numbers During an AS Migration....................................................................................	209
Allowing an AS Number to Appear in its Own AS Path...........................................................................................	210
Enabling MBGP Configurations...................................................................................................................................	211
MBGP support for IPv6...............................................................................................................................................	211
Configuring IPv6 MBGP between peers....................................................................................................................	211
Example-Configuring IPv4 and IPv6 neighbors........................................................................................................	212
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor.............................................	214
BGP Regular Expression Optimization......................................................................................................................	215
Debugging BGP............................................................................................................................................................	216
10 Content Addressable Memory (CAM)........................................................................................	218
CAM Allocation...................................................................................................................................................................	218
Test CAM Usage...............................................................................................................................................................	220
View CAM-ACL Settings..................................................................................................................................................	220
View CAM Usage...............................................................................................................................................................	221
CAM Optimization.............................................................................................................................................................	222
Troubleshoot CAM Profiling.............................................................................................................................................	222
QoS CAM Region Limitation......................................................................................................................................	222
Syslog Error When the Table is Full..........................................................................................................................	222
Syslog Warning Upon 90 Percent Utilization of CAM............................................................................................	223
Syslog Warning for Discrepancies Between Configured Extended Prefixes.......................................................	223
Unified Forwarding Table (UFT) Modes.........................................................................................................................	223
Configuring UFT Modes.............................................................................................................................................	223
11 Control Plane Policing (CoPP)..................................................................................................	225
Configure Control Plane Policing.....................................................................................................................................	226
Configuring CoPP for Protocols................................................................................................................................	227
Configuring CoPP for CPU Queues..........................................................................................................................	228

Contents 7

Protocol to CPU Queue Mapping.............................................................................................................................	229
Configuring Protocol to CPU Queue Mapping........................................................................................................	230
Displaying CoPP Configuration .................................................................................................................................	230
12 Data Center Bridging (DCB).....................................................................................................	233
Ethernet Enhancements in Data Center Bridging.........................................................................................................	233
Priority-Based Flow Control.......................................................................................................................................	234
Enhanced Transmission Selection.............................................................................................................................	235
Data Center Bridging Exchange Protocol (DCBx)..................................................................................................	236
Data Center Bridging in a Traffic Flow.....................................................................................................................	237
Buffer Organization.....................................................................................................................................................	237
Enabling Data Center Bridging........................................................................................................................................	240
DCB Maps and its Attributes.....................................................................................................................................	240
Data Center Bridging: Default Configuration..................................................................................................................	241
Configuring Priority-Based Flow Control........................................................................................................................	241
Configuring Lossless Queues.....................................................................................................................................	242
Configuring PFC in a DCB Map.......................................................................................................................................	243
Applying a DCB Map on a Port........................................................................................................................................	244
Configuring PFC without a DCB Map............................................................................................................................	245
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................................................	246
Shared headroom for lossless or PFC packets..............................................................................................................	247
Configuring Shared Head Room Buffer....................................................................................................................	249
Viewing Shared Head Room Usage..........................................................................................................................	249
Monitoring Buffer Statistics for Tracking Purposes...............................................................................................	249
Behavior of Tagged Packets...........................................................................................................................................	250
Configuration Example for DSCP and PFC Priorities...................................................................................................	250
SNMP Support for PFC and Buffer Statistics Tracking...............................................................................................	251
Performing PFC Using DSCP Bits Instead of 802.1p Bits............................................................................................	251
PFC and ETS Configuration Examples...........................................................................................................................	253
Using PFC to Manage Converged Ethernet Traffic.....................................................................................................	253
Operations on Untagged Packets...................................................................................................................................	253
Generation of PFC for a Priority for Untagged Packets..............................................................................................	253
Configure Enhanced Transmission Selection................................................................................................................	253
Creating an ETS Priority Group.................................................................................................................................	253
ETS Operation with DCBx..........................................................................................................................................	254
Configuring ETS in a DCB Map.................................................................................................................................	255
Hierarchical Scheduling in ETS Output Policies............................................................................................................	256
Using ETS to Manage Converged Ethernet Traffic.....................................................................................................	256
Applying DCB Policies in a Switch Stack.......................................................................................................................	256
Configure a DCBx Operation...........................................................................................................................................	257
DCBx Operation...........................................................................................................................................................	257
DCBx Port Roles..........................................................................................................................................................	257
DCB Configuration Exchange....................................................................................................................................	258
Configuration Source Election...................................................................................................................................	259
Propagation of DCB Information...............................................................................................................................	259
Auto-Detection and Manual Configuration of the DCBx Version.........................................................................	259
DCBx Example.............................................................................................................................................................	260
DCBx Prerequisites and Restrictions........................................................................................................................	260
Configuring DCBx........................................................................................................................................................	260
Verifying the DCB Configuration.....................................................................................................................................	263

8 Contents

QoS dot1p Traffic Classification and Queue Assignment..............................................................................................	271
Configuring the Dynamic Buffer Method........................................................................................................................	271
Sample DCB Configuration..............................................................................................................................................	272
13 Dynamic Host Configuration Protocol (DHCP)...........................................................................	274
DHCP Packet Format and Options.................................................................................................................................	274
Assign an IP Address using DHCP..................................................................................................................................	275
Implementation Information.............................................................................................................................................	276
Configure the System to be a DHCP Server.................................................................................................................	277
Configuring the Server for Automatic Address Allocation.....................................................................................	277
Specifying a Default Gateway....................................................................................................................................	278
Configure a Method of Hostname Resolution.........................................................................................................	278
Using DNS for Address Resolution............................................................................................................................	278
Using NetBIOS WINS for Address Resolution.........................................................................................................	279
Creating Manual Binding Entries...............................................................................................................................	279
Debugging the DHCP Server.....................................................................................................................................	279
Using DHCP Clear Commands..................................................................................................................................	279
Configure the System to be a DHCP Client..................................................................................................................	280
Configuring the DHCP Client System.......................................................................................................................	280
DHCP Client on a Management Interface................................................................................................................	281
DHCP Client Operation with Other Features..........................................................................................................	282
Configuring DHCP relay source interface......................................................................................................................	282
Global DHCP relay source IPv4 or IPv6 configuration ...........................................................................................	282
Interface level DHCP relay source IPv4 or IPv6 configuration .............................................................................	283
Configure Secure DHCP..................................................................................................................................................	284
Option 82 (DHCPv4 relay options)...........................................................................................................................	284
DHCPv6 relay agent options.....................................................................................................................................	285
DHCP Snooping...........................................................................................................................................................	285
Drop DHCP Packets on Snooped VLANs Only.......................................................................................................	289
Dynamic ARP Inspection............................................................................................................................................	289
Configuring Dynamic ARP Inspection.......................................................................................................................	290
Source Address Validation................................................................................................................................................	291
Enabling IP Source Address Validation......................................................................................................................	291
DHCP MAC Source Address Validation...................................................................................................................	292
Enabling IP+MAC Source Address Validation..........................................................................................................	292
Viewing the Number of SAV Dropped Packets.......................................................................................................	292
Clearing the Number of SAV Dropped Packets......................................................................................................	293
14 Equal Cost Multi-Path (ECMP).................................................................................................	294
ECMP for Flow-Based Affinity........................................................................................................................................	294
Configuring the Hash Algorithm................................................................................................................................	294
Enabling Deterministic ECMP Next Hop..................................................................................................................	294
Configuring the Hash Algorithm Seed......................................................................................................................	294
Link Bundle Monitoring.....................................................................................................................................................	295
Managing ECMP Group Paths..................................................................................................................................	295
Creating an ECMP Group Bundle.............................................................................................................................	296
Modifying the ECMP Group Threshold....................................................................................................................	296
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table........................................	297
Support for ECMP in host table................................................................................................................................	297

Contents 9

Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes	............................................................................297
15 FIP Snooping..........................................................................................................................	298
Fibre Channel over Ethernet............................................................................................................................................	298
Ensure Robustness in a Converged Ethernet Network...............................................................................................	298
FIP Snooping on Ethernet Bridges..................................................................................................................................	299
Using FIP Snooping............................................................................................................................................................	301
FIP Snooping Prerequisites.........................................................................................................................................	301
Important Points to Remember..................................................................................................................................	301
Enabling the FCoE Transit Feature...........................................................................................................................	303
Enable FIP Snooping on VLANs.................................................................................................................................	303
Configure the FC-MAP Value....................................................................................................................................	303
Configure a Port for a Bridge-to-Bridge Link..........................................................................................................	303
Configure a Port for a Bridge-to-FCF Link..............................................................................................................	303
Impact on Other Software Features.........................................................................................................................	304
FIP Snooping Restrictions..........................................................................................................................................	304
Configuring FIP Snooping...........................................................................................................................................	304
Displaying FIP Snooping Information..............................................................................................................................	305
FCoE Transit Configuration Example.............................................................................................................................	309
16 Flex Hash and Optimized Boot-Up..............................................................................................	311
Flex Hash Capability Overview..........................................................................................................................................	311
Configuring the Flex Hash Mechanism............................................................................................................................	311
RDMA Over Converged Ethernet (RoCE) Overview....................................................................................................	312
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.........................................................................................	312
17 Force10 Resilient Ring Protocol (FRRP).....................................................................................	314
Protocol Overview.............................................................................................................................................................	314
Ring Status....................................................................................................................................................................	315
Multiple FRRP Rings....................................................................................................................................................	315
Important FRRP Points...............................................................................................................................................	316
Important FRRP Concepts..........................................................................................................................................	317
Implementing FRRP...........................................................................................................................................................	317
FRRP Configuration...........................................................................................................................................................	318
Creating the FRRP Group...........................................................................................................................................	318
Configuring the Control VLAN...................................................................................................................................	318
Configuring and Adding the Member VLANs...........................................................................................................	319
Setting the FRRP Timers...........................................................................................................................................	320
Clearing the FRRP Counters......................................................................................................................................	320
Viewing the FRRP Configuration..............................................................................................................................	320
Viewing the FRRP Information..................................................................................................................................	320
Troubleshooting FRRP......................................................................................................................................................	321
Sample Configuration and Topology................................................................................................................................	321
FRRP Support on VLT......................................................................................................................................................	322
18 GARP VLAN Registration Protocol (GVRP)................................................................................	325
Configure GVRP................................................................................................................................................................	325
Enabling GVRP Globally....................................................................................................................................................	326
Enabling GVRP on a Layer 2 Interface...........................................................................................................................	327

10 Contents

Configure GVRP Registration..........................................................................................................................................	327
Configure a GARP Timer..................................................................................................................................................	327
19 Internet Group Management Protocol (IGMP)...........................................................................	329
IGMP Protocol Overview.................................................................................................................................................	329
IGMP Version 2............................................................................................................................................................	329
IGMP Version 3............................................................................................................................................................	330
Configure IGMP.................................................................................................................................................................	333
Viewing IGMP Enabled Interfaces...................................................................................................................................	333
Selecting an IGMP Version..............................................................................................................................................	334
Viewing IGMP Groups......................................................................................................................................................	334
Adjusting Timers................................................................................................................................................................	335
Adjusting Query and Response Timers.....................................................................................................................	335
Enabling IGMP Immediate-Leave....................................................................................................................................	335
IGMP Snooping..................................................................................................................................................................	336
Configuring IGMP Snooping......................................................................................................................................	336
Removing a Group-Port Association.........................................................................................................................	337
Disabling Multicast Flooding.......................................................................................................................................	337
Specifying a Port as Connected to a Multicast Router..........................................................................................	337
Configuring the Switch as Querier............................................................................................................................	337
Fast Convergence after MSTP Topology Changes......................................................................................................	338
Egress Interface Selection (EIS) for HTTP and IGMP Applications...........................................................................	338
Designating a Multicast Router Interface......................................................................................................................	344
20 Interfaces..............................................................................................................................	345
Interface Types..................................................................................................................................................................	346
View Basic Interface Information....................................................................................................................................	346
Resetting an Interface to its Factory Default State.....................................................................................................	348
Enabling a Physical Interface...........................................................................................................................................	348
Physical Interfaces............................................................................................................................................................	349
Configuration Task List for Physical Interfaces.......................................................................................................	349
Overview of Layer Modes..........................................................................................................................................	349
Configuring Layer 2 (Data Link) Mode.....................................................................................................................	349
Configuring Layer 2 (Interface) Mode......................................................................................................................	350
Configuring Layer 3 (Network) Mode......................................................................................................................	350
Configuring Layer 3 (Interface) Mode......................................................................................................................	350
Egress Interface Selection (EIS)......................................................................................................................................	351
Configuring EIS.............................................................................................................................................................	351
Management Interfaces...................................................................................................................................................	352
Configuring Management Interfaces........................................................................................................................	352
Configuring a Management Interface on an Ethernet Port...................................................................................	352
VLAN Interfaces................................................................................................................................................................	353
Loopback Interfaces.........................................................................................................................................................	353
Null Interfaces....................................................................................................................................................................	354
Configuring Port Delay.....................................................................................................................................................	354
Port Channel Interfaces...................................................................................................................................................	354
Port Channel Definition and Standards....................................................................................................................	355
Port Channel Benefits................................................................................................................................................	355
Port Channel Implementation....................................................................................................................................	355

Contents 11

Interfaces in Port Channels........................................................................................................................................	355
Configuration Tasks for Port Channel Interfaces...................................................................................................	356
Creating a Port Channel.............................................................................................................................................	356
Adding a Physical Interface to a Port Channel........................................................................................................	356
Reassigning an Interface to a New Port Channel...................................................................................................	358
Configuring the Minimum Oper Up Links in a Port Channel..................................................................................	358
Adding or Removing a Port Channel from a VLAN.................................................................................................	359
Assigning an IP Address to a Port Channel..............................................................................................................	359
Deleting or Disabling a Port Channel.........................................................................................................................	360
Load Balancing Through Port Channels...................................................................................................................	360
Load-Balancing Method.............................................................................................................................................	360
Changing the Hash Algorithm....................................................................................................................................	360
Bulk Configuration..............................................................................................................................................................	361
Interface Range............................................................................................................................................................	361
Bulk Configuration Examples.....................................................................................................................................	362
Defining Interface Range Macros...................................................................................................................................	363
Define the Interface Range........................................................................................................................................	363
Choosing an Interface-Range Macro........................................................................................................................	364
Monitoring and Maintaining Interfaces...........................................................................................................................	364
Maintenance Using TDR.............................................................................................................................................	365
Non Dell-Qualified Transceivers......................................................................................................................................	365
Splitting 100G Ports..........................................................................................................................................................	366
Link Dampening.................................................................................................................................................................	366
Enabling Link Dampening............................................................................................................................................	369
Link Bundle Monitoring.....................................................................................................................................................	370
Using Ethernet Pause Frames for Flow Control............................................................................................................	370
Enabling Pause Frames................................................................................................................................................	371
Configure the MTU Size on an Interface........................................................................................................................	371
Configuring wavelength for 10–Gigabit SFP+ optics...................................................................................................	372
Port-Pipes..........................................................................................................................................................................	372
CR4 Auto-Negotiation......................................................................................................................................................	372
Setting the Speed of Ethernet Interfaces......................................................................................................................	373
Speed Setting on 25G Interfaces....................................................................................................................................	374
Configuring 10G speed on 25G ports.............................................................................................................................	375
FEC Configuration.............................................................................................................................................................	376
View Advanced Interface Information............................................................................................................................	378
Configuring the Interface Sampling Size..................................................................................................................	378
Configuring the Traffic Sampling Size Globally.............................................................................................................	379
Dynamic Counters..............................................................................................................................................................	381
Clearing Interface Counters........................................................................................................................................	381
Enhanced Validation of Interface Ranges......................................................................................................................	382
Compressing Configuration Files.....................................................................................................................................	382
OUI on 25G and 50G Interfaces......................................................................................................................................	384
Configuring OUI on 25G and 50G Interfaces..........................................................................................................	384
21 IPv4 Routing...........................................................................................................................	385
IP Addresses......................................................................................................................................................................	386
Configuration Tasks for IP Addresses............................................................................................................................	386
Assigning IP Addresses to an Interface..........................................................................................................................	386
Configuring Static Routes................................................................................................................................................	387

12 Contents

Adding description for IPv4 and IPv6 static routes................................................................................................	388
Configure Static Routes for the Management Interface.............................................................................................	388
Using the Configured Source IP Address in ICMP Messages.....................................................................................	389
Configuring the Duration to Establish a TCP Connection...........................................................................................	389
Enabling Directed Broadcast...........................................................................................................................................	390
Resolution of Host Names...............................................................................................................................................	390
Enabling Dynamic Resolution of Host Names...............................................................................................................	390
Specifying the Local System Domain and a List of Domains.......................................................................................	391
Configuring DNS with Traceroute...................................................................................................................................	391
ARP.....................................................................................................................................................................................	392
Configuration Tasks for ARP...........................................................................................................................................	392
Configuring Static ARP Entries.......................................................................................................................................	392
Enabling Proxy ARP..........................................................................................................................................................	392
Clearing ARP Cache..........................................................................................................................................................	393
ARP Learning via Gratuitous ARP...................................................................................................................................	393
Enabling ARP Learning via Gratuitous ARP...................................................................................................................	393
ARP Learning via ARP Request.......................................................................................................................................	393
Configuring ARP Retries..................................................................................................................................................	394
ICMP...................................................................................................................................................................................	395
Configuration Tasks for ICMP.........................................................................................................................................	395
Enabling ICMP Unreachable Messages..........................................................................................................................	395
ICMP Redirects.................................................................................................................................................................	395
UDP Helper........................................................................................................................................................................	396
Enabling UDP Helper.........................................................................................................................................................	397
Configuring a Broadcast Address....................................................................................................................................	397
Configurations Using UDP Helper...................................................................................................................................	398
UDP Helper with Broadcast-All Addresses....................................................................................................................	398
UDP Helper with Subnet Broadcast Addresses............................................................................................................	399
UDP Helper with Configured Broadcast Addresses.....................................................................................................	399
UDP Helper with No Configured Broadcast Addresses...............................................................................................	400
Troubleshooting UDP Helper...........................................................................................................................................	400
22 IPv6 Routing...........................................................................................................................	401
Protocol Overview.............................................................................................................................................................	401
Extended Address Space............................................................................................................................................	401
Path MTU discovery....................................................................................................................................................	401
Stateless Autoconfiguration.......................................................................................................................................	402
IPv6 Headers................................................................................................................................................................	403
Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support......................................................................	403
IPv6 Header Fields......................................................................................................................................................	403
Extension Header Fields.............................................................................................................................................	404
Addressing....................................................................................................................................................................	405
Implementing IPv6 with Dell EMC Networking OS......................................................................................................	406
ICMPv6..............................................................................................................................................................................	406
Path MTU discovery.........................................................................................................................................................	406
IPv6 Neighbor Discovery..................................................................................................................................................	407
IPv6 Neighbor Discovery of MTU Packets..............................................................................................................	408
Configuring the IPv6 Recursive DNS Server...........................................................................................................	408
Debugging IPv6 RDNSS Information Sent to the Host ........................................................................................	409
Displaying IPv6 RDNSS Information.........................................................................................................................	409

Contents 13

Secure Shell (SSH) Over an IPv6 Transport..................................................................................................................	410
Configuration Tasks for IPv6............................................................................................................................................	410
Adjusting Your CAM-Profile........................................................................................................................................	410
Assigning an IPv6 Address to an Interface................................................................................................................	411
Assigning a Static IPv6 Route.....................................................................................................................................	411
Configuring Telnet with IPv6......................................................................................................................................	412
SNMP over IPv6..........................................................................................................................................................	412
Displaying IPv6 Information.........................................................................................................................................	412
Displaying an IPv6 Interface Information..................................................................................................................	412
Showing IPv6 Routes..................................................................................................................................................	413
Showing the Running-Configuration for an Interface.............................................................................................	414
Clearing IPv6 Routes...................................................................................................................................................	415
Configuring IPv6 RA Guard..............................................................................................................................................	415
23 iSCSI Optimization..................................................................................................................	417
iSCSI Optimization Overview............................................................................................................................................	417
Monitoring iSCSI Traffic Flows...................................................................................................................................	418
Application of Quality of Service to iSCSI Traffic Flows.........................................................................................	418
Information Monitored in iSCSI Traffic Flows..........................................................................................................	419
Detection and Auto-Configuration for Dell EqualLogic Arrays...............................................................................	419
Configuring Detection and Ports for Dell Compellent Arrays................................................................................	420
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..................................................................	420
Enable and Disable iSCSI Optimization......................................................................................................................	421
Default iSCSI Optimization Values...................................................................................................................................	421
iSCSI Optimization Prerequisites.....................................................................................................................................	421
Configuring iSCSI Optimization.......................................................................................................................................	422
Displaying iSCSI Optimization Information.....................................................................................................................	423
24 Intermediate System to Intermediate System...........................................................................	425
IS-IS Protocol Overview...................................................................................................................................................	425
IS-IS Addressing................................................................................................................................................................	425
Multi-Topology IS-IS.........................................................................................................................................................	426
Transition Mode...........................................................................................................................................................	426
Interface Support........................................................................................................................................................	426
Adjacencies...................................................................................................................................................................	426
Graceful Restart................................................................................................................................................................	427
Timers............................................................................................................................................................................	427
Implementation Information.............................................................................................................................................	427
Configuration Information................................................................................................................................................	428
Configuration Tasks for IS-IS.....................................................................................................................................	428
Configuring the Distance of a Route........................................................................................................................	435
Changing the IS-Type.................................................................................................................................................	435
Redistributing IPv4 Routes.........................................................................................................................................	437
Redistributing IPv6 Routes.........................................................................................................................................	438
Configuring Authentication Passwords....................................................................................................................	438
Setting the Overload Bit.............................................................................................................................................	439
Debugging IS-IS...........................................................................................................................................................	439
IS-IS Metric Styles............................................................................................................................................................	440
Configure Metric Values...................................................................................................................................................	440

14 Contents

Maximum Values in the Routing Table.....................................................................................................................	440
Change the IS-IS Metric Style in One Level Only...................................................................................................	440
Leaks from One Level to Another.............................................................................................................................	442
Sample Configurations......................................................................................................................................................	442
25 Link Aggregation Control Protocol (LACP)................................................................................	445
Introduction to Dynamic LAGs and LACP......................................................................................................................	445
Important Points to Remember.................................................................................................................................	445
LACP Modes................................................................................................................................................................	445
Configuring LACP Commands...................................................................................................................................	446
LACP Configuration Tasks...............................................................................................................................................	446
Creating a LAG............................................................................................................................................................	446
Configuring the LAG Interfaces as Dynamic............................................................................................................	447
Setting the LACP Long Timeout...............................................................................................................................	447
Monitoring and Debugging LACP..............................................................................................................................	448
Shared LAG State Tracking.............................................................................................................................................	448
Configuring Shared LAG State Tracking..................................................................................................................	449
Important Points about Shared LAG State Tracking..............................................................................................	450
LACP Basic Configuration Example................................................................................................................................	450
Configure a LAG on ALPHA.......................................................................................................................................	450
26 Layer 2..................................................................................................................................	458
Manage the MAC Address Table....................................................................................................................................	458
Clearing the MAC Address Table..............................................................................................................................	458
Setting the Aging Time for Dynamic Entries...........................................................................................................	458
Configuring a Static MAC Address...........................................................................................................................	458
Displaying the MAC Address Table...........................................................................................................................	459
MAC Learning Limit..........................................................................................................................................................	459
Setting the MAC Learning Limit................................................................................................................................	459
mac learning-limit Dynamic........................................................................................................................................	460
mac learning-limit mac-address-sticky.....................................................................................................................	460
mac learning-limit station-move................................................................................................................................	460
mac learning-limit no-station-move..........................................................................................................................	460
Learning Limit Violation Actions.................................................................................................................................	461
Setting Station Move Violation Actions....................................................................................................................	461
Recovering from Learning Limit and Station Move Violations...............................................................................	461
Disabling MAC Address Learning on the System..........................................................................................................	462
Enabling port security.......................................................................................................................................................	462
NIC Teaming......................................................................................................................................................................	462
Configure Redundant Pairs..............................................................................................................................................	463
Far-End Failure Detection................................................................................................................................................	466
FEFD State Changes..................................................................................................................................................	466
Configuring FEFD........................................................................................................................................................	467
Enabling FEFD on an Interface..................................................................................................................................	468
Debugging FEFD..........................................................................................................................................................	468
27 Link Layer Discovery Protocol (LLDP).......................................................................................	470
802.1AB (LLDP) Overview...............................................................................................................................................	470
Protocol Data Units.....................................................................................................................................................	470

Contents 15

Optional TLVs.....................................................................................................................................................................	471
Management TLVs.......................................................................................................................................................	471
TIA-1057 (LLDP-MED) Overview...................................................................................................................................	472
TIA Organizationally Specific TLVs............................................................................................................................	473
Configure LLDP.................................................................................................................................................................	475
CONFIGURATION versus INTERFACE Configurations...............................................................................................	476
Enabling LLDP....................................................................................................................................................................	477
Disabling and Undoing LLDP......................................................................................................................................	477
Enabling LLDP on Management Ports............................................................................................................................	477
Disabling and Undoing LLDP on Management Ports..............................................................................................	477
Advertising TLVs...............................................................................................................................................................	478
Viewing the LLDP Configuration.....................................................................................................................................	478
Viewing Information Advertised by Adjacent LLDP Neighbors...................................................................................	479
Examples of Viewing Information Advertised by Neighbors..................................................................................	479
Configuring LLDPDU Intervals.........................................................................................................................................	481
Configuring Transmit and Receive Mode.......................................................................................................................	481
Configuring the Time to Live Value.................................................................................................................................	482
Debugging LLDP................................................................................................................................................................	483
Relevant Management Objects.......................................................................................................................................	484
28 Microsoft Network Load Balancing...........................................................................................	488
Configuring a Switch for NLB ........................................................................................................................................	489
Enabling a Switch for Multicast NLB........................................................................................................................	489
29 Multicast Source Discovery Protocol (MSDP)............................................................................	491
Anycast RP.........................................................................................................................................................................	492
Implementation Information.............................................................................................................................................	493
Configure Multicast Source Discovery Protocol...........................................................................................................	493
Related Configuration Tasks......................................................................................................................................	493
Enable MSDP.....................................................................................................................................................................	497
Manage the Source-Active Cache..................................................................................................................................	498
Viewing the Source-Active Cache............................................................................................................................	498
Limiting the Source-Active Cache............................................................................................................................	498
Clearing the Source-Active Cache............................................................................................................................	498
Enabling the Rejected Source-Active Cache...........................................................................................................	499
Accept Source-Active Messages that Fail the RFP Check.........................................................................................	499
Specifying Source-Active Messages...............................................................................................................................	501
Limiting the Source-Active Messages from a Peer......................................................................................................	502
Preventing MSDP from Caching a Local Source..........................................................................................................	502
Preventing MSDP from Caching a Remote Source.....................................................................................................	502
Preventing MSDP from Advertising a Local Source....................................................................................................	503
Logging Changes in Peership States..............................................................................................................................	504
Terminating a Peership.....................................................................................................................................................	504
Clearing Peer Statistics....................................................................................................................................................	504
Debugging MSDP..............................................................................................................................................................	505
MSDP with Anycast RP...................................................................................................................................................	505
Configuring Anycast RP...................................................................................................................................................	506
Reducing Source-Active Message Flooding............................................................................................................	507
Specifying the RP Address Used in SA Messages..................................................................................................	507

16 Contents

MSDP Sample Configurations.........................................................................................................................................	509
30 Multicast Listener Discovery Protocol.......................................................................................	512
MLD timers.........................................................................................................................................................................	515
Reducing Host Response Burstiness.........................................................................................................................	515
Configuring MLD Version..................................................................................................................................................	516
Clearing MLD groups.........................................................................................................................................................	516
Debugging MLD.................................................................................................................................................................	516
Explicit Tracking.................................................................................................................................................................	516
Reducing Leave Latency...................................................................................................................................................	516
Displaying MLD groups table............................................................................................................................................	516
Displaying MLD Interfaces................................................................................................................................................	517
MLD Snooping....................................................................................................................................................................	517
Enable MLD Snooping.................................................................................................................................................	517
Disable MLD Snooping.................................................................................................................................................	517
Configure the switch as a querier..............................................................................................................................	518
Specify port as connected to multicast router........................................................................................................	518
Enable Snooping Explicit Tracking.............................................................................................................................	518
Display the MLD Snooping Table...............................................................................................................................	518
31 Multiple Spanning Tree Protocol (MSTP)..................................................................................	519
Spanning Tree Variations.................................................................................................................................................	520
Implementation Information.......................................................................................................................................	520
Configure Multiple Spanning Tree Protocol...................................................................................................................	520
Related Configuration Tasks......................................................................................................................................	520
Enable Multiple Spanning Tree Globally..........................................................................................................................	521
Adding and Removing Interfaces.....................................................................................................................................	521
Creating Multiple Spanning Tree Instances....................................................................................................................	521
Influencing MSTP Root Selection...................................................................................................................................	523
Interoperate with Non-Dell Bridges................................................................................................................................	523
Changing the Region Name or Revision.........................................................................................................................	523
Modifying Global Parameters..........................................................................................................................................	524
Modifying the Interface Parameters...............................................................................................................................	525
Setting STP path cost as constant................................................................................................................................	525
Configuring an EdgePort..................................................................................................................................................	526
Flush MAC Addresses after a Topology Change..........................................................................................................	526
MSTP Sample Configurations..........................................................................................................................................	527
Debugging and Verifying MSTP Configurations............................................................................................................	531
32 Multicast Features..................................................................................................................	533
Enabling IP Multicast........................................................................................................................................................	533
Implementation Information.............................................................................................................................................	533
Multicast Policies...............................................................................................................................................................	534
IPv4 Multicast Policies................................................................................................................................................	534
Understanding Multicast Traceroute (mtrace)..............................................................................................................	541
Printing Multicast Traceroute (mtrace) Paths...............................................................................................................	541
Supported Error Codes....................................................................................................................................................	543
mtrace Scenarios..............................................................................................................................................................	543

Contents 17

33 Object Tracking......................................................................................................................	549
Object Tracking Overview...............................................................................................................................................	549
Track Layer 2 Interfaces............................................................................................................................................	550
Track Layer 3 Interfaces............................................................................................................................................	550
Track IPv4 and IPv6 Routes......................................................................................................................................	550
Set Tracking Delays.....................................................................................................................................................	551
VRRP Object Tracking................................................................................................................................................	552
Object Tracking Configuration........................................................................................................................................	552
Tracking a Layer 2 Interface......................................................................................................................................	552
Tracking a Layer 3 Interface......................................................................................................................................	553
Track an IPv4/IPv6 Route.........................................................................................................................................	554
Displaying Tracked Objects..............................................................................................................................................	557
34 Open Shortest Path First (OSPFv2 and OSPFv3)......................................................................	559
Protocol Overview............................................................................................................................................................	559
Autonomous System (AS) Areas..............................................................................................................................	559
Area Types...................................................................................................................................................................	560
Networks and Neighbors............................................................................................................................................	561
Router Types................................................................................................................................................................	561
Designated and Backup Designated Routers..........................................................................................................	562
Link-State Advertisements (LSAs)...........................................................................................................................	562
Router Priority and Cost.............................................................................................................................................	563
OSPF with Dell EMC Networking OS.............................................................................................................................	564
Graceful Restart..........................................................................................................................................................	564
Fast Convergence (OSPFv2, IPv4 Only).................................................................................................................	565
Multi-Process OSPFv2 with VRF.............................................................................................................................	565
OSPF ACK Packing.....................................................................................................................................................	566
Setting OSPF Adjacency with Cisco Routers..........................................................................................................	566
Configuration Information................................................................................................................................................	566
Configuration Task List for OSPFv2 (OSPF for IPv4)...........................................................................................	567
Configuration Task List for OSPFv3 (OSPF for IPv6).................................................................................................	578
Enabling IPv6 Unicast Routing...................................................................................................................................	579
Assigning IPv6 Addresses on an Interface...............................................................................................................	579
Assigning Area ID on an Interface.............................................................................................................................	579
Assigning OSPFv3 Process ID and Router ID Globally...........................................................................................	580
Assigning OSPFv3 Process ID and Router ID to a VRF.........................................................................................	580
Configuring Stub Areas..............................................................................................................................................	580
Configuring Passive-Interface....................................................................................................................................	581
Redistributing Routes..................................................................................................................................................	581
Configuring a Default Route.......................................................................................................................................	581
Applying cost for OSPFv3..........................................................................................................................................	582
Enabling OSPFv3 Graceful Restart...........................................................................................................................	582
OSPFv3 Authentication Using IPsec........................................................................................................................	584
Troubleshooting OSPFv3...........................................................................................................................................	589
MIB Support for OSPFv3.................................................................................................................................................	590
Viewing the OSPFv3 MIB...........................................................................................................................................	591
35 Policy-based Routing (PBR)....................................................................................................	592

18 Contents

Overview............................................................................................................................................................................	592
Implementing PBR............................................................................................................................................................	593
Configuration Task List for Policy-based Routing........................................................................................................	593
Create a Redirect List.................................................................................................................................................	594
Create a Rule for a Redirect-list................................................................................................................................	594
Apply a Redirect-list to an Interface using a Redirect-group................................................................................	595
Sample Configuration.......................................................................................................................................................	597
36 PIM Sparse-Mode (PIM-SM)...................................................................................................	602
Implementation Information.............................................................................................................................................	602
Protocol Overview............................................................................................................................................................	602
Requesting Multicast Traffic.....................................................................................................................................	602
Refuse Multicast Traffic.............................................................................................................................................	602
Send Multicast Traffic................................................................................................................................................	603
Configuring PIM-SM.........................................................................................................................................................	603
Related Configuration Tasks......................................................................................................................................	603
Enable PIM-SM.................................................................................................................................................................	603
Configuring S,G Expiry Timers........................................................................................................................................	604
Configuring a Static Rendezvous Point.........................................................................................................................	605
Overriding Bootstrap Router Updates.....................................................................................................................	605
Configuring a Designated Router....................................................................................................................................	605
Creating Multicast Boundaries and Domains.................................................................................................................	606
Electing an RP using the BSR Mechanism....................................................................................................................	606
37 PIM Source-Specific Mode (PIM-SSM)....................................................................................	608
Implementation Information.............................................................................................................................................	608
Configure PIM-SSM.........................................................................................................................................................	608
Enabling PIM-SSM............................................................................................................................................................	609
Use PIM-SSM with IGMP Version 2 Hosts...................................................................................................................	609
Electing an RP using the BSR Mechanism.....................................................................................................................	610
Enabling RP to Server Specific Multicast Groups....................................................................................................	611
38 Port Monitoring......................................................................................................................	613
Important Points to Remember.......................................................................................................................................	613
Port Monitoring..................................................................................................................................................................	613
Configuring Port Monitoring.............................................................................................................................................	615
Configuring Monitor Multicast Queue.............................................................................................................................	616
Flow-Based Monitoring.....................................................................................................................................................	617
Enabling Flow-Based Monitoring...............................................................................................................................	618
Remote Port Mirroring.....................................................................................................................................................	620
Remote Port Mirroring Example................................................................................................................................	620
Configuring Remote Port Mirroring...........................................................................................................................	621
Displaying Remote-Port Mirroring Configurations..................................................................................................	622
Configuration procedure for Remote Port Mirroring..............................................................................................	622
Encapsulated Remote Port Monitoring..........................................................................................................................	626
ERPM Behavior on a typical Dell EMC Networking OS ..............................................................................................	628
Port Monitoring on VLT...................................................................................................................................................	629
39 Private VLANs (PVLAN)..........................................................................................................	632

Contents 19

Private VLAN Concepts...................................................................................................................................................	632
Using the Private VLAN Commands...............................................................................................................................	633
Configuration Task List.....................................................................................................................................................	634
Creating PVLAN ports................................................................................................................................................	634
Creating a Primary VLAN...........................................................................................................................................	634
Creating a Community VLAN....................................................................................................................................	635
Creating an Isolated VLAN.........................................................................................................................................	636
Private VLAN Configuration Example.............................................................................................................................	637
Inspecting the Private VLAN Configuration..................................................................................................................	638
40 Per-VLAN Spanning Tree Plus (PVST+)....................................................................................	640
Protocol Overview............................................................................................................................................................	640
Implementation Information..............................................................................................................................................	641
Configure Per-VLAN Spanning Tree Plus.......................................................................................................................	641
Enabling PVST+.................................................................................................................................................................	641
Disabling PVST+.................................................................................................................................................................	641
Influencing PVST+ Root Selection..................................................................................................................................	642
Modifying Global PVST+ Parameters.............................................................................................................................	643
Modifying Interface PVST+ Parameters........................................................................................................................	644
Configuring an EdgePort..................................................................................................................................................	644
PVST+ in Multi-Vendor Networks..................................................................................................................................	645
Enabling PVST+ Extend System ID................................................................................................................................	645
PVST+ Sample Configurations........................................................................................................................................	646
41 Quality of Service (QoS)..........................................................................................................	648
Implementation Information.............................................................................................................................................	650
Port-Based QoS Configurations.....................................................................................................................................	650
Setting dot1p Priorities for Incoming Traffic............................................................................................................	650
Honoring dot1p Priorities on Ingress Traffic.............................................................................................................	651
Configuring Port-Based Rate Policing.......................................................................................................................	651
Configuring Port-Based Rate Shaping......................................................................................................................	651
Policy-Based QoS Configurations...................................................................................................................................	652
Classify Traffic.............................................................................................................................................................	652
Dot1p to Queue Mapping Requirement....................................................................................................................	655
Create a QoS Policy....................................................................................................................................................	656
DSCP Color Maps.......................................................................................................................................................	658
Create Policy Maps.....................................................................................................................................................	659
Enabling QoS Rate Adjustment.......................................................................................................................................	662
Enabling Strict-Priority Queueing....................................................................................................................................	662
Queue Classification Requirements for PFC Functionality..........................................................................................	663
Support for marking dot1p value in L3 Input Qos Policy..............................................................................................	663
Weighted Random Early Detection.................................................................................................................................	664
Enabling and Disabling WRED Globally.....................................................................................................................	664
Creating WRED Profiles.............................................................................................................................................	665
Applying a WRED Profile to Traffic...........................................................................................................................	665
Displaying Default and Configured WRED Profiles.................................................................................................	665
Displaying WRED Drop Statistics..............................................................................................................................	665
Displaying egress–queue Statistics...........................................................................................................................	666
Pre-Calculating Available QoS CAM Space...................................................................................................................	666

20 Contents

Specifying Policy-Based Rate Shaping in Packets Per Second..................................................................................	667
Configuring Policy-Based Rate Shaping.........................................................................................................................	667
Configuring Weights and ECN for WRED .....................................................................................................................	668
Configuring WRED and ECN Attributes.........................................................................................................................	669
Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................	670
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class....................................	670
Classifying Incoming Packets Using ECN and Color-Marking................................................................................	671
Sample configuration to mark non-ecn packets as “yellow” with single traffic class.........................................	672
Applying Layer 2 Match Criteria on a Layer 3 Interface...............................................................................................	673
Managing Hardware Buffer Statistics......................................................................................................................	673
Enabling Buffer Statistics Tracking ................................................................................................................................	674
42 Routing Information Protocol (RIP)..........................................................................................	676
Protocol Overview............................................................................................................................................................	676
RIPv1.............................................................................................................................................................................	676
RIPv2.............................................................................................................................................................................	676
Implementation Information.............................................................................................................................................	676
Configuration Information.................................................................................................................................................	677
Configuration Task List...............................................................................................................................................	677
RIP Configuration Example........................................................................................................................................	682
43 Remote Monitoring (RMON)....................................................................................................	687
Implementation Information.............................................................................................................................................	687
Fault Recovery...................................................................................................................................................................	687
Setting the RMON Alarm...........................................................................................................................................	687
Configuring an RMON Event.....................................................................................................................................	688
Configuring RMON Collection Statistics..................................................................................................................	689
Configuring the RMON Collection History...............................................................................................................	689
44 Rapid Spanning Tree Protocol (RSTP)......................................................................................	690
Protocol Overview............................................................................................................................................................	690
Configuring Rapid Spanning Tree...................................................................................................................................	690
Important Points to Remember.......................................................................................................................................	690
RSTP and VLT..............................................................................................................................................................	691
Configuring Interfaces for Layer 2 Mode.......................................................................................................................	691
Enabling Rapid Spanning Tree Protocol Globally...........................................................................................................	691
Adding and Removing Interfaces....................................................................................................................................	693
Modifying Global Parameters..........................................................................................................................................	693
Enabling SNMP Traps for Root Elections and Topology Changes.......................................................................	695
Modifying Interface Parameters.....................................................................................................................................	695
Enabling SNMP Traps for Root Elections and Topology Changes.............................................................................	695
Influencing RSTP Root Selection....................................................................................................................................	695
Configuring an EdgePort..................................................................................................................................................	696
Configuring Fast Hellos for Link State Detection.........................................................................................................	696
45 Software-Defined Networking (SDN).......................................................................................	698
46 Security.................................................................................................................................	699
AAA Accounting................................................................................................................................................................	699

Contents 21

Configuration Task List for AAA Accounting...........................................................................................................	699
RADIUS Accounting.....................................................................................................................................................	701
AAA Authentication...........................................................................................................................................................	706
Configuration Task List for AAA Authentication.....................................................................................................	706
Obscuring Passwords and Keys......................................................................................................................................	708
AAA Authorization.............................................................................................................................................................	709
Privilege Levels Overview..........................................................................................................................................	709
Configuration Task List for Privilege Levels.............................................................................................................	709
RADIUS................................................................................................................................................................................	712
RADIUS Authentication...............................................................................................................................................	713
Configuration Task List for RADIUS..........................................................................................................................	714
TACACS+............................................................................................................................................................................	716
Configuration Task List for TACACS+.......................................................................................................................	716
TACACS+ Remote Authentication.............................................................................................................................	718
Command Authorization..............................................................................................................................................	719
Protection from TCP Tiny and Overlapping Fragment Attacks...................................................................................	719
Enabling SCP and SSH......................................................................................................................................................	719
Using SCP with SSH to Copy a Software Image....................................................................................................	720
Removing the RSA Host Keys and Zeroizing Storage ............................................................................................	721
Configuring When to Re-generate an SSH Key ......................................................................................................	721
Configuring the SSH Server Key Exchange Algorithm............................................................................................	721
Configuring the HMAC Algorithm for the SSH Server...........................................................................................	722
Configuring the HMAC Algorithm for the SSH Client............................................................................................	722
Configuring the SSH Server Cipher List...................................................................................................................	723
Configuring the SSH Client Cipher List....................................................................................................................	723
Secure Shell Authentication.......................................................................................................................................	723
Troubleshooting SSH..................................................................................................................................................	725
Telnet..................................................................................................................................................................................	726
VTY Line and Access-Class Configuration.....................................................................................................................	726
VTY Line Local Authentication and Authorization...................................................................................................	726
VTY Line Remote Authentication and Authorization...............................................................................................	727
VTY MAC-SA Filter Support......................................................................................................................................	727
Role-Based Access Control..............................................................................................................................................	728
Overview of RBAC......................................................................................................................................................	728
User Roles....................................................................................................................................................................	730
AAA Authentication and Authorization for Roles.....................................................................................................	733
Role Accounting...........................................................................................................................................................	735
Display Information About User Roles.......................................................................................................................	736
Two Factor Authentication (2FA)...................................................................................................................................	737
Handling Access-Challenge Message.......................................................................................................................	737
Configuring Challenge Response Authentication for SSHv2.................................................................................	737
SMS-OTP Mechanism................................................................................................................................................	738
Configuring the System to Drop Certain ICMP Reply Messages...............................................................................	738
SSH Lockout Settings......................................................................................................................................................	740
47 Service Provider Bridging.........................................................................................................	741
VLAN Stacking...................................................................................................................................................................	741
Configure VLAN Stacking...........................................................................................................................................	742
Creating Access and Trunk Ports..............................................................................................................................	743
Enable VLAN-Stacking for a VLAN...........................................................................................................................	743

22 Contents

Configuring the Protocol Type Value for the Outer VLAN Tag.............................................................................	744
Configuring Dell EMC Networking OS Options for Trunk Ports...........................................................................	744
Debugging VLAN Stacking.........................................................................................................................................	745
VLAN Stacking in Multi-Vendor Networks..............................................................................................................	745
VLAN Stacking Packet Drop Precedence......................................................................................................................	748
Enabling Drop Eligibility...............................................................................................................................................	748
Honoring the Incoming DEI Value..............................................................................................................................	749
Marking Egress Packets with a DEI Value................................................................................................................	749
Dynamic Mode CoS for VLAN Stacking.........................................................................................................................	750
Mapping C-Tag to S-Tag dot1p Values.....................................................................................................................	751
Layer 2 Protocol Tunneling...............................................................................................................................................	751
Enabling Layer 2 Protocol Tunneling.........................................................................................................................	753
Specifying a Destination MAC Address for BPDUs................................................................................................	754
Setting Rate-Limit BPDUs..........................................................................................................................................	754
Debugging Layer 2 Protocol Tunneling.....................................................................................................................	754
Provider Backbone Bridging.............................................................................................................................................	754
48 sFlow.....................................................................................................................................	756
Overview............................................................................................................................................................................	756
Implementation Information.............................................................................................................................................	756
Enabling Extended sFlow..................................................................................................................................................	757
Important Points to Remember.................................................................................................................................	758
Enabling and Disabling sFlow on an Interface................................................................................................................	758
Enabling sFlow Max-Header Size Extended..................................................................................................................	759
sFlow Show Commands...................................................................................................................................................	759
Displaying Show sFlow Global....................................................................................................................................	760
Displaying Show sFlow on an Interface....................................................................................................................	760
Displaying Show sFlow on a .......................................................................................................................................	761
Configuring Specify Collectors.........................................................................................................................................	761
Changing the Polling Intervals..........................................................................................................................................	761
Back-Off Mechanism.........................................................................................................................................................	761
sFlow on LAG ports...........................................................................................................................................................	762
49 Simple Network Management Protocol (SNMP)........................................................................	763
Protocol Overview............................................................................................................................................................	764
Implementation Information.............................................................................................................................................	764
SNMPv3 Compliance With FIPS.....................................................................................................................................	764
Configuration Task List for SNMP..................................................................................................................................	765
Important Points to Remember.......................................................................................................................................	765
Set up SNMP.....................................................................................................................................................................	765
Creating a Community................................................................................................................................................	766
Setting Up User-Based Security (SNMPv3)...........................................................................................................	766
Enable SNMPv3 traps.................................................................................................................................................	767
Reading Managed Object Values.....................................................................................................................................	767
Writing Managed Object Values......................................................................................................................................	768
Configuring Contact and Location Information using SNMP......................................................................................	768
Subscribing to Managed Object Value Updates using SNMP.....................................................................................	769
Enabling a Subset of SNMP Traps..................................................................................................................................	769
Enabling an SNMP Agent to Notify Syslog Server Failure...........................................................................................	770

Contents 23

Copy Configuration Files Using SNMP............................................................................................................................	771
Copying a Configuration File......................................................................................................................................	772
Copying Configuration Files via SNMP.....................................................................................................................	773
Copying the Startup-Config Files to the Running-Config......................................................................................	773
Copying the Startup-Config Files to the Server via FTP........................................................................................	773
Copying the Startup-Config Files to the Server via TFTP.....................................................................................	774
Copy a Binary File to the Startup-Configuration.....................................................................................................	774
Additional MIB Objects to View Copy Statistics......................................................................................................	774
Obtaining a Value for MIB Objects............................................................................................................................	775
MIB Support for Power Monitoring................................................................................................................................	775
MIB Support for 25G, 40G, 50G, 100G Optical Transceiver or DAC cable IDPROM user info..............................	776
MIB Support to Display the Available Memory Size on Flash......................................................................................	777
Viewing the Available Flash Memory Size.................................................................................................................	777
MIB Support to Display the Software Core Files Generated by the System.............................................................	778
Viewing the Software Core Files Generated by the System.................................................................................	778
MIB Support for PFC Storm Control..............................................................................................................................	779
MIB Support for PFC no-drop-priority L2Dlf Drop.......................................................................................................	780
MIB Support for Monitoring the overall buffer usage for lossy and lossless traffic per XPE..................................	781
SNMP Support for WRED Green/Yellow/Red Drop Counters...................................................................................	782
MIB Support to Display the Available Partitions on Flash............................................................................................	783
Viewing the Available Partitions on Flash.................................................................................................................	783
MIB Support to Display the ECN Marked Packets ......................................................................................................	784
MIB Support to Display Egress Queue Statistics..........................................................................................................	784
MIB Support to ECMP Group Count..............................................................................................................................	784
Viewing the ECMP Group Count Information.........................................................................................................	785
.............................................................................................................................................................................................	787
Viewing the FEC BER Details.....................................................................................................................................	788
MIB Support for entAliasMappingTable ........................................................................................................................	790
Viewing the entAliasMappingTable MIB...................................................................................................................	790
MIB Support for LAG.........................................................................................................................................................	791
Viewing the LAG MIB..................................................................................................................................................	792
MIB Support for CAM.......................................................................................................................................................	792
Viewing the CAM MIB................................................................................................................................................	793
MIB support for MAC notification traps.........................................................................................................................	793
MIB support for Port Security.........................................................................................................................................	794
Global MIB objects for port security.........................................................................................................................	794
MIB support for interface level port security...........................................................................................................	794
MIB objects for configuring MAC addresses...........................................................................................................	795
MIB objects for configuring MAC addresses...........................................................................................................	796
Configuring SNMP traps for new MAC learning or station–move.............................................................................	796
Manage VLANs using SNMP...........................................................................................................................................	797
Creating a VLAN..........................................................................................................................................................	797
Assigning a VLAN Alias................................................................................................................................................	797
Displaying the Ports in a VLAN..................................................................................................................................	797
Add Tagged and Untagged Ports to a VLAN...........................................................................................................	797
Managing Overload on Startup.......................................................................................................................................	798
Enabling and Disabling a Port using SNMP....................................................................................................................	799
Fetch Dynamic MAC Entries using SNMP.....................................................................................................................	799
Example of Deriving the Interface Index Number.........................................................................................................	800
MIB Objects for Viewing the System Image on Flash Partitions..........................................................................	800

24 Contents

Monitor Port-Channels.....................................................................................................................................................	801
Troubleshooting SNMP Operation..................................................................................................................................	802
Transceiver Monitoring....................................................................................................................................................	802
Configuring SNMP context name...................................................................................................................................	803
50 Storm Control........................................................................................................................	804
Configure Storm Control..................................................................................................................................................	804
Configuring Storm Control from INTERFACE Mode..............................................................................................	804
Configuring Storm Control from CONFIGURATION Mode...................................................................................	805
PFC Storm.........................................................................................................................................................................	805
Detect PFC Storm......................................................................................................................................................	805
Restore Queue Drop State........................................................................................................................................	806
View Details of Storm Control PFC..........................................................................................................................	806
51 Spanning Tree Protocol (STP).................................................................................................	808
Protocol Overview............................................................................................................................................................	808
Configure Spanning Tree.................................................................................................................................................	808
Important Points to Remember.......................................................................................................................................	809
Configuring Interfaces for Layer 2 Mode.......................................................................................................................	809
Enabling Spanning Tree Protocol Globally......................................................................................................................	810
Adding an Interface to the Spanning Tree Group..........................................................................................................	812
Modifying Global Parameters...........................................................................................................................................	812
Modifying Interface STP Parameters..............................................................................................................................	813
Enabling PortFast...............................................................................................................................................................	813
Prevent Network Disruptions with BPDU Guard.....................................................................................................	814
Selecting STP Root...........................................................................................................................................................	816
STP Root Guard.................................................................................................................................................................	816
Root Guard Scenario...................................................................................................................................................	816
Configuring Root Guard...............................................................................................................................................	817
Enabling SNMP Traps for Root Elections and Topology Changes..............................................................................	818
Configuring Spanning Trees as Hitless............................................................................................................................	818
STP Loop Guard.................................................................................................................................................................	818
Configuring Loop Guard..............................................................................................................................................	819
Displaying STP Guard Configuration..............................................................................................................................	820
52 SupportAssist.........................................................................................................................	821
Configuring SupportAssist Using a Configuration Wizard............................................................................................	821
Configuring SupportAssist Manually...............................................................................................................................	822
Configuring SupportAssist Activity.................................................................................................................................	823
Configuring SupportAssist Company..............................................................................................................................	825
Configuring SupportAssist Person..................................................................................................................................	825
Configuring SupportAssist Server...................................................................................................................................	826
Viewing SupportAssist Configuration.............................................................................................................................	827
53 System Time and Date............................................................................................................	829
Network Time Protocol....................................................................................................................................................	829
Protocol Overview......................................................................................................................................................	830
Configure the Network Time Protocol.....................................................................................................................	830
Enabling NTP...............................................................................................................................................................	830

Contents 25

Configuring NTP Broadcasts......................................................................................................................................	831
Disabling NTP on an Interface....................................................................................................................................	831
Configuring a Source IP Address for NTP Packets.................................................................................................	831
Configuring NTP Authentication...............................................................................................................................	832
Configuring NTP control key password....................................................................................................................	834
Configuring the NTP Step-Threshold.......................................................................................................................	834
Configuring a Custom-defined Period for NTP time Synchronization.................................................................	834
Dell EMC Networking OS Time and Date......................................................................................................................	835
Configuration Task List ..............................................................................................................................................	835
Setting the Time and Date for the Switch Software Clock...................................................................................	835
Setting the Timezone.................................................................................................................................................	835
Set Daylight Saving Time...........................................................................................................................................	836
Setting Daylight Saving Time Once..........................................................................................................................	836
Setting Recurring Daylight Saving Time...................................................................................................................	836
54 Tunneling...............................................................................................................................	838
Configuring a Tunnel.........................................................................................................................................................	838
Configuring Tunnel Keepalive Settings...........................................................................................................................	839
Configuring a Tunnel Interface........................................................................................................................................	839
Configuring Tunnel Allow-Remote Decapsulation.........................................................................................................	840
Configuring Tunnel source anylocal Decapsulation.......................................................................................................	840
Guidelines for Configuring Multipoint Receive-Only Tunnels.......................................................................................	841
Multipoint Receive-Only Tunnels.....................................................................................................................................	841
55 Uplink Failure Detection (UFD)................................................................................................	842
Feature Description...........................................................................................................................................................	842
How Uplink Failure Detection Works..............................................................................................................................	843
UFD and NIC Teaming......................................................................................................................................................	844
Important Points to Remember.......................................................................................................................................	844
Configuring Uplink Failure Detection..............................................................................................................................	845
Clearing a UFD-Disabled Interface..................................................................................................................................	846
Displaying Uplink Failure Detection.................................................................................................................................	847
Sample Configuration: Uplink Failure Detection............................................................................................................	848
56 Upgrade Procedures...............................................................................................................	850
57 Virtual LANs (VLANs)..............................................................................................................	851
Default VLAN......................................................................................................................................................................	851
Port-Based VLANs............................................................................................................................................................	852
VLANs and Port Tagging.................................................................................................................................................	852
Configuration Task List.....................................................................................................................................................	853
Creating a Port-Based VLAN.....................................................................................................................................	853
Assigning Interfaces to a VLAN.................................................................................................................................	853
Moving Untagged Interfaces.....................................................................................................................................	854
Assigning an IP Address to a VLAN..........................................................................................................................	855
Configuring Native VLANs...............................................................................................................................................	856
Enabling Null VLAN as the Default VLAN......................................................................................................................	856
58 Virtual Link Trunking (VLT).....................................................................................................	857

26 Contents

Overview............................................................................................................................................................................	857
VLT Terminology.........................................................................................................................................................	859
Layer-2 Traffic in VLT Domains.................................................................................................................................	859
Interspersed VLANs....................................................................................................................................................	860
VLT on Core Switches.................................................................................................................................................	861
Enhanced VLT..............................................................................................................................................................	861
Configure Virtual Link Trunking.......................................................................................................................................	862
Important Points to Remember.................................................................................................................................	862
Configuration Notes....................................................................................................................................................	863
Primary and Secondary VLT Peers...........................................................................................................................	866
RSTP and VLT.............................................................................................................................................................	866
VLT Bandwidth Monitoring........................................................................................................................................	867
VLT and Stacking........................................................................................................................................................	867
VLT and IGMP Snooping............................................................................................................................................	867
VLT IPv6.......................................................................................................................................................................	867
VLT Port Delayed Restoration...................................................................................................................................	867
PIM-Sparse Mode Support on VLT..........................................................................................................................	868
VLT Routing ................................................................................................................................................................	869
Non-VLT ARP Sync.....................................................................................................................................................	872
RSTP Configuration..........................................................................................................................................................	872
Preventing Forwarding Loops in a VLT Domain......................................................................................................	872
Sample RSTP configuration.......................................................................................................................................	873
Configuring VLT...........................................................................................................................................................	873
PVST+ Configuration........................................................................................................................................................	881
Peer Routing Configuration Example..............................................................................................................................	882
Dell-1 Switch Configuration........................................................................................................................................	883
Dell-2 Switch Configuration.......................................................................................................................................	887
R1 Configuration..........................................................................................................................................................	890
Access Switch A1 Configurations and Verification..................................................................................................	891
eVLT Configuration Example............................................................................................................................................	891
PIM-Sparse Mode Configuration Example....................................................................................................................	894
Verifying a VLT Configuration.........................................................................................................................................	894
Additional VLT Sample Configurations...........................................................................................................................	897
Troubleshooting VLT........................................................................................................................................................	899
Reconfiguring Stacked Switches as VLT.......................................................................................................................	900
Specifying VLT Nodes in a PVLAN.................................................................................................................................	900
Configuring a VLT VLAN or LAG in a PVLAN...............................................................................................................	903
Creating a VLT LAG or a VLT VLAN.........................................................................................................................	903
Associating the VLT LAG or VLT VLAN in a PVLAN..............................................................................................	904
Proxy ARP Capability on VLT Peer Nodes....................................................................................................................	905
VLT Nodes as Rendezvous Points for Multicast Resiliency........................................................................................	906
Configuring VLAN-Stack over VLT................................................................................................................................	906
IPv6 Peer Routing in VLT Domains Overview...............................................................................................................	909
Configure BFD in VLT Domain.........................................................................................................................................	913
Sample BFD configuration in VLT domain................................................................................................................	913
59 VLT Proxy Gateway.................................................................................................................	918
Proxy Gateway in VLT Domains.......................................................................................................................................	918
LLDP VLT Proxy Gateway in a Square VLT Topology............................................................................................	921
Configuring a Static VLT Proxy Gateway......................................................................................................................	922

Contents 27

Configuring an LLDP VLT Proxy Gateway.....................................................................................................................	922
VLT Proxy Gateway Sample Topology...........................................................................................................................	922
VLT Domain Configuration.........................................................................................................................................	923
Dell-1 VLT Configuration.............................................................................................................................................	923
Dell-2 VLT Configuration............................................................................................................................................	924
Dell-3 VLT Configuration............................................................................................................................................	925
Dell-4 VLT Configuration............................................................................................................................................	926
60 Virtual Extensible LAN (VXLAN)...............................................................................................	927
Components of VXLAN network....................................................................................................................................	928
Functional Overview of VXLAN Gateway......................................................................................................................	928
VXLAN Frame Format......................................................................................................................................................	929
Configuring and Controlling VXLAN from the NSX Controller GUI............................................................................	930
Configuring VxLAN Gateway...........................................................................................................................................	934
Connecting to an NVP Controller.............................................................................................................................	934
Advertising VXLAN Access Ports to Controller......................................................................................................	935
Displaying VXLAN Configurations...................................................................................................................................	935
Static Virtual Extensible LAN (VXLAN).........................................................................................................................	936
Configuring Static VXLAN.........................................................................................................................................	936
Limitations on VXLAN ................................................................................................................................................	937
Displaying Static VXLAN Configurations..................................................................................................................	937
Disabling MAC Address Learning on Static VXLAN Tunnels.................................................................................	938
Preserving 802.1 p value across VXLAN tunnels..........................................................................................................	939
RIOT....................................................................................................................................................................................	939
61 Virtual Routing and Forwarding (VRF)......................................................................................	940
VRF Overview...................................................................................................................................................................	940
VRF Configuration Notes..................................................................................................................................................	941
DHCP............................................................................................................................................................................	942
VRF Configuration.............................................................................................................................................................	942
Loading VRF CAM.......................................................................................................................................................	942
Creating a Non-Default VRF Instance......................................................................................................................	942
Assigning an Interface to a VRF................................................................................................................................	943
Assigning a Front-end Port to a Management VRF...............................................................................................	943
View VRF Instance Information.................................................................................................................................	943
Assigning an OSPF Process to a VRF Instance.......................................................................................................	943
Configuring VRRP on a VRF Instance......................................................................................................................	944
Configuring Management VRF..................................................................................................................................	944
Configuring a Static Route.........................................................................................................................................	945
Sample VRF Configuration...............................................................................................................................................	945
Route Leaking VRFs.........................................................................................................................................................	950
Dynamic Route Leaking....................................................................................................................................................	950
Configuring Route Leaking without Filtering Criteria..............................................................................................	951
Configuring Route Leaking with Filtering.................................................................................................................	953
62 Virtual Router Redundancy Protocol (VRRP)............................................................................	956
VRRP Overview................................................................................................................................................................	956
VRRP Benefits...................................................................................................................................................................	957
VRRP Implementation......................................................................................................................................................	957

28 Contents

VRRP Configuration.........................................................................................................................................................	958
Configuration Task List...............................................................................................................................................	958
Setting VRRP Initialization Delay...............................................................................................................................	965
Sample Configurations.....................................................................................................................................................	966
VRRP in a VRF Configuration....................................................................................................................................	970
VRRP for IPv6 Configuration.....................................................................................................................................	975
63 Debugging and Diagnostics......................................................................................................	979
Offline Diagnostics............................................................................................................................................................	979
Important Points to Remember.................................................................................................................................	979
Running Offline Diagnostics.......................................................................................................................................	979
Trace Logs.........................................................................................................................................................................	980
Auto Save on Crash or Rollover......................................................................................................................................	980
Hardware Watchdog Timer.............................................................................................................................................	980
Enabling Environmental Monitoring................................................................................................................................	980
Recognize an Overtemperature Condition..............................................................................................................	982
Troubleshoot an Over-temperature Condition........................................................................................................	982
Recognize an Under-Voltage Condition...................................................................................................................	982
Troubleshoot an Under-Voltage Condition..............................................................................................................	983
Buffer Tuning.....................................................................................................................................................................	983
Troubleshooting Packet Loss..........................................................................................................................................	984
Displaying Drop Counters...........................................................................................................................................	984
Dataplane Statistics....................................................................................................................................................	985
Display Stack Member Counters...............................................................................................................................	986
Enabling Application Core Dumps...................................................................................................................................	988
Mini Core Dumps...............................................................................................................................................................	988
Enabling TCP Dumps........................................................................................................................................................	989
64 Standards Compliance.............................................................................................................	991
IEEE Compliance................................................................................................................................................................	991
RFC and I-D Compliance..................................................................................................................................................	992
General Internet Protocols.........................................................................................................................................	992
General IPv4 Protocols...............................................................................................................................................	993
General IPv6 Protocols...............................................................................................................................................	994
Border Gateway Protocol (BGP)..............................................................................................................................	995
Open Shortest Path First (OSPF)............................................................................................................................	996
Intermediate System to Intermediate System (IS-IS)............................................................................................	996
Routing Information Protocol (RIP)..........................................................................................................................	997
Multicast.......................................................................................................................................................................	997
Network Management................................................................................................................................................	998
MIB Location....................................................................................................................................................................	1002
65 X.509v3................................................................................................................................	1004
Introduction to X.509v3 certificates.............................................................................................................................	1004
X.509v3 support in .........................................................................................................................................................	1005
Information about installing CA certificates.................................................................................................................	1006
Installing CA certificate.............................................................................................................................................	1007
Information about Creating Certificate Signing Requests (CSR).............................................................................	1007
Creating Certificate Signing Requests (CSR)........................................................................................................	1007

Contents 29

Information about installing trusted certificates..........................................................................................................	1008
Installing trusted certificates....................................................................................................................................	1008
Transport layer security (TLS).......................................................................................................................................	1008
Syslog over TLS.........................................................................................................................................................	1009
Online Certificate Status Protocol (OSCP).................................................................................................................	1009
Configuring OCSP setting on CA............................................................................................................................	1009
Configuring OCSP behavior.....................................................................................................................................	1009
Configuring Revocation Behavior.............................................................................................................................	1010
Configuring OSCP responder preference...............................................................................................................	1010
Verifying certificates........................................................................................................................................................	1010
Verifying Server certificates......................................................................................................................................	1010
Verifying Client Certificates......................................................................................................................................	1010
Event logging....................................................................................................................................................................	1010

30 Contents