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Networking Z9500

Dell Networking Z9500 User guide

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Dell Networking Configuration Guide for the
Z9500 Switch
9.8(0.0)
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
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.
Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell
â„¢
and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015 - 05
Rev. A00
Contents
1 About this Guide................................................................................................. 33
Audience..............................................................................................................................................33
Conventions........................................................................................................................................ 33
Related Documents............................................................................................................................ 33
2 Configuration Fundamentals........................................................................... 35
Accessing the Command Line............................................................................................................35
CLI Modes............................................................................................................................................35
Navigating CLI Modes................................................................................................................... 36
The do Command...............................................................................................................................39
Undoing Commands.......................................................................................................................... 40
Obtaining Help.................................................................................................................................... 41
Entering and Editing Commands........................................................................................................41
Command History...............................................................................................................................42
Filtering show Command Outputs.....................................................................................................43
Multiple Users in Configuration Mode............................................................................................... 45
3 Getting Started....................................................................................................46
Console Access...................................................................................................................................46
Serial Console................................................................................................................................47
Default Configuration.........................................................................................................................48
Configuring a Host Name...................................................................................................................48
Accessing the System Remotely........................................................................................................ 49
Accessing the Z9500 Remotely....................................................................................................49
Configure the Management Port IP Address............................................................................... 49
Configure a Management Route..................................................................................................49
Configuring a Username and Password.......................................................................................50
Configuring the Enable Password......................................................................................................50
Manage Configuration Files................................................................................................................ 51
File Storage.....................................................................................................................................51
Copy Files to and from the System...............................................................................................51
Save the Running-Configuration..................................................................................................53
Configure the Overload Bit for a Startup Scenario...................................................................... 53
Using HTTP for File Transfers........................................................................................................53
Changes in Configuration Files.....................................................................................................54
Enabling Software Features on Devices Using a Command Option................................................ 55
View Command History......................................................................................................................56
Upgrading the Dell Networking OS....................................................................................................56
3
Using Hashes to Validate Software Images........................................................................................56
4 Switch Management.......................................................................................... 58
Configuring Privilege Levels............................................................................................................... 58
Creating a Custom Privilege Level................................................................................................58
Removing a Command from EXEC Mode................................................................................... 58
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 59
Allowing Access to CONFIGURATION Mode Commands.......................................................... 59
Allowing Access to the Following Modes.................................................................................... 59
Applying a Privilege Level to a Username.....................................................................................61
Applying a Privilege Level to a Terminal Line............................................................................... 61
Configuring Logging........................................................................................................................... 61
Audit and Security Logs.................................................................................................................62
Configuring Logging Format ...................................................................................................... 64
Setting Up a Secure Connection to a Syslog Server....................................................................65
Track Login Activity.............................................................................................................................66
Restrictions for Tracking Login Activity........................................................................................66
Configuring Login Activity Tracking............................................................................................. 66
Display Login Statistics..................................................................................................................67
Limit Concurrent Login Sessions....................................................................................................... 68
Restrictions for Limiting the Number of Concurrent Sessions................................................... 68
Configuring Concurrent Session Limit.........................................................................................68
Enabling the System to Clear Existing Sessions...........................................................................68
Log Messages in the Internal Buffer...................................................................................................69
Configuration Task List for System Log Management................................................................ 69
Disabling System Logging...................................................................................................................70
Sending System Messages to a Syslog Server....................................................................................70
Configuring a UNIX System as a Syslog Server.............................................................................71
Display the Logging Buffer and the Logging Configuration..............................................................71
Changing System Logging Settings....................................................................................................72
Configuring a UNIX Logging Facility Level.........................................................................................73
Synchronizing Log Messages..............................................................................................................74
Enabling Timestamp on Syslog Messages..........................................................................................74
File Transfer Services...........................................................................................................................75
Configuration Task List for File Transfer Services........................................................................ 75
Enabling the FTP Server.................................................................................................................75
Configuring FTP Server Parameters..............................................................................................76
Configuring FTP Client Parameters.............................................................................................. 76
Terminal Lines......................................................................................................................................77
Denying and Permitting Access to a Terminal Line..................................................................... 77
Configuring Login Authentication for Terminal Lines................................................................. 78
Setting Time Out of EXEC Privilege Mode......................................................................................... 79
4
Using Telnet to Access Another Network Device..............................................................................79
Lock CONFIGURATION Mode........................................................................................................... 80
Viewing the Configuration Lock Status........................................................................................80
Recovering from a Forgotten Password on the Z9500.....................................................................81
Ignoring the Startup Configuration and Booting from the Factory-Default Configuration............ 82
Recovering from a Failed Start on the Z9500....................................................................................82
Restoring Factory-Default Settings.................................................................................................... 83
Important Points to Remember....................................................................................................83
Restoring Factory-Default Boot Environment Variables............................................................. 83
5 802.1X...................................................................................................................86
The Port-Authentication Process.......................................................................................................87
EAP over RADIUS...........................................................................................................................89
Configuring 802.1X............................................................................................................................. 89
Related Configuration Tasks.........................................................................................................89
Important Points to Remember......................................................................................................... 90
Enabling 802.1X................................................................................................................................... 91
Configuring Request Identity Re-Transmissions............................................................................... 92
Configuring a Quiet Period after a Failed Authentication........................................................... 93
Forcibly Authorizing or Unauthorizing a Port....................................................................................94
Re-Authenticating a Port.................................................................................................................... 95
Configuring Timeouts.........................................................................................................................96
Configuring Dynamic VLAN Assignment with Port Authentication.................................................. 97
Guest and Authentication-Fail VLANs................................................................................................98
Configuring a Guest VLAN............................................................................................................99
Configuring an Authentication-Fail VLAN....................................................................................99
6 Access Control Lists (ACLs).............................................................................101
IP Access Control Lists (ACLs).......................................................................................................... 102
CAM Usage.................................................................................................................................. 103
Implementing ACLs ....................................................................................................................104
IP Fragment Handling....................................................................................................................... 105
IP Fragments ACL Examples....................................................................................................... 105
Layer 4 ACL Rules Examples.......................................................................................................106
Configure a Standard IP ACL............................................................................................................ 107
Configuring a Standard IP ACL Filter..........................................................................................108
Configure an Extended IP ACL.........................................................................................................109
Configuring Filters with a Sequence Number............................................................................109
Configuring Filters Without a Sequence Number.......................................................................111
Configure Layer 2 and Layer 3 ACLs.................................................................................................112
Using ACL VLAN Groups................................................................................................................... 112
Guidelines for Configuring ACL VLAN Groups........................................................................... 113
5
Configuring an ACL VLAN Group................................................................................................113
Allocating ACL VLAN CAM...........................................................................................................114
Applying an IP ACL to an Interface................................................................................................... 115
Configure Ingress ACLs............................................................................................................... 116
Configure Egress ACLs................................................................................................................ 116
Applying Egress Layer 3 ACLs (Control-Plane)...........................................................................117
Counting ACL Hits....................................................................................................................... 118
IP Prefix Lists...................................................................................................................................... 118
Implementation Information.......................................................................................................119
Configuration Task List for Prefix Lists........................................................................................119
ACL Resequencing............................................................................................................................ 123
Resequencing an ACL or Prefix List............................................................................................123
Route Maps........................................................................................................................................125
Implementation Information.......................................................................................................125
Important Points to Remember........................................................................................................125
Configuration Task List for Route Maps..................................................................................... 125
Configuring Match Routes..........................................................................................................128
Configuring Set Conditions........................................................................................................ 129
Configure a Route Map for Route Redistribution...................................................................... 130
Configure a Route Map for Route Tagging................................................................................ 131
Continue Clause.......................................................................................................................... 131
Configuring UDF ACL........................................................................................................................132
7 Bare Metal Provisioning (BMP)....................................................................... 135
Enhanced Behavior of the stop bmp Command.............................................................................135
Removal of User-Defined String Parameter in the reload-type Command...................................135
Service Tag Information in the Option 60 String.............................................................................135
8 Bidirectional Forwarding Detection (BFD)...................................................136
How BFD Works................................................................................................................................ 136
BFD Packet Format......................................................................................................................137
BFD Sessions................................................................................................................................139
BFD Three-Way Handshake........................................................................................................139
Session State Changes................................................................................................................140
Important Points to Remember........................................................................................................ 141
Configure BFD................................................................................................................................... 141
Configure BFD for Static Routes.................................................................................................142
Configure BFD for OSPF............................................................................................................. 143
Configure BFD for OSPFv3..........................................................................................................147
Configure BFD for IS-IS.............................................................................................................. 148
Configure BFD for BGP................................................................................................................151
Configure BFD for VRRP............................................................................................................. 158
6
Configuring Protocol Liveness....................................................................................................161
9 Border Gateway Protocol IPv4 (BGPv4).......................................................162
Autonomous Systems (AS)................................................................................................................162
Sessions and Peers............................................................................................................................164
Establish a Session.......................................................................................................................165
Route Reflectors................................................................................................................................166
Communities...............................................................................................................................166
BGP Attributes................................................................................................................................... 167
Best Path Selection Criteria.........................................................................................................167
Weight..........................................................................................................................................169
Local Preference......................................................................................................................... 169
Multi-Exit Discriminators (MEDs)................................................................................................ 170
Origin............................................................................................................................................171
AS Path......................................................................................................................................... 172
Next Hop......................................................................................................................................172
Multiprotocol BGP.............................................................................................................................172
Implement BGP ................................................................................................................................ 173
Additional Path (Add-Path) Support............................................................................................173
Advertise IGP Cost as MED for Redistributed Routes.................................................................173
Ignore Router-ID for Some Best-Path Calculations.................................................................. 174
Four-Byte AS Numbers................................................................................................................174
AS4 Number Representation.......................................................................................................175
AS Number Migration.................................................................................................................. 176
BGP4 Management Information Base (MIB)...............................................................................178
Important Points to Remember..................................................................................................178
Configuration Information................................................................................................................179
BGP Configuration............................................................................................................................ 179
Enabling BGP...............................................................................................................................180
Configuring AS4 Number Representations................................................................................184
Configuring Peer Groups............................................................................................................ 185
Configuring BGP Fast Fail-Over................................................................................................. 188
Configuring Passive Peering.......................................................................................................190
Maintaining Existing AS Numbers During an AS Migration........................................................ 191
Allowing an AS Number to Appear in its Own AS Path..............................................................192
Enabling Neighbor Graceful Restart...........................................................................................193
Filtering on an AS-Path Attribute................................................................................................ 193
Regular Expressions as Filters..................................................................................................... 195
Redistributing Routes..................................................................................................................196
Enabling Additional Paths............................................................................................................197
Configuring IP Community Lists.................................................................................................197
Configuring an IP Extended Community List.............................................................................199
7
Filtering Routes with Community Lists......................................................................................200
Manipulating the COMMUNITY Attribute.................................................................................. 200
Changing MED Attributes........................................................................................................... 202
Changing the LOCAL_PREFERENCE Attribute.......................................................................... 203
Changing the NEXT_HOP Attribute........................................................................................... 203
Changing the WEIGHT Attribute................................................................................................204
Enabling Multipath......................................................................................................................204
Filtering BGP Routes...................................................................................................................205
Filtering BGP Routes Using Route Maps....................................................................................206
Filtering BGP Routes Using AS-PATH Information....................................................................207
Configuring BGP Route Reflectors............................................................................................ 208
Aggregating Routes.................................................................................................................... 208
Configuring BGP Confederations.............................................................................................. 209
Enabling Route Flap Dampening................................................................................................209
Changing BGP Timers................................................................................................................. 212
Enabling BGP Neighbor Soft-Reconfiguration...........................................................................213
Route Map Continue...................................................................................................................214
Enabling MBGP Configurations........................................................................................................ 215
BGP Regular Expression Optimization............................................................................................. 215
Debugging BGP.................................................................................................................................216
Storing Last and Bad PDUs..........................................................................................................217
Capturing PDUs...........................................................................................................................218
PDU Counters..............................................................................................................................219
Sample Configurations..................................................................................................................... 219
10 Content Addressable Memory (CAM).........................................................229
CAM Allocation................................................................................................................................. 229
Test CAM Usage................................................................................................................................ 231
View CAM-ACL Settings....................................................................................................................231
View CAM Usage...............................................................................................................................232
Return to the Default CAM Configuration....................................................................................... 233
CAM Optimization............................................................................................................................ 234
Applications for CAM Profiling......................................................................................................... 234
LAG HashingLAG Hashing Based on Bidirectional Flow........................................................... 234
Unified Forwarding Table (UFT) Modes........................................................................................... 234
Configuring UFT Modes..............................................................................................................235
11 Control Plane Policing (CoPP)..................................................................... 236
Z9500 CoPP Implementation.......................................................................................................... 236
Protocol-based Control Plane Policing.....................................................................................236
Queue-based Control Plane Policing........................................................................................ 237
CoPP Example...................................................................................................................................238
8
Configure Control Plane Policing.................................................................................................... 239
Configuring CoPP for Protocols................................................................................................ 239
Examples of Configuring CoPP for Protocols............................................................................241
Configuring CoPP for CPU Queues...........................................................................................242
Examples of Configuring CoPP for CPU Queues......................................................................243
Displaying CoPP Configuration..................................................................................................243
Troubleshooting CoPP Operation................................................................................................... 247
Enabling CPU Traffic Statistics....................................................................................................247
Viewing CPU Traffic Statistics.....................................................................................................247
Troubleshooting CPU Packet Loss............................................................................................ 248
Viewing Per-Protocol CoPP Counters.......................................................................................250
Viewing Per-Queue CoPP Counters..........................................................................................253
12 Data Center Bridging (DCB)......................................................................... 254
Ethernet Enhancements in Data Center Bridging........................................................................... 254
Priority-Based Flow Control....................................................................................................... 255
Enhanced Transmission Selection............................................................................................. 256
Data Center Bridging Exchange Protocol (DCBx)......................................................................257
Data Center Bridging in a Traffic Flow.......................................................................................258
Priority-Based Flow Control.............................................................................................................258
Enhanced Transmission Selection...................................................................................................260
Data Center Bridging Exchange Protocol (DCBx)........................................................................... 261
Enabling Data Center Bridging......................................................................................................... 261
DCB Maps and its Attributes.......................................................................................................262
Data Center Bridging: Default Configuration.................................................................................. 265
Configuring Priority-Based Flow Control........................................................................................265
Configuring Lossless Queues.....................................................................................................266
Configuring PFC and ETS in a DCB Map......................................................................................... 268
PFC Configuration Notes........................................................................................................... 268
PFC Prerequisites and Restrictions.............................................................................................269
ETS Configuration Notes............................................................................................................269
ETS Prerequisites and Restrictions............................................................................................. 270
Applying a DCB Map on a Port......................................................................................................... 271
Configuring PFC without a DCB Map...............................................................................................271
Configuring Lossless QueuesExample:......................................................................................272
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................274
Pause and Resume of Traffic......................................................................................................274
Buffer Sizes for Lossless or PFC Packets....................................................................................274
Behavior of Tagged Packets............................................................................................................. 275
Operations on Untagged Packets.................................................................................................... 275
Configuration Example for DSCP and PFC Priorities.......................................................................276
SNMP Support for PFC and Buffer Statistics Tracking.....................................................................277
9
Generation of PFC for a Priority for Untagged Packets...................................................................277
Performing PFC Using DSCP Bits Instead of 802.1p Bits................................................................ 278
PFC and ETS Configuration Examples............................................................................................. 279
Using PFC to Manage Converged Ethernet Traffic......................................................................... 279
Configure Enhanced Transmission Selection..................................................................................279
ETS Prerequisites and Restrictions............................................................................................. 279
Creating an ETS Priority Group...................................................................................................279
ETS Operation with DCBx...........................................................................................................281
Configuring Bandwidth Allocation for DCBx CIN......................................................................281
Hierarchical Scheduling in ETS Output Policies..............................................................................282
Applying the DCB Policies on Linecard........................................................................................... 283
Applying DCB Policies on SFM Ports............................................................................................... 283
Using PFC and ETS to Manage Converged Ethernet Traffic...........................................................284
Configure a DCBx Operation...........................................................................................................284
DCBx Operation..........................................................................................................................284
DCBx Port Roles..........................................................................................................................284
DCB Configuration Exchange.................................................................................................... 286
Configuration Source Election................................................................................................... 287
Propagation of DCB Information............................................................................................... 287
Auto-Detection and Manual Configuration of the DCBx Version............................................288
DCBx Example............................................................................................................................ 288
DCBx Prerequisites and Restrictions..........................................................................................289
Configuring DCBx.......................................................................................................................289
Verifying the DCB Configuration..................................................................................................... 293
QoS dot1p Traffic Classification and Queue Assignment...............................................................304
Configuring the Dynamic Buffer Method........................................................................................ 305
Using PFC and ETS to Manage Data Center Traffic........................................................................ 307
PFC and ETS Configuration Command Examples.................................................................... 309
13 Debugging and Diagnostics......................................................................... 310
Offline Diagnostics............................................................................................................................310
Important Points to Remember..................................................................................................310
Running Offline Diagnostics....................................................................................................... 310
Examples of Running Offline Diagnostics.................................................................................. 312
TRACE Logs.......................................................................................................................................320
Auto Save on Reload, Crash, or Rollover...................................................................................320
Last Restart Reason.......................................................................................................................... 320
Line Card Restart Causes and Reasons......................................................................................320
show hardware Commands.............................................................................................................320
Environmental Monitoring................................................................................................................322
Display Power Supply Status.......................................................................................................322
Display Fan Status....................................................................................................................... 323
10
Display Transceiver Type............................................................................................................ 324
Recognize an Over-Temperature Condition.............................................................................326
Troubleshoot an Over-Temperature Condition........................................................................ 327
Troubleshooting Packet Loss...........................................................................................................328
Displaying Drop Counters.......................................................................................................... 329
Displaying Dataplane Statistics................................................................................................... 331
Displaying Line-Card Counters.................................................................................................. 333
Accessing Application Core Dumps.................................................................................................334
Mini Core Dumps.............................................................................................................................. 335
Full Kernel Core Dumps....................................................................................................................335
Enabling TCP Dumps........................................................................................................................336
14 Dynamic Host Configuration Protocol (DHCP)........................................ 337
DHCP Packet Format and Options...................................................................................................337
Assign an IP Address using DHCP....................................................................................................339
Implementation Information............................................................................................................340
Configure the System to be a DHCP Server.................................................................................... 341
Configuring the Server for Automatic Address Allocation........................................................ 341
Specifying a Default Gateway.....................................................................................................343
Configure a Method of Hostname Resolution.......................................................................... 343
Using DNS for Address Resolution.............................................................................................343
Using NetBIOS WINS for Address Resolution............................................................................ 343
Creating Manual Binding Entries................................................................................................344
Debugging the DHCP Server......................................................................................................344
Using DHCP Clear Commands.................................................................................................. 344
Configure the System to be a Relay Agent......................................................................................345
Configure the System to be a DHCP Client.....................................................................................347
DHCP Client on a Management Interface................................................................................. 347
DHCP Client Operation with Other Features............................................................................ 348
Configure Secure DHCP...................................................................................................................348
Option 82.................................................................................................................................... 349
DHCP Snooping..........................................................................................................................349
Drop DHCP Packets on Snooped VLANs Only..........................................................................353
Dynamic ARP Inspection............................................................................................................ 353
Configuring Dynamic ARP Inspection........................................................................................355
Source Address Validation................................................................................................................356
Enabling IP Source Address Validation.......................................................................................356
DHCP MAC Source Address Validation......................................................................................356
Enabling IP+MAC Source Address Validation............................................................................ 357
Viewing the Number of SAV Dropped Packets..........................................................................357
Clearing the Number of SAV Dropped Packets.........................................................................358
11
15 Equal Cost Multi-Path (ECMP)..................................................................... 359
ECMP for Flow-Based Affinity.......................................................................................................... 359
Enabling Deterministic ECMP Next Hop....................................................................................359
Configuring the Hash Algorithm Seed....................................................................................... 359
Link Bundle Monitoring.................................................................................................................... 360
Managing ECMP Group Paths.....................................................................................................361
Creating an ECMP Group Bundle............................................................................................... 361
Modifying the ECMP Group Threshold......................................................................................362
ECMP Support in L3 Host and LPM Tables...................................................................................... 362
16 FCoE Transit.................................................................................................... 364
Fibre Channel over Ethernet............................................................................................................ 364
Ensure Robustness in a Converged Ethernet Network...................................................................364
FIP Snooping on Ethernet Bridges................................................................................................... 366
Using FIP Snooping...........................................................................................................................368
FIP Snooping Prerequisites.........................................................................................................368
Important Points to Remember................................................................................................. 369
Enabling the FCoE Transit Feature............................................................................................. 370
Enable FIP Snooping on VLANs..................................................................................................370
Configure the FC-MAP Value..................................................................................................... 370
Configure a Port for a Bridge-to-Bridge Link............................................................................370
Configure a Port for a Bridge-to-FCF Link.................................................................................371
Impact on Other Software Features........................................................................................... 371
FIP Snooping Restrictions............................................................................................................371
Configuring FIP Snooping...........................................................................................................372
FCoE Transit Configuration Example............................................................................................... 373
Displaying FIP Snooping Information...............................................................................................374
17 Enabling FIPS Cryptography.........................................................................381
Configuration Tasks.......................................................................................................................... 381
Preparing the System........................................................................................................................ 381
Enabling FIPS Mode.......................................................................................................................... 382
Generating Host-Keys...................................................................................................................... 382
Monitoring FIPS Mode Status........................................................................................................... 383
Disabling FIPS Mode......................................................................................................................... 383
18 Flex Hash..........................................................................................................385
Flex Hash Capability Overview......................................................................................................... 385
Configuring the Flex Hash Mechanism............................................................................................385
RDMA Over Converged Ethernet (RoCE) Overview........................................................................386
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces............................................................. 387
12
19 Force10 Resilient Ring Protocol (FRRP).....................................................389
Protocol Overview............................................................................................................................389
Ring Status.................................................................................................................................. 390
Multiple FRRP Rings.....................................................................................................................391
Important FRRP Points................................................................................................................ 391
Important FRRP Concepts..........................................................................................................392
Implementing FRRP.......................................................................................................................... 393
FRRP Configuration.......................................................................................................................... 393
Creating the FRRP Group........................................................................................................... 394
Configuring the Control VLAN...................................................................................................394
Configuring and Adding the Member VLANs.............................................................................395
Setting the FRRP Timers............................................................................................................. 396
Clearing the FRRP Counters....................................................................................................... 397
Viewing the FRRP Configuration................................................................................................ 397
Viewing the FRRP Information....................................................................................................397
Troubleshooting FRRP......................................................................................................................398
Configuration Checks.................................................................................................................398
Sample Configuration and Topology.............................................................................................. 398
20 GARP VLAN Registration Protocol (GVRP)............................................... 400
Important Points to Remember.......................................................................................................400
Configure GVRP................................................................................................................................401
Related Configuration Tasks.......................................................................................................401
Enabling GVRP Globally................................................................................................................... 402
Enabling GVRP on a Layer 2 Interface.............................................................................................402
Configure GVRP Registration...........................................................................................................402
Configure a GARP Timer.................................................................................................................. 403
21 Internet Group Management Protocol (IGMP).........................................405
IGMP Implementation Information..................................................................................................405
IGMP Protocol Overview..................................................................................................................405
IGMP Version 2........................................................................................................................... 405
IGMP Version 3............................................................................................................................407
Configure IGMP................................................................................................................................ 410
Related Configuration Tasks.......................................................................................................410
Viewing IGMP Enabled Interfaces.....................................................................................................411
Selecting an IGMP Version................................................................................................................411
Viewing IGMP Groups.......................................................................................................................412
Adjusting Timers................................................................................................................................412
Adjusting Query and Response Timers...................................................................................... 412
Adjusting the IGMP Querier Timeout Value...............................................................................413
13
Configuring a Static IGMP Group.....................................................................................................413
Enabling IGMP Immediate-Leave.....................................................................................................414
IGMP Snooping................................................................................................................................. 414
IGMP Snooping Implementation Information........................................................................... 414
Configuring IGMP Snooping.......................................................................................................415
Removing a Group-Port Association..........................................................................................415
Disabling Multicast Flooding.......................................................................................................416
Specifying a Port as Connected to a Multicast Router..............................................................416
Configuring the Switch as Querier.............................................................................................416
Fast Convergence after MSTP Topology Changes..........................................................................417
Designating a Multicast Router Interface......................................................................................... 417
22 Interfaces.........................................................................................................418
Basic Interface Configuration...........................................................................................................418
Advanced Interface Configuration................................................................................................... 418
Port Numbering Convention............................................................................................................418
Interface Types..................................................................................................................................419
View Basic Interface Information.....................................................................................................420
Enabling a Physical Interface............................................................................................................421
Physical Interfaces............................................................................................................................ 422
Port Pipes.................................................................................................................................... 422
Network Processing Units (NPUs)..............................................................................................423
Configuration Task List for Physical Interfaces..........................................................................423
Overview of Layer Modes........................................................................................................... 423
Configuring Layer 2 (Data Link) Mode....................................................................................... 424
Configuring Layer 2 (Interface) Mode........................................................................................424
Configuring Layer 3 (Network) Mode........................................................................................ 424
Configuring Layer 3 (Interface) Mode........................................................................................ 425
Egress Interface Selection (EIS)........................................................................................................426
Important Points to Remember................................................................................................. 426
Configuring EIS........................................................................................................................... 426
Management Interfaces....................................................................................................................427
Configuring a Dedicated Management Interface ..................................................................... 427
Configuring a Management Interface on an Ethernet Port...................................................... 428
VLAN Interfaces................................................................................................................................ 429
Loopback Interfaces.........................................................................................................................430
Null Interfaces................................................................................................................................... 431
Port Channel Interfaces.................................................................................................................... 431
Port Channel Definition and Standards......................................................................................431
Port Channel Benefits.................................................................................................................432
Port Channel Implementation....................................................................................................432
10/40 Gbps Interfaces in Port Channels....................................................................................432
14
Configuration Tasks for Port Channel Interfaces...................................................................... 433
Creating a Port Channel............................................................................................................. 433
Adding a Physical Interface to a Port Channel.......................................................................... 434
Reassigning an Interface to a New Port Channel......................................................................436
Configuring the Minimum Oper Up Links in a Port Channel....................................................436
Adding or Removing a Port Channel from a VLAN....................................................................437
Assigning an IP Address to a Port Channel................................................................................ 437
Deleting or Disabling a Port Channel.........................................................................................438
Load Balancing Through Port Channels....................................................................................438
Load-Balancing Methods........................................................................................................... 438
Changing the Hash Algorithm....................................................................................................439
Bulk Configuration........................................................................................................................... 440
Interface Range...........................................................................................................................440
Bulk Configuration Examples.....................................................................................................440
Defining Interface Range Macros.................................................................................................... 442
Define the Interface Range.........................................................................................................443
Choosing an Interface-Range Macro........................................................................................ 443
Monitoring and Maintaining Interfaces............................................................................................443
Displaying Traffic Statistics on HiGig Ports......................................................................................444
Link Bundle Monitoring.................................................................................................................... 445
Monitoring HiGig Link Bundles........................................................................................................ 445
Guidelines for Monitoring HiGig Link-Bundles ........................................................................ 446
Enabling HiGig Link-Bundle Monitoring.................................................................................... 447
Fanning out 40G Ports Dynamically................................................................................................448
Splitting QSFP Ports to SFP+ Ports.................................................................................................. 448
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port......................................................448
Link Dampening................................................................................................................................453
Important Points to Remember................................................................................................. 454
Enabling Link Dampening...........................................................................................................454
Using Ethernet Pause Frames for Flow Control.............................................................................. 456
Enabling Pause Frames...............................................................................................................456
Configure the MTU Size on an Interface......................................................................................... 457
Auto-Negotiation on Ethernet Interfaces........................................................................................458
Set Auto-Negotiation Options................................................................................................... 458
View Advanced Interface Information............................................................................................. 459
Configuring the Interface Sampling Size...................................................................................460
Dynamic Counters............................................................................................................................ 461
Clearing Interface Counters....................................................................................................... 461
23 Internet Protocol Security (IPSec).............................................................. 463
Configuring IPSec ............................................................................................................................464
15
24 IPv4 Routing................................................................................................... 465
IP Addresses......................................................................................................................................465
Implementation Information......................................................................................................465
Configuration Tasks for IP Addresses.............................................................................................. 466
Assigning IP Addresses to an Interface............................................................................................466
Configuring Static Routes.................................................................................................................467
Configure Static Routes for the Management Interface.................................................................468
Enabling Directed Broadcast............................................................................................................469
Resolution of Host Names............................................................................................................... 469
Enabling Dynamic Resolution of Host Names................................................................................ 469
Specifying the Local System Domain and a List of Domains..........................................................470
Configuring DNS with Traceroute................................................................................................... 470
ARP.....................................................................................................................................................471
Configuration Tasks for ARP.............................................................................................................472
Configuring Static ARP Entries......................................................................................................... 472
Enabling Proxy ARP...........................................................................................................................473
Clearing ARP Cache..........................................................................................................................473
ARP Learning via Gratuitous ARP......................................................................................................473
Enabling ARP Learning via Gratuitous ARP...................................................................................... 474
ARP Learning via ARP Request......................................................................................................... 474
Configuring ARP Retries................................................................................................................... 475
ICMP.................................................................................................................................................. 476
Configuration Tasks for ICMP.......................................................................................................... 476
Enabling ICMP Unreachable Messages............................................................................................476
UDP Helper....................................................................................................................................... 476
Configure UDP Helper................................................................................................................476
Important Points to Remember..................................................................................................477
Enabling UDP Helper........................................................................................................................ 477
Configuring a Broadcast Address.....................................................................................................477
Configurations Using UDP Helper................................................................................................... 478
UDP Helper with Broadcast-All Addresses...................................................................................... 478
UDP Helper with Subnet Broadcast Addresses............................................................................... 479
UDP Helper with Configured Broadcast Addresses........................................................................480
UDP Helper with No Configured Broadcast Addresses..................................................................480
Troubleshooting UDP Helper........................................................................................................... 481
25 IPv6 Routing................................................................................................... 482
Protocol Overview............................................................................................................................482
Extended Address Space............................................................................................................ 482
Stateless Autoconfiguration....................................................................................................... 482
IPv6 Headers............................................................................................................................... 483
16
IPv6 Header Fields...................................................................................................................... 484
Extension Header Fields............................................................................................................. 486
IPv6 Addressing...........................................................................................................................487
IPv6 Implementation on the Dell Networking OS.......................................................................... 488
Configuring the LPM Table for IPv6 Extended Prefixes..................................................................490
ICMPv6..............................................................................................................................................490
Path MTU Discovery..........................................................................................................................491
IPv6 Neighbor Discovery.................................................................................................................. 491
IPv6 Neighbor Discovery of MTU Packets.................................................................................492
Configuring the IPv6 Recursive DNS Server.............................................................................. 492
Secure Shell (SSH) Over an IPv6 Transport......................................................................................495
Configuration Tasks for IPv6............................................................................................................495
Adjusting Your CAM Profile........................................................................................................ 495
Assigning an IPv6 Address to an Interface.................................................................................496
Assigning a Static IPv6 Route..................................................................................................... 496
Configuring Telnet with IPv6......................................................................................................497
SNMP over IPv6...........................................................................................................................497
Displaying IPv6 Information....................................................................................................... 498
Displaying an IPv6 Configuration...............................................................................................498
Displaying IPv6 Routes............................................................................................................... 499
Displaying the Running Configuration for an Interface............................................................500
Clearing IPv6 Routes...................................................................................................................501
26 iSCSI Optimization.........................................................................................502
iSCSI Optimization Overview........................................................................................................... 502
Default iSCSI Optimization Values...................................................................................................504
iSCSI Optimization Prerequisites..................................................................................................... 504
Configuring iSCSI Optimization.......................................................................................................504
Displaying iSCSI Optimization Information..................................................................................... 507
Enable and Disable iSCSI Optimization........................................................................................... 508
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..............................................509
Monitoring iSCSI Traffic Flows.........................................................................................................509
Information Monitored in iSCSI Traffic Flows................................................................................. 509
Detection and Auto-Configuration for Dell EqualLogic Arrays...................................................... 510
Configuring Detection and Ports for Dell Compellent Arrays.........................................................511
Application of Quality of Service to iSCSI Traffic Flows...................................................................511
27 Intermediate System to Intermediate System...........................................513
IS-IS Protocol Overview....................................................................................................................513
IS-IS Addressing.................................................................................................................................513
Multi-Topology IS-IS.........................................................................................................................514
Transition Mode...........................................................................................................................515
17
Interface Support.........................................................................................................................515
Adjacencies..................................................................................................................................515
Graceful Restart.................................................................................................................................515
Timers.......................................................................................................................................... 516
Implementation Information............................................................................................................ 516
Configuration Information................................................................................................................ 517
Configuration Tasks for IS-IS...................................................................................................... 517
Configuring the Distance of a Route......................................................................................... 526
Changing the IS-Type................................................................................................................. 527
Redistributing IPv4 Routes..........................................................................................................530
Redistributing IPv6 Routes..........................................................................................................530
Configuring Authentication Passwords......................................................................................531
Setting the Overload Bit..............................................................................................................532
Debugging IS-IS.......................................................................................................................... 533
IS-IS Metric Styles............................................................................................................................. 534
Configure Metric Values................................................................................................................... 534
Maximum Values in the Routing Table.......................................................................................535
Change the IS-IS Metric Style in One Level Only...................................................................... 535
Leaks from One Level to Another...............................................................................................537
Sample Configurations..................................................................................................................... 537
28 Link Aggregation Control Protocol (LACP)...............................................540
Introduction to Dynamic LAGs and LACP....................................................................................... 540
Important Points to Remember................................................................................................. 540
LACP Modes................................................................................................................................ 541
Configuring LACP Commands................................................................................................... 541
LACP Configuration Tasks................................................................................................................542
Creating a LAG............................................................................................................................ 542
Configuring the LAG Interfaces as Dynamic..............................................................................543
Setting the LACP Long Timeout.................................................................................................543
Monitoring and Debugging LACP.............................................................................................. 544
Shared LAG State Tracking...............................................................................................................544
Configuring Shared LAG State Tracking.....................................................................................545
Important Points about Shared LAG State Tracking..................................................................546
LACP Basic Configuration Example................................................................................................. 547
Configure a LAG on ALPHA........................................................................................................ 547
29 Layer 2.............................................................................................................. 555
Manage the MAC Address Table...................................................................................................... 555
Clearing the MAC Address Table................................................................................................555
Setting the Aging Time for Dynamic Entries..............................................................................555
Configuring a Static MAC Address............................................................................................. 556
18
Displaying the MAC Address Table.............................................................................................556
MAC Learning Limit...........................................................................................................................556
Setting the MAC Learning Limit.................................................................................................. 557
mac learning-limit Dynamic....................................................................................................... 557
mac learning-limit mac-address-sticky.....................................................................................558
mac learning-limit station-move............................................................................................... 558
mac learning-limit no-station-move.........................................................................................558
Learning Limit Violation Actions.................................................................................................559
Setting Station Move Violation Actions......................................................................................559
Recovering from Learning Limit and Station Move Violations..................................................560
NIC Teaming.....................................................................................................................................560
Configure Redundant Pairs.............................................................................................................. 562
Important Points about Configuring Redundant Pairs..............................................................563
Far-End Failure Detection................................................................................................................ 565
FEFD State Changes....................................................................................................................566
Configuring FEFD........................................................................................................................ 567
Enabling FEFD on an Interface...................................................................................................568
Debugging FEFD......................................................................................................................... 569
30 Link Layer Discovery Protocol (LLDP)........................................................570
802.1AB (LLDP) Overview................................................................................................................. 570
Protocol Data Units.....................................................................................................................570
Optional TLVs.................................................................................................................................... 571
Management TLVs.......................................................................................................................572
TIA-1057 (LLDP-MED) Overview...................................................................................................... 574
TIA Organizationally Specific TLVs............................................................................................. 574
Configure LLDP.................................................................................................................................579
Related Configuration Tasks.......................................................................................................579
Important Points to Remember..................................................................................................579
LLDP Compatibility......................................................................................................................579
CONFIGURATION versus INTERFACE Configurations....................................................................579
Enabling LLDP...................................................................................................................................580
Disabling and Undoing LLDP......................................................................................................580
Enabling LLDP on Management Ports.............................................................................................580
Disabling and Undoing LLDP on Management Ports................................................................ 581
Advertising TLVs................................................................................................................................ 581
Viewing the LLDP Configuration......................................................................................................582
Viewing Information Advertised by Adjacent LLDP Agents.............................................................583
Configuring LLDPDU Intervals......................................................................................................... 584
Configuring Transmit and Receive Mode........................................................................................ 585
Configuring a Time to Live...............................................................................................................586
Debugging LLDP...............................................................................................................................586
19
Relevant Management Objects........................................................................................................ 587
31 Microsoft Network Load Balancing............................................................594
NLB Unicast and Multicast Modes................................................................................................... 594
NLB Unicast Mode Example....................................................................................................... 594
NLB Multicast Mode Example.....................................................................................................595
NLB Benefits......................................................................................................................................595
NLB Restrictions................................................................................................................................595
NLB VLAN Flooding.......................................................................................................................... 596
Configuring NLB on a Switch...........................................................................................................596
..................................................................................................................................................... 596
32 Multicast Source Discovery Protocol (MSDP)...........................................598
Protocol Overview............................................................................................................................598
Anycast RP........................................................................................................................................ 600
Implementation Information........................................................................................................... 600
Configure Multicast Source Discovery Protocol.............................................................................600
Related Configuration Tasks.......................................................................................................601
Enable MSDP.....................................................................................................................................605
Manage the Source-Active Cache...................................................................................................606
Viewing the Source-Active Cache.............................................................................................606
Limiting the Source-Active Cache............................................................................................. 607
Clearing the Source-Active Cache.............................................................................................607
Enabling the Rejected Source-Active Cache.............................................................................607
Accept Source-Active Messages that Fail the RFP Check.............................................................. 607
Specifying Source-Active Messages................................................................................................. 611
Limiting the Source-Active Messages from a Peer..........................................................................612
Preventing MSDP from Caching a Local Source............................................................................. 612
Preventing MSDP from Caching a Remote Source......................................................................... 613
Preventing MSDP from Advertising a Local Source.........................................................................614
Logging Changes in Peership States................................................................................................ 615
Terminating a Peership..................................................................................................................... 615
Clearing Peer Statistics..................................................................................................................... 616
Debugging MSDP..............................................................................................................................616
MSDP with Anycast RP...................................................................................................................... 617
Configuring Anycast RP.................................................................................................................... 618
Reducing Source-Active Message Flooding.............................................................................. 619
Specifying the RP Address Used in SA Messages.......................................................................619
MSDP Sample Configurations.......................................................................................................... 622
33 Multiple Spanning Tree Protocol (MSTP).................................................. 625
Protocol Overview............................................................................................................................625
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