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Networking Z9500

Dell Networking Z9500 Specification

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Dell Networking Configuration Guide for the
Z9500 Switch
Version 9.5(0.1)
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 © 2014 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.
2014 - 07
Rev. A01
Contents
1 About this Guide................................................................................................. 30
Audience..............................................................................................................................................30
Conventions........................................................................................................................................30
Related Documents............................................................................................................................ 30
2 Configuration Fundamentals............................................................................31
Accessing the Command Line............................................................................................................ 31
CLI Modes............................................................................................................................................ 31
Navigating CLI Modes................................................................................................................... 34
The do Command............................................................................................................................... 37
Undoing Commands...........................................................................................................................38
Obtaining Help.................................................................................................................................... 39
Entering and Editing Commands....................................................................................................... 39
Command History.............................................................................................................................. 40
Filtering show Command Outputs.....................................................................................................40
Multiple Users in Configuration Mode............................................................................................... 42
3 Getting Started....................................................................................................43
Console Access...................................................................................................................................43
Serial Console................................................................................................................................43
Default Configuration......................................................................................................................... 44
Configuring a Host Name...................................................................................................................44
Accessing the System Remotely.........................................................................................................45
Accessing the Z9500 Remotely....................................................................................................45
Configure the Management Port IP Address............................................................................... 45
Configure a Management Route..................................................................................................46
Configuring a Username and Password.......................................................................................46
Configuring the Enable Password......................................................................................................46
Manage Configuration Files................................................................................................................47
File Storage.................................................................................................................................... 47
Copy Files to and from the System.............................................................................................. 47
Save the Running-Configuration..................................................................................................49
Configure the Overload Bit for a Startup Scenario......................................................................49
Viewing Files..................................................................................................................................49
Changes in Configuration Files.................................................................................................... 50
View Command History...................................................................................................................... 51
Upgrading the Dell Networking OS.................................................................................................... 51
Using Hashes to Validate Software Images........................................................................................ 51
4 Switch Management.......................................................................................... 53
Configuring Privilege Levels................................................................................................................53
Creating a Custom Privilege Level................................................................................................53
Removing a Command from EXEC Mode....................................................................................53
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 53
Allowing Access to CONFIGURATION Mode Commands.......................................................... 54
Allowing Access to the Following Modes.................................................................................... 54
Applying a Privilege Level to a Username.................................................................................... 56
Applying a Privilege Level to a Terminal Line...............................................................................56
Configuring Logging...........................................................................................................................56
Audit and Security Logs.................................................................................................................57
Configuring Logging Format ...................................................................................................... 58
Setting Up a Secure Connection to a Syslog Server....................................................................59
Log Messages in the Internal Buffer...................................................................................................60
Configuration Task List for System Log Management................................................................ 60
Disabling System Logging.................................................................................................................. 60
Sending System Messages to a Syslog Server....................................................................................61
Configuring a UNIX System as a Syslog Server............................................................................ 61
Display the Logging Buffer and the Logging Configuration..............................................................61
Changing System Logging Settings....................................................................................................62
Configuring a UNIX Logging Facility Level.........................................................................................63
Synchronizing Log Messages............................................................................................................. 64
Enabling Timestamp on Syslog Messages......................................................................................... 64
File Transfer Services...........................................................................................................................65
Configuration Task List for File Transfer Services........................................................................65
Enabling the FTP Server................................................................................................................ 65
Configuring FTP Server Parameters............................................................................................. 66
Configuring FTP Client Parameters..............................................................................................66
Terminal Lines..................................................................................................................................... 67
Denying and Permitting Access to a Terminal Line..................................................................... 67
Configuring Login Authentication for Terminal Lines................................................................. 67
Setting Time Out of EXEC Privilege Mode......................................................................................... 68
Using Telnet to Access Another Network Device............................................................................. 69
Lock CONFIGURATION Mode............................................................................................................70
Viewing the Configuration Lock Status........................................................................................70
Recovering from a Forgotten Password on the Z9500..................................................................... 71
Ignoring the Startup Configuration and Booting from the Factory-Default Configuration.............71
Recovering from a Failed Start on the Z9500....................................................................................72
Restoring Factory-Default Settings.................................................................................................... 72
Important Points to Remember....................................................................................................72
Restoring Factory-Default Boot Environment Variables..............................................................73
5 802.1X................................................................................................................... 75
The Port-Authentication Process.......................................................................................................76
EAP over RADIUS........................................................................................................................... 77
Configuring 802.1X............................................................................................................................. 78
Related Configuration Tasks.........................................................................................................78
Important Points to Remember..........................................................................................................78
Enabling 802.1X...................................................................................................................................79
Configuring Request Identity Re-Transmissions...............................................................................80
Configuring a Quiet Period after a Failed Authentication............................................................81
Forcibly Authorizing or Unauthorizing a Port....................................................................................82
Re-Authenticating a Port.................................................................................................................... 83
Configuring Timeouts.........................................................................................................................84
Configuring Dynamic VLAN Assignment with Port Authentication..................................................85
Guest and Authentication-Fail VLANs................................................................................................86
Configuring a Guest VLAN............................................................................................................ 87
Configuring an Authentication-Fail VLAN....................................................................................87
6 Access Control Lists (ACLs).............................................................................. 89
IP Access Control Lists (ACLs)............................................................................................................ 89
CAM Usage....................................................................................................................................90
Implementing ACLs ...................................................................................................................... 91
IP Fragment Handling......................................................................................................................... 92
IP Fragments ACL Examples......................................................................................................... 92
Layer 4 ACL Rules Examples.........................................................................................................93
Configure a Standard IP ACL..............................................................................................................94
Configuring a Standard IP ACL Filter............................................................................................ 95
Configure an Extended IP ACL...........................................................................................................96
Configuring Filters with a Sequence Number..............................................................................96
Configuring Filters Without a Sequence Number........................................................................97
Configure Layer 2 and Layer 3 ACLs..................................................................................................98
Using ACL VLAN Groups.....................................................................................................................99
Guidelines for Configuring ACL VLAN Groups............................................................................ 99
Configuring an ACL VLAN Group...............................................................................................100
Allocating ACL VLAN CAM.......................................................................................................... 101
Applying an IP ACL to an Interface................................................................................................... 101
Configure Ingress ACLs...............................................................................................................102
Configure Egress ACLs................................................................................................................103
Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 103
Counting ACL Hits.......................................................................................................................104
IP Prefix Lists......................................................................................................................................104
Implementation Information...................................................................................................... 105
Configuration Task List for Prefix Lists....................................................................................... 105
ACL Resequencing............................................................................................................................109
Resequencing an ACL or Prefix List............................................................................................109
Route Maps.........................................................................................................................................111
Implementation Information....................................................................................................... 111
Important Points to Remember.........................................................................................................111
Configuration Task List for Route Maps......................................................................................111
Configuring Match Routes.......................................................................................................... 114
Configuring Set Conditions.........................................................................................................115
Configure a Route Map for Route Redistribution.......................................................................116
Configure a Route Map for Route Tagging.................................................................................117
Continue Clause...........................................................................................................................117
7 Bare Metal Provisioning (BMP)....................................................................... 119
Enhanced Behavior of the stop bmp Command............................................................................. 119
Removal of User-Defined String Parameter in the reload-type Command................................... 119
Service Tag Information in the Option 60 String............................................................................. 119
8 Bidirectional Forwarding Detection (BFD).................................................. 120
How BFD Works................................................................................................................................ 120
BFD Packet Format...................................................................................................................... 121
BFD Sessions................................................................................................................................122
BFD Three-Way Handshake........................................................................................................123
Session State Changes................................................................................................................ 124
Important Points to Remember........................................................................................................125
Configure BFD...................................................................................................................................125
Configure BFD for Static Routes.................................................................................................126
Configure BFD for OSPF..............................................................................................................127
Configure BFD for OSPFv3.......................................................................................................... 131
Configure BFD for IS-IS...............................................................................................................132
Configure BFD for BGP............................................................................................................... 135
Configure BFD for VRRP............................................................................................................. 142
Configuring Protocol Liveness....................................................................................................145
9 Border Gateway Protocol IPv4 (BGPv4).......................................................146
Autonomous Systems (AS)................................................................................................................146
Sessions and Peers............................................................................................................................148
Establish a Session.......................................................................................................................149
Route Reflectors................................................................................................................................149
Communities...............................................................................................................................150
BGP Attributes................................................................................................................................... 150
Best Path Selection Criteria......................................................................................................... 151
Weight..........................................................................................................................................153
Local Preference..........................................................................................................................153
Multi-Exit Discriminators (MEDs)................................................................................................ 154
Origin........................................................................................................................................... 155
AS Path.........................................................................................................................................156
Next Hop......................................................................................................................................156
Multiprotocol BGP.............................................................................................................................156
Implement BGP ................................................................................................................................ 157
Additional Path (Add-Path) Support............................................................................................157
Advertise IGP Cost as MED for Redistributed Routes.................................................................157
Ignore Router-ID for Some Best-Path Calculations..................................................................158
Four-Byte AS Numbers............................................................................................................... 158
AS4 Number Representation...................................................................................................... 158
AS Number Migration..................................................................................................................160
BGP4 Management Information Base (MIB).............................................................................. 162
Important Points to Remember..................................................................................................162
Configuration Information................................................................................................................163
BGP Configuration............................................................................................................................ 163
Enabling BGP...............................................................................................................................164
Configuring AS4 Number Representations................................................................................168
Configuring Peer Groups............................................................................................................169
Configuring BGP Fast Fail-Over..................................................................................................172
Configuring Passive Peering....................................................................................................... 174
Maintaining Existing AS Numbers During an AS Migration........................................................ 175
Allowing an AS Number to Appear in its Own AS Path..............................................................176
Enabling Neighbor Graceful Restart........................................................................................... 176
Filtering on an AS-Path Attribute.................................................................................................177
Regular Expressions as Filters..................................................................................................... 179
Redistributing Routes..................................................................................................................180
Enabling Additional Paths............................................................................................................181
Configuring IP Community Lists................................................................................................. 181
Configuring an IP Extended Community List.............................................................................183
Filtering Routes with Community Lists.......................................................................................184
Manipulating the COMMUNITY Attribute...................................................................................184
Changing MED Attributes........................................................................................................... 186
Changing the LOCAL_PREFERENCE Attribute.......................................................................... 186
Changing the NEXT_HOP Attribute............................................................................................187
Changing the WEIGHT Attribute................................................................................................ 188
Enabling Multipath...................................................................................................................... 188
Filtering BGP Routes................................................................................................................... 188
Filtering BGP Routes Using Route Maps.................................................................................... 190
Filtering BGP Routes Using AS-PATH Information.................................................................... 190
Configuring BGP Route Reflectors............................................................................................. 191
Aggregating Routes.....................................................................................................................192
Configuring BGP Confederations...............................................................................................192
Enabling Route Flap Dampening................................................................................................ 193
Changing BGP Timers.................................................................................................................196
Enabling BGP Neighbor Soft-Reconfiguration.......................................................................... 196
Route Map Continue................................................................................................................... 197
Enabling MBGP Configurations........................................................................................................198
BGP Regular Expression Optimization.............................................................................................199
Debugging BGP.................................................................................................................................199
Storing Last and Bad PDUs.........................................................................................................200
Capturing PDUs...........................................................................................................................201
PDU Counters............................................................................................................................. 202
Sample Configurations.....................................................................................................................202
10 Content Addressable Memory (CAM)......................................................... 212
CAM Allocation..................................................................................................................................212
Test CAM Usage................................................................................................................................ 214
View CAM-ACL Settings....................................................................................................................214
View CAM Usage............................................................................................................................... 215
Return to the Default CAM Configuration....................................................................................... 216
CAM Optimization.............................................................................................................................216
Applications for CAM Profiling..........................................................................................................217
LAG HashingLAG Hashing Based on Bidirectional Flow............................................................ 217
11 Control Plane Policing (CoPP)......................................................................218
Z9500 CoPP Implementation...........................................................................................................218
Protocol-based Control Plane Policing..................................................................................... 218
Queue-based Control Plane Policing........................................................................................ 219
CoPP Example.................................................................................................................................. 220
Configure Control Plane Policing.....................................................................................................221
Configuring CoPP for Protocols.................................................................................................221
Examples of Configuring CoPP for Protocols........................................................................... 222
Configuring CoPP for CPU Queues...........................................................................................224
Examples of Configuring CoPP for CPU Queues......................................................................224
Displaying CoPP Configuration..................................................................................................225
Troubleshooting CoPP Operation................................................................................................... 229
Enabling CPU Traffic Statistics................................................................................................... 229
Viewing CPU Traffic Statistics.....................................................................................................229
Troubleshooting CPU Packet Loss.............................................................................................229
Viewing Per-Protocol CoPP Counters.......................................................................................232
Viewing Per-Queue CoPP Counters..........................................................................................234
12 Debugging and Diagnostics......................................................................... 236
Offline Diagnostics........................................................................................................................... 236
Important Points to Remember................................................................................................. 236
Running Offline Diagnostics.......................................................................................................236
Examples of Running Offline Diagnostics..................................................................................237
TRACE Logs.......................................................................................................................................245
Auto Save on Reload, Crash, or Rollover................................................................................... 245
Last Restart Reason.......................................................................................................................... 246
Line Card Restart Causes and Reasons......................................................................................246
show hardware Commands.............................................................................................................246
Environmental Monitoring............................................................................................................... 248
Display Power Supply Status...................................................................................................... 248
Display Fan Status....................................................................................................................... 249
Display Transceiver Type............................................................................................................249
Recognize an Over-Temperature Condition............................................................................. 251
Troubleshoot an Over-Temperature Condition........................................................................252
Troubleshooting Packet Loss...........................................................................................................254
Displaying Drop Counters.......................................................................................................... 254
Displaying Dataplane Statistics...................................................................................................256
Displaying Line-Card Counters.................................................................................................. 257
Accessing Application Core Dumps.................................................................................................258
Mini Core Dumps..............................................................................................................................259
Full Kernel Core Dumps....................................................................................................................259
Enabling TCP Dumps........................................................................................................................260
13 Dynamic Host Configuration Protocol (DHCP)........................................ 261
DHCP Packet Format and Options...................................................................................................261
Assign an IP Address using DHCP....................................................................................................263
Implementation Information............................................................................................................264
Configure the System to be a DHCP Server....................................................................................265
Configuring the Server for Automatic Address Allocation........................................................ 265
Specifying a Default Gateway.....................................................................................................267
Configure a Method of Hostname Resolution...........................................................................267
Using DNS for Address Resolution............................................................................................. 267
Using NetBIOS WINS for Address Resolution............................................................................ 267
Creating Manual Binding Entries................................................................................................268
Debugging the DHCP Server......................................................................................................268
Using DHCP Clear Commands.................................................................................................. 268
Configure the System to be a Relay Agent......................................................................................269
Configure the System to be a DHCP Client..................................................................................... 271
DHCP Client on a Management Interface..................................................................................271
DHCP Client Operation with Other Features.............................................................................272
Configure Secure DHCP...................................................................................................................272
Option 82.....................................................................................................................................273
DHCP Snooping.......................................................................................................................... 273
Drop DHCP Packets on Snooped VLANs Only.......................................................................... 275
Dynamic ARP Inspection............................................................................................................ 276
Configuring Dynamic ARP Inspection........................................................................................277
Source Address Validation................................................................................................................278
Enabling IP Source Address Validation.......................................................................................278
DHCP MAC Source Address Validation......................................................................................279
Enabling IP+MAC Source Address Validation............................................................................ 279
14 Equal Cost Multi-Path (ECMP).....................................................................280
ECMP for Flow-Based Affinity..........................................................................................................280
Enabling Deterministic ECMP Next Hop....................................................................................280
Configuring the Hash Algorithm Seed.......................................................................................280
Link Bundle Monitoring.....................................................................................................................281
Managing ECMP Group Paths.....................................................................................................281
Creating an ECMP Group Bundle...............................................................................................282
Modifying the ECMP Group Threshold......................................................................................282
ECMP Support in L3 Host and LPM Tables......................................................................................283
15 Enabling FIPS Cryptography........................................................................ 285
Configuration Tasks..........................................................................................................................285
Preparing the System........................................................................................................................285
Enabling FIPS Mode..........................................................................................................................286
Generating Host-Keys...................................................................................................................... 286
Monitoring FIPS Mode Status........................................................................................................... 287
Disabling FIPS Mode......................................................................................................................... 287
16 Force10 Resilient Ring Protocol (FRRP).....................................................289
Protocol Overview............................................................................................................................289
Ring Status.................................................................................................................................. 290
Multiple FRRP Rings.....................................................................................................................291
Important FRRP Points................................................................................................................ 291
Important FRRP Concepts.......................................................................................................... 291
Implementing FRRP.......................................................................................................................... 293
FRRP Configuration.......................................................................................................................... 293
Creating the FRRP Group........................................................................................................... 293
Configuring the Control VLAN...................................................................................................294
Configuring and Adding the Member VLANs.............................................................................295
Setting the FRRP Timers............................................................................................................. 296
Clearing the FRRP Counters.......................................................................................................296
Viewing the FRRP Configuration................................................................................................ 297
Viewing the FRRP Information....................................................................................................297
Troubleshooting FRRP......................................................................................................................297
Configuration Checks.................................................................................................................297
Sample Configuration and Topology...............................................................................................297
17 GARP VLAN Registration Protocol (GVRP)................................................ 300
Important Points to Remember.......................................................................................................300
Configure GVRP................................................................................................................................ 301
Related Configuration Tasks.......................................................................................................301
Enabling GVRP Globally....................................................................................................................302
Enabling GVRP on a Layer 2 Interface............................................................................................. 302
Configure GVRP Registration...........................................................................................................302
Configure a GARP Timer.................................................................................................................. 303
18 Internet Group Management Protocol (IGMP).........................................305
IGMP Implementation Information..................................................................................................305
IGMP Protocol Overview..................................................................................................................305
IGMP Version 2............................................................................................................................305
IGMP Version 3............................................................................................................................307
Configure IGMP.................................................................................................................................310
Related Configuration Tasks.......................................................................................................310
Viewing IGMP Enabled Interfaces.....................................................................................................311
Selecting an IGMP Version................................................................................................................ 311
Viewing IGMP Groups....................................................................................................................... 312
Adjusting Timers................................................................................................................................312
Adjusting Query and Response Timers.......................................................................................312
Adjusting the IGMP Querier Timeout Value............................................................................... 313
Configuring a Static IGMP Group..................................................................................................... 313
Enabling IGMP Immediate-Leave.....................................................................................................314
IGMP Snooping................................................................................................................................. 314
IGMP Snooping Implementation Information............................................................................314
Configuring IGMP Snooping.......................................................................................................314
Removing a Group-Port Association..........................................................................................315
Disabling Multicast Flooding.......................................................................................................315
Specifying a Port as Connected to a Multicast Router.............................................................. 316
Configuring the Switch as Querier............................................................................................. 316
Fast Convergence after MSTP Topology Changes.......................................................................... 317
Designating a Multicast Router Interface......................................................................................... 317
19 Interfaces......................................................................................................... 318
Basic Interface Configuration...........................................................................................................318
Advanced Interface Configuration................................................................................................... 318
Port Numbering Convention............................................................................................................ 318
Interface Types..................................................................................................................................319
View Basic Interface Information..................................................................................................... 319
Enabling a Physical Interface............................................................................................................ 321
Physical Interfaces............................................................................................................................ 322
Port Pipes.....................................................................................................................................322
Network Processing Units (NPUs).............................................................................................. 322
Configuration Task List for Physical Interfaces..........................................................................322
Overview of Layer Modes........................................................................................................... 323
Configuring Layer 2 (Data Link) Mode........................................................................................323
Configuring Layer 2 (Interface) Mode........................................................................................ 324
Configuring Layer 3 (Network) Mode.........................................................................................324
Configuring Layer 3 (Interface) Mode........................................................................................ 325
Egress Interface Selection (EIS)........................................................................................................ 325
Important Points to Remember................................................................................................. 326
Configuring EIS........................................................................................................................... 326
Management Interfaces....................................................................................................................326
Configuring a Dedicated Management Interface .....................................................................326
Configuring a Management Interface on an Ethernet Port...................................................... 328
VLAN Interfaces.................................................................................................................................329
Loopback Interfaces......................................................................................................................... 330
Null Interfaces...................................................................................................................................330
Port Channel Interfaces....................................................................................................................330
Port Channel Definition and Standards...................................................................................... 331
Port Channel Benefits..................................................................................................................331
Port Channel Implementation.................................................................................................... 331
10/40 Gbps Interfaces in Port Channels....................................................................................332
Configuration Tasks for Port Channel Interfaces...................................................................... 332
Creating a Port Channel............................................................................................................. 332
Adding a Physical Interface to a Port Channel.......................................................................... 333
Reassigning an Interface to a New Port Channel......................................................................335
Configuring the Minimum Oper Up Links in a Port Channel....................................................336
Adding or Removing a Port Channel from a VLAN................................................................... 336
Assigning an IP Address to a Port Channel................................................................................ 337
Deleting or Disabling a Port Channel.........................................................................................337
Load Balancing Through Port Channels.................................................................................... 337
Load-Balancing Methods............................................................................................................337
Changing the Hash Algorithm....................................................................................................338
Bulk Configuration............................................................................................................................339
Interface Range...........................................................................................................................339
Bulk Configuration Examples..................................................................................................... 339
Defining Interface Range Macros.....................................................................................................341
Define the Interface Range.........................................................................................................342
Choosing an Interface-Range Macro........................................................................................ 342
Monitoring and Maintaining Interfaces............................................................................................342
Displaying Traffic Statistics on HiGig Ports......................................................................................343
Link Bundle Monitoring.................................................................................................................... 344
Monitoring HiGig Link Bundles........................................................................................................ 344
Guidelines for Monitoring HiGig Link-Bundles .........................................................................345
Enabling HiGig Link-Bundle Monitoring....................................................................................346
Splitting QSFP Ports to SFP+ Ports...................................................................................................347
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port...................................................... 347
Link Dampening................................................................................................................................ 352
Important Points to Remember..................................................................................................353
Enabling Link Dampening...........................................................................................................353
Using Ethernet Pause Frames for Flow Control.............................................................................. 355
Threshold Settings...................................................................................................................... 355
Enabling Pause Frames...............................................................................................................356
Configure the MTU Size on an Interface......................................................................................... 356
Auto-Negotiation on Ethernet Interfaces........................................................................................ 357
Set Auto-Negotiation Options................................................................................................... 358
View Advanced Interface Information............................................................................................. 358
Configuring the Interface Sampling Size................................................................................... 359
Dynamic Counters............................................................................................................................360
Clearing Interface Counters........................................................................................................361
20 Internet Protocol Security (IPSec).............................................................. 362
Configuring IPSec ............................................................................................................................ 363
21 IPv4 Routing....................................................................................................364
IP Addresses......................................................................................................................................364
Implementation Information......................................................................................................364
Configuration Tasks for IP Addresses.............................................................................................. 364
Assigning IP Addresses to an Interface............................................................................................ 365
Configuring Static Routes................................................................................................................ 366
Configure Static Routes for the Management Interface................................................................. 367
Enabling Directed Broadcast............................................................................................................367
Resolution of Host Names............................................................................................................... 368
Enabling Dynamic Resolution of Host Names................................................................................ 368
Specifying the Local System Domain and a List of Domains..........................................................369
Configuring DNS with Traceroute................................................................................................... 369
ARP.................................................................................................................................................... 370
Configuration Tasks for ARP.............................................................................................................370
Configuring Static ARP Entries..........................................................................................................371
Enabling Proxy ARP........................................................................................................................... 371
Clearing ARP Cache.......................................................................................................................... 371
ARP Learning via Gratuitous ARP......................................................................................................372
Enabling ARP Learning via Gratuitous ARP...................................................................................... 372
ARP Learning via ARP Request..........................................................................................................372
Configuring ARP Retries....................................................................................................................373
ICMP.................................................................................................................................................. 374
Configuration Tasks for ICMP.......................................................................................................... 374
Enabling ICMP Unreachable Messages............................................................................................374
UDP Helper........................................................................................................................................375
Configure UDP Helper................................................................................................................ 375
Important Points to Remember..................................................................................................375
Enabling UDP Helper........................................................................................................................ 375
Configuring a Broadcast Address.....................................................................................................376
Configurations Using UDP Helper....................................................................................................376
UDP Helper with Broadcast-All Addresses...................................................................................... 376
UDP Helper with Subnet Broadcast Addresses................................................................................377
UDP Helper with Configured Broadcast Addresses........................................................................ 378
UDP Helper with No Configured Broadcast Addresses.................................................................. 378
Troubleshooting UDP Helper...........................................................................................................379
22 IPv6 Routing................................................................................................... 380
Protocol Overview............................................................................................................................380
Extended Address Space............................................................................................................ 380
Stateless Autoconfiguration....................................................................................................... 380
IPv6 Headers................................................................................................................................381
IPv6 Header Fields.......................................................................................................................382
Extension Header Fields..............................................................................................................383
IPv6 Addressing...........................................................................................................................384
IPv6 Implementation on the Dell Networking OS...........................................................................386
Configuring the LPM Table for IPv6 Extended Prefixes.................................................................. 388
ICMPv6..............................................................................................................................................388
Path MTU Discovery......................................................................................................................... 388
IPv6 Neighbor Discovery..................................................................................................................389
IPv6 Neighbor Discovery of MTU Packets.................................................................................390
Configuring the IPv6 Recursive DNS Server..............................................................................390
Secure Shell (SSH) Over an IPv6 Transport......................................................................................392
Configuration Tasks for IPv6............................................................................................................ 392
Adjusting Your CAM Profile........................................................................................................ 393
Assigning an IPv6 Address to an Interface.................................................................................393
Assigning a Static IPv6 Route..................................................................................................... 394
Configuring Telnet with IPv6......................................................................................................395
SNMP over IPv6...........................................................................................................................395
Displaying IPv6 Information....................................................................................................... 395
Displaying an IPv6 Configuration...............................................................................................396
Displaying IPv6 Routes............................................................................................................... 396
Displaying the Running Configuration for an Interface............................................................ 398
Clearing IPv6 Routes...................................................................................................................398
23 Intermediate System to Intermediate System..........................................399
IS-IS Protocol Overview................................................................................................................... 399
IS-IS Addressing................................................................................................................................399
Multi-Topology IS-IS........................................................................................................................400
Transition Mode..........................................................................................................................400
Interface Support........................................................................................................................ 401
Adjacencies..................................................................................................................................401
Graceful Restart................................................................................................................................ 401
Timers..........................................................................................................................................401
Implementation Information............................................................................................................402
Configuration Information............................................................................................................... 403
Configuration Tasks for IS-IS..................................................................................................... 403
Configuring the Distance of a Route..........................................................................................412
Changing the IS-Type................................................................................................................. 412
Redistributing IPv4 Routes..........................................................................................................415
Redistributing IPv6 Routes..........................................................................................................416
Configuring Authentication Passwords......................................................................................417
Setting the Overload Bit.............................................................................................................. 417
Debugging IS-IS.......................................................................................................................... 418
IS-IS Metric Styles..............................................................................................................................419
Configure Metric Values................................................................................................................... 419
Maximum Values in the Routing Table...................................................................................... 420
Change the IS-IS Metric Style in One Level Only......................................................................420
Leaks from One Level to Another.............................................................................................. 422
Sample Configurations..................................................................................................................... 422
24 Link Aggregation Control Protocol (LACP)...............................................425
Introduction to Dynamic LAGs and LACP....................................................................................... 425
Important Points to Remember................................................................................................. 425
LACP Modes................................................................................................................................426
Configuring LACP Commands...................................................................................................426
LACP Configuration Tasks................................................................................................................ 427
Creating a LAG............................................................................................................................ 427
Configuring the LAG Interfaces as Dynamic..............................................................................427
Setting the LACP Long Timeout.................................................................................................428
Monitoring and Debugging LACP.............................................................................................. 429
Shared LAG State Tracking...............................................................................................................429
Configuring Shared LAG State Tracking.................................................................................... 430
Important Points about Shared LAG State Tracking.................................................................. 431
LACP Basic Configuration Example................................................................................................. 432
Configure a LAG on ALPHA........................................................................................................ 432
25 Layer 2..............................................................................................................440
Manage the MAC Address Table......................................................................................................440
Clearing the MAC Address Table............................................................................................... 440
Setting the Aging Time for Dynamic Entries............................................................................. 440
Configuring a Static MAC Address..............................................................................................441
Displaying the MAC Address Table.............................................................................................441
MAC Learning Limit...........................................................................................................................441
Setting the MAC Learning Limit..................................................................................................442
mac learning-limit Dynamic.......................................................................................................442
mac learning-limit mac-address-sticky.....................................................................................442
mac learning-limit station-move............................................................................................... 443
mac learning-limit no-station-move.........................................................................................443
Learning Limit Violation Actions................................................................................................ 444
Setting Station Move Violation Actions......................................................................................444
Recovering from Learning Limit and Station Move Violations................................................. 444
NIC Teaming.....................................................................................................................................445
Configure Redundant Pairs.............................................................................................................. 446
Important Points about Configuring Redundant Pairs..............................................................448
Far-End Failure Detection................................................................................................................ 449
FEFD State Changes....................................................................................................................450
Configuring FEFD........................................................................................................................ 451
Enabling FEFD on an Interface................................................................................................... 452
Debugging FEFD......................................................................................................................... 453
26 Link Layer Discovery Protocol (LLDP)........................................................455
802.1AB (LLDP) Overview.................................................................................................................455
Protocol Data Units.....................................................................................................................455
Optional TLVs....................................................................................................................................456
Management TLVs...................................................................................................................... 456
TIA-1057 (LLDP-MED) Overview......................................................................................................458
TIA Organizationally Specific TLVs.............................................................................................459
Configure LLDP.................................................................................................................................463
Related Configuration Tasks...................................................................................................... 463
Important Points to Remember................................................................................................. 464
LLDP Compatibility..................................................................................................................... 464
CONFIGURATION versus INTERFACE Configurations................................................................... 464
Enabling LLDP...................................................................................................................................465
Disabling and Undoing LLDP......................................................................................................465
Enabling LLDP on Management Ports............................................................................................. 465
Disabling and Undoing LLDP on Management Ports................................................................465
Advertising TLVs................................................................................................................................466
Viewing the LLDP Configuration......................................................................................................467
Viewing Information Advertised by Adjacent LLDP Agents............................................................ 468
Configuring LLDPDU Intervals......................................................................................................... 469
Configuring Transmit and Receive Mode........................................................................................469
Configuring a Time to Live...............................................................................................................470
Debugging LLDP................................................................................................................................471
Relevant Management Objects........................................................................................................ 472
27 Microsoft Network Load Balancing............................................................478
NLB Unicast and Multicast Modes................................................................................................... 478
NLB Unicast Mode Example....................................................................................................... 478
NLB Multicast Mode Example.....................................................................................................479
NLB Benefits......................................................................................................................................479
NLB Restrictions................................................................................................................................479
NLB VLAN Flooding..........................................................................................................................480
Configuring NLB on a Switch...........................................................................................................480
.....................................................................................................................................................480
28 Multicast Source Discovery Protocol (MSDP)...........................................481
Protocol Overview............................................................................................................................ 481
Anycast RP........................................................................................................................................ 483
Implementation Information............................................................................................................483
Configure Multicast Source Discovery Protocol.............................................................................483
Related Configuration Tasks...................................................................................................... 483
Enable MSDP.....................................................................................................................................487
Manage the Source-Active Cache...................................................................................................488
Viewing the Source-Active Cache............................................................................................. 488
Limiting the Source-Active Cache.............................................................................................489
Clearing the Source-Active Cache............................................................................................ 489
Enabling the Rejected Source-Active Cache............................................................................ 489
Accept Source-Active Messages that Fail the RFP Check.............................................................. 489
Specifying Source-Active Messages................................................................................................ 493
Limiting the Source-Active Messages from a Peer......................................................................... 494
Preventing MSDP from Caching a Local Source.............................................................................494
Preventing MSDP from Caching a Remote Source.........................................................................495
Preventing MSDP from Advertising a Local Source........................................................................ 496
Logging Changes in Peership States................................................................................................497
Terminating a Peership.....................................................................................................................497
Clearing Peer Statistics..................................................................................................................... 497
Debugging MSDP............................................................................................................................. 498
MSDP with Anycast RP..................................................................................................................... 498
Configuring Anycast RP................................................................................................................... 500
Reducing Source-Active Message Flooding..............................................................................500
Specifying the RP Address Used in SA Messages...................................................................... 500
MSDP Sample Configurations.......................................................................................................... 503
29 Multiple Spanning Tree Protocol (MSTP).................................................. 506
Protocol Overview............................................................................................................................506
Spanning Tree Variations..................................................................................................................507
Implementation Information...................................................................................................... 507
Configure Multiple Spanning Tree Protocol....................................................................................507
Related Configuration Tasks.......................................................................................................507
Enable Multiple Spanning Tree Globally..........................................................................................508
Adding and Removing Interfaces.....................................................................................................508
Creating Multiple Spanning Tree Instances.....................................................................................508
Influencing MSTP Root Selection.....................................................................................................510
Interoperate with Non-Dell Bridges.................................................................................................510
Changing the Region Name or Revision.......................................................................................... 511
Modifying Global Parameters............................................................................................................511
Modifying the Interface Parameters................................................................................................. 512
Configuring an EdgePort.................................................................................................................. 513
Flush MAC Addresses after a Topology Change..............................................................................514
MSTP Sample Configurations........................................................................................................... 514
Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationExample Running-Configuration.........................................................................515
Debugging and Verifying MSTP Configurations.............................................................................. 518
30 Multicast Features..........................................................................................521
Enabling IP Multicast......................................................................................................................... 521
Multicast with ECMP......................................................................................................................... 521
Implementation Information............................................................................................................522
First Packet Forwarding for Lossless Multicast................................................................................ 523
Multicast Policies...............................................................................................................................523
IPv4 Multicast Policies.................................................................................................................523
31 Open Shortest Path First (OSPFv2 and OSPFv3)....................................... 531
Protocol Overview.............................................................................................................................531
Autonomous System (AS) Areas..................................................................................................531
Area Types................................................................................................................................... 532
Networks and Neighbors............................................................................................................533
Router Types............................................................................................................................... 533
Designated and Backup Designated Routers.............................................................................535
Link-State Advertisements (LSAs)............................................................................................... 535
Virtual Links..................................................................................................................................537
Router Priority and Cost..............................................................................................................537
OSPF Implementation...................................................................................................................... 538
Fast Convergence (OSPFv2, IPv4 Only)..................................................................................... 538
Multi-Process OSPFv2 (IPv4 only)..............................................................................................538
RFC-2328 Compliant OSPF Flooding........................................................................................ 539
OSPF ACK Packing......................................................................................................................540
Setting OSPF Adjacency with Cisco Routers.............................................................................540
Configuration Information................................................................................................................541
Configuration Task List for OSPFv2 (OSPF for IPv4).................................................................. 541
Sample Configurations for OSPFv2..................................................................................................556
Basic OSPFv2 Router Topology..................................................................................................556
OSPF Area 0 — Te 1/1 and 1/2....................................................................................................556
OSPF Area 0 — Te 3/1 and 3/2....................................................................................................557
OSPF Area 0 — Te 2/1 and 2/2....................................................................................................557
Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................557
Enabling IPv6 Unicast Routing................................................................................................... 558
Assigning IPv6 Addresses on an Interface................................................................................. 558
Assigning Area ID on an Interface.............................................................................................. 558
Assigning OSPFv3 Process ID and Router ID Globally.............................................................. 559
Configuring Stub Areas...............................................................................................................559
Configuring Passive-Interface....................................................................................................559
Redistributing Routes................................................................................................................. 560
Configuring a Default Route...................................................................................................... 560
OSPFv3 Authentication Using IPsec........................................................................................... 561
Troubleshooting OSPFv3............................................................................................................568
32 Pay As You Grow ........................................................................................... 570
Installing a License............................................................................................................................570
Displaying License Information........................................................................................................ 573
33 PIM Sparse-Mode (PIM-SM)..........................................................................575
Implementation Information............................................................................................................ 575
Protocol Overview............................................................................................................................ 575
Requesting Multicast Traffic........................................................................................................575
Refuse Multicast Traffic...............................................................................................................576
Send Multicast Traffic..................................................................................................................576
Configuring PIM-SM..........................................................................................................................577
Related Configuration Tasks....................................................................................................... 577
Enable PIM-SM.................................................................................................................................. 577
Configuring S,G Expiry Timers..........................................................................................................578
Configuring a Static Rendezvous Point............................................................................................579
Overriding Bootstrap Router Updates....................................................................................... 580
Configuring a Designated Router.................................................................................................... 580
Creating Multicast Boundaries and Domains...................................................................................581
Enabling PIM-SM Graceful Restart................................................................................................... 581
34 PIM Source-Specific Mode (PIM-SSM).......................................................582
Implementation Information............................................................................................................582
Important Points to Remember................................................................................................. 582
Configure PIM-SMM......................................................................................................................... 583
Related Configuration Tasks.......................................................................................................583
Enabling PIM-SSM.............................................................................................................................583
Use PIM-SSM with IGMP Version 2 Hosts........................................................................................583
Configuring PIM-SSM with IGMPv2........................................................................................... 584
35 Policy-based Routing (PBR)......................................................................... 586
Overview........................................................................................................................................... 586
Implementing Policy-based Routing with Dell Networking OS.....................................................588
Configuration Task List for Policy-based Routing.......................................................................... 588
PBR Exceptions (Permit)..............................................................................................................591
Sample Configuration.......................................................................................................................593
Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View
Redirect-List GOLD.....................................................................................................................594
36 Port Monitoring..............................................................................................596
Local Port Monitoring.......................................................................................................................596
Important Points to Remember................................................................................................. 596
Examples of Port Monitoring......................................................................................................596
Configuring Port Monitoring......................................................................................................598
Remote Port Mirroring......................................................................................................................599
Remote Port Mirroring Example.................................................................................................599
Configuring Remote Port Mirroring...........................................................................................600
Displaying a Remote-Port Mirroring Configuration..................................................................602
Configuring Remote Port Monitoring........................................................................................602
Encapsulated Remote-Port Monitoring.......................................................................................... 606
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