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Force10 Z9000

Dell Force10 Z9000 Administrator Guide

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Dell Configuration Guide for the Z9000
System
9.6(0.0)
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 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 - 09
Rev. A00
Contents
1 About this Guide..................................................................................................31
Audience.............................................................................................................................................. 31
Conventions.........................................................................................................................................31
Related Documents.............................................................................................................................31
2 Configuration Fundamentals........................................................................... 32
Accessing the Command Line............................................................................................................32
CLI Modes............................................................................................................................................32
Navigating CLI Modes................................................................................................................... 34
The do Command............................................................................................................................... 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
Accessing the CLI Interface and Running Scripts Using SSH............................................................44
Z9000 ........................................................................................................................................... 44
Entering CLI commands Using an SSH Connection....................................................................45
Executing Local CLI Scripts Using an SSH Connection...............................................................45
Default Configuration......................................................................................................................... 46
Configuring a Host Name...................................................................................................................46
Accessing the System Remotely........................................................................................................ 46
Accessing the System Remotely...................................................................................................46
Configure the Management Port IP Address............................................................................... 46
Configure a Management Route.................................................................................................. 47
Configuring a Username and Password.......................................................................................47
Configuring the Enable Password...................................................................................................... 47
Configuration File Management.........................................................................................................48
Copy Files to and from the System.............................................................................................. 48
Save the Running-Configuration..................................................................................................49
Configure the Overload Bit for a Startup Scenario......................................................................50
Viewing Files..................................................................................................................................50
Managing the File System....................................................................................................................51
Enabling Software Features on Devices Using a Command Option................................................ 52
View Command History......................................................................................................................53
Upgrading Dell Networking OS.......................................................................................................... 53
Using HTTP for File Transfers............................................................................................................. 54
Using Hashes to Validate Software Images........................................................................................54
4 Management........................................................................................................56
Configuring Privilege Levels............................................................................................................... 56
Creating a Custom Privilege Level................................................................................................56
Removing a Command from EXEC Mode................................................................................... 56
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 57
Allowing Access to CONFIGURATION Mode Commands...........................................................57
Allowing Access to the Following Modes.....................................................................................57
Applying a Privilege Level to a Username.................................................................................... 59
Applying a Privilege Level to a Terminal Line...............................................................................59
Configuring Logging...........................................................................................................................59
Audit and Security Logs................................................................................................................ 60
Configuring Logging Format ...................................................................................................... 62
Setting Up a Secure Connection to a Syslog Server....................................................................62
Log Messages in the Internal Buffer...................................................................................................63
Configuration Task List for System Log Management.................................................................63
Disabling System Logging...................................................................................................................63
Sending System Messages to a Syslog Server................................................................................... 64
Configuring a UNIX System as a Syslog Server............................................................................64
Changing System Logging Settings................................................................................................... 64
Display the Logging Buffer and the Logging Configuration............................................................. 65
Configuring a UNIX Logging Facility Level.........................................................................................66
Synchronizing Log Messages..............................................................................................................67
Enabling Timestamp on Syslog Messages..........................................................................................67
File Transfer Services.......................................................................................................................... 68
Configuration Task List for File Transfer Services........................................................................68
Enabling the FTP Server................................................................................................................ 68
Configuring FTP Server Parameters............................................................................................. 69
Configuring FTP Client Parameters..............................................................................................69
Terminal Lines..................................................................................................................................... 70
Denying and Permitting Access to a Terminal Line.....................................................................70
Configuring Login Authentication for Terminal Lines..................................................................71
Setting Time Out of EXEC Privilege Mode..........................................................................................72
Using Telnet to get to Another Network Device................................................................................72
Lock CONFIGURATION Mode............................................................................................................73
Viewing the Configuration Lock Status........................................................................................ 73
Recovering from a Forgotten Password on the Z9000 System........................................................74
Recovering from a Forgotten Enable Password on the Z9000...................................................75
Recovering from a Failed Start on the Z9000 System.......................................................................76
Restoring the Factory Default Settings...............................................................................................77
Z9000MXL Switch..........................................................................................................................77
Important Points to Remember.................................................................................................... 77
Restoring Factory Default Environment Variables........................................................................77
5 802.1X...................................................................................................................80
The Port-Authentication Process....................................................................................................... 81
EAP over RADIUS...........................................................................................................................83
Configuring 802.1X............................................................................................................................. 83
Related Configuration Tasks.........................................................................................................83
Important Points to Remember......................................................................................................... 84
Enabling 802.1X...................................................................................................................................84
Configuring Request Identity Re-Transmissions...............................................................................86
Configuring a Quiet Period after a Failed Authentication........................................................... 86
Forcibly Authorizing or Unauthorizing a Port.................................................................................... 87
Re-Authenticating a Port....................................................................................................................88
Configuring Timeouts.........................................................................................................................89
Configuring Dynamic VLAN Assignment with Port Authentication..................................................90
Guest and Authentication-Fail VLANs................................................................................................ 91
Configuring a Guest VLAN............................................................................................................92
Configuring an Authentication-Fail VLAN....................................................................................92
6 Access Control Lists (ACLs).............................................................................. 94
IP Access Control Lists (ACLs)............................................................................................................ 95
CAM Usage.................................................................................................................................... 95
Implementing ACLs on Dell Networking OS................................................................................97
IP Fragment Handling......................................................................................................................... 98
IP Fragments ACL Examples......................................................................................................... 98
Layer 4 ACL Rules Examples.........................................................................................................99
Configure a Standard IP ACL............................................................................................................100
Configuring a Standard IP ACL Filter.......................................................................................... 101
Configure an Extended IP ACL......................................................................................................... 102
Configuring Filters with a Sequence Number............................................................................102
Configuring Filters Without a Sequence Number......................................................................103
Configure Layer 2 and Layer 3 ACLs................................................................................................104
Assign an IP ACL to an Interface...................................................................................................... 105
Applying an IP ACL............................................................................................................................105
Counting ACL Hits.......................................................................................................................106
Configure Ingress ACLs.................................................................................................................... 106
Configure Egress ACLs......................................................................................................................107
Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 108
IP Prefix Lists..................................................................................................................................... 108
Implementation Information...................................................................................................... 109
Configuration Task List for Prefix Lists....................................................................................... 109
ACL Resequencing.............................................................................................................................113
Resequencing an ACL or Prefix List............................................................................................ 114
Route Maps........................................................................................................................................ 115
Implementation Information.......................................................................................................115
Important Points to Remember........................................................................................................ 115
Configuration Task List for Route Maps......................................................................................116
Configuring Match Routes.......................................................................................................... 118
Configuring Set Conditions........................................................................................................ 120
Configure a Route Map for Route Redistribution.......................................................................121
Configure a Route Map for Route Tagging................................................................................ 121
Continue Clause..........................................................................................................................122
Logging of ACL Processes................................................................................................................ 122
Guidelines for Configuring ACL Logging......................................................................................... 123
Configuring ACL Logging................................................................................................................. 124
Flow-Based Monitoring Support for ACLs....................................................................................... 124
Behavior of Flow-Based Monitoring...........................................................................................125
Enabling Flow-Based Monitoring..................................................................................................... 126
7 Access Control List (ACL) VLAN Groups and Content Addressable
Memory (CAM)......................................................................................................128
Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................... 128
Guidelines for Configuring ACL VLAN groups.................................................................................129
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters........................130
Configuring ACL VLAN Groups...................................................................................................130
Configuring FP Blocks for VLAN Parameters..............................................................................131
Viewing CAM Usage.......................................................................................................................... 132
Allocating FP Blocks for VLAN Processes.........................................................................................133
8 Bidirectional Forwarding Detection (BFD)...................................................135
How BFD Works................................................................................................................................ 135
BFD Packet Format......................................................................................................................136
BFD Sessions................................................................................................................................138
BFD Three-Way Handshake........................................................................................................138
Session State Changes................................................................................................................ 139
Important Points to Remember....................................................................................................... 140
Configure BFD...................................................................................................................................140
Configure BFD for Physical Ports................................................................................................141
Configure BFD for Static Routes.................................................................................................144
Configure BFD for OSPF............................................................................................................. 146
Configure BFD for OSPFv3......................................................................................................... 149
Configure BFD for IS-IS...............................................................................................................150
Configure BFD for BGP............................................................................................................... 153
Configure BFD for VRRP............................................................................................................. 160
Configuring Protocol Liveness....................................................................................................163
Troubleshooting BFD.................................................................................................................. 163
9 Border Gateway Protocol IPv4 (BGPv4).......................................................165
Autonomous Systems (AS)................................................................................................................165
Sessions and Peers............................................................................................................................ 167
Establish a Session.......................................................................................................................168
Route Reflectors................................................................................................................................168
BGP Attributes................................................................................................................................... 169
Best Path Selection Criteria.........................................................................................................170
Weight.......................................................................................................................................... 172
Local Preference..........................................................................................................................172
Multi-Exit Discriminators (MEDs)................................................................................................ 173
Origin........................................................................................................................................... 174
AS Path......................................................................................................................................... 175
Next Hop......................................................................................................................................175
Multiprotocol BGP.............................................................................................................................176
Implement BGP with Dell Networking OS....................................................................................... 176
Additional Path (Add-Path) Support............................................................................................176
Advertise IGP Cost as MED for Redistributed Routes................................................................ 176
Ignore Router-ID for Some Best-Path Calculations.................................................................. 177
Four-Byte AS Numbers................................................................................................................177
AS4 Number Representation.......................................................................................................178
AS Number Migration.................................................................................................................. 179
BGP4 Management Information Base (MIB)...............................................................................181
Important Points to Remember.................................................................................................. 181
Configuration Information................................................................................................................182
BGP Configuration............................................................................................................................ 182
Enabling BGP...............................................................................................................................183
Configuring AS4 Number Representations................................................................................ 187
Configuring Peer Groups............................................................................................................189
Configuring BGP Fast Fall-Over..................................................................................................191
Configuring Passive Peering....................................................................................................... 193
Maintaining Existing AS Numbers During an AS Migration........................................................194
Allowing an AS Number to Appear in its Own AS Path..............................................................195
Enabling Graceful Restart........................................................................................................... 196
Enabling Neighbor Graceful Restart........................................................................................... 197
Filtering on an AS-Path Attribute................................................................................................ 197
Regular Expressions as Filters..................................................................................................... 199
Redistributing Routes................................................................................................................. 200
Enabling Additional Paths........................................................................................................... 201
Configuring IP Community Lists.................................................................................................201
Configuring an IP Extended Community List............................................................................ 203
Filtering Routes with Community Lists......................................................................................204
Manipulating the COMMUNITY Attribute.................................................................................. 204
Changing MED Attributes...........................................................................................................206
Changing the LOCAL_PREFERENCE Attribute..........................................................................206
Changing the NEXT_HOP Attribute........................................................................................... 207
Changing the WEIGHT Attribute................................................................................................208
Enabling Multipath......................................................................................................................208
Filtering BGP Routes...................................................................................................................208
Filtering BGP Routes Using Route Maps.................................................................................... 210
Filtering BGP Routes Using AS-PATH Information.....................................................................211
Configuring BGP Route Reflectors............................................................................................. 211
Aggregating Routes.....................................................................................................................212
Configuring BGP Confederations...............................................................................................213
Enabling Route Flap Dampening................................................................................................ 213
Changing BGP Timers.................................................................................................................216
Enabling BGP Neighbor Soft-Reconfiguration.......................................................................... 216
Route Map Continue...................................................................................................................218
Enabling MBGP Configurations........................................................................................................ 218
BGP Regular Expression Optimization............................................................................................. 219
Debugging BGP.................................................................................................................................219
Storing Last and Bad PDUs.........................................................................................................220
Capturing PDUs........................................................................................................................... 221
PDU Counters............................................................................................................................. 222
Sample Configurations..................................................................................................................... 223
10 Content Addressable Memory (CAM).........................................................229
CAM Allocation................................................................................................................................. 229
Test CAM Usage................................................................................................................................ 231
View CAM Profiles............................................................................................................................. 231
View CAM-ACL Settings................................................................................................................... 232
View CAM Usage...............................................................................................................................234
CAM Optimization.............................................................................................................................235
Troubleshoot CAM Profiling.............................................................................................................235
CAM Profile Mismatches.............................................................................................................235
QoS CAM Region Limitation.......................................................................................................235
11 Control Plane Policing (CoPP)......................................................................237
Configure Control Plane Policing.................................................................................................... 238
Configuring CoPP for Protocols................................................................................................ 239
Configuring CoPP for CPU Queues........................................................................................... 241
CoPP for OSPFv3 Packets...........................................................................................................242
Configuring CoPP for OSPFv3....................................................................................................245
Show Commands....................................................................................................................... 246
12 Dynamic Host Configuration Protocol (DHCP)........................................248
DHCP Packet Format and Options.................................................................................................. 248
Assign an IP Address using DHCP....................................................................................................250
Implementation Information............................................................................................................ 251
Configure the System to be a DHCP Server.................................................................................... 252
Configuring the Server for Automatic Address Allocation........................................................ 252
Specifying a Default Gateway.....................................................................................................254
Configure a Method of Hostname Resolution.......................................................................... 254
Using DNS for Address Resolution.............................................................................................254
Using NetBIOS WINS for Address Resolution............................................................................ 254
Creating Manual Binding Entries................................................................................................ 255
Debugging the DHCP Server......................................................................................................255
Using DHCP Clear Commands...................................................................................................255
Configure the System to be a Relay Agent......................................................................................256
Configure the System to be a DHCP Client.................................................................................... 258
DHCP Client on a Management Interface................................................................................. 258
DHCP Client Operation with Other Features............................................................................ 259
Configure the System for User Port Stacking (Option 230)........................................................... 260
Configure Secure DHCP.................................................................................................................. 260
Option 82....................................................................................................................................260
DHCP Snooping.......................................................................................................................... 261
Drop DHCP Packets on Snooped VLANs Only..........................................................................263
Dynamic ARP Inspection............................................................................................................ 263
Configuring Dynamic ARP Inspection........................................................................................265
Source Address Validation................................................................................................................266
Enabling IP Source Address Validation...................................................................................... 266
DHCP MAC Source Address Validation......................................................................................267
Enabling IP+MAC Source Address Validation............................................................................ 267
Viewing the Number of SAV Dropped Packets..........................................................................268
Clearing the Number of SAV Dropped Packets.........................................................................268
13 Equal Cost Multi-Path (ECMP)..................................................................... 269
ECMP for Flow-Based Affinity..........................................................................................................269
Configuring the Hash Algorithm................................................................................................ 269
Enabling Deterministic ECMP Next Hop....................................................................................269
Configuring the Hash Algorithm Seed....................................................................................... 270
Link Bundle Monitoring.................................................................................................................... 270
Managing ECMP Group Paths.....................................................................................................271
Creating an ECMP Group Bundle...............................................................................................272
Modifying the ECMP Group Threshold...................................................................................... 272
14 Enabling FIPS Cryptography........................................................................ 274
Configuration Tasks..........................................................................................................................274
Preparing the System........................................................................................................................274
Enabling FIPS Mode.......................................................................................................................... 275
Generating Host-Keys.......................................................................................................................275
Monitoring FIPS Mode Status........................................................................................................... 276
Disabling FIPS Mode......................................................................................................................... 276
15 Force10 Resilient Ring Protocol (FRRP)..................................................... 278
Protocol Overview............................................................................................................................ 278
Ring Status...................................................................................................................................279
Multiple FRRP Rings....................................................................................................................280
Important FRRP Points............................................................................................................... 280
Important FRRP Concepts..........................................................................................................280
Implementing FRRP.......................................................................................................................... 282
FRRP Configuration.......................................................................................................................... 282
Creating the FRRP Group........................................................................................................... 282
Configuring the Control VLAN................................................................................................... 283
Configuring and Adding the Member VLANs............................................................................ 284
Setting the FRRP Timers............................................................................................................. 285
Clearing the FRRP Counters.......................................................................................................286
Viewing the FRRP Configuration................................................................................................286
Viewing the FRRP Information................................................................................................... 286
Troubleshooting FRRP......................................................................................................................287
Configuration Checks.................................................................................................................287
Sample Configuration and Topology...............................................................................................287
16 GARP VLAN Registration Protocol (GVRP)................................................289
Important Points to Remember....................................................................................................... 289
Configure GVRP................................................................................................................................290
Related Configuration Tasks...................................................................................................... 290
Enabling GVRP Globally....................................................................................................................291
Enabling GVRP on a Layer 2 Interface..............................................................................................291
Configure GVRP Registration........................................................................................................... 291
Configure a GARP Timer.................................................................................................................. 292
17 Internet Group Management Protocol (IGMP).........................................294
IGMP Implementation Information..................................................................................................294
IGMP Protocol Overview..................................................................................................................294
IGMP Version 2............................................................................................................................294
IGMP Version 3............................................................................................................................296
Configure IGMP................................................................................................................................ 299
Related Configuration Tasks...................................................................................................... 299
Viewing IGMP Enabled Interfaces....................................................................................................300
Selecting an IGMP Version...............................................................................................................300
Viewing IGMP Groups.......................................................................................................................301
Adjusting Timers................................................................................................................................301
Adjusting Query and Response Timers...................................................................................... 301
Adjusting the IGMP Querier Timeout Value...............................................................................302
Configuring a Static IGMP Group.................................................................................................... 302
Enabling IGMP Immediate-Leave.................................................................................................... 303
IGMP Snooping.................................................................................................................................303
IGMP Snooping Implementation Information...........................................................................303
Configuring IGMP Snooping...................................................................................................... 303
Removing a Group-Port Association.........................................................................................304
Disabling Multicast Flooding...................................................................................................... 304
Specifying a Port as Connected to a Multicast Router..............................................................305
Configuring the Switch as Querier.............................................................................................305
Fast Convergence after MSTP Topology Changes......................................................................... 306
Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................. 306
Protocol Separation.................................................................................................................... 307
Enabling and Disabling Management Egress Interface Selection............................................ 308
Handling of Management Route Configuration........................................................................309
Handling of Switch-Initiated Traffic...........................................................................................309
Handling of Switch-Destined Traffic..........................................................................................310
Handling of Transit Traffic (Traffic Separation)...........................................................................311
Mapping of Management Applications and Traffic Type........................................................... 311
Behavior of Various Applications for Switch-Initiated Traffic ...................................................312
Behavior of Various Applications for Switch-Destined Traffic ................................................. 313
Interworking of EIS With Various Applications...........................................................................314
Designating a Multicast Router Interface......................................................................................... 315
18 Interfaces......................................................................................................... 316
Basic Interface Configuration...........................................................................................................316
Advanced Interface Configuration................................................................................................... 316
Interface Types.................................................................................................................................. 317
View Basic Interface Information......................................................................................................317
Enabling a Physical Interface............................................................................................................ 319
Physical Interfaces.............................................................................................................................319
Configuration Task List for Physical Interfaces..........................................................................320
Overview of Layer Modes...........................................................................................................320
Configuring Layer 2 (Data Link) Mode....................................................................................... 320
Configuring Layer 2 (Interface) Mode.........................................................................................321
Configuring Layer 3 (Network) Mode......................................................................................... 321
Configuring Layer 3 (Interface) Mode........................................................................................ 322
Egress Interface Selection (EIS)........................................................................................................ 322
Important Points to Remember..................................................................................................323
Configuring EIS........................................................................................................................... 323
Management Interfaces....................................................................................................................323
Configuring Management Interfaces......................................................................................... 323
Configuring Management Interfaces on the S-Series...............................................................324
VLAN Interfaces.................................................................................................................................325
Loopback Interfaces......................................................................................................................... 326
Null Interfaces...................................................................................................................................326
Port Channel Interfaces....................................................................................................................326
Port Channel Definition and Standards......................................................................................327
Port Channel Benefits................................................................................................................. 327
Port Channel Implementation.................................................................................................... 327
10/100/1000 Mbps Interfaces in Port Channels........................................................................328
Configuration Tasks for Port Channel Interfaces...................................................................... 328
Creating a Port Channel............................................................................................................. 329
Adding a Physical Interface to a Port Channel.......................................................................... 329
Reassigning an Interface to a New Port Channel...................................................................... 331
Configuring the Minimum Oper Up Links in a Port Channel.................................................... 332
..................................................................................................................................................... 332
Assigning an IP Address to a Port Channel................................................................................ 333
Deleting or Disabling a Port Channel.........................................................................................333
Load Balancing Through Port Channels.................................................................................... 333
Load-Balancing Method.............................................................................................................334
Changing the Hash Algorithm....................................................................................................334
Bulk Configuration............................................................................................................................336
Interface Range...........................................................................................................................336
Bulk Configuration Examples..................................................................................................... 336
Defining Interface Range Macros.....................................................................................................338
Define the Interface Range.........................................................................................................338
Choosing an Interface-Range Macro........................................................................................ 338
Monitoring and Maintaining Interfaces............................................................................................339
Maintenance Using TDR.............................................................................................................340
Splitting QSFP Ports to SFP+ Ports.................................................................................................. 340
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................ 341
Important Points to Remember................................................................................................. 342
Support for LM4 Optics.............................................................................................................. 342
Example Scenarios......................................................................................................................342
Link Dampening................................................................................................................................346
Important Points to Remember..................................................................................................347
Enabling Link Dampening...........................................................................................................347
Link Bundle Monitoring.................................................................................................................... 348
Using Ethernet Pause Frames for Flow Control.............................................................................. 349
Enabling Pause Frames...............................................................................................................350
Configure the MTU Size on an Interface......................................................................................... 350
Port-Pipes..........................................................................................................................................351
Auto-Negotiation on Ethernet Interfaces........................................................................................ 351
Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................352
Set Auto-Negotiation Options....................................................................................................353
View Advanced Interface Information............................................................................................. 354
Configuring the Interface Sampling Size................................................................................... 355
Dynamic Counters............................................................................................................................356
Clearing Interface Counters....................................................................................................... 356
Enhanced Validation of Interface Ranges........................................................................................ 357
19 Internet Protocol Security (IPSec)...............................................................358
Configuring IPSec ............................................................................................................................ 359
20 IPv4 Routing................................................................................................... 360
IP Addresses......................................................................................................................................360
Implementation Information......................................................................................................360
Configuration Tasks for IP Addresses.............................................................................................. 360
Assigning IP Addresses to an Interface.............................................................................................361
Configuring Static Routes.................................................................................................................362
Configure Static Routes for the Management Interface.................................................................363
IPv4 Path MTU Discovery Overview.................................................................................................364
Using the Configured Source IP Address in ICMP Messages..........................................................365
Configuring the ICMP Source Interface.....................................................................................365
Configuring the Duration to Establish a TCP Connection..............................................................365
Enabling Directed Broadcast............................................................................................................366
Resolution of Host Names............................................................................................................... 366
Enabling Dynamic Resolution of Host Names................................................................................ 366
Specifying the Local System Domain and a List of Domains..........................................................367
Configuring DNS with Traceroute....................................................................................................367
ARP.................................................................................................................................................... 368
Configuration Tasks for ARP............................................................................................................ 369
Configuring Static ARP Entries......................................................................................................... 369
Enabling Proxy ARP...........................................................................................................................369
Clearing ARP Cache..........................................................................................................................370
ARP Learning via Gratuitous ARP..................................................................................................... 370
Enabling ARP Learning via Gratuitous ARP.......................................................................................371
ARP Learning via ARP Request..........................................................................................................371
Configuring ARP Retries....................................................................................................................372
ICMP.................................................................................................................................................. 373
Configuration Tasks for ICMP...........................................................................................................373
Enabling ICMP Unreachable Messages............................................................................................373
UDP Helper........................................................................................................................................373
Configure UDP Helper................................................................................................................ 373
Important Points to Remember..................................................................................................374
Enabling UDP Helper........................................................................................................................ 374
Configuring a Broadcast Address.....................................................................................................374
Configurations Using UDP Helper....................................................................................................375
UDP Helper with Broadcast-All Addresses...................................................................................... 375
UDP Helper with Subnet Broadcast Addresses................................................................................376
UDP Helper with Configured Broadcast Addresses.........................................................................377
UDP Helper with No Configured Broadcast Addresses...................................................................377
Troubleshooting UDP Helper........................................................................................................... 377
21 IPv6 Routing.................................................................................................... 379
Protocol Overview............................................................................................................................ 379
Extended Address Space.............................................................................................................379
Stateless Autoconfiguration........................................................................................................379
IPv6 Headers............................................................................................................................... 380
IPv6 Header Fields.......................................................................................................................381
Extension Header Fields..............................................................................................................382
Addressing...................................................................................................................................383
Implementing IPv6 with Dell Networking OS..................................................................................385
ICMPv6.............................................................................................................................................. 387
Path MTU Discovery..........................................................................................................................387
IPv6 Neighbor Discovery..................................................................................................................388
IPv6 Neighbor Discovery of MTU Packets.................................................................................389
Configuration Task List for IPv6 RDNSS.......................................................................................... 389
Configuring the IPv6 Recursive DNS Server.............................................................................. 389
Debugging IPv6 RDNSS Information Sent to the Host ............................................................ 390
Displaying IPv6 RDNSS Information........................................................................................... 391
Secure Shell (SSH) Over an IPv6 Transport......................................................................................392
Configuration Tasks for IPv6............................................................................................................ 392
Adjusting Your CAM-Profile........................................................................................................392
Assigning an IPv6 Address to an Interface.................................................................................393
Assigning a Static IPv6 Route..................................................................................................... 393
Configuring Telnet with IPv6......................................................................................................394
SNMP over IPv6...........................................................................................................................394
Showing IPv6 Information.......................................................................................................... 395
Showing an IPv6 Interface..........................................................................................................395
Showing IPv6 Routes..................................................................................................................396
Showing the Running-Configuration for an Interface.............................................................. 397
Clearing IPv6 Routes...................................................................................................................398
22 Intermediate System to Intermediate System..........................................399
IS-IS Protocol Overview................................................................................................................... 399
IS-IS Addressing................................................................................................................................399
Multi-Topology IS-IS........................................................................................................................400
Transition Mode.......................................................................................................................... 401
Interface Support........................................................................................................................ 401
Adjacencies..................................................................................................................................401
Graceful Restart................................................................................................................................ 401
Timers..........................................................................................................................................402
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
23 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............................................................................. 428
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
Setting Up a Threshold for Utilization of High-Gigabit Port Channels.......................................... 439
Guidelines for Monitoring High-Gigabit Port Channels............................................................441
Enabling the Verification of Member Links Utilization in a High-Gigabit Port Channel................442
Viewing Buffer Utilization and Queue Statistics on High-Gigabit Ethernet Backplane Ports....... 442
24 Layer 2............................................................................................................. 444
Manage the MAC Address Table......................................................................................................444
Clearing the MAC Address Table............................................................................................... 444
Setting the Aging Time for Dynamic Entries..............................................................................444
Configuring a Static MAC Address............................................................................................. 445
Displaying the MAC Address Table............................................................................................ 445
MAC Learning Limit.......................................................................................................................... 445
Setting the MAC Learning Limit................................................................................................. 446
mac learning-limit Dynamic.......................................................................................................446
mac learning-limit mac-address-sticky.....................................................................................447
mac learning-limit station-move............................................................................................... 447
mac learning-limit no-station-move.........................................................................................447
Learning Limit Violation Actions................................................................................................ 448
Setting Station Move Violation Actions......................................................................................448
Recovering from Learning Limit and Station Move Violations................................................. 449
NIC Teaming.....................................................................................................................................449
Configure Redundant Pairs...............................................................................................................451
Important Points about Configuring Redundant Pairs..............................................................453
Far-End Failure Detection................................................................................................................ 454
FEFD State Changes....................................................................................................................455
Configuring FEFD........................................................................................................................456
Enabling FEFD on an Interface................................................................................................... 457
Debugging FEFD......................................................................................................................... 458
25 Link Layer Discovery Protocol (LLDP)........................................................460
802.1AB (LLDP) Overview.................................................................................................................460
Protocol Data Units.................................................................................................................... 460
Optional TLVs....................................................................................................................................461
Management TLVs.......................................................................................................................461
TIA-1057 (LLDP-MED) Overview......................................................................................................463
TIA Organizationally Specific TLVs.............................................................................................464
Configure LLDP................................................................................................................................ 468
Related Configuration Tasks...................................................................................................... 468
Important Points to Remember................................................................................................. 469
LLDP Compatibility..................................................................................................................... 469
CONFIGURATION versus INTERFACE Configurations....................................................................469
Enabling LLDP...................................................................................................................................470
Disabling and Undoing LLDP......................................................................................................470
Enabling LLDP on Management Ports............................................................................................. 470
Disabling and Undoing LLDP on Management Ports................................................................470
Advertising TLVs................................................................................................................................ 471
Viewing the LLDP Configuration......................................................................................................472
Viewing Information Advertised by Adjacent LLDP Agents.............................................................473
Configuring LLDPDU Intervals......................................................................................................... 474
Configuring Transmit and Receive Mode........................................................................................ 474
Configuring a Time to Live............................................................................................................... 475
Debugging LLDP...............................................................................................................................476
Relevant Management Objects........................................................................................................ 477
26 Microsoft Network Load Balancing............................................................483
NLB Unicast Mode Scenario.............................................................................................................483
NLB Multicast Mode Scenario..........................................................................................................484
Limitations With Enabling NLB on Switches....................................................................................484
Benefits and Working of Microsoft Clustering................................................................................ 484
Enable and Disable VLAN Flooding .................................................................................................485
Configuring a Switch for NLB ..........................................................................................................485
.....................................................................................................................................................485
27 Multicast Source Discovery Protocol (MSDP)...........................................486
Protocol Overview............................................................................................................................486
Anycast RP........................................................................................................................................ 488
Implementation Information............................................................................................................488
Configure Multicast Source Discovery Protocol.............................................................................488
Related Configuration Tasks...................................................................................................... 488
Enable MSDP.....................................................................................................................................492
Manage the Source-Active Cache...................................................................................................493
Viewing the Source-Active Cache............................................................................................. 493
Limiting the Source-Active Cache.............................................................................................494
Clearing the Source-Active Cache............................................................................................ 494
Enabling the Rejected Source-Active Cache............................................................................ 494
Accept Source-Active Messages that Fail the RFP Check.............................................................. 494
Specifying Source-Active Messages................................................................................................ 498
Limiting the Source-Active Messages from a Peer......................................................................... 499
Preventing MSDP from Caching a Local Source.............................................................................499
Preventing MSDP from Caching a Remote Source........................................................................ 500
Preventing MSDP from Advertising a Local Source.........................................................................501
Logging Changes in Peership States................................................................................................502
Terminating a Peership.....................................................................................................................502
Clearing Peer Statistics..................................................................................................................... 502
Debugging MSDP..............................................................................................................................503
MSDP with Anycast RP..................................................................................................................... 503
Configuring Anycast RP....................................................................................................................505
Reducing Source-Active Message Flooding..............................................................................505
Specifying the RP Address Used in SA Messages.......................................................................505
MSDP Sample Configurations..........................................................................................................508
28 Multiple Spanning Tree Protocol (MSTP)...................................................511
Protocol Overview.............................................................................................................................511
Spanning Tree Variations.................................................................................................................. 512
Implementation Information.......................................................................................................512
Configure Multiple Spanning Tree Protocol.................................................................................... 512
Related Configuration Tasks....................................................................................................... 512
Enable Multiple Spanning Tree Globally...........................................................................................513
Adding and Removing Interfaces......................................................................................................513
Creating Multiple Spanning Tree Instances......................................................................................513
Influencing MSTP Root Selection..................................................................................................... 515
Interoperate with Non-Dell Networking OS Bridges.......................................................................515
Changing the Region Name or Revision..........................................................................................516
Modifying Global Parameters........................................................................................................... 516
Modifying the Interface Parameters................................................................................................. 517
Configuring an EdgePort.................................................................................................................. 518
Flush MAC Addresses after a Topology Change..............................................................................519
MSTP Sample Configurations........................................................................................................... 519
Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationSFTOS Example Running-Configuration............................................................ 520
Debugging and Verifying MSTP Configurations.............................................................................. 523
29 Multicast Features..........................................................................................526
Enabling IP Multicast.........................................................................................................................526
Multicast with ECMP.........................................................................................................................526
Implementation Information............................................................................................................ 527
First Packet Forwarding for Lossless Multicast................................................................................ 528
Multicast Policies.............................................................................................................................. 528
IPv4 Multicast Policies................................................................................................................ 528
30 Open Shortest Path First (OSPFv2 and OSPFv3)...................................... 536
Protocol Overview............................................................................................................................536
Autonomous System (AS) Areas................................................................................................. 536
Area Types................................................................................................................................... 537
Networks and Neighbors............................................................................................................538
Router Types............................................................................................................................... 538
Designated and Backup Designated Routers............................................................................ 540
Link-State Advertisements (LSAs)...............................................................................................540
Router Priority and Cost............................................................................................................. 542
OSPF with Dell Networking OS........................................................................................................542
Graceful Restart.......................................................................................................................... 543
Fast Convergence (OSPFv2, IPv4 Only)..................................................................................... 544
Multi-Process OSPFv2 (IPv4 only)..............................................................................................544
RFC-2328 Compliant OSPF Flooding........................................................................................ 545
OSPF ACK Packing......................................................................................................................546
Setting OSPF Adjacency with Cisco Routers............................................................................. 546
Configuration Information................................................................................................................547
Configuration Task List for OSPFv2 (OSPF for IPv4)..................................................................547
Sample Configurations for OSPFv2..................................................................................................562
Basic OSPFv2 Router Topology..................................................................................................562
OSPF Area 0 — Gl 1/1 and 1/2.................................................................................................... 562
OSPF Area 0 — Gl 3/1 and 3/2....................................................................................................563
OSPF Area 0 — Gl 2/1 and 2/2....................................................................................................563
Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................563
Enabling IPv6 Unicast Routing................................................................................................... 564
Assigning IPv6 Addresses on an Interface................................................................................. 564
Assigning Area ID on an Interface..............................................................................................564
Assigning OSPFv3 Process ID and Router ID Globally.............................................................. 565
Configuring Stub Areas...............................................................................................................565
Configuring Passive-Interface....................................................................................................566
Redistributing Routes..................................................................................................................566
Configuring a Default Route.......................................................................................................567
Enabling OSPFv3 Graceful Restart..............................................................................................567
OSPFv3 Authentication Using IPsec...........................................................................................569
Troubleshooting OSPFv3............................................................................................................ 577
31 Policy-based Routing (PBR)..........................................................................579
Overview............................................................................................................................................579
Implementing Policy-based Routing with Dell Networking OS......................................................581
Configuration Task List for Policy-based Routing...........................................................................581
PBR Exceptions (Permit)............................................................................................................. 584
Sample Configuration.......................................................................................................................586
Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View
Redirect-List GOLD.....................................................................................................................587
32 PIM Sparse-Mode (PIM-SM)......................................................................... 589
Implementation Information............................................................................................................589
Protocol Overview............................................................................................................................589
Requesting Multicast Traffic.......................................................................................................589
Refuse Multicast Traffic.............................................................................................................. 590
Send Multicast Traffic................................................................................................................. 590
Configuring PIM-SM..........................................................................................................................591
Related Configuration Tasks.......................................................................................................591
Enable PIM-SM.................................................................................................................................. 591
Configuring S,G Expiry Timers......................................................................................................... 592
Configuring a Static Rendezvous Point........................................................................................... 593
Overriding Bootstrap Router Updates....................................................................................... 594
Configuring a Designated Router.................................................................................................... 594
Creating Multicast Boundaries and Domains.................................................................................. 595
Enabling PIM-SM Graceful Restart...................................................................................................595
33 PIM Source-Specific Mode (PIM-SSM)....................................................... 596
Implementation Information............................................................................................................596
Important Points to Remember................................................................................................. 596
Configure PIM-SMM......................................................................................................................... 597
Related Configuration Tasks.......................................................................................................597
Enabling PIM-SSM.............................................................................................................................597
Use PIM-SSM with IGMP Version 2 Hosts........................................................................................597
Configuring PIM-SSM with IGMPv2........................................................................................... 598
34 Port Monitoring............................................................................................. 600
Important Points to Remember.......................................................................................................600
Port Monitoring.................................................................................................................................601
Configuring Port Monitoring............................................................................................................602
Enabling Flow-Based Monitoring.................................................................................................... 604
Remote Port Mirroring..................................................................................................................... 605
Remote Port Mirroring Example................................................................................................ 605
Configuring Remote Port Mirroring...........................................................................................606
Displaying Remote-Port Mirroring Configurations...................................................................608
Configuring the Sample Remote Port Mirroring....................................................................... 608
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