Dell Configuration Guide for the S4810
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.
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2014 - 09
Rev. A00
Contents
1 About this Guide..................................................................................................35
Audience..............................................................................................................................................35
Conventions........................................................................................................................................ 35
Related Documents.............................................................................................................................35
2 Configuration Fundamentals........................................................................... 36
Accessing the Command Line............................................................................................................36
CLI Modes............................................................................................................................................36
Navigating CLI Modes................................................................................................................... 37
The do Command............................................................................................................................... 41
Undoing Commands...........................................................................................................................41
Obtaining Help.................................................................................................................................... 42
Entering and Editing Commands....................................................................................................... 42
Command History...............................................................................................................................43
Filtering show Command Outputs.....................................................................................................44
Multiple Users in Configuration Mode............................................................................................... 45
3 Getting Started....................................................................................................46
Console Access...................................................................................................................................46
Serial Console................................................................................................................................46
Accessing the CLI Interface and Running Scripts Using SSH............................................................ 47
S4810 ............................................................................................................................................ 47
Entering CLI commands Using an SSH Connection................................................................... 48
Executing Local CLI Scripts Using an SSH Connection...............................................................48
Default Configuration......................................................................................................................... 49
Configuring a Host Name...................................................................................................................49
Accessing the System Remotely........................................................................................................ 49
Accessing the System Remotely...................................................................................................49
Configure the Management Port IP Address............................................................................... 49
Configure a Management Route..................................................................................................50
Configuring a Username and Password.......................................................................................50
Configuring the Enable Password......................................................................................................50
Configuration File Management......................................................................................................... 51
Copy Files to and from the System...............................................................................................51
Save the Running-Configuration..................................................................................................52
Configure the Overload Bit for a Startup Scenario...................................................................... 53
Viewing Files.................................................................................................................................. 53
Compressing Configuration Files................................................................................................. 54
Managing the File System................................................................................................................... 57
Enabling Software Features on Devices Using a Command Option................................................ 58
View Command History......................................................................................................................59
Upgrading Dell Networking OS.......................................................................................................... 59
Using Hashes to Validate Software Images........................................................................................59
Using HTTP for File Transfers.............................................................................................................60
4 Management........................................................................................................61
Configuring Privilege Levels................................................................................................................61
Creating a Custom Privilege Level................................................................................................61
Removing a Command from EXEC Mode....................................................................................61
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 62
Allowing Access to CONFIGURATION Mode Commands.......................................................... 62
Allowing Access to the Following Modes.................................................................................... 62
Applying a Privilege Level to a Username.................................................................................... 64
Applying a Privilege Level to a Terminal Line...............................................................................64
Configuring Logging...........................................................................................................................64
Audit and Security Logs.................................................................................................................65
Configuring Logging Format .......................................................................................................67
Display the Logging Buffer and the Logging Configuration........................................................67
Setting Up a Secure Connection to a Syslog Server....................................................................68
Sending System Messages to a Syslog Server..............................................................................69
Log Messages in the Internal Buffer...................................................................................................69
Configuration Task List for System Log Management................................................................ 69
Disabling System Logging.................................................................................................................. 69
Sending System Messages to a Syslog Server....................................................................................70
Configuring a UNIX System as a Syslog Server............................................................................70
Changing System Logging Settings....................................................................................................70
Display the Logging Buffer and the Logging Configuration..............................................................71
Configuring a UNIX Logging Facility Level.........................................................................................72
Synchronizing Log Messages..............................................................................................................73
Enabling Timestamp on Syslog Messages..........................................................................................74
File Transfer Services...........................................................................................................................74
Configuration Task List for File Transfer Services........................................................................ 74
Enabling the FTP Server.................................................................................................................75
Configuring FTP Server Parameters..............................................................................................75
Configuring FTP Client Parameters.............................................................................................. 75
Terminal Lines..................................................................................................................................... 76
Denying and Permitting Access to a Terminal Line..................................................................... 76
Configuring Login Authentication for Terminal Lines..................................................................77
Setting Time Out of EXEC Privilege Mode......................................................................................... 78
Using Telnet to get to Another Network Device............................................................................... 78
Lock CONFIGURATION Mode............................................................................................................79
Viewing the Configuration Lock Status........................................................................................ 79
Recovering from a Forgotten Password on the S4810 System........................................................80
Recovering from a Forgotten Enable Password on the S4810 ...................................................81
Recovering from a Failed Start on the S4810 System....................................................................... 82
Restoring the Factory Default Settings...............................................................................................83
S4810MXL Switch..........................................................................................................................83
Important Points to Remember....................................................................................................83
Restoring Factory Default Environment Variables....................................................................... 83
5 802.1ag................................................................................................................. 86
Ethernet CFM...................................................................................................................................... 86
Maintenance Domains........................................................................................................................ 87
Maintenance Points.............................................................................................................................87
Maintenance End Points.....................................................................................................................88
Implementation Information..............................................................................................................89
Configuring the CFM.......................................................................................................................... 89
Related Configuration Tasks.........................................................................................................89
Enabling Ethernet CFM.......................................................................................................................89
Creating a Maintenance Domain....................................................................................................... 89
Creating a Maintenance Association..................................................................................................90
Create Maintenance Points................................................................................................................ 90
Creating a Maintenance End Point...............................................................................................90
Creating a Maintenance Intermediate Point.................................................................................91
Displaying the MP Databases........................................................................................................92
Continuity Check Messages............................................................................................................... 93
Enabling CCM................................................................................................................................94
Enabling Cross-Checking.............................................................................................................94
Sending Loopback Messages and Responses................................................................................... 94
Sending Linktrace Messages and Responses.....................................................................................95
Caching Link Trace........................................................................................................................95
Enabling CFM SNMP Traps................................................................................................................. 96
Displaying Ethernet CFM Statistics.....................................................................................................98
6 802.1X...................................................................................................................99
The Port-Authentication Process.....................................................................................................100
EAP over RADIUS.........................................................................................................................102
Configuring 802.1X........................................................................................................................... 102
Related Configuration Tasks.......................................................................................................102
Important Points to Remember........................................................................................................103
Enabling 802.1X.................................................................................................................................103
Configuring Request Identity Re-Transmissions............................................................................. 105
Configuring a Quiet Period after a Failed Authentication......................................................... 105
Forcibly Authorizing or Unauthorizing a Port..................................................................................106
Re-Authenticating a Port.................................................................................................................. 107
Configuring Timeouts.......................................................................................................................108
Configuring Dynamic VLAN Assignment with Port Authentication................................................109
Guest and Authentication-Fail VLANs.............................................................................................. 110
Configuring a Guest VLAN...........................................................................................................111
Configuring an Authentication-Fail VLAN...................................................................................111
7 Access Control List (ACL) VLAN Groups and Content Addressable
Memory (CAM)...................................................................................................... 113
Optimizing CAM Utilization During the Attachment of ACLs to VLANs..........................................113
Guidelines for Configuring ACL VLAN groups................................................................................. 114
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.........................115
Configuring ACL VLAN Groups................................................................................................... 115
Configuring FP Blocks for VLAN Parameters..............................................................................116
Viewing CAM Usage...........................................................................................................................117
Allocating FP Blocks for VLAN Processes.........................................................................................118
8 Access Control Lists (ACLs)............................................................................ 120
IP Access Control Lists (ACLs)...........................................................................................................121
CAM Usage...................................................................................................................................121
Implementing ACLs on Dell Networking OS..............................................................................123
Important Points to Remember........................................................................................................124
Configuration Task List for Route Maps..................................................................................... 124
Configuring Match Routes.......................................................................................................... 127
Configuring Set Conditions........................................................................................................ 128
Configure a Route Map for Route Redistribution...................................................................... 129
Configure a Route Map for Route Tagging................................................................................130
Continue Clause..........................................................................................................................130
IP Fragment Handling........................................................................................................................131
IP Fragments ACL Examples........................................................................................................131
Layer 4 ACL Rules Examples....................................................................................................... 132
Configure a Standard IP ACL............................................................................................................ 133
Configuring a Standard IP ACL Filter.......................................................................................... 134
Configure an Extended IP ACL......................................................................................................... 135
Configuring Filters with a Sequence Number............................................................................ 135
Configuring Filters Without a Sequence Number......................................................................136
Configure Layer 2 and Layer 3 ACLs.................................................................................................137
Assign an IP ACL to an Interface.......................................................................................................138
Applying an IP ACL............................................................................................................................138
Counting ACL Hits.......................................................................................................................139
Configure Ingress ACLs.....................................................................................................................139
Configure Egress ACLs..................................................................................................................... 140
Applying Egress Layer 3 ACLs (Control-Plane)...........................................................................141
IP Prefix Lists...................................................................................................................................... 141
Implementation Information...................................................................................................... 142
Configuration Task List for Prefix Lists....................................................................................... 142
ACL Resequencing............................................................................................................................146
Resequencing an ACL or Prefix List............................................................................................146
Route Maps........................................................................................................................................148
Implementation Information...................................................................................................... 148
Logging of ACL Processes................................................................................................................148
Guidelines for Configuring ACL Logging................................................................................... 149
Configuring ACL Logging........................................................................................................... 150
Flow-Based Monitoring Support for ACLs........................................................................................151
Behavior of Flow-Based Monitoring........................................................................................... 151
Enabling Flow-Based Monitoring............................................................................................... 153
9 Bidirectional Forwarding Detection (BFD)...................................................155
How BFD Works................................................................................................................................ 155
BFD Packet Format......................................................................................................................156
BFD Sessions................................................................................................................................158
BFD Three-Way Handshake........................................................................................................158
Session State Changes................................................................................................................ 159
Important Points to Remember....................................................................................................... 160
Configure BFD...................................................................................................................................160
Configure BFD for Physical Ports................................................................................................161
Configure BFD for Static Routes.................................................................................................164
Configure BFD for OSPF............................................................................................................. 166
Configure BFD for OSPFv3......................................................................................................... 169
Configure BFD for IS-IS...............................................................................................................170
Configure BFD for BGP............................................................................................................... 173
Configure BFD for VRRP............................................................................................................. 180
Configuring Protocol Liveness................................................................................................... 183
Troubleshooting BFD.................................................................................................................. 183
10 Border Gateway Protocol IPv4 (BGPv4).....................................................185
Autonomous Systems (AS)................................................................................................................185
Sessions and Peers............................................................................................................................ 187
Establish a Session.......................................................................................................................188
Route Reflectors................................................................................................................................188
BGP Attributes................................................................................................................................... 189
Best Path Selection Criteria........................................................................................................ 190
Weight..........................................................................................................................................192
Local Preference......................................................................................................................... 192
Multi-Exit Discriminators (MEDs)................................................................................................ 193
Origin........................................................................................................................................... 194
AS Path.........................................................................................................................................195
Next Hop......................................................................................................................................195
Multiprotocol BGP............................................................................................................................ 196
Implement BGP with Dell Networking OS.......................................................................................196
Additional Path (Add-Path) Support........................................................................................... 196
Advertise IGP Cost as MED for Redistributed Routes................................................................ 196
Ignore Router-ID for Some Best-Path Calculations.................................................................. 197
Four-Byte AS Numbers................................................................................................................197
AS4 Number Representation...................................................................................................... 198
AS Number Migration..................................................................................................................199
BGP4 Management Information Base (MIB).............................................................................. 201
Important Points to Remember..................................................................................................201
Configuration Information............................................................................................................... 202
BGP Configuration............................................................................................................................202
Enabling BGP...............................................................................................................................203
Configuring AS4 Number Representations................................................................................207
Configuring Peer Groups........................................................................................................... 209
Configuring BGP Fast Fall-Over.................................................................................................. 211
Configuring Passive Peering....................................................................................................... 213
Maintaining Existing AS Numbers During an AS Migration........................................................214
Allowing an AS Number to Appear in its Own AS Path..............................................................215
Enabling Graceful Restart............................................................................................................216
Enabling Neighbor Graceful Restart........................................................................................... 217
Filtering on an AS-Path Attribute................................................................................................ 217
Regular Expressions as Filters..................................................................................................... 219
Redistributing Routes..................................................................................................................220
Enabling Additional Paths............................................................................................................221
Configuring IP Community Lists.................................................................................................221
Configuring an IP Extended Community List............................................................................ 223
Filtering Routes with Community Lists...................................................................................... 224
Manipulating the COMMUNITY Attribute...................................................................................224
Changing MED Attributes........................................................................................................... 226
Changing the LOCAL_PREFERENCE Attribute.......................................................................... 226
Changing the NEXT_HOP Attribute........................................................................................... 227
Changing the WEIGHT Attribute................................................................................................ 228
Enabling Multipath...................................................................................................................... 228
Filtering BGP Routes................................................................................................................... 228
Filtering BGP Routes Using Route Maps....................................................................................230
Filtering BGP Routes Using AS-PATH Information.................................................................... 231
Configuring BGP Route Reflectors.............................................................................................231
Aggregating Routes.....................................................................................................................232
Configuring BGP Confederations...............................................................................................233
Enabling Route Flap Dampening................................................................................................233
Changing BGP Timers.................................................................................................................236
Enabling BGP Neighbor Soft-Reconfiguration..........................................................................236
Route Map Continue...................................................................................................................238
Enabling MBGP Configurations........................................................................................................238
BGP Regular Expression Optimization.............................................................................................239
Debugging BGP................................................................................................................................ 239
Storing Last and Bad PDUs.........................................................................................................240
Capturing PDUs...........................................................................................................................241
PDU Counters............................................................................................................................. 242
Sample Configurations..................................................................................................................... 243
11 Content Addressable Memory (CAM)......................................................... 249
CAM Allocation................................................................................................................................. 249
Test CAM Usage................................................................................................................................ 251
View CAM-ACL Settings....................................................................................................................251
View CAM Usage...............................................................................................................................253
CAM Optimization............................................................................................................................ 254
Troubleshoot CAM Profiling.............................................................................................................254
CAM Profile Mismatches.............................................................................................................254
QoS CAM Region Limitation.......................................................................................................254
12 Control Plane Policing (CoPP)..................................................................... 256
Configure Control Plane Policing.................................................................................................... 257
Configuring CoPP for Protocols................................................................................................ 258
Configuring CoPP for CPU Queues...........................................................................................260
CoPP for OSPFv3 Packets...........................................................................................................261
Configuring CoPP for OSPFv3................................................................................................... 264
Show Commands....................................................................................................................... 265
13 Data Center Bridging (DCB)..........................................................................267
Ethernet Enhancements in Data Center Bridging........................................................................... 267
Priority-Based Flow Control.......................................................................................................268
Enhanced Transmission Selection............................................................................................. 269
Data Center Bridging Exchange Protocol (DCBx)......................................................................271
Data Center Bridging in a Traffic Flow....................................................................................... 272
Enabling Data Center Bridging......................................................................................................... 272
QoS dot1p Traffic Classification and Queue Assignment............................................................... 273
DCB Maps and its Attributes.............................................................................................................274
DCB Map: Configuration Procedure.......................................................................................... 274
Important Points to Remember..................................................................................................274
Applying a DCB Map on a Port................................................................................................... 275
Configuring PFC without a DCB Map.........................................................................................275
Configuring Lossless Queues..................................................................................................... 276
Data Center Bridging: Default Configuration...................................................................................277
Configuring PFC and ETS in a DCB Map..........................................................................................277
PFC Configuration Notes............................................................................................................ 277
PFC Prerequisites and Restrictions.............................................................................................279
ETS Configuration Notes............................................................................................................ 279
ETS Prerequisites and Restrictions.............................................................................................280
Configuring Priority-Based Flow Control........................................................................................280
Configuring Lossless Queues.....................................................................................................282
Configure Enhanced Transmission Selection..................................................................................282
ETS Prerequisites and Restrictions............................................................................................. 283
Creating an ETS Priority Group.................................................................................................. 283
ETS Operation with DCBx...........................................................................................................283
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 284
Applying DCB Policies in a Switch Stack..........................................................................................285
Configure a DCBx Operation........................................................................................................... 285
DCBx Operation..........................................................................................................................285
DCBx Port Roles..........................................................................................................................286
DCB Configuration Exchange.................................................................................................... 288
Configuration Source Election...................................................................................................288
Propagation of DCB Information............................................................................................... 288
Auto-Detection and Manual Configuration of the DCBx Version............................................289
Behavior of Tagged Packets.......................................................................................................289
Configuration Example for DSCP and PFC Priorities................................................................ 290
DCBx Example.............................................................................................................................291
DCBx Prerequisites and Restrictions.......................................................................................... 291
Configuring DCBx.......................................................................................................................292
Verifying the DCB Configuration..................................................................................................... 296
Using PFC and ETS to Manage Data Center Traffic........................................................................ 307
PFC and ETS Configuration Command Examples.................................................................... 309
Using PFC and ETS to Manage Converged Ethernet Traffic.....................................................309
Hierarchical Scheduling in ETS Output Policies........................................................................309
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................310
Pause and Resume of Traffic...................................................................................................... 310
Buffer Sizes for Lossless or PFC Packets.....................................................................................311
Configuring the Dynamic Buffer Method......................................................................................... 311
14 Dynamic Host Configuration Protocol (DHCP)........................................ 313
DHCP Packet Format and Options...................................................................................................313
Assign an IP Address using DHCP.....................................................................................................315
Implementation Information............................................................................................................ 316
Configure the System to be a DHCP Server.....................................................................................317
Configuring the Server for Automatic Address Allocation.........................................................317
Specifying a Default Gateway..................................................................................................... 319
Configure a Method of Hostname Resolution...........................................................................319
Using DNS for Address Resolution............................................................................................. 319
Using NetBIOS WINS for Address Resolution............................................................................ 319
Creating Manual Binding Entries................................................................................................320
Debugging the DHCP Server......................................................................................................320
Using DHCP Clear Commands.................................................................................................. 320
Configure the System to be a Relay Agent...................................................................................... 321
Configure the System to be a DHCP Client.....................................................................................323
Configuring the DHCP Client System........................................................................................ 323
DHCP Client on a Management Interface................................................................................. 325
DHCP Client Operation with Other Features.............................................................................325
Configure the System for User Port Stacking (Option 230)............................................................326
Configure Secure DHCP...................................................................................................................327
Option 82.....................................................................................................................................327
DHCP Snooping..........................................................................................................................328
Drop DHCP Packets on Snooped VLANs Only..........................................................................330
Dynamic ARP Inspection............................................................................................................ 330
Configuring Dynamic ARP Inspection........................................................................................ 331
Source Address Validation................................................................................................................332
Enabling IP Source Address Validation.......................................................................................332
DHCP MAC Source Address Validation......................................................................................333
Enabling IP+MAC Source Address Validation............................................................................ 333
Viewing the Number of SAV Dropped Packets..........................................................................334
Clearing the Number of SAV Dropped Packets......................................................................... 335
15 Equal Cost Multi-Path (ECMP)..................................................................... 336
ECMP for Flow-Based Affinity.......................................................................................................... 336
Configuring the Hash Algorithm................................................................................................ 336
Enabling Deterministic ECMP Next Hop....................................................................................336
Configuring the Hash Algorithm Seed....................................................................................... 337
Link Bundle Monitoring.....................................................................................................................337
Managing ECMP Group Paths.................................................................................................... 338
Creating an ECMP Group Bundle...............................................................................................339
Modifying the ECMP Group Threshold......................................................................................339
16 FCoE Transit.................................................................................................... 341
Fibre Channel over Ethernet.............................................................................................................341
Ensure Robustness in a Converged Ethernet Network................................................................... 341
FIP Snooping on Ethernet Bridges................................................................................................... 343
FIP Snooping in a Switch Stack........................................................................................................ 345
Using FIP Snooping...........................................................................................................................345
FIP Snooping Prerequisites.........................................................................................................345
Important Points to Remember................................................................................................. 346
Enabling the FCoE Transit Feature.............................................................................................346
Enable FIP Snooping on VLANs.................................................................................................. 347
Configure the FC-MAP Value..................................................................................................... 347
Configure a Port for a Bridge-to-Bridge Link............................................................................ 347
Configure a Port for a Bridge-to-FCF Link................................................................................ 347
Impact on Other Software Features...........................................................................................347
FIP Snooping Restrictions...........................................................................................................348
Configuring FIP Snooping.......................................................................................................... 348
Displaying FIP Snooping Information.............................................................................................. 349
FCoE Transit Configuration Example...............................................................................................355
17 Enabling FIPS Cryptography.........................................................................357
Configuration Tasks.......................................................................................................................... 357
Preparing the System........................................................................................................................357
Enabling FIPS Mode.......................................................................................................................... 358
Generating Host-Keys...................................................................................................................... 358
Monitoring FIPS Mode Status........................................................................................................... 359
Disabling FIPS Mode......................................................................................................................... 359
18 Force10 Resilient Ring Protocol (FRRP)..................................................... 361
Protocol Overview............................................................................................................................ 361
Ring Status...................................................................................................................................362
Multiple FRRP Rings.................................................................................................................... 363
Important FRRP Points................................................................................................................363
Important FRRP Concepts..........................................................................................................363
Implementing FRRP.......................................................................................................................... 365
FRRP Configuration.......................................................................................................................... 365
Creating the FRRP Group........................................................................................................... 365
Configuring the Control VLAN...................................................................................................366
Configuring and Adding the Member VLANs.............................................................................367
Setting the FRRP Timers............................................................................................................. 368
Clearing the FRRP Counters.......................................................................................................369
Viewing the FRRP Configuration................................................................................................369
Viewing the FRRP Information................................................................................................... 369
Troubleshooting FRRP......................................................................................................................370
Configuration Checks.................................................................................................................370
Sample Configuration and Topology...............................................................................................370
19 GARP VLAN Registration Protocol (GVRP)................................................ 372
Important Points to Remember........................................................................................................372
Configure GVRP................................................................................................................................ 373
Related Configuration Tasks.......................................................................................................373
Enabling GVRP Globally....................................................................................................................374
Enabling GVRP on a Layer 2 Interface............................................................................................. 374
Configure GVRP Registration........................................................................................................... 374
Configure a GARP Timer...................................................................................................................375
RPM Redundancy..............................................................................................................................376
20 High Availability (HA).....................................................................................377
Component Redundancy................................................................................................................. 377
Automatic and Manual Stack Unit Failover.................................................................................377
Synchronization between Management and Standby Units.....................................................378
Forcing an Stack Unit Failover.................................................................................................... 378
Specifying an Auto-Failover Limit...............................................................................................379
Disabling Auto-Reboot............................................................................................................... 379
Manually Synchronizing Management and Standby Units........................................................379
Pre-Configuring a Stack Unit Slot.................................................................................................... 379
Removing a Provisioned Logical Stack Unit....................................................................................380
Hitless Behavior................................................................................................................................ 380
Graceful Restart.................................................................................................................................381
Software Resiliency........................................................................................................................... 381
Software Component Health Monitoring.................................................................................. 381
System Health Monitoring.......................................................................................................... 381
Failure and Event Logging...........................................................................................................381
Hot-Lock Behavior........................................................................................................................... 382
21 Internet Group Management Protocol (IGMP).........................................383
IGMP Implementation Information..................................................................................................383
IGMP Protocol Overview..................................................................................................................383
IGMP Version 2............................................................................................................................383
IGMP Version 3............................................................................................................................385
Configure IGMP................................................................................................................................ 388
Related Configuration Tasks...................................................................................................... 388
Viewing IGMP Enabled Interfaces....................................................................................................389
Selecting an IGMP Version............................................................................................................... 389
Viewing IGMP Groups...................................................................................................................... 390
Adjusting Timers............................................................................................................................... 390
Adjusting Query and Response Timers......................................................................................390
Adjusting the IGMP Querier Timeout Value...............................................................................391
Configuring a Static IGMP Group.....................................................................................................391
Enabling IGMP Immediate-Leave.................................................................................................... 392
IGMP Snooping.................................................................................................................................392
IGMP Snooping Implementation Information........................................................................... 392
Configuring IGMP Snooping...................................................................................................... 392
Removing a Group-Port Association......................................................................................... 393
Disabling Multicast Flooding...................................................................................................... 393
Specifying a Port as Connected to a Multicast Router..............................................................394
Configuring the Switch as Querier.............................................................................................394
Fast Convergence after MSTP Topology Changes..........................................................................395
Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................395
Protocol Separation....................................................................................................................396
Enabling and Disabling Management Egress Interface Selection.............................................397
Handling of Management Route Configuration........................................................................398
Handling of Switch-Initiated Traffic...........................................................................................398
Handling of Switch-Destined Traffic..........................................................................................399
Handling of Transit Traffic (Traffic Separation)......................................................................... 400
Mapping of Management Applications and Traffic Type..........................................................400
Behavior of Various Applications for Switch-Initiated Traffic .................................................. 401
Behavior of Various Applications for Switch-Destined Traffic .................................................402
Interworking of EIS With Various Applications.......................................................................... 403
Designating a Multicast Router Interface........................................................................................ 404
22 Interfaces.........................................................................................................405
Basic Interface Configuration.......................................................................................................... 405
Advanced Interface Configuration...................................................................................................405
Interface Types................................................................................................................................. 406
View Basic Interface Information.....................................................................................................406
Enabling a Physical Interface........................................................................................................... 408
Physical Interfaces............................................................................................................................408
Configuration Task List for Physical Interfaces......................................................................... 409
Overview of Layer Modes...........................................................................................................409
Configuring Layer 2 (Data Link) Mode.......................................................................................409
Configuring Layer 2 (Interface) Mode........................................................................................ 410
Configuring Layer 3 (Network) Mode.........................................................................................410
Configuring Layer 3 (Interface) Mode.........................................................................................411
Egress Interface Selection (EIS).........................................................................................................411
Important Points to Remember..................................................................................................412
Configuring EIS............................................................................................................................412
Management Interfaces.................................................................................................................... 412
Configuring Management Interfaces......................................................................................... 412
Configuring Management Interfaces on the S-Series............................................................... 413
VLAN Interfaces.................................................................................................................................414
Loopback Interfaces..........................................................................................................................415
Null Interfaces................................................................................................................................... 415
Port Channel Interfaces.................................................................................................................... 415
Port Channel Definition and Standards......................................................................................416
Port Channel Benefits................................................................................................................. 416
Port Channel Implementation....................................................................................................416
10/100/1000 Mbps Interfaces in Port Channels........................................................................ 417
Configuration Tasks for Port Channel Interfaces.......................................................................417
Creating a Port Channel..............................................................................................................417
Adding a Physical Interface to a Port Channel...........................................................................418
Reassigning an Interface to a New Port Channel......................................................................420
Configuring the Minimum Oper Up Links in a Port Channel.................................................... 421
......................................................................................................................................................421
Assigning an IP Address to a Port Channel................................................................................422
Deleting or Disabling a Port Channel.........................................................................................422
Load Balancing Through Port Channels....................................................................................422
Load-Balancing Method.............................................................................................................422
Changing the Hash Algorithm....................................................................................................423
Bulk Configuration............................................................................................................................424
Interface Range...........................................................................................................................424
Bulk Configuration Examples..................................................................................................... 425
Defining Interface Range Macros.................................................................................................... 426
Define the Interface Range.........................................................................................................427
Choosing an Interface-Range Macro.........................................................................................427
Monitoring and Maintaining Interfaces............................................................................................ 427
Maintenance Using TDR.............................................................................................................428
Splitting QSFP Ports to SFP+ Ports.................................................................................................. 429
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................430
Important Points to Remember................................................................................................. 430
Support for LM4 Optics...............................................................................................................431
Example Scenarios...................................................................................................................... 431
Link Dampening................................................................................................................................435
Important Points to Remember................................................................................................. 435
Enabling Link Dampening...........................................................................................................435
Link Bundle Monitoring.....................................................................................................................437
Using Ethernet Pause Frames for Flow Control.............................................................................. 437
Enabling Pause Frames...............................................................................................................438
Configure the MTU Size on an Interface......................................................................................... 439
Port-Pipes.........................................................................................................................................440
Auto-Negotiation on Ethernet Interfaces....................................................................................... 440
Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................... 440
Set Auto-Negotiation Options................................................................................................... 442
View Advanced Interface Information............................................................................................. 443
Configuring the Interface Sampling Size................................................................................... 443
Dynamic Counters............................................................................................................................445
Clearing Interface Counters....................................................................................................... 445
Enhanced Validation of Interface Ranges....................................................................................... 446
23 Internet Protocol Security (IPSec).............................................................. 447
Configuring IPSec ............................................................................................................................448
24 IPv4 Routing................................................................................................... 449
IP Addresses......................................................................................................................................449
Implementation Information......................................................................................................449
Configuration Tasks for IP Addresses.............................................................................................. 449
Assigning IP Addresses to an Interface............................................................................................450
Configuring Static Routes.................................................................................................................451
Configure Static Routes for the Management Interface.................................................................452
IPv4 Path MTU Discovery Overview.................................................................................................453
Using the Configured Source IP Address in ICMP Messages..........................................................454
Configuring the ICMP Source Interface.....................................................................................454
Configuring the Duration to Establish a TCP Connection..............................................................454
Enabling Directed Broadcast............................................................................................................455
Resolution of Host Names............................................................................................................... 455
Enabling Dynamic Resolution of Host Names................................................................................ 455
Specifying the Local System Domain and a List of Domains..........................................................456
Configuring DNS with Traceroute................................................................................................... 456
ARP.................................................................................................................................................... 457
Configuration Tasks for ARP............................................................................................................ 458
Configuring Static ARP Entries.........................................................................................................458
Enabling Proxy ARP...........................................................................................................................459
Clearing ARP Cache..........................................................................................................................459
ARP Learning via Gratuitous ARP..................................................................................................... 459
Enabling ARP Learning via Gratuitous ARP......................................................................................460
ARP Learning via ARP Request.........................................................................................................460
Configuring ARP Retries....................................................................................................................461
ICMP..................................................................................................................................................462
Configuration Tasks for ICMP.......................................................................................................... 462
Enabling ICMP Unreachable Messages............................................................................................462
UDP Helper....................................................................................................................................... 462
Configure UDP Helper................................................................................................................462
Important Points to Remember................................................................................................. 463
Enabling UDP Helper........................................................................................................................463
Configuring a Broadcast Address.....................................................................................................463
Configurations Using UDP Helper................................................................................................... 464
UDP Helper with Broadcast-All Addresses......................................................................................464
UDP Helper with Subnet Broadcast Addresses............................................................................... 465
UDP Helper with Configured Broadcast Addresses........................................................................466
UDP Helper with No Configured Broadcast Addresses..................................................................466
Troubleshooting UDP Helper...........................................................................................................466
25 IPv6 Routing................................................................................................... 468
Protocol Overview............................................................................................................................468
Extended Address Space............................................................................................................ 468
Stateless Autoconfiguration....................................................................................................... 468
IPv6 Headers............................................................................................................................... 469
IPv6 Header Fields.......................................................................................................................470
Extension Header Fields.............................................................................................................. 471
Addressing................................................................................................................................... 472
Implementing IPv6 with Dell Networking OS..................................................................................474
ICMPv6.............................................................................................................................................. 476
Path MTU Discovery......................................................................................................................... 476
IPv6 Neighbor Discovery.................................................................................................................. 477
IPv6 Neighbor Discovery of MTU Packets................................................................................. 478
Configuration Task List for IPv6 RDNSS...........................................................................................478
Configuring the IPv6 Recursive DNS Server.............................................................................. 478
Debugging IPv6 RDNSS Information Sent to the Host .............................................................479
Displaying IPv6 RDNSS Information.......................................................................................... 480
Secure Shell (SSH) Over an IPv6 Transport......................................................................................481
Configuration Tasks for IPv6............................................................................................................ 481
Adjusting Your CAM-Profile........................................................................................................481
Assigning an IPv6 Address to an Interface.................................................................................482
Assigning a Static IPv6 Route..................................................................................................... 482
Configuring Telnet with IPv6......................................................................................................483
SNMP over IPv6...........................................................................................................................483
Showing IPv6 Information..........................................................................................................484
Showing an IPv6 Interface..........................................................................................................484
Showing IPv6 Routes..................................................................................................................485
Showing the Running-Configuration for an Interface..............................................................486
Clearing IPv6 Routes...................................................................................................................487
26 iSCSI Optimization........................................................................................ 488
iSCSI Optimization Overview...........................................................................................................488
Monitoring iSCSI Traffic Flows...................................................................................................490
Application of Quality of Service to iSCSI Traffic Flows............................................................490
Information Monitored in iSCSI Traffic Flows........................................................................... 490
Detection and Auto-Configuration for Dell EqualLogic Arrays.................................................491
Configuring Detection and Ports for Dell Compellent Arrays.................................................. 492
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................492
Enable and Disable iSCSI Optimization......................................................................................492
Default iSCSI Optimization Values...................................................................................................493
iSCSI Optimization Prerequisites..................................................................................................... 494
Configuring iSCSI Optimization.......................................................................................................494
Displaying iSCSI Optimization Information..................................................................................... 496
27 Intermediate System to Intermediate System..........................................498
IS-IS Protocol Overview...................................................................................................................498
IS-IS Addressing................................................................................................................................498
Multi-Topology IS-IS........................................................................................................................ 499
Transition Mode..........................................................................................................................500
Interface Support........................................................................................................................500
Adjacencies.................................................................................................................................500
Graceful Restart................................................................................................................................500
Timers.......................................................................................................................................... 501
Implementation Information............................................................................................................ 501
Configuration Information............................................................................................................... 502
Configuration Tasks for IS-IS......................................................................................................502
Configuring the Distance of a Route.......................................................................................... 511
Changing the IS-Type..................................................................................................................511
Redistributing IPv4 Routes..........................................................................................................514
Redistributing IPv6 Routes.......................................................................................................... 515
Configuring Authentication Passwords......................................................................................516
Setting the Overload Bit.............................................................................................................. 516
Debugging IS-IS...........................................................................................................................517
IS-IS Metric Styles..............................................................................................................................518
Configure Metric Values................................................................................................................... 518
Maximum Values in the Routing Table.......................................................................................519
Change the IS-IS Metric Style in One Level Only.......................................................................519
Leaks from One Level to Another...............................................................................................521
Sample Configurations......................................................................................................................521
28 Link Aggregation Control Protocol (LACP)...............................................524
Introduction to Dynamic LAGs and LACP....................................................................................... 524
Important Points to Remember................................................................................................. 524
LACP Modes................................................................................................................................ 525
Configuring LACP Commands................................................................................................... 525
LACP Configuration Tasks................................................................................................................526
Creating a LAG............................................................................................................................ 526
Configuring the LAG Interfaces as Dynamic..............................................................................527
Setting the LACP Long Timeout................................................................................................. 527
Monitoring and Debugging LACP.............................................................................................. 528
Shared LAG State Tracking............................................................................................................... 528
Configuring Shared LAG State Tracking.....................................................................................529
Important Points about Shared LAG State Tracking..................................................................530
LACP Basic Configuration Example..................................................................................................531
Configure a LAG on ALPHA.........................................................................................................531
29 Layer 2..............................................................................................................539
Manage the MAC Address Table...................................................................................................... 539
Clearing the MAC Address Table................................................................................................539
Setting the Aging Time for Dynamic Entries..............................................................................539
Configuring a Static MAC Address............................................................................................. 540
Displaying the MAC Address Table............................................................................................ 540
MAC Learning Limit.......................................................................................................................... 540
Setting the MAC Learning Limit.................................................................................................. 541
mac learning-limit Dynamic....................................................................................................... 541
mac learning-limit mac-address-sticky.....................................................................................542
mac learning-limit station-move............................................................................................... 542
mac learning-limit no-station-move.........................................................................................542
Learning Limit Violation Actions.................................................................................................543
Setting Station Move Violation Actions......................................................................................543
Recovering from Learning Limit and Station Move Violations..................................................544
NIC Teaming.....................................................................................................................................544
Configure Redundant Pairs.............................................................................................................. 546
Important Points about Configuring Redundant Pairs..............................................................548
Far-End Failure Detection................................................................................................................ 549
FEFD State Changes....................................................................................................................550
Configuring FEFD........................................................................................................................ 551
Enabling FEFD on an Interface................................................................................................... 552
Debugging FEFD......................................................................................................................... 553
30 Link Layer Discovery Protocol (LLDP)........................................................ 555
802.1AB (LLDP) Overview................................................................................................................. 555
Protocol Data Units.....................................................................................................................555
Optional TLVs....................................................................................................................................556
Management TLVs...................................................................................................................... 556
TIA-1057 (LLDP-MED) Overview......................................................................................................558
TIA Organizationally Specific TLVs.............................................................................................559
Configure LLDP.................................................................................................................................563
Related Configuration Tasks.......................................................................................................563
Important Points to Remember................................................................................................. 564
LLDP Compatibility..................................................................................................................... 564
CONFIGURATION versus INTERFACE Configurations....................................................................564
Enabling LLDP................................................................................................................................... 565
Disabling and Undoing LLDP......................................................................................................565
Enabling LLDP on Management Ports............................................................................................. 565
Disabling and Undoing LLDP on Management Ports................................................................565
Advertising TLVs................................................................................................................................566
Viewing the LLDP Configuration......................................................................................................567
Viewing Information Advertised by Adjacent LLDP Agents............................................................ 568
Configuring LLDPDU Intervals......................................................................................................... 569
Configuring Transmit and Receive Mode........................................................................................569
Configuring a Time to Live............................................................................................................... 570
Debugging LLDP................................................................................................................................571
Relevant Management Objects........................................................................................................ 572
31 Microsoft Network Load Balancing............................................................ 578
NLB Unicast Mode Scenario.............................................................................................................578
NLB Multicast Mode Scenario.......................................................................................................... 579
Limitations With Enabling NLB on Switches.................................................................................... 579
Benefits and Working of Microsoft Clustering.................................................................................579
Enable and Disable VLAN Flooding .................................................................................................580
Configuring a Switch for NLB ......................................................................................................... 580
.....................................................................................................................................................580
32 Multicast Source Discovery Protocol (MSDP)...........................................581
Protocol Overview............................................................................................................................ 581
Anycast RP.........................................................................................................................................583
Implementation Information............................................................................................................583
Configure Multicast Source Discovery Protocol............................................................................. 583
Related Configuration Tasks.......................................................................................................583
Enable MSDP.....................................................................................................................................587
Manage the Source-Active Cache...................................................................................................588
Viewing the Source-Active Cache............................................................................................. 588
Limiting the Source-Active Cache............................................................................................. 589
Clearing the Source-Active Cache.............................................................................................589
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