Dell Configuration Guide for the S4810
System
9.5(0.1)
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
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2014 - 07
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...............................................................................................................................40
Undoing Commands...........................................................................................................................41
Obtaining Help.................................................................................................................................... 42
Entering and Editing Commands....................................................................................................... 42
Command History...............................................................................................................................43
Filtering show Command Outputs.....................................................................................................43
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 S4810 and 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................................................ 61
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 ...................................................................................................... 66
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
Configuring Priority-Based Flow Control........................................................................................ 274
Configuring Lossless Queues..................................................................................................... 276
Configuring the PFC Buffer in a Switch Stack............................................................................277
Configure Enhanced Transmission Selection..................................................................................278
ETS Prerequisites and Restrictions............................................................................................. 278
Creating a QoS DCB Output Policy............................................................................................279
Creating an ETS Priority Group.................................................................................................. 280
Applying an ETS Output Policy for a Priority Group to an Interface.........................................281
ETS Operation with DCBx...........................................................................................................283
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 283
Applying DCB Policies in a Switch Stack......................................................................................... 284
Applying DCB Policies with an ETS Configuration..........................................................................284
Configure a DCBx Operation........................................................................................................... 285
DCBx Operation..........................................................................................................................285
DCBx Port Roles..........................................................................................................................285
DCB Configuration Exchange.................................................................................................... 287
Configuration Source Election...................................................................................................288
Propagation of DCB Information............................................................................................... 288
Auto-Detection and Manual Configuration of the DCBx Version............................................288
DCBx Example............................................................................................................................ 289
DCBx Prerequisites and Restrictions..........................................................................................290
Configuring DCBx.......................................................................................................................290
Verifying the DCB Configuration..................................................................................................... 294
PFC and ETS Configuration Examples............................................................................................. 305
Using PFC and ETS to Manage Data Center Traffic........................................................................ 305
PFC and ETS Configuration Command Examples.....................................................................307
Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................308
Hierarchical Scheduling in ETS Output Policies........................................................................308
Configuring DCB Maps and its Attributes........................................................................................309
DCB Map: Configuration Procedure..........................................................................................309
Important Points to Remember..................................................................................................310
Applying a DCB Map on a Port................................................................................................... 310
Configuring PFC without a DCB Map......................................................................................... 311
Configuring Lossless Queues..................................................................................................... 312
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................... 313
Pause and Resume of Traffic...................................................................................................... 313
Buffer Sizes for Lossless or PFC Packets.................................................................................... 313
Interworking of DCB Map With DCB Buffer Threshold Settings.....................................................314
Configuring the Dynamic Buffer Method.........................................................................................315
14 Dynamic Host Configuration Protocol (DHCP)........................................ 317
DHCP Packet Format and Options...................................................................................................317
Assign an IP Address using DHCP.................................................................................................... 319
Implementation Information............................................................................................................320
Configure the System to be a DHCP Server.................................................................................... 321
Configuring the Server for Automatic Address Allocation.........................................................321
Specifying a Default Gateway.....................................................................................................323
Configure a Method of Hostname Resolution...........................................................................323
Using DNS for Address Resolution............................................................................................. 323
Using NetBIOS WINS for Address Resolution............................................................................ 323
Creating Manual Binding Entries................................................................................................ 324
Debugging the DHCP Server......................................................................................................324
Using DHCP Clear Commands.................................................................................................. 324
Configure the System to be a Relay Agent......................................................................................325
Configure the System to be a DHCP Client.....................................................................................327
Configuring the DHCP Client System........................................................................................ 327
DHCP Client on a Management Interface................................................................................. 329
DHCP Client Operation with Other Features............................................................................ 329
Configure the System for User Port Stacking (Option 230)............................................................330
Configure Secure DHCP................................................................................................................... 331
Option 82.....................................................................................................................................331
DHCP Snooping.......................................................................................................................... 332
Drop DHCP Packets on Snooped VLANs Only..........................................................................334
Dynamic ARP Inspection............................................................................................................ 334
Configuring Dynamic ARP Inspection........................................................................................335
Source Address Validation................................................................................................................336
Enabling IP Source Address Validation.......................................................................................336
DHCP MAC Source Address Validation...................................................................................... 337
Enabling IP+MAC Source Address Validation............................................................................ 337
15 Equal Cost Multi-Path (ECMP)..................................................................... 339
ECMP for Flow-Based Affinity.......................................................................................................... 339
Configuring the Hash Algorithm................................................................................................ 339
Enabling Deterministic ECMP Next Hop....................................................................................339
Configuring the Hash Algorithm Seed.......................................................................................340
Link Bundle Monitoring.................................................................................................................... 340
Managing ECMP Group Paths.....................................................................................................341
Creating an ECMP Group Bundle...............................................................................................342
Modifying the ECMP Group Threshold......................................................................................342
16 FCoE Transit....................................................................................................344
Fibre Channel over Ethernet............................................................................................................ 344
Ensure Robustness in a Converged Ethernet Network...................................................................344
FIP Snooping on Ethernet Bridges...................................................................................................346
FIP Snooping in a Switch Stack........................................................................................................348
Using FIP Snooping...........................................................................................................................348
FIP Snooping Prerequisites.........................................................................................................348
Important Points to Remember................................................................................................. 349
Enabling the FCoE Transit Feature.............................................................................................349
Enable FIP Snooping on VLANs..................................................................................................350
Configure the FC-MAP Value.....................................................................................................350
Configure a Port for a Bridge-to-Bridge Link............................................................................350
Configure a Port for a Bridge-to-FCF Link................................................................................ 350
Impact on Other Software Features...........................................................................................350
FIP Snooping Restrictions........................................................................................................... 351
Configuring FIP Snooping...........................................................................................................351
Displaying FIP Snooping Information...............................................................................................352
FCoE Transit Configuration Example...............................................................................................358
17 Enabling FIPS Cryptography........................................................................ 360
Configuration Tasks..........................................................................................................................360
Preparing the System....................................................................................................................... 360
Enabling FIPS Mode...........................................................................................................................361
Generating Host-Keys.......................................................................................................................361
Monitoring FIPS Mode Status........................................................................................................... 362
Disabling FIPS Mode......................................................................................................................... 362
18 Force10 Resilient Ring Protocol (FRRP).....................................................364
Protocol Overview............................................................................................................................364
Ring Status...................................................................................................................................365
Multiple FRRP Rings.................................................................................................................... 366
Important FRRP Points................................................................................................................366
Important FRRP Concepts..........................................................................................................366
Implementing FRRP..........................................................................................................................368
FRRP Configuration.......................................................................................................................... 368
Creating the FRRP Group........................................................................................................... 368
Configuring the Control VLAN...................................................................................................369
Configuring and Adding the Member VLANs.............................................................................370
Setting the FRRP Timers.............................................................................................................. 371
Clearing the FRRP Counters....................................................................................................... 372
Viewing the FRRP Configuration................................................................................................ 372
Viewing the FRRP Information....................................................................................................372
Troubleshooting FRRP...................................................................................................................... 373
Configuration Checks................................................................................................................. 373
Sample Configuration and Topology...............................................................................................373
19 GARP VLAN Registration Protocol (GVRP)................................................ 375
Important Points to Remember........................................................................................................375
Configure GVRP................................................................................................................................376
Related Configuration Tasks.......................................................................................................376
Enabling GVRP Globally.................................................................................................................... 377
Enabling GVRP on a Layer 2 Interface..............................................................................................377
Configure GVRP Registration............................................................................................................377
Configure a GARP Timer...................................................................................................................378
RPM Redundancy..............................................................................................................................379
20 High Availability (HA).................................................................................... 380
Component Redundancy.................................................................................................................380
Automatic and Manual Stack Unit Failover................................................................................380
Synchronization between Management and Standby Units..................................................... 381
Forcing an Stack Unit Failover.................................................................................................... 381
Specifying an Auto-Failover Limit.............................................................................................. 382
Disabling Auto-Reboot............................................................................................................... 382
Manually Synchronizing Management and Standby Units........................................................382
Pre-Configuring a Stack Unit Slot....................................................................................................382
Removing a Provisioned Logical Stack Unit.................................................................................... 383
Hitless Behavior.................................................................................................................................383
Graceful Restart................................................................................................................................ 384
Software Resiliency...........................................................................................................................384
Software Component Health Monitoring..................................................................................384
System Health Monitoring..........................................................................................................384
Failure and Event Logging.......................................................................................................... 384
Hot-Lock Behavior........................................................................................................................... 385
21 Internet Group Management Protocol (IGMP).........................................386
IGMP Implementation Information..................................................................................................386
IGMP Protocol Overview..................................................................................................................386
IGMP Version 2........................................................................................................................... 386
IGMP Version 3........................................................................................................................... 388
Configure IGMP.................................................................................................................................391
Related Configuration Tasks.......................................................................................................391
Viewing IGMP Enabled Interfaces.................................................................................................... 392
Selecting an IGMP Version............................................................................................................... 392
Viewing IGMP Groups.......................................................................................................................393
Adjusting Timers............................................................................................................................... 393
Adjusting Query and Response Timers......................................................................................393
Adjusting the IGMP Querier Timeout Value...............................................................................394
Configuring a Static IGMP Group.................................................................................................... 394
Enabling IGMP Immediate-Leave.....................................................................................................395
IGMP Snooping................................................................................................................................. 395
IGMP Snooping Implementation Information........................................................................... 395
Configuring IGMP Snooping...................................................................................................... 395
Removing a Group-Port Association......................................................................................... 396
Disabling Multicast Flooding...................................................................................................... 396
Specifying a Port as Connected to a Multicast Router..............................................................397
Configuring the Switch as Querier.............................................................................................397
Fast Convergence after MSTP Topology Changes......................................................................... 398
Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................398
Protocol Separation....................................................................................................................399
Enabling and Disabling Management Egress Interface Selection............................................ 400
Handling of Management Route Configuration........................................................................ 401
Handling of Switch-Initiated Traffic........................................................................................... 401
Handling of Switch-Destined Traffic......................................................................................... 402
Handling of Transit Traffic (Traffic Separation)..........................................................................403
Mapping of Management Applications and Traffic Type.......................................................... 403
Behavior of Various Applications for Switch-Initiated Traffic ..................................................404
Behavior of Various Applications for Switch-Destined Traffic .................................................405
Interworking of EIS With Various Applications.......................................................................... 406
Designating a Multicast Router Interface........................................................................................ 407
22 Interfaces.........................................................................................................408
Basic Interface Configuration.......................................................................................................... 408
Advanced Interface Configuration.................................................................................................. 408
Interface Types................................................................................................................................. 409
View Basic Interface Information.....................................................................................................409
Enabling a Physical Interface............................................................................................................ 411
Physical Interfaces.............................................................................................................................411
Configuration Task List for Physical Interfaces..........................................................................412
Overview of Layer Modes........................................................................................................... 412
Configuring Layer 2 (Data Link) Mode........................................................................................412
Configuring Layer 2 (Interface) Mode........................................................................................ 413
Configuring Layer 3 (Network) Mode.........................................................................................413
Configuring Layer 3 (Interface) Mode........................................................................................ 414
Egress Interface Selection (EIS)........................................................................................................ 414
Important Points to Remember..................................................................................................415
Configuring EIS............................................................................................................................415
Management Interfaces.................................................................................................................... 415
Configuring Management Interfaces..........................................................................................415
Configuring Management Interfaces on the S-Series............................................................... 416
VLAN Interfaces................................................................................................................................. 417
Loopback Interfaces......................................................................................................................... 418
Null Interfaces................................................................................................................................... 418
Port Channel Interfaces....................................................................................................................418
Port Channel Definition and Standards......................................................................................419
Port Channel Benefits................................................................................................................. 419
Port Channel Implementation....................................................................................................419
10/100/1000 Mbps Interfaces in Port Channels....................................................................... 420
Configuration Tasks for Port Channel Interfaces......................................................................420
Creating a Port Channel.............................................................................................................420
Adding a Physical Interface to a Port Channel...........................................................................421
Reassigning an Interface to a New Port Channel......................................................................423
Configuring the Minimum Oper Up Links in a Port Channel....................................................424
.....................................................................................................................................................424
Assigning an IP Address to a Port Channel................................................................................425
Deleting or Disabling a Port Channel.........................................................................................425
Load Balancing Through Port Channels....................................................................................425
Load-Balancing on the S- Series................................................................................................425
Changing the Hash Algorithm....................................................................................................426
Bulk Configuration............................................................................................................................427
Interface Range........................................................................................................................... 427
Bulk Configuration Examples..................................................................................................... 428
Defining Interface Range Macros.................................................................................................... 429
Define the Interface Range........................................................................................................ 430
Choosing an Interface-Range Macro........................................................................................ 430
Monitoring and Maintaining Interfaces............................................................................................430
Maintenance Using TDR..............................................................................................................431
Splitting QSFP Ports to SFP+ Ports.................................................................................................. 432
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................ 433
Important Points to Remember................................................................................................. 433
Support for LM4 Optics.............................................................................................................. 434
Example Scenarios......................................................................................................................434
Link Dampening................................................................................................................................438
Important Points to Remember................................................................................................. 438
Enabling Link Dampening...........................................................................................................438
Link Bundle Monitoring....................................................................................................................440
Using Ethernet Pause Frames for Flow Control..............................................................................440
Threshold Settings.......................................................................................................................441
Enabling Pause Frames...............................................................................................................442
Configure the MTU Size on an Interface......................................................................................... 442
Port-Pipes......................................................................................................................................... 443
Auto-Negotiation on Ethernet Interfaces........................................................................................443
Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................... 444
Set Auto-Negotiation Options................................................................................................... 445
View Advanced Interface Information.............................................................................................446
Configuring the Interface Sampling Size................................................................................... 447
Dynamic Counters............................................................................................................................448
Clearing Interface Counters.......................................................................................................448
Enhanced Validation of Interface Ranges....................................................................................... 449
23 Internet Protocol Security (IPSec).............................................................. 450
Configuring IPSec .............................................................................................................................451
24 IPv4 Routing................................................................................................... 452
IP Addresses...................................................................................................................................... 452
Implementation Information...................................................................................................... 452
Configuration Tasks for IP Addresses.............................................................................................. 452
Assigning IP Addresses to an Interface............................................................................................ 453
Configuring Static Routes................................................................................................................ 454
Configure Static Routes for the Management Interface.................................................................455
IPv4 Path MTU Discovery Overview.................................................................................................456
Using the Configured Source IP Address in ICMP Messages..........................................................457
Configuring the ICMP Source Interface.....................................................................................457
Configuring the Duration to Establish a TCP Connection..............................................................457
Enabling Directed Broadcast............................................................................................................458
Resolution of Host Names............................................................................................................... 458
Enabling Dynamic Resolution of Host Names................................................................................ 458
Specifying the Local System Domain and a List of Domains..........................................................459
Configuring DNS with Traceroute................................................................................................... 459
ARP....................................................................................................................................................460
Configuration Tasks for ARP.............................................................................................................461
Configuring Static ARP Entries......................................................................................................... 461
Enabling Proxy ARP...........................................................................................................................462
Clearing ARP Cache..........................................................................................................................462
ARP Learning via Gratuitous ARP..................................................................................................... 462
Enabling ARP Learning via Gratuitous ARP......................................................................................463
ARP Learning via ARP Request......................................................................................................... 463
Configuring ARP Retries...................................................................................................................464
ICMP..................................................................................................................................................465
Configuration Tasks for ICMP.......................................................................................................... 465
Enabling ICMP Unreachable Messages............................................................................................465
UDP Helper....................................................................................................................................... 465
Configure UDP Helper................................................................................................................465
Important Points to Remember................................................................................................. 466
Enabling UDP Helper........................................................................................................................466
Configuring a Broadcast Address.................................................................................................... 466
Configurations Using UDP Helper................................................................................................... 467
UDP Helper with Broadcast-All Addresses...................................................................................... 467
UDP Helper with Subnet Broadcast Addresses............................................................................... 468
UDP Helper with Configured Broadcast Addresses........................................................................469
UDP Helper with No Configured Broadcast Addresses..................................................................469
Troubleshooting UDP Helper...........................................................................................................469
25 IPv6 Routing....................................................................................................471
Protocol Overview.............................................................................................................................471
Extended Address Space............................................................................................................. 471
Stateless Autoconfiguration........................................................................................................471
IPv6 Headers................................................................................................................................472
IPv6 Header Fields.......................................................................................................................473
Extension Header Fields..............................................................................................................474
Addressing................................................................................................................................... 475
Implementing IPv6 with Dell Networking OS..................................................................................477
ICMPv6.............................................................................................................................................. 479
Path MTU Discovery......................................................................................................................... 479
IPv6 Neighbor Discovery..................................................................................................................480
IPv6 Neighbor Discovery of MTU Packets................................................................................. 481
Configuration Task List for IPv6 RDNSS...........................................................................................481
Configuring the IPv6 Recursive DNS Server.............................................................................. 481
Debugging IPv6 RDNSS Information Sent to the Host ............................................................ 482
Displaying IPv6 RDNSS Information...........................................................................................483
Secure Shell (SSH) Over an IPv6 Transport..................................................................................... 484
Configuration Tasks for IPv6............................................................................................................484
Adjusting Your CAM-Profile....................................................................................................... 484
Assigning an IPv6 Address to an Interface.................................................................................485
Assigning a Static IPv6 Route..................................................................................................... 485
Configuring Telnet with IPv6..................................................................................................... 486
SNMP over IPv6.......................................................................................................................... 486
Showing IPv6 Information.......................................................................................................... 487
Showing an IPv6 Interface..........................................................................................................487
Showing IPv6 Routes..................................................................................................................488
Showing the Running-Configuration for an Interface..............................................................489
Clearing IPv6 Routes.................................................................................................................. 490
26 iSCSI Optimization.........................................................................................491
iSCSI Optimization Overview............................................................................................................491
Monitoring iSCSI Traffic Flows................................................................................................... 493
Application of Quality of Service to iSCSI Traffic Flows............................................................493
Information Monitored in iSCSI Traffic Flows............................................................................493
Detection and Auto-Configuration for Dell EqualLogic Arrays................................................494
Configuring Detection and Ports for Dell Compellent Arrays.................................................. 495
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................495
Enable and Disable iSCSI Optimization......................................................................................495
Default iSCSI Optimization Values...................................................................................................496
iSCSI Optimization Prerequisites......................................................................................................497
Configuring iSCSI Optimization....................................................................................................... 497
Displaying iSCSI Optimization Information..................................................................................... 499
27 Intermediate System to Intermediate System.......................................... 501
IS-IS Protocol Overview....................................................................................................................501
IS-IS Addressing................................................................................................................................ 501
Multi-Topology IS-IS........................................................................................................................ 502
Transition Mode.......................................................................................................................... 503
Interface Support........................................................................................................................ 503
Adjacencies................................................................................................................................. 503
Graceful Restart................................................................................................................................ 503
Timers..........................................................................................................................................504
Implementation Information............................................................................................................504
Configuration Information............................................................................................................... 505
Configuration Tasks for IS-IS......................................................................................................505
Configuring the Distance of a Route..........................................................................................514
Changing the IS-Type................................................................................................................. 514
Redistributing IPv4 Routes.......................................................................................................... 517
Redistributing IPv6 Routes..........................................................................................................518
Configuring Authentication Passwords......................................................................................519
Setting the Overload Bit.............................................................................................................. 519
Debugging IS-IS..........................................................................................................................520
IS-IS Metric Styles..............................................................................................................................521
Configure Metric Values....................................................................................................................521
Maximum Values in the Routing Table.......................................................................................522
Change the IS-IS Metric Style in One Level Only...................................................................... 522
Leaks from One Level to Another.............................................................................................. 524
Sample Configurations..................................................................................................................... 524
28 Link Aggregation Control Protocol (LACP)...............................................527
Introduction to Dynamic LAGs and LACP........................................................................................527
Important Points to Remember..................................................................................................527
LACP Modes................................................................................................................................528
Configuring LACP Commands...................................................................................................528
LACP Configuration Tasks................................................................................................................529
Creating a LAG............................................................................................................................ 529
Configuring the LAG Interfaces as Dynamic............................................................................. 530
Setting the LACP Long Timeout.................................................................................................530
Monitoring and Debugging LACP...............................................................................................531
Shared LAG State Tracking................................................................................................................531
Configuring Shared LAG State Tracking.....................................................................................532
Important Points about Shared LAG State Tracking..................................................................533
LACP Basic Configuration Example................................................................................................. 534
Configure a LAG on ALPHA........................................................................................................ 534
29 Layer 2..............................................................................................................542
Manage the MAC Address Table...................................................................................................... 542
Clearing the MAC Address Table................................................................................................542
Setting the Aging Time for Dynamic Entries..............................................................................542
Configuring a Static MAC Address............................................................................................. 543
Displaying the MAC Address Table.............................................................................................543
MAC Learning Limit...........................................................................................................................543
Setting the MAC Learning Limit..................................................................................................544
mac learning-limit Dynamic.......................................................................................................544
mac learning-limit mac-address-sticky.....................................................................................545
mac learning-limit station-move............................................................................................... 545
mac learning-limit no-station-move.........................................................................................545
Learning Limit Violation Actions.................................................................................................546
Setting Station Move Violation Actions......................................................................................546
Recovering from Learning Limit and Station Move Violations..................................................547
NIC Teaming..................................................................................................................................... 547
Configure Redundant Pairs.............................................................................................................. 548
Important Points about Configuring Redundant Pairs..............................................................550
Far-End Failure Detection.................................................................................................................551
FEFD State Changes....................................................................................................................552
Configuring FEFD........................................................................................................................ 553
Enabling FEFD on an Interface................................................................................................... 554
Debugging FEFD......................................................................................................................... 555
30 Link Layer Discovery Protocol (LLDP)........................................................ 557
802.1AB (LLDP) Overview................................................................................................................. 557
Protocol Data Units.....................................................................................................................557
Optional TLVs....................................................................................................................................558
Management TLVs...................................................................................................................... 558
TIA-1057 (LLDP-MED) Overview......................................................................................................560
TIA Organizationally Specific TLVs............................................................................................. 561
Configure LLDP.................................................................................................................................565
Related Configuration Tasks.......................................................................................................565
Important Points to Remember................................................................................................. 566
LLDP Compatibility..................................................................................................................... 566
CONFIGURATION versus INTERFACE Configurations....................................................................566
Enabling LLDP................................................................................................................................... 567
Disabling and Undoing LLDP......................................................................................................567
Enabling LLDP on Management Ports............................................................................................. 567
Disabling and Undoing LLDP on Management Ports................................................................ 567
Advertising TLVs................................................................................................................................568
Viewing the LLDP Configuration......................................................................................................569
Viewing Information Advertised by Adjacent LLDP Agents.............................................................570
Configuring LLDPDU Intervals.......................................................................................................... 571
Configuring Transmit and Receive Mode.........................................................................................571
Configuring a Time to Live............................................................................................................... 572
Debugging LLDP............................................................................................................................... 573
Relevant Management Objects........................................................................................................ 574
31 Microsoft Network Load Balancing............................................................580
NLB Unicast Mode Scenario.............................................................................................................580
NLB Multicast Mode Scenario...........................................................................................................581
Limitations With Enabling NLB on Switches.................................................................................... 581
Benefits and Working of Microsoft Clustering.................................................................................581
Enable and Disable VLAN Flooding .................................................................................................582
Configuring a Switch for NLB ..........................................................................................................582
..................................................................................................................................................... 582
32 Multicast Source Discovery Protocol (MSDP)...........................................583
Protocol Overview............................................................................................................................583
Anycast RP.........................................................................................................................................585
Implementation Information............................................................................................................585
Configure Multicast Source Discovery Protocol............................................................................. 585
Related Configuration Tasks.......................................................................................................585
Enable MSDP.....................................................................................................................................589
Manage the Source-Active Cache...................................................................................................590
Viewing the Source-Active Cache............................................................................................. 590
Limiting the Source-Active Cache..............................................................................................591
Clearing the Source-Active Cache............................................................................................. 591
Enabling the Rejected Source-Active Cache............................................................................. 591
Accept Source-Active Messages that Fail the RFP Check...............................................................591
Specifying Source-Active Messages................................................................................................ 595
Limiting the Source-Active Messages from a Peer......................................................................... 596
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