Dell PowerSwitch S4810P User guide

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Dell Conguration Guide for the S4810 System
9.8(0.0)
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright, 2009 – 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws.
Dell
and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may
be trademarks of their respective companies.
2015 - 05
Rev. A00
Contents
1 About this Guide............................................................................................................ 33
Audience.......................................................................................................................................................................... 33
Conventions..................................................................................................................................................................... 33
Related Documents.......................................................................................................................................................... 33
2 Conguration Fundamentals..........................................................................................34
Accessing the Command Line.......................................................................................................................................... 34
CLI Modes........................................................................................................................................................................34
Navigating CLI Modes................................................................................................................................................ 36
The do Command.............................................................................................................................................................38
Undoing Commands.........................................................................................................................................................39
Obtaining Help..................................................................................................................................................................40
Entering and Editing Commands...................................................................................................................................... 40
Command History............................................................................................................................................................. 41
Filtering show Command Outputs.....................................................................................................................................41
Multiple Users in Conguration Mode...............................................................................................................................42
3 Getting Started............................................................................................................. 44
Console Access................................................................................................................................................................ 44
Serial Console.............................................................................................................................................................44
Accessing the CLI Interface and Running Scripts Using SSH........................................................................................... 45
Entering CLI commands Using an SSH Connection....................................................................................................45
Executing Local CLI Scripts Using an SSH Connection.............................................................................................. 45
Default Conguration....................................................................................................................................................... 46
Conguring a Host Name.................................................................................................................................................46
Accessing the System Remotely...................................................................................................................................... 46
Accessing the System Remotely................................................................................................................................ 46
Congure the Management Port IP Address.............................................................................................................. 47
Congure a Management Route.................................................................................................................................47
Conguring a Username and Password...................................................................................................................... 47
Conguring the Enable Password..................................................................................................................................... 47
Conguration File Management........................................................................................................................................48
Copy Files to and from the System.............................................................................................................................48
Mounting an NFS File System.................................................................................................................................... 49
Save the Running-Conguration................................................................................................................................ 50
Congure the Overload Bit for a Startup Scenario......................................................................................................51
Viewing Files............................................................................................................................................................... 51
Compressing Conguration Files................................................................................................................................ 52
Managing the File System................................................................................................................................................ 54
Enabling Software Features on Devices Using a Command Option..................................................................................55
View Command History....................................................................................................................................................56
Upgrading Dell Networking OS.........................................................................................................................................56
3
Using Hashes to Validate Software Images...................................................................................................................... 56
Using HTTP for File Transfers...........................................................................................................................................57
4 Management.................................................................................................................59
Conguring Privilege Levels............................................................................................................................................. 59
Creating a Custom Privilege Level..............................................................................................................................59
Removing a Command from EXEC Mode.................................................................................................................. 59
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................................................59
Allowing Access to CONFIGURATION Mode Commands...........................................................................................59
Allowing Access to the Following Modes....................................................................................................................60
Applying a Privilege Level to a Username.................................................................................................................... 61
Applying a Privilege Level to a Terminal Line............................................................................................................... 62
Conguring Logging......................................................................................................................................................... 62
Audit and Security Logs............................................................................................................................................. 62
Conguring Logging Format .....................................................................................................................................64
Display the Logging Buer and the Logging Conguration......................................................................................... 64
Setting Up a Secure Connection to a Syslog Server...................................................................................................65
Sending System Messages to a Syslog Server........................................................................................................... 66
Track Login Activity.......................................................................................................................................................... 66
Restrictions for Tracking Login Activity...................................................................................................................... 66
Conguring Login Activity Tracking............................................................................................................................ 66
Display Login Statistics............................................................................................................................................... 67
Limit Concurrent Login Sessions...................................................................................................................................... 68
Restrictions for Limiting the Number of Concurrent Sessions.................................................................................... 68
Conguring Concurrent Session Limit........................................................................................................................ 68
Enabling the System to Clear Existing Sessions......................................................................................................... 68
Log Messages in the Internal Buer................................................................................................................................. 69
Conguration Task List for System Log Management................................................................................................ 69
Disabling System Logging.................................................................................................................................................69
Sending System Messages to a Syslog Server................................................................................................................. 70
Conguring a UNIX System as a Syslog Server.......................................................................................................... 70
Changing System Logging Settings..................................................................................................................................70
Display the Logging Buer and the Logging Conguration................................................................................................ 71
Conguring a UNIX Logging Facility Level........................................................................................................................ 72
Synchronizing Log Messages............................................................................................................................................73
Enabling Timestamp on Syslog Messages.........................................................................................................................73
File Transfer Services........................................................................................................................................................74
Conguration Task List for File Transfer Services........................................................................................................74
Enabling the FTP Server.............................................................................................................................................74
Conguring FTP Server Parameters........................................................................................................................... 74
Conguring FTP Client Parameters............................................................................................................................ 75
Terminal Lines...................................................................................................................................................................75
Denying and Permitting Access to a Terminal Line......................................................................................................75
Conguring Login Authentication for Terminal Lines................................................................................................... 77
Setting Time Out of EXEC Privilege Mode....................................................................................................................... 77
Using Telnet to get to Another Network Device............................................................................................................... 78
4
Lock CONFIGURATION Mode..........................................................................................................................................79
Viewing the Conguration Lock Status.......................................................................................................................79
Recovering from a Forgotten Password........................................................................................................................... 79
Recovering from a Forgotten Enable Password..........................................................................................................80
Recovering from a Failed Start..........................................................................................................................................81
Restoring the Factory Default Settings............................................................................................................................. 81
Important Points to Remember.................................................................................................................................. 82
Restoring Factory Default Environment Variables.......................................................................................................82
5 802.1ag..........................................................................................................................84
Ethernet CFM.................................................................................................................................................................. 84
Maintenance Domains......................................................................................................................................................85
Maintenance Points..........................................................................................................................................................85
Maintenance End Points...................................................................................................................................................86
Implementation Information..............................................................................................................................................86
Conguring the CFM........................................................................................................................................................87
Related Conguration Tasks........................................................................................................................................87
Enabling Ethernet CFM.................................................................................................................................................... 87
Creating a Maintenance Domain.......................................................................................................................................87
Creating a Maintenance Association.................................................................................................................................88
Create Maintenance Points.............................................................................................................................................. 88
Creating a Maintenance End Point............................................................................................................................. 88
Creating a Maintenance Intermediate Point................................................................................................................89
Displaying the MP Databases..................................................................................................................................... 89
Continuity Check Messages.............................................................................................................................................90
Enabling CCM.............................................................................................................................................................91
Enabling Cross-Checking............................................................................................................................................ 91
Sending Loopback Messages and Responses................................................................................................................... 91
Sending Linktrace Messages and Responses................................................................................................................... 92
Caching Link Trace..................................................................................................................................................... 92
Enabling CFM SNMP Traps..............................................................................................................................................93
Displaying Ethernet CFM Statistics.................................................................................................................................. 94
6 802.1X........................................................................................................................... 96
The Port-Authentication Process..................................................................................................................................... 97
EAP over RADIUS...................................................................................................................................................... 98
Conguring 802.1X........................................................................................................................................................... 99
Related Conguration Tasks....................................................................................................................................... 99
Important Points to Remember........................................................................................................................................ 99
Enabling 802.1X...............................................................................................................................................................100
Conguring Request Identity Re-Transmissions............................................................................................................... 101
Conguring a Quiet Period after a Failed Authentication...........................................................................................102
Forcibly Authorizing or Unauthorizing a Port...................................................................................................................103
Re-Authenticating a Port................................................................................................................................................ 103
Conguring Timeouts......................................................................................................................................................104
Conguring Dynamic VLAN Assignment with Port Authentication................................................................................. 105
5
Guest and Authentication-Fail VLANs.............................................................................................................................106
Conguring a Guest VLAN........................................................................................................................................107
Conguring an Authentication-Fail VLAN..................................................................................................................107
7 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 109
Optimizing CAM Utilization During the Attachment of ACLs to VLANs.......................................................................... 109
Guidelines for Conguring ACL VLAN Groups................................................................................................................. 110
Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...........................................................110
Conguring ACL VLAN Groups..................................................................................................................................110
Conguring FP Blocks for VLAN Parameters............................................................................................................. 111
Viewing CAM Usage........................................................................................................................................................112
Allocating FP Blocks for VLAN Processes........................................................................................................................113
8 Access Control Lists (ACLs)......................................................................................... 114
IP Access Control Lists (ACLs)........................................................................................................................................ 115
CAM Usage............................................................................................................................................................... 115
Implementing ACLs on Dell Networking OS............................................................................................................... 116
Important Points to Remember........................................................................................................................................117
Conguration Task List for Route Maps..................................................................................................................... 117
Conguring Match Routes........................................................................................................................................120
Conguring Set Conditions........................................................................................................................................121
Congure a Route Map for Route Redistribution...................................................................................................... 122
Congure a Route Map for Route Tagging................................................................................................................122
Continue Clause........................................................................................................................................................123
IP Fragment Handling......................................................................................................................................................123
IP Fragments ACL Examples.....................................................................................................................................123
Layer 4 ACL Rules Examples.....................................................................................................................................124
Congure a Standard IP ACL.......................................................................................................................................... 124
Conguring a Standard IP ACL Filter.........................................................................................................................125
Congure an Extended IP ACL........................................................................................................................................126
Conguring Filters with a Sequence Number............................................................................................................126
Conguring Filters Without a Sequence Number...................................................................................................... 128
Congure Layer 2 and Layer 3 ACLs............................................................................................................................... 128
Assign an IP ACL to an Interface.....................................................................................................................................129
Applying an IP ACL......................................................................................................................................................... 129
Counting ACL Hits.................................................................................................................................................... 130
Congure Ingress ACLs...................................................................................................................................................130
Congure Egress ACLs.................................................................................................................................................... 131
Applying Egress Layer 3 ACLs (Control-Plane)..........................................................................................................132
IP Prex Lists..................................................................................................................................................................132
Implementation Information...................................................................................................................................... 133
Conguration Task List for Prex Lists......................................................................................................................133
ACL Resequencing..........................................................................................................................................................136
Resequencing an ACL or Prex List.......................................................................................................................... 137
Route Maps.................................................................................................................................................................... 138
Implementation Information...................................................................................................................................... 138
6
Logging of ACL Processes.............................................................................................................................................. 138
Guidelines for Conguring ACL Logging....................................................................................................................139
Conguring ACL Logging.......................................................................................................................................... 140
Flow-Based Monitoring Support for ACLs...................................................................................................................... 140
Behavior of Flow-Based Monitoring...........................................................................................................................141
Enabling Flow-Based Monitoring...............................................................................................................................142
9 Bidirectional Forwarding Detection (BFD)....................................................................144
How BFD Works............................................................................................................................................................. 144
BFD Packet Format.................................................................................................................................................. 145
BFD Sessions............................................................................................................................................................146
BFD Three-Way Handshake...................................................................................................................................... 147
Session State Changes............................................................................................................................................. 149
Important Points to Remember.......................................................................................................................................149
Congure BFD................................................................................................................................................................ 149
Congure BFD for Physical Ports............................................................................................................................. 150
Congure BFD for Static Routes...............................................................................................................................153
Congure BFD for OSPF.......................................................................................................................................... 154
Congure BFD for OSPFv3.......................................................................................................................................157
Congure BFD for IS-IS............................................................................................................................................ 158
Congure BFD for BGP............................................................................................................................................ 160
Congure BFD for VRRP.......................................................................................................................................... 167
Conguring Protocol Liveness.................................................................................................................................. 169
Troubleshooting BFD.................................................................................................................................................169
10 Border Gateway Protocol IPv4 (BGPv4)..................................................................... 171
Autonomous Systems (AS)..............................................................................................................................................171
Sessions and Peers......................................................................................................................................................... 173
Establish a Session....................................................................................................................................................173
Route Reectors............................................................................................................................................................. 174
BGP Attributes................................................................................................................................................................175
Best Path Selection Criteria...................................................................................................................................... 175
Weight.......................................................................................................................................................................177
Local Preference....................................................................................................................................................... 177
Multi-Exit Discriminators (MEDs)..............................................................................................................................178
Origin........................................................................................................................................................................ 179
AS Path.....................................................................................................................................................................179
Next Hop..................................................................................................................................................................180
Multiprotocol BGP.......................................................................................................................................................... 180
Implement BGP with Dell Networking OS........................................................................................................................181
Additional Path (Add-Path) Support.......................................................................................................................... 181
Advertise IGP Cost as MED for Redistributed Routes............................................................................................... 181
Ignore Router-ID for Some Best-Path Calculations................................................................................................... 182
Four-Byte AS Numbers.............................................................................................................................................182
AS4 Number Representation.....................................................................................................................................182
AS Number Migration............................................................................................................................................... 184
7
BGP4 Management Information Base (MIB)............................................................................................................ 185
Important Points to Remember.................................................................................................................................185
Conguration Information............................................................................................................................................... 186
BGP Conguration..........................................................................................................................................................186
Enabling BGP............................................................................................................................................................ 187
Conguring AS4 Number Representations................................................................................................................190
Conguring Peer Groups...........................................................................................................................................192
Conguring BGP Fast Fall-Over................................................................................................................................194
Conguring Passive Peering..................................................................................................................................... 196
Maintaining Existing AS Numbers During an AS Migration........................................................................................ 196
Allowing an AS Number to Appear in its Own AS Path..............................................................................................197
Enabling Graceful Restart......................................................................................................................................... 198
Enabling Neighbor Graceful Restart..........................................................................................................................199
Filtering on an AS-Path Attribute..............................................................................................................................199
Regular Expressions as Filters................................................................................................................................... 201
Redistributing Routes...............................................................................................................................................202
Enabling Additional Paths......................................................................................................................................... 203
Conguring IP Community Lists............................................................................................................................... 203
Conguring an IP Extended Community List............................................................................................................204
Filtering Routes with Community Lists.....................................................................................................................205
Manipulating the COMMUNITY Attribute................................................................................................................ 205
Changing MED Attributes.........................................................................................................................................207
Changing the LOCAL_PREFERENCE Attribute....................................................................................................... 207
Changing the NEXT_HOP Attribute.........................................................................................................................208
Changing the WEIGHT Attribute..............................................................................................................................208
Enabling Multipath................................................................................................................................................... 209
Filtering BGP Routes................................................................................................................................................209
Filtering BGP Routes Using Route Maps...................................................................................................................210
Filtering BGP Routes Using AS-PATH Information.....................................................................................................211
Conguring BGP Route Reectors............................................................................................................................ 211
Aggregating Routes.................................................................................................................................................. 212
Conguring BGP Confederations.............................................................................................................................. 212
Enabling Route Flap Dampening................................................................................................................................213
Changing BGP Timers...............................................................................................................................................215
Enabling BGP Neighbor Soft-Reconguration...........................................................................................................216
Route Map Continue.................................................................................................................................................217
Enabling MBGP Congurations.......................................................................................................................................217
BGP Regular Expression Optimization.............................................................................................................................218
Debugging BGP.............................................................................................................................................................. 218
Storing Last and Bad PDUs.......................................................................................................................................219
Capturing PDUs....................................................................................................................................................... 220
PDU Counters...........................................................................................................................................................221
Sample Congurations....................................................................................................................................................221
11 Content Addressable Memory (CAM).........................................................................228
CAM Allocation.............................................................................................................................................................. 228
8
Test CAM Usage............................................................................................................................................................ 230
View CAM-ACL Settings................................................................................................................................................230
View CAM Usage........................................................................................................................................................... 232
CAM Optimization..........................................................................................................................................................232
Troubleshoot CAM Proling............................................................................................................................................232
CAM Prole Mismatches..........................................................................................................................................232
QoS CAM Region Limitation.....................................................................................................................................233
12 Control Plane Policing (CoPP)................................................................................... 234
Congure Control Plane Policing.................................................................................................................................... 235
Conguring CoPP for Protocols............................................................................................................................... 236
Conguring CoPP for CPU Queues..........................................................................................................................237
CoPP for OSPFv3 Packets.......................................................................................................................................238
Conguring CoPP for OSPFv3..................................................................................................................................241
Show Commands.....................................................................................................................................................242
13 Data Center Bridging (DCB)...................................................................................... 244
Ethernet Enhancements in Data Center Bridging........................................................................................................... 244
Priority-Based Flow Control..................................................................................................................................... 245
Enhanced Transmission Selection.............................................................................................................................246
Data Center Bridging Exchange Protocol (DCBx).....................................................................................................247
Data Center Bridging in a Trac Flow.......................................................................................................................247
Enabling Data Center Bridging........................................................................................................................................247
DCB Maps and its Attributes....................................................................................................................................248
QoS dot1p Trac Classication and Queue Assignment.................................................................................................249
Data Center Bridging: Default Conguration.................................................................................................................. 250
Conguring Priority-Based Flow Control........................................................................................................................ 250
Conguring Lossless Queues.................................................................................................................................... 251
Conguring PFC in a DCB Map......................................................................................................................................252
PFC Conguration Notes......................................................................................................................................... 252
PFC Prerequisites and Restrictions.......................................................................................................................... 253
Applying a DCB Map on a Port.......................................................................................................................................254
Priority-Based Flow Control Using Dynamic Buer Method...........................................................................................254
Pause and Resume of Trac....................................................................................................................................254
Buer Sizes for Lossless or PFC Packets.................................................................................................................255
Conguring PFC without a DCB Map............................................................................................................................ 255
Conguring Lossless QueuesExample:..................................................................................................................... 256
Behavior of Tagged Packets...........................................................................................................................................257
Conguration Example for DSCP and PFC Priorities...................................................................................................... 257
Using PFC to Manage Converged Ethernet Trac........................................................................................................ 258
Congure Enhanced Transmission Selection.................................................................................................................. 258
ETS Prerequisites and Restrictions...........................................................................................................................259
Creating an ETS Priority Group................................................................................................................................ 259
ETS Operation with DCBx........................................................................................................................................260
Conguring Bandwidth Allocation for DCBx CIN......................................................................................................260
Conguring ETS in a DCB Map.................................................................................................................................261
9
Hierarchical Scheduling in ETS Output Policies........................................................................................................ 262
Using ETS to Manage Converged Ethernet Trac...................................................................................................263
Applying DCB Policies in a Switch Stack........................................................................................................................ 263
Congure a DCBx Operation..........................................................................................................................................263
DCBx Operation....................................................................................................................................................... 263
DCBx Port Roles...................................................................................................................................................... 264
DCB Conguration Exchange...................................................................................................................................265
Conguration Source Election..................................................................................................................................265
Propagation of DCB Information.............................................................................................................................. 266
Auto-Detection and Manual Conguration of the DCBx Version.............................................................................. 266
DCBx Example..........................................................................................................................................................267
DCBx Prerequisites and Restrictions........................................................................................................................ 267
Conguring DCBx.....................................................................................................................................................267
Verifying the DCB Conguration..................................................................................................................................... 271
QoS dot1p Trac Classication and Queue Assignment.................................................................................................280
Conguring the Dynamic Buer Method.........................................................................................................................281
Sample DCB Conguration.............................................................................................................................................282
PFC and ETS Conguration Command Examples.................................................................................................... 284
14 Dynamic Host Conguration Protocol (DHCP).......................................................... 285
DHCP Packet Format and Options.................................................................................................................................285
Assign an IP Address using DHCP.................................................................................................................................. 287
Implementation Information............................................................................................................................................287
Congure the System to be a DHCP Server.................................................................................................................. 288
Conguring the Server for Automatic Address Allocation.........................................................................................288
Specifying a Default Gateway.................................................................................................................................. 290
Congure a Method of Hostname Resolution.......................................................................................................... 290
Using DNS for Address Resolution...........................................................................................................................290
Using NetBIOS WINS for Address Resolution.......................................................................................................... 290
Creating Manual Binding Entries.............................................................................................................................. 290
Debugging the DHCP Server....................................................................................................................................291
Using DHCP Clear Commands..................................................................................................................................291
Congure the System to be a Relay Agent......................................................................................................................291
Congure the System to be a DHCP Client....................................................................................................................293
Conguring the DHCP Client System.......................................................................................................................293
DHCP Client on a Management Interface................................................................................................................ 294
DHCP Client Operation with Other Features............................................................................................................295
Congure the System for User Port Stacking (Option 230)...........................................................................................296
Congure Secure DHCP................................................................................................................................................ 296
Option 82.................................................................................................................................................................296
DHCP Snooping....................................................................................................................................................... 297
Drop DHCP Packets on Snooped VLANs Only.........................................................................................................300
Dynamic ARP Inspection..........................................................................................................................................300
Conguring Dynamic ARP Inspection........................................................................................................................301
Source Address Validation..............................................................................................................................................302
Enabling IP Source Address Validation......................................................................................................................302
10
DHCP MAC Source Address Validation.................................................................................................................... 303
Enabling IP+MAC Source Address Validation............................................................................................................303
Viewing the Number of SAV Dropped Packets.........................................................................................................304
Clearing the Number of SAV Dropped Packets........................................................................................................ 304
15 Equal Cost Multi-Path (ECMP)................................................................................. 305
Conguring the Hash Algorithm.....................................................................................................................................305
Enabling Deterministic ECMP Next Hop........................................................................................................................ 305
Conguring the Hash Algorithm Seed............................................................................................................................305
Link Bundle Monitoring.................................................................................................................................................. 306
Managing ECMP Group Paths................................................................................................................................. 306
Creating an ECMP Group Bundle............................................................................................................................. 307
Modifying the ECMP Group Threshold.....................................................................................................................307
16 FCoE Transit..............................................................................................................309
Fibre Channel over Ethernet.......................................................................................................................................... 309
Ensure Robustness in a Converged Ethernet Network.................................................................................................. 309
FIP Snooping on Ethernet Bridges..................................................................................................................................310
FIP Snooping in a Switch Stack...................................................................................................................................... 312
Using FIP Snooping.........................................................................................................................................................312
FIP Snooping Prerequisites....................................................................................................................................... 312
Important Points to Remember.................................................................................................................................313
Enabling the FCoE Transit Feature............................................................................................................................313
Enable FIP Snooping on VLANs................................................................................................................................ 314
Congure the FC-MAP Value....................................................................................................................................314
Congure a Port for a Bridge-to-Bridge Link.............................................................................................................314
Congure a Port for a Bridge-to-FCF Link................................................................................................................ 314
Impact on Other Software Features..........................................................................................................................314
FIP Snooping Restrictions.........................................................................................................................................315
Conguring FIP Snooping......................................................................................................................................... 315
Displaying FIP Snooping Information............................................................................................................................... 316
FCoE Transit Conguration Example...............................................................................................................................321
17 FIPS Cryptography.................................................................................................... 323
Conguration Tasks........................................................................................................................................................323
Preparing the System.....................................................................................................................................................323
Enabling FIPS Mode.......................................................................................................................................................323
Generating Host-Keys.................................................................................................................................................... 324
Monitoring FIPS Mode Status........................................................................................................................................ 324
Disabling FIPS Mode...................................................................................................................................................... 325
18 Force10 Resilient Ring Protocol (FRRP).....................................................................326
Protocol Overview......................................................................................................................................................... 326
Ring Status.............................................................................................................................................................. 326
Multiple FRRP Rings.................................................................................................................................................327
Important FRRP Points.............................................................................................................................................327
11
Important FRRP Concepts.......................................................................................................................................328
Implementing FRRP....................................................................................................................................................... 329
FRRP Conguration....................................................................................................................................................... 329
Creating the FRRP Group........................................................................................................................................ 329
Conguring the Control VLAN................................................................................................................................. 330
Conguring and Adding the Member VLANs............................................................................................................ 331
Setting the FRRP Timers......................................................................................................................................... 332
Clearing the FRRP Counters.................................................................................................................................... 332
Viewing the FRRP Conguration..............................................................................................................................332
Viewing the FRRP Information................................................................................................................................. 332
Troubleshooting FRRP....................................................................................................................................................333
Conguration Checks...............................................................................................................................................333
Sample Conguration and Topology............................................................................................................................... 333
19 GARP VLAN Registration Protocol (GVRP)............................................................... 335
Important Points to Remember......................................................................................................................................335
Congure GVRP............................................................................................................................................................ 335
Related Conguration Tasks..................................................................................................................................... 336
Enabling GVRP Globally................................................................................................................................................. 336
Enabling GVRP on a Layer 2 Interface............................................................................................................................337
Congure GVRP Registration.........................................................................................................................................337
Congure a GARP Timer................................................................................................................................................338
RPM Redundancy.......................................................................................................................................................... 338
20 High Availability (HA)................................................................................................ 339
Component Redundancy................................................................................................................................................339
Automatic and Manual Stack Unit Failover...............................................................................................................339
Synchronization between Management and Standby Units..................................................................................... 340
Forcing an Stack Unit Failover..................................................................................................................................340
Specifying an Auto-Failover Limit.............................................................................................................................340
Disabling Auto-Reboot.............................................................................................................................................. 341
Manually Synchronizing Management and Standby Units.........................................................................................341
Pre-Conguring a Stack Unit Slot...................................................................................................................................341
Removing a Provisioned Logical Stack Unit....................................................................................................................342
Hitless Behavior............................................................................................................................................................. 342
Graceful Restart.............................................................................................................................................................342
Software Resiliency........................................................................................................................................................343
Software Component Health Monitoring..................................................................................................................343
System Health Monitoring........................................................................................................................................343
Failure and Event Logging........................................................................................................................................ 343
Hot-Lock Behavior......................................................................................................................................................... 344
21 Internet Group Management Protocol (IGMP)...........................................................345
IGMP Implementation Information..................................................................................................................................345
IGMP Protocol Overview............................................................................................................................................... 345
IGMP Version 2........................................................................................................................................................345
12
IGMP Version 3........................................................................................................................................................ 346
Congure IGMP............................................................................................................................................................. 349
Related Conguration Tasks..................................................................................................................................... 349
Viewing IGMP Enabled Interfaces.................................................................................................................................. 350
Selecting an IGMP Version.............................................................................................................................................350
Viewing IGMP Groups....................................................................................................................................................350
Adjusting Timers............................................................................................................................................................. 351
Adjusting Query and Response Timers......................................................................................................................351
Preventing a Host from Joining a Group.........................................................................................................................352
Enabling IGMP Immediate-Leave................................................................................................................................... 354
IGMP Snooping..............................................................................................................................................................355
IGMP Snooping Implementation Information............................................................................................................355
Conguring IGMP Snooping.....................................................................................................................................355
Removing a Group-Port Association........................................................................................................................ 356
Disabling Multicast Flooding.....................................................................................................................................356
Specifying a Port as Connected to a Multicast Router.............................................................................................356
Conguring the Switch as Querier........................................................................................................................... 356
Fast Convergence after MSTP Topology Changes......................................................................................................... 357
Egress Interface Selection (EIS) for HTTP and IGMP Applications.................................................................................357
Protocol Separation..................................................................................................................................................358
Enabling and Disabling Management Egress Interface Selection.............................................................................. 359
Handling of Management Route Conguration........................................................................................................ 359
Handling of Switch-Initiated Trac.......................................................................................................................... 360
Handling of Switch-Destined Trac.........................................................................................................................360
Handling of Transit Trac (Trac Separation).......................................................................................................... 361
Mapping of Management Applications and Trac Type............................................................................................ 361
Behavior of Various Applications for Switch-Initiated Trac ....................................................................................362
Behavior of Various Applications for Switch-Destined Trac .................................................................................. 363
Interworking of EIS With Various Applications..........................................................................................................364
Designating a Multicast Router Interface....................................................................................................................... 364
22 Interfaces..................................................................................................................365
Basic Interface Conguration.........................................................................................................................................365
Advanced Interface Conguration..................................................................................................................................365
Interface Types.............................................................................................................................................................. 365
View Basic Interface Information....................................................................................................................................366
Enabling a Physical Interface.......................................................................................................................................... 367
Physical Interfaces......................................................................................................................................................... 368
Conguration Task List for Physical Interfaces......................................................................................................... 368
Overview of Layer Modes........................................................................................................................................ 368
Conguring Layer 2 (Data Link) Mode..................................................................................................................... 369
Conguring Layer 2 (Interface) Mode...................................................................................................................... 369
Conguring Layer 3 (Network) Mode...................................................................................................................... 369
Conguring Layer 3 (Interface) Mode...................................................................................................................... 370
Egress Interface Selection (EIS)......................................................................................................................................371
Important Points to Remember.................................................................................................................................371
13
Conguring EIS......................................................................................................................................................... 371
Management Interfaces.................................................................................................................................................. 371
Conguring Management Interfaces.........................................................................................................................371
Conguring Management Interfaces on the S-Series............................................................................................... 373
VLAN Interfaces............................................................................................................................................................. 374
Loopback Interfaces....................................................................................................................................................... 374
Null Interfaces................................................................................................................................................................ 375
Port Channel Interfaces..................................................................................................................................................375
Port Channel Denition and Standards.....................................................................................................................375
Port Channel Benets.............................................................................................................................................. 375
Port Channel Implementation................................................................................................................................... 375
10/100/1000 Mbps Interfaces in Port Channels....................................................................................................... 376
Conguration Tasks for Port Channel Interfaces.......................................................................................................376
Creating a Port Channel........................................................................................................................................... 377
Adding a Physical Interface to a Port Channel.......................................................................................................... 377
Reassigning an Interface to a New Port Channel......................................................................................................379
Conguring the Minimum Oper Up Links in a Port Channel......................................................................................379
................................................................................................................................................................................ 380
Assigning an IP Address to a Port Channel...............................................................................................................380
Deleting or Disabling a Port Channel......................................................................................................................... 381
Load Balancing Through Port Channels.................................................................................................................... 381
Load-Balancing Method............................................................................................................................................381
Changing the Hash Algorithm.................................................................................................................................. 382
Bulk Conguration..........................................................................................................................................................383
Interface Range........................................................................................................................................................383
Bulk Conguration Examples....................................................................................................................................383
Dening Interface Range Macros................................................................................................................................... 384
Dene the Interface Range...................................................................................................................................... 385
Choosing an Interface-Range Macro........................................................................................................................385
Monitoring and Maintaining Interfaces........................................................................................................................... 385
Maintenance Using TDR.......................................................................................................................................... 386
Splitting QSFP Ports to SFP+ Ports...............................................................................................................................387
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..........................................................................................387
Important Points to Remember................................................................................................................................388
Example Scenarios...................................................................................................................................................388
Link Dampening..............................................................................................................................................................392
Important Points to Remember................................................................................................................................392
Enabling Link Dampening......................................................................................................................................... 392
Link Bundle Monitoring...................................................................................................................................................393
Using Ethernet Pause Frames for Flow Control..............................................................................................................394
Enabling Pause Frames............................................................................................................................................ 395
Congure the MTU Size on an Interface........................................................................................................................395
Port-Pipes......................................................................................................................................................................396
Auto-Negotiation on Ethernet Interfaces....................................................................................................................... 396
Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................................................... 396
14
Set Auto-Negotiation Options..................................................................................................................................398
View Advanced Interface Information............................................................................................................................ 398
Conguring the Interface Sampling Size.................................................................................................................. 399
Dynamic Counters..........................................................................................................................................................400
Clearing Interface Counters...................................................................................................................................... 401
Enhanced Validation of Interface Ranges........................................................................................................................401
23 Internet Protocol Security (IPSec)............................................................................ 402
Conguring IPSec ......................................................................................................................................................... 402
24 IPv4 Routing............................................................................................................. 404
IP Addresses.................................................................................................................................................................. 404
Implementation Information......................................................................................................................................404
Conguration Tasks for IP Addresses............................................................................................................................. 404
Assigning IP Addresses to an Interface.......................................................................................................................... 405
Conguring Static Routes.............................................................................................................................................. 405
Congure Static Routes for the Management Interface.................................................................................................407
IPv4 Path MTU Discovery Overview..............................................................................................................................408
Using the Congured Source IP Address in ICMP Messages......................................................................................... 408
Conguring the ICMP Source Interface................................................................................................................... 408
Conguring the Duration to Establish a TCP Connection............................................................................................... 409
Enabling Directed Broadcast.......................................................................................................................................... 409
Resolution of Host Names............................................................................................................................................. 409
Enabling Dynamic Resolution of Host Names..................................................................................................................410
Specifying the Local System Domain and a List of Domains............................................................................................410
Conguring DNS with Traceroute.................................................................................................................................... 411
ARP................................................................................................................................................................................. 411
Conguration Tasks for ARP........................................................................................................................................... 412
Conguring Static ARP Entries....................................................................................................................................... 412
Enabling Proxy ARP........................................................................................................................................................ 412
Clearing ARP Cache........................................................................................................................................................413
ARP Learning via Gratuitous ARP................................................................................................................................... 413
Enabling ARP Learning via Gratuitous ARP..................................................................................................................... 413
ARP Learning via ARP Request.......................................................................................................................................414
Conguring ARP Retries................................................................................................................................................. 414
ICMP.............................................................................................................................................................................. 415
Conguration Tasks for ICMP......................................................................................................................................... 415
Enabling ICMP Unreachable Messages...........................................................................................................................415
UDP Helper.....................................................................................................................................................................416
Congure UDP Helper.............................................................................................................................................. 416
Important Points to Remember.................................................................................................................................416
Enabling UDP Helper.......................................................................................................................................................416
Conguring a Broadcast Address....................................................................................................................................416
Congurations Using UDP Helper................................................................................................................................... 417
UDP Helper with Broadcast-All Addresses...................................................................................................................... 417
UDP Helper with Subnet Broadcast Addresses...............................................................................................................418
15
UDP Helper with Congured Broadcast Addresses.........................................................................................................418
UDP Helper with No Congured Broadcast Addresses................................................................................................... 419
Troubleshooting UDP Helper...........................................................................................................................................419
25 IPv6 Routing............................................................................................................. 420
Protocol Overview......................................................................................................................................................... 420
Extended Address Space......................................................................................................................................... 420
Stateless Autoconguration..................................................................................................................................... 420
IPv6 Headers............................................................................................................................................................ 421
IPv6 Header Fields....................................................................................................................................................421
Extension Header Fields...........................................................................................................................................423
Addressing............................................................................................................................................................... 424
Implementing IPv6 with Dell Networking OS..................................................................................................................425
ICMPv6..........................................................................................................................................................................426
Path MTU Discovery...................................................................................................................................................... 427
IPv6 Neighbor Discovery................................................................................................................................................427
IPv6 Neighbor Discovery of MTU Packets............................................................................................................... 428
Conguration Task List for IPv6 RDNSS.........................................................................................................................428
Conguring the IPv6 Recursive DNS Server............................................................................................................ 428
Debugging IPv6 RDNSS Information Sent to the Host ............................................................................................429
Displaying IPv6 RDNSS Information......................................................................................................................... 429
Secure Shell (SSH) Over an IPv6 Transport...................................................................................................................430
Conguration Tasks for IPv6.......................................................................................................................................... 430
Adjusting Your CAM-Prole......................................................................................................................................430
Assigning an IPv6 Address to an Interface................................................................................................................ 431
Assigning a Static IPv6 Route.................................................................................................................................. 432
Conguring Telnet with IPv6.................................................................................................................................... 432
SNMP over IPv6...................................................................................................................................................... 432
Showing IPv6 Information........................................................................................................................................ 433
Showing an IPv6 Interface....................................................................................................................................... 433
Showing IPv6 Routes............................................................................................................................................... 434
Showing the Running-Conguration for an Interface............................................................................................... 435
Clearing IPv6 Routes................................................................................................................................................435
Conguring IPv6 RA Guard............................................................................................................................................ 436
Conguring IPv6 RA Guard on an Interface..............................................................................................................437
Monitoring IPv6 RA Guard....................................................................................................................................... 438
26 iSCSI Optimization.................................................................................................... 439
iSCSI Optimization Overview......................................................................................................................................... 439
Monitoring iSCSI Trac Flows................................................................................................................................. 440
Application of Quality of Service to iSCSI Trac Flows............................................................................................440
Information Monitored in iSCSI Trac Flows.............................................................................................................441
Detection and Auto-Conguration for Dell EqualLogic Arrays....................................................................................441
Conguring Detection and Ports for Dell Compellent Arrays.................................................................................... 442
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..........................................................................442
Enable and Disable iSCSI Optimization..................................................................................................................... 443
16
Default iSCSI Optimization Values.................................................................................................................................. 443
iSCSI Optimization Prerequisites.................................................................................................................................... 444
Conguring iSCSI Optimization...................................................................................................................................... 444
Displaying iSCSI Optimization Information......................................................................................................................446
27 Intermediate System to Intermediate System............................................................ 448
IS-IS Protocol Overview.................................................................................................................................................448
IS-IS Addressing.............................................................................................................................................................448
Multi-Topology IS-IS....................................................................................................................................................... 449
Transition Mode....................................................................................................................................................... 449
Interface Support.....................................................................................................................................................449
Adjacencies..............................................................................................................................................................449
Graceful Restart............................................................................................................................................................ 450
Timers......................................................................................................................................................................450
Implementation Information........................................................................................................................................... 450
Conguration Information............................................................................................................................................... 451
Conguration Tasks for IS-IS.....................................................................................................................................451
Conguring the Distance of a Route........................................................................................................................ 459
Changing the IS-Type............................................................................................................................................... 459
Redistributing IPv4 Routes.......................................................................................................................................462
Redistributing IPv6 Routes.......................................................................................................................................462
Conguring Authentication Passwords.....................................................................................................................463
Setting the Overload Bit...........................................................................................................................................464
Debugging IS-IS....................................................................................................................................................... 464
IS-IS Metric Styles......................................................................................................................................................... 465
Congure Metric Values.................................................................................................................................................465
Maximum Values in the Routing Table...................................................................................................................... 466
Change the IS-IS Metric Style in One Level Only..................................................................................................... 466
Leaks from One Level to Another.............................................................................................................................467
Sample Congurations................................................................................................................................................... 468
28 Link Aggregation Control Protocol (LACP).................................................................471
Introduction to Dynamic LAGs and LACP........................................................................................................................471
Important Points to Remember.................................................................................................................................471
LACP Modes............................................................................................................................................................472
Conguring LACP Commands..................................................................................................................................472
LACP Conguration Tasks.............................................................................................................................................. 473
Creating a LAG.........................................................................................................................................................473
Conguring the LAG Interfaces as Dynamic............................................................................................................. 473
Setting the LACP Long Timeout...............................................................................................................................474
Monitoring and Debugging LACP............................................................................................................................. 474
Shared LAG State Tracking............................................................................................................................................ 475
Conguring Shared LAG State Tracking................................................................................................................... 475
Important Points about Shared LAG State Tracking................................................................................................. 476
LACP Basic Conguration Example................................................................................................................................ 477
Congure a LAG on ALPHA......................................................................................................................................477
17
29 Layer 2...................................................................................................................... 485
Manage the MAC Address Table.................................................................................................................................... 485
Clearing the MAC Address Table.............................................................................................................................. 485
Setting the Aging Time for Dynamic Entries.............................................................................................................485
Conguring a Static MAC Address...........................................................................................................................485
Displaying the MAC Address Table........................................................................................................................... 486
MAC Learning Limit........................................................................................................................................................486
Setting the MAC Learning Limit............................................................................................................................... 487
mac learning-limit Dynamic.......................................................................................................................................487
mac learning-limit mac-address-sticky..................................................................................................................... 487
mac learning-limit station-move................................................................................................................................487
mac learning-limit no-station-move..........................................................................................................................488
Learning Limit Violation Actions................................................................................................................................488
Setting Station Move Violation Actions.................................................................................................................... 488
Recovering from Learning Limit and Station Move Violations...................................................................................489
NIC Teaming.................................................................................................................................................................. 489
Congure Redundant Pairs............................................................................................................................................ 490
Important Points about Conguring Redundant Pairs...............................................................................................492
Far-End Failure Detection...............................................................................................................................................493
FEFD State Changes................................................................................................................................................494
Conguring FEFD.....................................................................................................................................................494
Enabling FEFD on an Interface.................................................................................................................................495
Debugging FEFD......................................................................................................................................................496
30 Link Layer Discovery Protocol (LLDP).......................................................................498
802.1AB (LLDP) Overview............................................................................................................................................. 498
Protocol Data Units..................................................................................................................................................498
Optional TLVs.................................................................................................................................................................499
Management TLVs...................................................................................................................................................499
TIA-1057 (LLDP-MED) Overview....................................................................................................................................501
TIA Organizationally Specic TLVs............................................................................................................................501
Congure LLDP............................................................................................................................................................. 505
Related Conguration Tasks.....................................................................................................................................505
Important Points to Remember................................................................................................................................505
LLDP Compatibility.................................................................................................................................................. 505
CONFIGURATION versus INTERFACE Congurations.................................................................................................. 505
Enabling LLDP............................................................................................................................................................... 506
Disabling and Undoing LLDP.................................................................................................................................... 506
Enabling LLDP on Management Ports........................................................................................................................... 506
Disabling and Undoing LLDP on Management Ports................................................................................................ 507
Advertising TLVs............................................................................................................................................................ 507
Viewing the LLDP Conguration.................................................................................................................................... 508
Viewing Information Advertised by Adjacent LLDP Agents............................................................................................ 509
Conguring LLDPDU Intervals....................................................................................................................................... 509
Conguring Transmit and Receive Mode.........................................................................................................................510
18
Conguring a Time to Live...............................................................................................................................................511
Debugging LLDP.............................................................................................................................................................512
Relevant Management Objects.......................................................................................................................................512
31 Microsoft Network Load Balancing............................................................................. 517
NLB Unicast Mode Scenario........................................................................................................................................... 517
NLB Multicast Mode Scenario........................................................................................................................................ 517
Limitations of the NLB Feature....................................................................................................................................... 518
Microsoft Clustering....................................................................................................................................................... 518
Enable and Disable VLAN Flooding .................................................................................................................................518
Conguring a Switch for NLB ........................................................................................................................................ 519
................................................................................................................................................................................. 519
32 Multicast Source Discovery Protocol (MSDP).......................................................... 520
Protocol Overview......................................................................................................................................................... 520
Anycast RP.....................................................................................................................................................................521
Implementation Information............................................................................................................................................ 521
Congure Multicast Source Discovery Protocol..............................................................................................................521
Related Conguration Tasks..................................................................................................................................... 522
Enable MSDP.................................................................................................................................................................526
Manage the Source-Active Cache..................................................................................................................................527
Viewing the Source-Active Cache............................................................................................................................527
Limiting the Source-Active Cache............................................................................................................................ 527
Clearing the Source-Active Cache........................................................................................................................... 528
Enabling the Rejected Source-Active Cache............................................................................................................ 528
Accept Source-Active Messages that Fail the RFP Check.............................................................................................528
Specifying Source-Active Messages.............................................................................................................................. 532
Limiting the Source-Active Messages from a Peer.........................................................................................................533
Preventing MSDP from Caching a Local Source............................................................................................................ 533
Preventing MSDP from Caching a Remote Source........................................................................................................ 534
Preventing MSDP from Advertising a Local Source........................................................................................................534
Logging Changes in Peership States..............................................................................................................................535
Terminating a Peership...................................................................................................................................................535
Clearing Peer Statistics..................................................................................................................................................536
Debugging MSDP.......................................................................................................................................................... 536
MSDP with Anycast RP................................................................................................................................................. 537
Conguring Anycast RP.................................................................................................................................................538
Reducing Source-Active Message Flooding............................................................................................................. 539
Specifying the RP Address Used in SA Messages....................................................................................................539
MSDP Sample Congurations........................................................................................................................................542
33 Multiple Spanning Tree Protocol (MSTP)..................................................................545
Protocol Overview......................................................................................................................................................... 545
Spanning Tree Variations................................................................................................................................................546
Implementation Information..................................................................................................................................... 546
Congure Multiple Spanning Tree Protocol.................................................................................................................... 546
19
Related Conguration Tasks.....................................................................................................................................546
Enable Multiple Spanning Tree Globally.......................................................................................................................... 547
Adding and Removing Interfaces....................................................................................................................................547
Creating Multiple Spanning Tree Instances.....................................................................................................................547
Inuencing MSTP Root Selection...................................................................................................................................548
Interoperate with Non-Dell Networking OS Bridges....................................................................................................... 549
Changing the Region Name or Revision......................................................................................................................... 549
Modifying Global Parameters......................................................................................................................................... 550
Modifying the Interface Parameters................................................................................................................................551
Conguring an EdgePort................................................................................................................................................552
Flush MAC Addresses after a Topology Change.............................................................................................................552
MSTP Sample Congurations........................................................................................................................................ 553
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-CongurationSFTOS
Example Running-Conguration...............................................................................................................................553
Debugging and Verifying MSTP Congurations............................................................................................................. 556
34 Multicast Features.................................................................................................... 558
Enabling IP Multicast..................................................................................................................................................... 558
Implementation Information........................................................................................................................................... 558
Multicast Policies........................................................................................................................................................... 559
IPv4 Multicast Policies............................................................................................................................................. 559
35 Object Tracking.........................................................................................................566
Object Tracking Overview..............................................................................................................................................566
Track Layer 2 Interfaces........................................................................................................................................... 567
Track Layer 3 Interfaces........................................................................................................................................... 567
Track IPv4 and IPv6 Routes..................................................................................................................................... 567
Set Tracking Delays..................................................................................................................................................568
VRRP Object Tracking............................................................................................................................................. 569
Object Tracking Conguration........................................................................................................................................569
Tracking a Layer 2 Interface..................................................................................................................................... 569
Tracking a Layer 3 Interface..................................................................................................................................... 570
Track an IPv4/IPv6 Route.........................................................................................................................................571
Displaying Tracked Objects.............................................................................................................................................574
36 Open Shortest Path First (OSPFv2 and OSPFv3)..................................................... 577
Protocol Overview..........................................................................................................................................................577
Autonomous System (AS) Areas...............................................................................................................................577
Area Types................................................................................................................................................................578
Networks and Neighbors..........................................................................................................................................579
Router Types............................................................................................................................................................ 579
Designated and Backup Designated Routers.............................................................................................................581
Link-State Advertisements (LSAs)............................................................................................................................581
Router Priority and Cost.......................................................................................................................................... 582
OSPF with Dell Networking OS......................................................................................................................................583
Graceful Restart.......................................................................................................................................................584
20
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