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PowerSwitch S4048-ON

Dell PowerSwitch S4048-ON User manual

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Dell Configuration Guide for the S4048–ON
System
9.8(0.0P5)
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 © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell
â„¢
and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015 - 07
Rev. A00
Contents
1 About this Guide................................................................................................. 36
Audience..............................................................................................................................................36
Conventions........................................................................................................................................ 36
Related Documents............................................................................................................................ 36
2 Configuration Fundamentals............................................................................37
Accessing the Command Line............................................................................................................37
CLI Modes............................................................................................................................................37
Navigating CLI Modes................................................................................................................... 39
The do Command...............................................................................................................................42
Undoing Commands...........................................................................................................................43
Obtaining Help....................................................................................................................................44
Entering and Editing Commands....................................................................................................... 44
Command History...............................................................................................................................45
Filtering show Command Outputs.....................................................................................................45
Multiple Users in Configuration Mode............................................................................................... 47
3 Getting Started................................................................................................... 48
Console Access...................................................................................................................................48
Serial Console................................................................................................................................48
Accessing the CLI Interface and Running Scripts Using SSH............................................................49
Entering CLI commands Using an SSH Connection................................................................... 50
Executing Local CLI Scripts Using an SSH Connection...............................................................50
Default Configuration..........................................................................................................................51
Configuring a Host Name................................................................................................................... 51
Accessing the System Remotely.........................................................................................................51
Accessing the System Remotely................................................................................................... 51
Configure the Management Port IP Address................................................................................51
Configure a Management Route.................................................................................................. 52
Configuring a Username and Password.......................................................................................52
Configuring the Enable Password...................................................................................................... 52
Configuration File Management.........................................................................................................53
Copy Files to and from the System.............................................................................................. 53
Mounting an NFS File System....................................................................................................... 54
Save the Running-Configuration..................................................................................................56
Configure the Overload Bit for a Startup Scenario......................................................................56
Viewing Files.................................................................................................................................. 56
Compressing Configuration Files................................................................................................. 58
3
Managing the File System...................................................................................................................60
Enabling Software Features on Devices Using a Command Option.................................................61
View Command History......................................................................................................................62
Upgrading Dell Networking OS.......................................................................................................... 62
Using Hashes to Validate Software Images........................................................................................62
Using HTTP for File Transfers............................................................................................................. 64
4 Management........................................................................................................65
Configuring Privilege Levels............................................................................................................... 65
Creating a Custom Privilege Level................................................................................................65
Removing a Command from EXEC Mode................................................................................... 65
Moving a Command from EXEC Privilege Mode to EXEC Mode................................................66
Allowing Access to CONFIGURATION Mode Commands..........................................................66
Allowing Access to the Following Modes.................................................................................... 66
Applying a Privilege Level to a Username.................................................................................... 68
Applying a Privilege Level to a Terminal Line...............................................................................68
Configuring Logging...........................................................................................................................68
Audit and Security Logs................................................................................................................ 69
Configuring Logging Format .......................................................................................................71
Display the Logging Buffer and the Logging Configuration........................................................ 71
Setting Up a Secure Connection to a Syslog Server.................................................................... 72
Sending System Messages to a Syslog Server.............................................................................. 73
Track Login Activity............................................................................................................................. 73
Restrictions for Tracking Login Activity........................................................................................ 73
Configuring Login Activity Tracking............................................................................................. 73
Display Login Statistics..................................................................................................................74
Limit Concurrent Login Sessions........................................................................................................75
Restrictions for Limiting the Number of Concurrent Sessions....................................................75
Configuring Concurrent Session Limit......................................................................................... 75
Enabling the System to Clear Existing Sessions...........................................................................76
Log Messages in the Internal Buffer................................................................................................... 76
Configuration Task List for System Log Management.................................................................77
Disabling System Logging................................................................................................................... 77
Sending System Messages to a Syslog Server.................................................................................... 77
Configuring a UNIX System as a Syslog Server............................................................................ 77
Changing System Logging Settings....................................................................................................78
Display the Logging Buffer and the Logging Configuration..............................................................79
Configuring a UNIX Logging Facility Level.........................................................................................79
Synchronizing Log Messages..............................................................................................................81
Enabling Timestamp on Syslog Messages..........................................................................................81
File Transfer Services...........................................................................................................................82
Configuration Task List for File Transfer Services........................................................................82
4
Enabling the FTP Server................................................................................................................ 82
Configuring FTP Server Parameters............................................................................................. 82
Configuring FTP Client Parameters..............................................................................................83
Terminal Lines.....................................................................................................................................84
Denying and Permitting Access to a Terminal Line.....................................................................84
Configuring Login Authentication for Terminal Lines................................................................. 85
Setting Time Out of EXEC Privilege Mode......................................................................................... 86
Using Telnet to get to Another Network Device............................................................................... 87
Lock CONFIGURATION Mode............................................................................................................87
Viewing the Configuration Lock Status........................................................................................88
Restoring the Factory Default Settings.............................................................................................. 88
Important Points to Remember....................................................................................................89
Restoring Factory Default Environment Variables.......................................................................89
5 802.1ag................................................................................................................. 92
Ethernet CFM...................................................................................................................................... 92
Maintenance Domains........................................................................................................................93
Maintenance Points.............................................................................................................................93
Maintenance End Points.....................................................................................................................94
Implementation Information.............................................................................................................. 95
Configuring the CFM...........................................................................................................................95
Related Configuration Tasks.........................................................................................................95
Enabling Ethernet CFM....................................................................................................................... 95
Creating a Maintenance Domain........................................................................................................95
Creating a Maintenance Association..................................................................................................96
Create Maintenance Points................................................................................................................ 96
Creating a Maintenance End Point...............................................................................................96
Creating a Maintenance Intermediate Point................................................................................ 97
Displaying the MP Databases........................................................................................................98
Continuity Check Messages............................................................................................................... 99
Enabling CCM............................................................................................................................. 100
Enabling Cross-Checking...........................................................................................................100
Sending Loopback Messages and Responses................................................................................. 100
Sending Linktrace Messages and Responses................................................................................... 101
Caching Link Trace......................................................................................................................101
Enabling CFM SNMP Traps............................................................................................................... 102
Displaying Ethernet CFM Statistics...................................................................................................104
6 802.1X.................................................................................................................105
The Port-Authentication Process.....................................................................................................106
EAP over RADIUS.........................................................................................................................108
Configuring 802.1X........................................................................................................................... 108
5
Related Configuration Tasks.......................................................................................................108
Important Points to Remember....................................................................................................... 109
Enabling 802.1X.................................................................................................................................109
Configuring Request Identity Re-Transmissions.............................................................................. 111
Configuring a Quiet Period after a Failed Authentication.......................................................... 111
Forcibly Authorizing or Unauthorizing a Port...................................................................................112
Re-Authenticating a Port...................................................................................................................113
Configuring Timeouts....................................................................................................................... 114
Configuring Dynamic VLAN Assignment with Port Authentication.................................................115
Guest and Authentication-Fail VLANs.............................................................................................. 116
Configuring a Guest VLAN...........................................................................................................117
Configuring an Authentication-Fail VLAN...................................................................................117
7 Access Control List (ACL) VLAN Groups and Content Addressable
Memory (CAM)......................................................................................................119
Optimizing CAM Utilization During the Attachment of ACLs to VLANs..........................................119
Guidelines for Configuring ACL VLAN Groups................................................................................ 120
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.........................121
Configuring ACL VLAN Groups................................................................................................... 121
Configuring FP Blocks for VLAN Parameters............................................................................. 122
Viewing CAM Usage.......................................................................................................................... 122
Allocating FP Blocks for VLAN Processes........................................................................................ 124
8 Access Control Lists (ACLs).............................................................................125
IP Access Control Lists (ACLs).......................................................................................................... 125
CAM Usage.................................................................................................................................. 126
Implementing ACLs on Dell Networking OS..............................................................................127
Important Points to Remember........................................................................................................128
Configuration Task List for Route Maps..................................................................................... 128
Configuring Match Routes.......................................................................................................... 131
Configuring Set Conditions.........................................................................................................132
Configure a Route Map for Route Redistribution...................................................................... 133
Configure a Route Map for Route Tagging................................................................................134
Continue Clause..........................................................................................................................134
IP Fragment Handling........................................................................................................................135
IP Fragments ACL Examples....................................................................................................... 135
Layer 4 ACL Rules Examples....................................................................................................... 135
Configure a Standard IP ACL............................................................................................................ 136
Configuring a Standard IP ACL Filter.......................................................................................... 138
Configure an Extended IP ACL......................................................................................................... 139
Configuring Filters with a Sequence Number............................................................................139
Configuring Filters Without a Sequence Number......................................................................140
6
Configure Layer 2 and Layer 3 ACLs.................................................................................................141
Assign an IP ACL to an Interface.......................................................................................................142
Applying an IP ACL............................................................................................................................142
Counting ACL Hits.......................................................................................................................143
Configure Ingress ACLs.....................................................................................................................143
Configure Egress ACLs..................................................................................................................... 144
Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 145
IP Prefix Lists......................................................................................................................................145
Implementation Information...................................................................................................... 146
Configuration Task List for Prefix Lists....................................................................................... 146
ACL Resequencing............................................................................................................................150
Resequencing an ACL or Prefix List............................................................................................ 151
Route Maps........................................................................................................................................152
Implementation Information.......................................................................................................152
Logging of ACL Processes................................................................................................................ 152
Guidelines for Configuring ACL Logging....................................................................................153
Configuring ACL Logging............................................................................................................154
Flow-Based Monitoring Support for ACLs....................................................................................... 155
Behavior of Flow-Based Monitoring...........................................................................................155
Enabling Flow-Based Monitoring................................................................................................157
Configuring UDF ACL........................................................................................................................158
9 Bidirectional Forwarding Detection (BFD)...................................................161
How BFD Works.................................................................................................................................161
BFD Packet Format......................................................................................................................162
BFD Sessions............................................................................................................................... 164
BFD Three-Way Handshake........................................................................................................164
Session State Changes................................................................................................................ 165
Important Points to Remember........................................................................................................166
Configure BFD...................................................................................................................................166
Configure BFD for Physical Ports................................................................................................167
Configure BFD for Static Routes.................................................................................................170
Configure BFD for OSPF..............................................................................................................172
Configure BFD for OSPFv3..........................................................................................................175
Configure BFD for IS-IS...............................................................................................................176
Configure BFD for BGP............................................................................................................... 179
Configure BFD for VRRP............................................................................................................. 186
Configuring Protocol Liveness................................................................................................... 189
Troubleshooting BFD..................................................................................................................189
10 Border Gateway Protocol IPv4 (BGPv4).....................................................191
Autonomous Systems (AS)................................................................................................................ 191
7
Sessions and Peers............................................................................................................................193
Establish a Session.......................................................................................................................194
Route Reflectors................................................................................................................................194
BGP Attributes................................................................................................................................... 195
Best Path Selection Criteria........................................................................................................ 196
Weight..........................................................................................................................................198
Local Preference......................................................................................................................... 198
Multi-Exit Discriminators (MEDs)................................................................................................199
Origin...........................................................................................................................................200
AS Path.........................................................................................................................................201
Next Hop......................................................................................................................................201
Multiprotocol BGP............................................................................................................................ 202
Implement BGP with Dell Networking OS.......................................................................................202
Additional Path (Add-Path) Support...........................................................................................202
Advertise IGP Cost as MED for Redistributed Routes................................................................202
Ignore Router-ID for Some Best-Path Calculations................................................................. 203
Four-Byte AS Numbers...............................................................................................................203
AS4 Number Representation......................................................................................................204
AS Number Migration................................................................................................................. 205
BGP4 Management Information Base (MIB)..............................................................................207
Important Points to Remember..................................................................................................207
Configuration Information............................................................................................................... 208
BGP Configuration........................................................................................................................... 208
Enabling BGP.............................................................................................................................. 209
Configuring AS4 Number Representations................................................................................ 213
Configuring Peer Groups............................................................................................................ 215
Configuring BGP Fast Fall-Over..................................................................................................217
Configuring Passive Peering....................................................................................................... 219
Maintaining Existing AS Numbers During an AS Migration....................................................... 220
Allowing an AS Number to Appear in its Own AS Path..............................................................221
Enabling Graceful Restart........................................................................................................... 222
Enabling Neighbor Graceful Restart...........................................................................................223
Filtering on an AS-Path Attribute................................................................................................223
Regular Expressions as Filters.....................................................................................................225
Redistributing Routes..................................................................................................................226
Enabling Additional Paths........................................................................................................... 227
Configuring IP Community Lists.................................................................................................227
Configuring an IP Extended Community List............................................................................ 229
Filtering Routes with Community Lists...................................................................................... 230
Manipulating the COMMUNITY Attribute.................................................................................. 230
Changing MED Attributes........................................................................................................... 232
Changing the LOCAL_PREFERENCE Attribute.......................................................................... 232
8
Changing the NEXT_HOP Attribute........................................................................................... 233
Changing the WEIGHT Attribute................................................................................................ 234
Enabling Multipath...................................................................................................................... 234
Filtering BGP Routes................................................................................................................... 234
Filtering BGP Routes Using Route Maps.................................................................................... 236
Filtering BGP Routes Using AS-PATH Information.................................................................... 237
Configuring BGP Route Reflectors.............................................................................................237
Aggregating Routes.................................................................................................................... 238
Configuring BGP Confederations.............................................................................................. 239
Enabling Route Flap Dampening................................................................................................239
Changing BGP Timers.................................................................................................................242
Enabling BGP Neighbor Soft-Reconfiguration..........................................................................242
Route Map Continue.................................................................................................................. 244
Enabling MBGP Configurations........................................................................................................244
BGP Regular Expression Optimization.............................................................................................245
Debugging BGP................................................................................................................................ 245
Storing Last and Bad PDUs.........................................................................................................246
Capturing PDUs...........................................................................................................................247
PDU Counters............................................................................................................................. 248
Sample Configurations.....................................................................................................................248
11 Content Addressable Memory (CAM)..........................................................255
CAM Allocation................................................................................................................................. 255
Test CAM Usage................................................................................................................................ 257
View CAM-ACL Settings....................................................................................................................257
View CAM Usage...............................................................................................................................259
CAM Optimization............................................................................................................................ 260
Troubleshoot CAM Profiling.............................................................................................................260
CAM Profile Mismatches............................................................................................................ 260
QoS CAM Region Limitation...................................................................................................... 260
12 Control Plane Policing (CoPP).....................................................................262
Configure Control Plane Policing.................................................................................................... 263
Configuring CoPP for Protocols................................................................................................ 264
Configuring CoPP for CPU Queues...........................................................................................266
CoPP for OSPFv3 Packets...........................................................................................................267
Configuring CoPP for OSPFv3....................................................................................................270
Show Commands........................................................................................................................ 271
13 Data Center Bridging (DCB)..........................................................................273
Ethernet Enhancements in Data Center Bridging............................................................................273
Priority-Based Flow Control....................................................................................................... 274
9
Enhanced Transmission Selection..............................................................................................275
Data Center Bridging Exchange Protocol (DCBx)..................................................................... 276
Data Center Bridging in a Traffic Flow....................................................................................... 277
Priority-Based Flow Control............................................................................................................. 277
Enhanced Transmission Selection................................................................................................... 278
Data Center Bridging Exchange Protocol (DCBx)........................................................................... 279
Data Center Bridging in a Traffic Flow.............................................................................................280
Enabling Data Center Bridging.........................................................................................................280
DCB Maps and its Attributes....................................................................................................... 281
Data Center Bridging: Default Configuration..................................................................................282
Configuring Priority-Based Flow Control........................................................................................282
Configuring Lossless Queues.....................................................................................................283
Configuring PFC in a DCB Map........................................................................................................285
PFC Configuration Notes............................................................................................................285
PFC Prerequisites and Restrictions.............................................................................................286
Applying a DCB Map on a Port.........................................................................................................286
Configuring PFC without a DCB Map.............................................................................................. 287
Configuring Lossless QueuesExample:......................................................................................288
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................289
Pause and Resume of Traffic......................................................................................................289
Buffer Sizes for Lossless or PFC Packets................................................................................... 290
Behavior of Tagged Packets.............................................................................................................290
Configuration Example for DSCP and PFC Priorities.......................................................................291
Using PFC to Manage Converged Ethernet Traffic......................................................................... 292
Configure Enhanced Transmission Selection..................................................................................292
ETS Prerequisites and Restrictions............................................................................................. 292
Creating an ETS Priority Group.................................................................................................. 293
ETS Operation with DCBx.......................................................................................................... 294
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 294
Configuring ETS in a DCB Map...................................................................................................295
Hierarchical Scheduling in ETS Output Policies.............................................................................. 297
Using ETS to Manage Converged Ethernet Traffic..........................................................................298
Applying DCB Policies in a Switch Stack......................................................................................... 298
Configure a DCBx Operation........................................................................................................... 298
DCBx Operation..........................................................................................................................298
DCBx Port Roles..........................................................................................................................299
DCB Configuration Exchange....................................................................................................300
Configuration Source Election................................................................................................... 301
Propagation of DCB Information................................................................................................301
Auto-Detection and Manual Configuration of the DCBx Version............................................302
DCBx Example............................................................................................................................ 302
DCBx Prerequisites and Restrictions..........................................................................................303
10
Configuring DCBx.......................................................................................................................303
Verifying the DCB Configuration......................................................................................................307
QoS dot1p Traffic Classification and Queue Assignment............................................................... 319
Configuring the Dynamic Buffer Method........................................................................................320
Sample DCB Configuration...............................................................................................................321
PFC and ETS Configuration Command Examples.....................................................................323
14 Dynamic Host Configuration Protocol (DHCP)........................................324
DHCP Packet Format and Options.................................................................................................. 324
Assign an IP Address using DHCP....................................................................................................326
Implementation Information............................................................................................................ 327
Configure the System to be a DHCP Server....................................................................................328
Configuring the Server for Automatic Address Allocation........................................................328
Specifying a Default Gateway.....................................................................................................330
Configure a Method of Hostname Resolution.......................................................................... 330
Using DNS for Address Resolution.............................................................................................330
Using NetBIOS WINS for Address Resolution............................................................................330
Creating Manual Binding Entries................................................................................................330
Debugging the DHCP Server...................................................................................................... 331
Using DHCP Clear Commands...................................................................................................331
Configure the System to be a Relay Agent...................................................................................... 331
Configure the System to be a DHCP Client.....................................................................................333
Configuring the DHCP Client System........................................................................................334
DHCP Client on a Management Interface................................................................................. 335
DHCP Client Operation with Other Features............................................................................ 336
Configure the System for User Port Stacking (Option 230)............................................................337
Configure Secure DHCP...................................................................................................................337
Option 82.....................................................................................................................................337
DHCP Snooping..........................................................................................................................338
Drop DHCP Packets on Snooped VLANs Only.......................................................................... 341
Dynamic ARP Inspection............................................................................................................ 342
Configuring Dynamic ARP Inspection........................................................................................343
Source Address Validation................................................................................................................344
Enabling IP Source Address Validation...................................................................................... 344
DHCP MAC Source Address Validation......................................................................................345
Enabling IP+MAC Source Address Validation............................................................................ 345
Viewing the Number of SAV Dropped Packets..........................................................................346
Clearing the Number of SAV Dropped Packets.........................................................................346
15 Equal Cost Multi-Path (ECMP)..................................................................... 347
ECMP for Flow-Based Affinity.......................................................................................................... 347
Configuring the Hash Algorithm................................................................................................ 347
11
Enabling Deterministic ECMP Next Hop....................................................................................347
Configuring the Hash Algorithm Seed.......................................................................................348
Link Bundle Monitoring.................................................................................................................... 348
Managing ECMP Group Paths.................................................................................................... 349
Creating an ECMP Group Bundle...............................................................................................349
Modifying the ECMP Group Threshold......................................................................................350
16 FCoE Transit.....................................................................................................351
Fibre Channel over Ethernet.............................................................................................................351
Ensure Robustness in a Converged Ethernet Network................................................................... 351
FIP Snooping on Ethernet Bridges................................................................................................... 353
FIP Snooping in a Switch Stack........................................................................................................ 355
Using FIP Snooping...........................................................................................................................355
FIP Snooping Prerequisites......................................................................................................... 355
Important Points to Remember................................................................................................. 356
Enabling the FCoE Transit Feature............................................................................................. 357
Enable FIP Snooping on VLANs.................................................................................................. 357
Configure the FC-MAP Value..................................................................................................... 357
Configure a Port for a Bridge-to-Bridge Link............................................................................ 357
Configure a Port for a Bridge-to-FCF Link................................................................................ 358
Impact on Other Software Features...........................................................................................358
FIP Snooping Restrictions...........................................................................................................358
Configuring FIP Snooping.......................................................................................................... 359
Displaying FIP Snooping Information.............................................................................................. 359
FCoE Transit Configuration Example...............................................................................................365
17 FIPS Cryptography..........................................................................................367
Configuration Tasks.......................................................................................................................... 367
Preparing the System........................................................................................................................367
Enabling FIPS Mode..........................................................................................................................368
Generating Host-Keys...................................................................................................................... 368
Monitoring FIPS Mode Status...........................................................................................................369
Disabling FIPS Mode......................................................................................................................... 369
18 Force10 Resilient Ring Protocol (FRRP)..................................................... 371
Protocol Overview.............................................................................................................................371
Ring Status...................................................................................................................................372
Multiple FRRP Rings.....................................................................................................................373
Important FRRP Points................................................................................................................ 373
Important FRRP Concepts.......................................................................................................... 373
Implementing FRRP.......................................................................................................................... 375
FRRP Configuration...........................................................................................................................375
12
Creating the FRRP Group............................................................................................................375
Configuring the Control VLAN................................................................................................... 376
Configuring and Adding the Member VLANs.............................................................................377
Setting the FRRP Timers..............................................................................................................378
Clearing the FRRP Counters....................................................................................................... 378
Viewing the FRRP Configuration................................................................................................ 379
Viewing the FRRP Information....................................................................................................379
Troubleshooting FRRP......................................................................................................................379
Configuration Checks.................................................................................................................379
Sample Configuration and Topology.............................................................................................. 380
19 GARP VLAN Registration Protocol (GVRP)................................................ 382
Important Points to Remember....................................................................................................... 382
Configure GVRP................................................................................................................................383
Related Configuration Tasks.......................................................................................................383
Enabling GVRP Globally................................................................................................................... 384
Enabling GVRP on a Layer 2 Interface............................................................................................. 384
Configure GVRP Registration...........................................................................................................384
Configure a GARP Timer.................................................................................................................. 385
RPM Redundancy..............................................................................................................................386
20 High Availability (HA).....................................................................................387
Component Redundancy................................................................................................................. 387
Automatic and Manual Stack Unit Failover................................................................................ 387
Synchronization between Management and Standby Units.....................................................388
Forcing an Stack Unit Failover....................................................................................................388
Specifying an Auto-Failover Limit.............................................................................................. 389
Disabling Auto-Reboot...............................................................................................................389
Manually Synchronizing Management and Standby Units........................................................389
Pre-Configuring a Stack Unit Slot....................................................................................................389
Removing a Provisioned Logical Stack Unit.................................................................................... 390
Hitless Behavior................................................................................................................................ 390
Graceful Restart................................................................................................................................390
Software Resiliency........................................................................................................................... 391
Software Component Health Monitoring.................................................................................. 391
System Health Monitoring.......................................................................................................... 391
Failure and Event Logging...........................................................................................................391
Hot-Lock Behavior........................................................................................................................... 392
21 Internet Group Management Protocol (IGMP).........................................393
IGMP Implementation Information..................................................................................................393
IGMP Protocol Overview..................................................................................................................393
13
IGMP Version 2............................................................................................................................393
IGMP Version 3............................................................................................................................395
Configure IGMP................................................................................................................................ 398
Related Configuration Tasks...................................................................................................... 398
Viewing IGMP Enabled Interfaces....................................................................................................399
Selecting an IGMP Version............................................................................................................... 399
Viewing IGMP Groups...................................................................................................................... 400
Adjusting Timers...............................................................................................................................400
Adjusting Query and Response Timers......................................................................................400
Preventing a Host from Joining a Group.........................................................................................401
Enabling IGMP Immediate-Leave.................................................................................................... 404
IGMP Snooping.................................................................................................................................404
IGMP Snooping Implementation Information...........................................................................404
Configuring IGMP Snooping...................................................................................................... 404
Removing a Group-Port Association.........................................................................................405
Disabling Multicast Flooding...................................................................................................... 405
Specifying a Port as Connected to a Multicast Router............................................................. 406
Configuring the Switch as Querier............................................................................................ 406
Fast Convergence after MSTP Topology Changes......................................................................... 407
Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................407
Protocol Separation....................................................................................................................408
Enabling and Disabling Management Egress Interface Selection............................................ 409
Handling of Management Route Configuration........................................................................ 410
Handling of Switch-Initiated Traffic........................................................................................... 410
Handling of Switch-Destined Traffic.......................................................................................... 411
Handling of Transit Traffic (Traffic Separation).......................................................................... 412
Mapping of Management Applications and Traffic Type...........................................................412
Behavior of Various Applications for Switch-Initiated Traffic ...................................................413
Behavior of Various Applications for Switch-Destined Traffic ................................................. 414
Interworking of EIS With Various Applications...........................................................................415
Designating a Multicast Router Interface.........................................................................................416
22 Interfaces......................................................................................................... 417
Basic Interface Configuration........................................................................................................... 417
Advanced Interface Configuration................................................................................................... 417
Interface Types..................................................................................................................................418
View Basic Interface Information..................................................................................................... 418
Enabling a Physical Interface........................................................................................................... 420
Physical Interfaces............................................................................................................................420
Configuration Task List for Physical Interfaces..........................................................................421
Overview of Layer Modes........................................................................................................... 421
Configuring Layer 2 (Data Link) Mode........................................................................................421
14
Configuring Layer 2 (Interface) Mode........................................................................................ 422
Configuring Layer 3 (Network) Mode.........................................................................................422
Configuring Layer 3 (Interface) Mode........................................................................................ 423
Egress Interface Selection (EIS)........................................................................................................424
Important Points to Remember................................................................................................. 424
Configuring EIS........................................................................................................................... 424
Management Interfaces....................................................................................................................425
Configuring Management Interfaces......................................................................................... 425
Configuring Management Interfaces on the S-Series...............................................................426
VLAN Interfaces.................................................................................................................................427
Loopback Interfaces.........................................................................................................................428
Null Interfaces...................................................................................................................................429
Port Channel Interfaces....................................................................................................................429
Port Channel Definition and Standards..................................................................................... 429
Port Channel Benefits.................................................................................................................429
Port Channel Implementation....................................................................................................430
10/40 Gbps Interfaces in Port Channels....................................................................................430
Configuration Tasks for Port Channel Interfaces......................................................................430
Creating a Port Channel..............................................................................................................431
Adding a Physical Interface to a Port Channel...........................................................................431
Reassigning an Interface to a New Port Channel......................................................................433
Configuring the Minimum Oper Up Links in a Port Channel....................................................434
.....................................................................................................................................................434
Assigning an IP Address to a Port Channel................................................................................435
Deleting or Disabling a Port Channel.........................................................................................435
Load Balancing Through Port Channels....................................................................................435
Load-Balancing Method.............................................................................................................436
Changing the Hash Algorithm....................................................................................................436
Bulk Configuration............................................................................................................................438
Interface Range...........................................................................................................................438
Bulk Configuration Examples..................................................................................................... 438
Defining Interface Range Macros.................................................................................................... 440
Define the Interface Range........................................................................................................ 440
Choosing an Interface-Range Macro........................................................................................ 440
Monitoring and Maintaining Interfaces............................................................................................ 441
Maintenance Using TDR............................................................................................................. 442
Non Dell-Qualified Transceivers......................................................................................................442
Splitting QSFP Ports to SFP+ Ports.................................................................................................. 443
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................444
Important Points to Remember................................................................................................. 444
Example Scenarios......................................................................................................................445
Link Dampening................................................................................................................................446
15
Important Points to Remember................................................................................................. 447
Enabling Link Dampening...........................................................................................................447
Link Bundle Monitoring.................................................................................................................... 448
Using Ethernet Pause Frames for Flow Control..............................................................................449
Enabling Pause Frames...............................................................................................................450
Configure the MTU Size on an Interface.........................................................................................450
Port-Pipes..........................................................................................................................................451
Auto-Negotiation on Ethernet Interfaces........................................................................................ 451
Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................452
Set Auto-Negotiation Options................................................................................................... 453
View Advanced Interface Information............................................................................................. 454
Configuring the Interface Sampling Size................................................................................... 455
Dynamic Counters............................................................................................................................456
Clearing Interface Counters....................................................................................................... 456
Enhanced Validation of Interface Ranges........................................................................................457
23 Internet Protocol Security (IPSec).............................................................. 458
Configuring IPSec ............................................................................................................................459
24 IPv4 Routing................................................................................................... 460
IP Addresses......................................................................................................................................460
Implementation Information......................................................................................................460
Configuration Tasks for IP Addresses...............................................................................................461
Assigning IP Addresses to an Interface............................................................................................ 461
Configuring Static Routes................................................................................................................ 462
Configure Static Routes for the Management Interface.................................................................464
IPv4 Path MTU Discovery Overview................................................................................................ 464
Using the Configured Source IP Address in ICMP Messages..........................................................465
Configuring the ICMP Source Interface.....................................................................................465
Configuring the Duration to Establish a TCP Connection..............................................................466
Enabling Directed Broadcast............................................................................................................466
Resolution of Host Names............................................................................................................... 467
Enabling Dynamic Resolution of Host Names................................................................................ 467
Specifying the Local System Domain and a List of Domains......................................................... 468
Configuring DNS with Traceroute................................................................................................... 468
ARP....................................................................................................................................................469
Configuration Tasks for ARP............................................................................................................ 469
Configuring Static ARP Entries......................................................................................................... 470
Enabling Proxy ARP...........................................................................................................................470
Clearing ARP Cache..........................................................................................................................470
ARP Learning via Gratuitous ARP......................................................................................................471
Enabling ARP Learning via Gratuitous ARP.......................................................................................471
16
ARP Learning via ARP Request......................................................................................................... 472
Configuring ARP Retries................................................................................................................... 473
ICMP.................................................................................................................................................. 473
Configuration Tasks for ICMP.......................................................................................................... 473
Enabling ICMP Unreachable Messages............................................................................................474
UDP Helper....................................................................................................................................... 474
Configure UDP Helper................................................................................................................474
Important Points to Remember................................................................................................. 474
Enabling UDP Helper........................................................................................................................ 474
Configuring a Broadcast Address.....................................................................................................475
Configurations Using UDP Helper................................................................................................... 476
UDP Helper with Broadcast-All Addresses...................................................................................... 476
UDP Helper with Subnet Broadcast Addresses................................................................................477
UDP Helper with Configured Broadcast Addresses........................................................................ 478
UDP Helper with No Configured Broadcast Addresses.................................................................. 478
Troubleshooting UDP Helper...........................................................................................................478
25 IPv6 Routing................................................................................................... 480
Protocol Overview............................................................................................................................480
Extended Address Space............................................................................................................ 480
Stateless Autoconfiguration.......................................................................................................480
IPv6 Headers................................................................................................................................481
IPv6 Header Fields...................................................................................................................... 482
Extension Header Fields............................................................................................................. 483
Addressing...................................................................................................................................484
Implementing IPv6 with Dell Networking OS..................................................................................485
ICMPv6..............................................................................................................................................488
Path MTU Discovery.........................................................................................................................488
IPv6 Neighbor Discovery..................................................................................................................489
IPv6 Neighbor Discovery of MTU Packets.................................................................................490
Configuration Task List for IPv6 RDNSS.......................................................................................... 490
Configuring the IPv6 Recursive DNS Server..............................................................................490
Debugging IPv6 RDNSS Information Sent to the Host .............................................................491
Displaying IPv6 RDNSS Information...........................................................................................492
Secure Shell (SSH) Over an IPv6 Transport......................................................................................492
Configuration Tasks for IPv6............................................................................................................493
Adjusting Your CAM-Profile....................................................................................................... 493
Assigning an IPv6 Address to an Interface.................................................................................494
Assigning a Static IPv6 Route..................................................................................................... 494
Configuring Telnet with IPv6......................................................................................................495
SNMP over IPv6...........................................................................................................................495
Showing IPv6 Information..........................................................................................................495
17
Showing an IPv6 Interface..........................................................................................................496
Showing IPv6 Routes.................................................................................................................. 497
Showing the Running-Configuration for an Interface..............................................................498
Clearing IPv6 Routes.................................................................................................................. 498
Configuring IPv6 RA Guard.............................................................................................................. 499
26 iSCSI Optimization.........................................................................................502
iSCSI Optimization Overview........................................................................................................... 502
Monitoring iSCSI Traffic Flows................................................................................................... 504
Application of Quality of Service to iSCSI Traffic Flows............................................................504
Information Monitored in iSCSI Traffic Flows............................................................................504
Detection and Auto-Configuration for Dell EqualLogic Arrays................................................ 505
Configuring Detection and Ports for Dell Compellent Arrays..................................................506
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................506
Enable and Disable iSCSI Optimization..................................................................................... 506
Default iSCSI Optimization Values................................................................................................... 507
iSCSI Optimization Prerequisites..................................................................................................... 508
Configuring iSCSI Optimization.......................................................................................................508
Displaying iSCSI Optimization Information......................................................................................510
27 Intermediate System to Intermediate System...........................................512
IS-IS Protocol Overview....................................................................................................................512
IS-IS Addressing.................................................................................................................................512
Multi-Topology IS-IS.........................................................................................................................513
Transition Mode...........................................................................................................................513
Interface Support.........................................................................................................................514
Adjacencies..................................................................................................................................514
Graceful Restart.................................................................................................................................514
Timers.......................................................................................................................................... 514
Implementation Information............................................................................................................ 515
Configuration Information................................................................................................................516
Configuration Tasks for IS-IS...................................................................................................... 516
Configuring the Distance of a Route..........................................................................................525
Changing the IS-Type.................................................................................................................525
Redistributing IPv4 Routes..........................................................................................................528
Redistributing IPv6 Routes..........................................................................................................528
Configuring Authentication Passwords..................................................................................... 529
Setting the Overload Bit..............................................................................................................530
Debugging IS-IS..........................................................................................................................530
IS-IS Metric Styles............................................................................................................................. 532
Configure Metric Values................................................................................................................... 532
Maximum Values in the Routing Table.......................................................................................532
18
Change the IS-IS Metric Style in One Level Only...................................................................... 532
Leaks from One Level to Another.............................................................................................. 534
Sample Configurations..................................................................................................................... 535
28 Link Aggregation Control Protocol (LACP)...............................................538
Introduction to Dynamic LAGs and LACP....................................................................................... 538
Important Points to Remember................................................................................................. 538
LACP Modes................................................................................................................................ 539
Configuring LACP Commands................................................................................................... 539
LACP Configuration Tasks................................................................................................................540
Creating a LAG............................................................................................................................540
Configuring the LAG Interfaces as Dynamic..............................................................................541
Setting the LACP Long Timeout................................................................................................. 541
Monitoring and Debugging LACP.............................................................................................. 542
Shared LAG State Tracking............................................................................................................... 542
Configuring Shared LAG State Tracking.....................................................................................543
Important Points about Shared LAG State Tracking..................................................................544
LACP Basic Configuration Example................................................................................................. 545
Configure a LAG on ALPHA........................................................................................................ 545
29 Layer 2.............................................................................................................. 553
Manage the MAC Address Table...................................................................................................... 553
Clearing the MAC Address Table................................................................................................553
Setting the Aging Time for Dynamic Entries..............................................................................553
Configuring a Static MAC Address............................................................................................. 554
Displaying the MAC Address Table.............................................................................................554
MAC Learning Limit...........................................................................................................................554
Setting the MAC Learning Limit..................................................................................................555
mac learning-limit Dynamic....................................................................................................... 555
mac learning-limit mac-address-sticky.....................................................................................556
mac learning-limit station-move............................................................................................... 556
mac learning-limit no-station-move.........................................................................................556
Learning Limit Violation Actions.................................................................................................557
Setting Station Move Violation Actions...................................................................................... 557
Recovering from Learning Limit and Station Move Violations..................................................558
NIC Teaming..................................................................................................................................... 558
Configure Redundant Pairs.............................................................................................................. 559
Important Points about Configuring Redundant Pairs.............................................................. 561
Far-End Failure Detection................................................................................................................ 562
FEFD State Changes....................................................................................................................563
Configuring FEFD........................................................................................................................564
Enabling FEFD on an Interface................................................................................................... 565
19
Debugging FEFD......................................................................................................................... 566
30 Link Layer Discovery Protocol (LLDP)........................................................568
802.1AB (LLDP) Overview.................................................................................................................568
Protocol Data Units.................................................................................................................... 568
Optional TLVs....................................................................................................................................569
Management TLVs...................................................................................................................... 569
TIA-1057 (LLDP-MED) Overview.......................................................................................................571
TIA Organizationally Specific TLVs............................................................................................. 572
Configure LLDP.................................................................................................................................576
Related Configuration Tasks.......................................................................................................576
Important Points to Remember..................................................................................................576
LLDP Compatibility......................................................................................................................577
CONFIGURATION versus INTERFACE Configurations.................................................................... 577
Enabling LLDP................................................................................................................................... 578
Disabling and Undoing LLDP......................................................................................................578
Enabling LLDP on Management Ports............................................................................................. 578
Disabling and Undoing LLDP on Management Ports................................................................ 578
Advertising TLVs................................................................................................................................579
Viewing the LLDP Configuration......................................................................................................580
Viewing Information Advertised by Adjacent LLDP Agents.............................................................581
Configuring LLDPDU Intervals......................................................................................................... 582
Configuring Transmit and Receive Mode........................................................................................ 582
Configuring a Time to Live...............................................................................................................583
Debugging LLDP...............................................................................................................................584
Relevant Management Objects........................................................................................................585
31 Microsoft Network Load Balancing............................................................ 591
NLB Unicast Mode Scenario............................................................................................................. 591
NLB Multicast Mode Scenario.......................................................................................................... 592
Limitations of the NLB Feature.........................................................................................................592
Microsoft Clustering......................................................................................................................... 592
Enable and Disable VLAN Flooding .................................................................................................593
Configuring a Switch for NLB ..........................................................................................................593
..................................................................................................................................................... 593
32 Multicast Source Discovery Protocol (MSDP)...........................................595
Protocol Overview............................................................................................................................595
Anycast RP.........................................................................................................................................597
Implementation Information............................................................................................................ 597
Configure Multicast Source Discovery Protocol............................................................................. 597
Related Configuration Tasks.......................................................................................................597
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