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PowerSwitch S4048T-ON

Dell PowerSwitch S4048T-ON User guide

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Dell Configuration Guide for the S4048T–ON
System
9.10(0.1)
May 2016
Rev. A00
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.
© 2016 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are
trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective
companies.
Chapter 1: About this Guide........................................................................................................... 29
Audience............................................................................................................................................................................... 29
Conventions......................................................................................................................................................................... 29
Related Documents.............................................................................................................................................................29
Chapter 2: Configuration Fundamentals..........................................................................................30
Accessing the Command Line........................................................................................................................................... 30
CLI Modes............................................................................................................................................................................ 30
Navigating CLI Modes...................................................................................................................................................32
The do Command................................................................................................................................................................ 34
Undoing Commands............................................................................................................................................................35
Obtaining Help..................................................................................................................................................................... 35
Entering and Editing Commands....................................................................................................................................... 36
Command History................................................................................................................................................................36
Filtering show Command Outputs.....................................................................................................................................37
Multiple Users in Configuration Mode...............................................................................................................................37
Chapter 3: Getting Started............................................................................................................ 39
Console Access....................................................................................................................................................................39
Serial Console.................................................................................................................................................................39
Accessing the CLI Interface and Running Scripts Using SSH.......................................................................................40
Default Configuration...........................................................................................................................................................41
Configuring a Host Name....................................................................................................................................................41
Accessing the System Remotely........................................................................................................................................41
Configure the Management Port IP Address.............................................................................................................42
Configure a Management Route................................................................................................................................. 42
Configuring a Username and Password......................................................................................................................42
Configuring the Enable Password..................................................................................................................................... 42
Configuration File Management........................................................................................................................................ 43
Copy Files to and from the System.............................................................................................................................43
Mounting an NFS File System..................................................................................................................................... 44
Save the Running-Configuration................................................................................................................................. 45
Configure the Overload Bit for a Startup Scenario...................................................................................................45
Viewing Files...................................................................................................................................................................45
Compressing Configuration Files.................................................................................................................................46
Managing the File System..................................................................................................................................................48
Enabling Software Features on Devices Using a Command Option.............................................................................49
View Command History......................................................................................................................................................49
Upgrading Dell Networking OS..........................................................................................................................................50
Verify Software Images Before Installation......................................................................................................................50
Using HTTP for File Transfers............................................................................................................................................51
Chapter 4: Management................................................................................................................ 52
Configuring Privilege Levels...............................................................................................................................................52
Contents
Contents 3
Removing a Command from EXEC Mode..................................................................................................................53
Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................... 53
Allowing Access to CONFIGURATION Mode Commands....................................................................................... 53
Allowing Access to Different Modes...........................................................................................................................53
Applying a Privilege Level to a Username...................................................................................................................55
Applying a Privilege Level to a Terminal Line............................................................................................................. 55
Configuring Logging............................................................................................................................................................55
Audit and Security Logs................................................................................................................................................55
Configuring Logging Format .................................................................................................................................57
Display the Logging Buffer and the Logging Configuration..................................................................................... 57
Setting Up a Secure Connection to a Syslog Server.......................................................................................58
Sending System Messages to a Syslog Server......................................................................................................... 59
Track Login Activity............................................................................................................................................................ 59
Restrictions for Tracking Login Activity..................................................................................................................... 59
Configuring Login Activity Tracking............................................................................................................................ 59
Display Login Statistics................................................................................................................................................. 60
Limit Concurrent Login Sessions........................................................................................................................................61
Restrictions for Limiting the Number of Concurrent Sessions.................................................................................61
Configuring Concurrent Session Limit.........................................................................................................................61
Enabling the System to Clear Existing Sessions........................................................................................................62
Log Messages in the Internal Buffer.................................................................................................................................62
Disabling System Logging...................................................................................................................................................63
Sending System Messages to a Syslog Server............................................................................................................... 63
Configuring a UNIX System as a Syslog Server........................................................................................................ 63
Changing System Logging Settings..................................................................................................................................63
Display the Logging Buffer and the Logging Configuration...........................................................................................64
Configuring a UNIX Logging Facility Level.......................................................................................................................65
Synchronizing Log Messages............................................................................................................................................ 66
Enabling Timestamp on Syslog Messages....................................................................................................................... 66
File Transfer Services......................................................................................................................................................... 66
Enabling the FTP Server...............................................................................................................................................67
Configuring FTP Server Parameters...........................................................................................................................67
Configuring FTP Client Parameters............................................................................................................................ 67
Terminal Lines...................................................................................................................................................................... 68
Denying and Permitting Access to a Terminal Line...................................................................................................68
Configuring Login Authentication for Terminal Lines................................................................................................69
Setting Timeout for EXEC Privilege Mode.......................................................................................................................70
Using Telnet to get to Another Network Device.............................................................................................................70
Lock CONFIGURATION Mode........................................................................................................................................... 71
Restoring the Factory Default Settings.............................................................................................................................71
Restoring Factory Default Environment Variables.................................................................................................... 72
Chapter 5: 802.1X......................................................................................................................... 74
Port-Authentication Process............................................................................................................................................. 75
EAP over RADIUS..........................................................................................................................................................76
Configuring 802.1X.............................................................................................................................................................. 77
Important Points to Remember......................................................................................................................................... 77
Enabling 802.1X....................................................................................................................................................................78
Configuring Request Identity Re-Transmissions............................................................................................................. 79
Configuring a Quiet Period after a Failed Authentication.........................................................................................80
4
Contents
Forcibly Authorizing or Unauthorizing a Port...................................................................................................................80
Re-Authenticating a Port.................................................................................................................................................... 81
Configuring Timeouts..........................................................................................................................................................82
Configuring Dynamic VLAN Assignment with Port Authentication.............................................................................. 83
Guest and Authentication-Fail VLANs..............................................................................................................................84
Configuring a Guest VLAN........................................................................................................................................... 84
Configuring an Authentication-Fail VLAN.................................................................................................................. 84
Chapter 6: Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)............ 86
Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................................................86
Guidelines for Configuring ACL VLAN Groups.................................................................................................................87
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters................................................... 87
Configuring ACL VLAN Groups....................................................................................................................................87
Configuring FP Blocks for VLAN Parameters............................................................................................................88
Viewing CAM Usage........................................................................................................................................................... 88
Allocating FP Blocks for VLAN Processes....................................................................................................................... 90
Chapter 7: Access Control Lists (ACLs)...........................................................................................91
IP Access Control Lists (ACLs)......................................................................................................................................... 92
CAM Usage.................................................................................................................................................................... 92
Implementing ACLs on Dell Networking OS...............................................................................................................93
Important Points to Remember.........................................................................................................................................94
Configuration Task List for Route Maps.....................................................................................................................94
Configuring Match Routes........................................................................................................................................... 96
Configuring Set Conditions...........................................................................................................................................97
Configure a Route Map for Route Redistribution......................................................................................................98
Configure a Route Map for Route Tagging................................................................................................................98
Continue Clause.............................................................................................................................................................99
IP Fragment Handling......................................................................................................................................................... 99
IP Fragments ACL Examples........................................................................................................................................99
Layer 4 ACL Rules Examples......................................................................................................................................100
Configure a Standard IP ACL........................................................................................................................................... 100
Configuring a Standard IP ACL Filter......................................................................................................................... 101
Configure an Extended IP ACL........................................................................................................................................ 102
Configuring Filters with a Sequence Number...........................................................................................................102
Configuring Filters Without a Sequence Number.................................................................................................... 103
Configure Layer 2 and Layer 3 ACLs...............................................................................................................................104
Assign an IP ACL to an Interface..................................................................................................................................... 104
Applying an IP ACL............................................................................................................................................................ 104
Counting ACL Hits....................................................................................................................................................... 105
Configure Ingress ACLs.................................................................................................................................................... 105
Configure Egress ACLs..................................................................................................................................................... 106
Applying Egress Layer 3 ACLs (Control-Plane)....................................................................................................... 107
IP Prefix Lists......................................................................................................................................................................107
Configuration Task List for Prefix Lists.....................................................................................................................108
ACL Resequencing............................................................................................................................................................. 110
Resequencing an ACL or Prefix List............................................................................................................................111
Route Maps......................................................................................................................................................................... 112
Logging of ACL Processes................................................................................................................................................ 112
Contents
5
Guidelines for Configuring ACL Logging.................................................................................................................... 113
Configuring ACL Logging.............................................................................................................................................113
Flow-Based Monitoring Support for ACLs...................................................................................................................... 114
Enabling Flow-Based Monitoring................................................................................................................................ 115
Configuring UDF ACL.........................................................................................................................................................116
Chapter 8: Bidirectional Forwarding Detection (BFD)......................................................................119
How BFD Works................................................................................................................................................................. 119
BFD Packet Format..................................................................................................................................................... 120
BFD Sessions.................................................................................................................................................................121
BFD Three-Way Handshake....................................................................................................................................... 122
Session State Changes................................................................................................................................................123
Important Points to Remember........................................................................................................................................123
Configure BFD....................................................................................................................................................................123
Configure BFD for Physical Ports.............................................................................................................................. 124
Configure BFD for Static Routes............................................................................................................................... 126
Configure BFD for OSPF.............................................................................................................................................128
Configure BFD for OSPFv3........................................................................................................................................ 130
Configure BFD for IS-IS............................................................................................................................................... 131
Configure BFD for BGP...............................................................................................................................................133
Configure BFD for VRRP............................................................................................................................................ 139
Configuring Protocol Liveness....................................................................................................................................142
Troubleshooting BFD................................................................................................................................................... 142
Chapter 9: Border Gateway Protocol IPv4 (BGPv4)........................................................................ 144
Autonomous Systems (AS).............................................................................................................................................. 144
Sessions and Peers............................................................................................................................................................146
Establish a Session.......................................................................................................................................................146
Route Reflectors................................................................................................................................................................ 147
BGP Attributes................................................................................................................................................................... 148
Best Path Selection Criteria........................................................................................................................................148
Weight........................................................................................................................................................................... 150
Local Preference..........................................................................................................................................................150
Multi-Exit Discriminators (MEDs)...............................................................................................................................151
Origin..............................................................................................................................................................................152
AS Path......................................................................................................................................................................... 152
Next Hop.......................................................................................................................................................................153
Multiprotocol BGP............................................................................................................................................................. 153
Implement BGP with Dell Networking OS...................................................................................................................... 153
Advertise IGP Cost as MED for Redistributed Routes............................................................................................154
Ignore Router-ID in Best-Path Calculation............................................................................................................... 154
Four-Byte AS Numbers...............................................................................................................................................154
AS4 Number Representation......................................................................................................................................155
AS Number Migration..................................................................................................................................................156
BGP4 Management Information Base (MIB)........................................................................................................... 157
Important Points to Remember..................................................................................................................................158
Configuration Information.................................................................................................................................................158
BGP Configuration.............................................................................................................................................................159
Enabling BGP................................................................................................................................................................159
6
Contents
Configuring AS4 Number Representations...............................................................................................................162
Configuring Peer Groups.............................................................................................................................................163
Configuring BGP Fast Fall-Over.................................................................................................................................166
Configuring Passive Peering....................................................................................................................................... 167
Maintaining Existing AS Numbers During an AS Migration.....................................................................................168
Allowing an AS Number to Appear in its Own AS Path...........................................................................................168
Enabling Graceful Restart........................................................................................................................................... 169
Enabling Neighbor Graceful Restart.......................................................................................................................... 170
Filtering on an AS-Path Attribute...............................................................................................................................170
Regular Expressions as Filters..................................................................................................................................... 171
Redistributing Routes.................................................................................................................................................. 173
Enabling Additional Paths............................................................................................................................................ 173
Configuring IP Community Lists.................................................................................................................................173
Configuring an IP Extended Community List............................................................................................................174
Filtering Routes with Community Lists......................................................................................................................175
Manipulating the COMMUNITY Attribute.................................................................................................................176
Changing MED Attributes........................................................................................................................................... 177
Changing the LOCAL_PREFERENCE Attribute...................................................................................................... 177
Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes................178
Changing the WEIGHT Attribute................................................................................................................................178
Enabling Multipath........................................................................................................................................................179
Filtering BGP Routes................................................................................................................................................... 179
Filtering BGP Routes Using Route Maps..................................................................................................................180
Filtering BGP Routes Using AS-PATH Information................................................................................................. 180
Configuring BGP Route Reflectors.............................................................................................................................181
Aggregating Routes......................................................................................................................................................181
Configuring BGP Confederations...............................................................................................................................182
Enabling Route Flap Dampening.................................................................................................................................182
Changing BGP Timers................................................................................................................................................. 184
Enabling BGP Neighbor Soft-Reconfiguration.........................................................................................................185
Route Map Continue....................................................................................................................................................186
Enabling MBGP Configurations........................................................................................................................................186
BGP Regular Expression Optimization............................................................................................................................ 187
Debugging BGP.................................................................................................................................................................. 187
Storing Last and Bad PDUs........................................................................................................................................ 187
Capturing PDUs............................................................................................................................................................188
PDU Counters...............................................................................................................................................................189
Sample Configurations...................................................................................................................................................... 189
Chapter 10: Content Addressable Memory (CAM).......................................................................... 196
CAM Allocation...................................................................................................................................................................196
Test CAM Usage................................................................................................................................................................198
View CAM-ACL Settings.................................................................................................................................................. 198
View CAM Usage.............................................................................................................................................................. 200
CAM Optimization.............................................................................................................................................................200
Troubleshoot CAM Profiling............................................................................................................................................ 200
QoS CAM Region Limitation......................................................................................................................................200
Chapter 11: Control Plane Policing (CoPP)..................................................................................... 201
Contents
7
Configure Control Plane Policing.................................................................................................................................... 202
Configuring CoPP for Protocols................................................................................................................................203
Configuring CoPP for CPU Queues..........................................................................................................................204
CoPP for OSPFv3 Packets........................................................................................................................................205
Configuring CoPP for OSPFv3..................................................................................................................................207
Displaying CoPP Configuration .................................................................................................................................208
Chapter 12: Data Center Bridging (DCB)........................................................................................210
Ethernet Enhancements in Data Center Bridging......................................................................................................... 210
Priority-Based Flow Control........................................................................................................................................ 211
Enhanced Transmission Selection..............................................................................................................................212
Data Center Bridging Exchange Protocol (DCBx)...................................................................................................213
Data Center Bridging in a Traffic Flow...................................................................................................................... 213
Enabling Data Center Bridging......................................................................................................................................... 213
DCB Maps and its Attributes......................................................................................................................................214
Data Center Bridging: Default Configuration................................................................................................................. 215
Configuring Priority-Based Flow Control........................................................................................................................215
Configuring Lossless Queues......................................................................................................................................216
Configuring PFC in a DCB Map........................................................................................................................................217
Applying a DCB Map on a Port.........................................................................................................................................218
Configuring PFC without a DCB Map............................................................................................................................. 218
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................................................220
Behavior of Tagged Packets............................................................................................................................................ 221
Configuration Example for DSCP and PFC Priorities....................................................................................................221
Using PFC to Manage Converged Ethernet Traffic..................................................................................................... 222
Configure Enhanced Transmission Selection.................................................................................................................222
ETS Prerequisites and Restrictions...........................................................................................................................222
Creating an ETS Priority Group................................................................................................................................. 222
ETS Operation with DCBx..........................................................................................................................................223
Configuring Bandwidth Allocation for DCBx CIN.................................................................................................... 224
Configuring ETS in a DCB Map................................................................................................................................. 224
Hierarchical Scheduling in ETS Output Policies............................................................................................................ 225
Using ETS to Manage Converged Ethernet Traffic..................................................................................................... 226
Applying DCB Policies in a Switch Stack........................................................................................................................226
Configure a DCBx Operation........................................................................................................................................... 226
DCBx Operation...........................................................................................................................................................226
DCBx Port Roles..........................................................................................................................................................227
DCB Configuration Exchange.................................................................................................................................... 228
Configuration Source Election................................................................................................................................... 228
Propagation of DCB Information...............................................................................................................................229
Auto-Detection and Manual Configuration of the DCBx Version......................................................................... 229
DCBx Example............................................................................................................................................................. 229
DCBx Prerequisites and Restrictions........................................................................................................................230
Configuring DCBx........................................................................................................................................................230
Verifying the DCB Configuration.....................................................................................................................................233
QoS dot1p Traffic Classification and Queue Assignment.............................................................................................242
Configuring the Dynamic Buffer Method.......................................................................................................................243
Sample DCB Configuration.............................................................................................................................................. 244
8
Contents
Chapter 13: Dynamic Host Configuration Protocol (DHCP)............................................................. 247
DHCP Packet Format and Options.................................................................................................................................247
Assign an IP Address using DHCP.................................................................................................................................. 248
Implementation Information.............................................................................................................................................249
Configure the System to be a DHCP Server.................................................................................................................250
Configuring the Server for Automatic Address Allocation.....................................................................................250
Specifying a Default Gateway.................................................................................................................................... 251
Configure a Method of Hostname Resolution..........................................................................................................251
Using DNS for Address Resolution........................................................................................................................... 252
Using NetBIOS WINS for Address Resolution.........................................................................................................252
Creating Manual Binding Entries............................................................................................................................... 252
Debugging the DHCP Server.....................................................................................................................................252
Using DHCP Clear Commands.................................................................................................................................. 253
Configure the System to be a Relay Agent................................................................................................................... 253
Configure the System to be a DHCP Client.................................................................................................................. 254
Configuring the DHCP Client System...................................................................................................................... 255
DHCP Client on a Management Interface............................................................................................................... 256
DHCP Client Operation with Other Features.......................................................................................................... 257
Configure the System for User Port Stacking (Option 230).......................................................................................257
Configure Secure DHCP.................................................................................................................................................. 258
Option 82......................................................................................................................................................................258
DHCP Snooping...........................................................................................................................................................258
Drop DHCP Packets on Snooped VLANs Only........................................................................................................ 261
Dynamic ARP Inspection............................................................................................................................................. 261
Configuring Dynamic ARP Inspection.......................................................................................................................262
Source Address Validation............................................................................................................................................... 263
Enabling IP Source Address Validation..................................................................................................................... 263
DHCP MAC Source Address Validation................................................................................................................... 264
Enabling IP+MAC Source Address Validation..........................................................................................................264
Viewing the Number of SAV Dropped Packets.......................................................................................................264
Clearing the Number of SAV Dropped Packets...................................................................................................... 265
Chapter 14: Equal Cost Multi-Path (ECMP)................................................................................... 266
ECMP for Flow-Based Affinity........................................................................................................................................266
Configuring the Hash Algorithm................................................................................................................................266
Enabling Deterministic ECMP Next Hop..................................................................................................................266
Configuring the Hash Algorithm Seed...................................................................................................................... 267
Link Bundle Monitoring..................................................................................................................................................... 267
Managing ECMP Group Paths.................................................................................................................................. 268
Creating an ECMP Group Bundle............................................................................................................................. 268
Modifying the ECMP Group Threshold.................................................................................................................... 268
RTAG7................................................................................................................................................................................ 269
Flow-based Hashing for ECMP.......................................................................................................................................270
Chapter 15: FIP Snooping.............................................................................................................273
Fibre Channel over Ethernet............................................................................................................................................273
Ensure Robustness in a Converged Ethernet Network............................................................................................... 273
FIP Snooping on Ethernet Bridges..................................................................................................................................274
Contents
9
FIP Snooping in a Switch Stack.......................................................................................................................................276
Using FIP Snooping........................................................................................................................................................... 276
FIP Snooping Prerequisites........................................................................................................................................ 276
Important Points to Remember................................................................................................................................. 276
Enabling the FCoE Transit Feature........................................................................................................................... 277
Enable FIP Snooping on VLANs.................................................................................................................................277
Configure the FC-MAP Value.................................................................................................................................... 278
Configure a Port for a Bridge-to-Bridge Link.......................................................................................................... 278
Configure a Port for a Bridge-to-FCF Link.............................................................................................................. 278
Impact on Other Software Features.........................................................................................................................278
FIP Snooping Restrictions.......................................................................................................................................... 278
Configuring FIP Snooping...........................................................................................................................................279
Displaying FIP Snooping Information.............................................................................................................................. 279
FCoE Transit Configuration Example..............................................................................................................................284
Chapter 16: FIPS Cryptography.................................................................................................... 286
Configuration Tasks.......................................................................................................................................................... 286
Preparing the System.......................................................................................................................................................286
Enabling FIPS Mode..........................................................................................................................................................286
Generating Host-Keys...................................................................................................................................................... 287
Monitoring FIPS Mode Status......................................................................................................................................... 287
Disabling FIPS Mode......................................................................................................................................................... 287
Chapter 17: Force10 Resilient Ring Protocol (FRRP).......................................................................289
Protocol Overview............................................................................................................................................................ 289
Ring Status...................................................................................................................................................................290
Multiple FRRP Rings................................................................................................................................................... 290
Important FRRP Points............................................................................................................................................... 291
Important FRRP Concepts.........................................................................................................................................292
Implementing FRRP.......................................................................................................................................................... 292
FRRP Configuration..........................................................................................................................................................293
Creating the FRRP Group.......................................................................................................................................... 293
Configuring the Control VLAN...................................................................................................................................293
Configuring and Adding the Member VLANs.......................................................................................................... 294
Setting the FRRP Timers........................................................................................................................................... 295
Clearing the FRRP Counters..................................................................................................................................... 295
Viewing the FRRP Configuration.............................................................................................................................. 295
Viewing the FRRP Information..................................................................................................................................295
Troubleshooting FRRP..................................................................................................................................................... 296
Sample Configuration and Topology...............................................................................................................................296
Chapter 18: GARP VLAN Registration Protocol (GVRP).................................................................. 298
Configure GVRP................................................................................................................................................................299
Enabling GVRP Globally....................................................................................................................................................299
Enabling GVRP on a Layer 2 Interface...........................................................................................................................300
Configure GVRP Registration..........................................................................................................................................300
Configure a GARP Timer...................................................................................................................................................301
RPM Redundancy..............................................................................................................................................................301
10
Contents
Chapter 19: High Availability (HA).................................................................................................302
Component Redundancy..................................................................................................................................................302
Automatic and Manual Stack Unit Failover..............................................................................................................302
Synchronization between Management and Standby Units................................................................................. 303
Forcing an Stack Unit Failover...................................................................................................................................303
Specifying an Auto-Failover Limit..............................................................................................................................303
Disabling Auto-Reboot................................................................................................................................................304
Manually Synchronizing Management and Standby Units.....................................................................................304
Pre-Configuring a Stack Unit Slot...................................................................................................................................304
Removing a Provisioned Logical Stack Unit.................................................................................................................. 304
Hitless Behavior.................................................................................................................................................................304
Graceful Restart................................................................................................................................................................305
Software Resiliency.......................................................................................................................................................... 305
Software Component Health Monitoring.................................................................................................................305
System Health Monitoring......................................................................................................................................... 305
Failure and Event Logging..........................................................................................................................................305
Hot-Lock Behavior............................................................................................................................................................306
Chapter 20: Internet Group Management Protocol (IGMP)............................................................. 307
IGMP Protocol Overview................................................................................................................................................. 307
IGMP Version 2............................................................................................................................................................307
IGMP Version 3............................................................................................................................................................308
Configure IGMP.................................................................................................................................................................. 311
Viewing IGMP Enabled Interfaces.................................................................................................................................... 311
Selecting an IGMP Version............................................................................................................................................... 312
Viewing IGMP Groups....................................................................................................................................................... 312
Adjusting Timers.................................................................................................................................................................313
Adjusting Query and Response Timers......................................................................................................................313
Preventing a Host from Joining a Group........................................................................................................................ 313
Enabling IGMP Immediate-Leave.....................................................................................................................................315
IGMP Snooping.................................................................................................................................................................. 316
Configuring IGMP Snooping....................................................................................................................................... 316
Removing a Group-Port Association......................................................................................................................... 316
Disabling Multicast Flooding........................................................................................................................................317
Specifying a Port as Connected to a Multicast Router...........................................................................................317
Configuring the Switch as Querier.............................................................................................................................317
Fast Convergence after MSTP Topology Changes...................................................................................................... 318
Egress Interface Selection (EIS) for HTTP and IGMP Applications............................................................................318
Designating a Multicast Router Interface...................................................................................................................... 324
Chapter 21: Interfaces................................................................................................................. 325
Interface Types..................................................................................................................................................................326
View Basic Interface Information.................................................................................................................................... 326
Resetting an Interface to its Factory Default State......................................................................................................327
Enabling a Physical Interface........................................................................................................................................... 328
Physical Interfaces............................................................................................................................................................ 328
Configuration Task List for Physical Interfaces.......................................................................................................329
Overview of Layer Modes..........................................................................................................................................329
Contents
11
Configuring Layer 2 (Data Link) Mode..................................................................................................................... 329
Configuring Layer 2 (Interface) Mode......................................................................................................................330
Configuring Layer 3 (Network) Mode...................................................................................................................... 330
Configuring Layer 3 (Interface) Mode......................................................................................................................330
Egress Interface Selection (EIS)......................................................................................................................................331
Configuring EIS.............................................................................................................................................................331
Management Interfaces................................................................................................................................................... 332
Configuring Management Interfaces........................................................................................................................ 332
Configuring a Management Interface on an Ethernet Port...................................................................................333
VLAN Interfaces................................................................................................................................................................ 334
Loopback Interfaces......................................................................................................................................................... 334
Null Interfaces....................................................................................................................................................................335
Port Channel Interfaces................................................................................................................................................... 335
Port Channel Definition and Standards.................................................................................................................... 335
Port Channel Benefits.................................................................................................................................................335
Port Channel Implementation.................................................................................................................................... 335
Interfaces in Port Channels........................................................................................................................................336
Configuration Tasks for Port Channel Interfaces....................................................................................................336
Creating a Port Channel............................................................................................................................................. 336
Adding a Physical Interface to a Port Channel........................................................................................................ 337
Reassigning an Interface to a New Port Channel................................................................................................... 338
Configuring the Minimum Oper Up Links in a Port Channel..................................................................................339
Adding or Removing a Port Channel from a VLAN.................................................................................................339
Assigning an IP Address to a Port Channel..............................................................................................................340
Deleting or Disabling a Port Channel.........................................................................................................................340
Load Balancing Through Port Channels................................................................................................................... 340
Changing the Hash Algorithm.....................................................................................................................................341
Bulk Configuration..............................................................................................................................................................341
Interface Range............................................................................................................................................................341
Bulk Configuration Examples..................................................................................................................................... 342
Defining Interface Range Macros....................................................................................................................................343
Define the Interface Range........................................................................................................................................ 343
Choosing an Interface-Range Macro........................................................................................................................343
Monitoring and Maintaining Interfaces...........................................................................................................................344
Maintenance Using TDR.............................................................................................................................................345
Non Dell-Qualified Transceivers...................................................................................................................................... 345
Splitting QSFP Ports to SFP+ Ports.............................................................................................................................. 345
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................... 346
Link Dampening................................................................................................................................................................. 348
Enabling Link Dampening............................................................................................................................................348
Link Bundle Monitoring.....................................................................................................................................................349
Using Ethernet Pause Frames for Flow Control........................................................................................................... 350
Enabling Pause Frames...............................................................................................................................................350
Configure the MTU Size on an Interface........................................................................................................................351
Port-Pipes.......................................................................................................................................................................... 352
Auto-Negotiation on Ethernet Interfaces...................................................................................................................... 352
Setting the Speed and Duplex Mode of Ethernet Interfaces................................................................................ 352
Set Auto-Negotiation Options...................................................................................................................................353
View Advanced Interface Information............................................................................................................................354
Configuring the Interface Sampling Size..................................................................................................................355
12
Contents
Dynamic Counters.............................................................................................................................................................356
Clearing Interface Counters.......................................................................................................................................356
Chapter 22: Internet Protocol Security (IPSec)............................................................................. 357
Configuring IPSec .............................................................................................................................................................357
Chapter 23: IPv4 Routing.............................................................................................................359
IP Addresses...................................................................................................................................................................... 360
Configuration Tasks for IP Addresses............................................................................................................................ 360
Assigning IP Addresses to an Interface..........................................................................................................................360
Configuring Static Routes.................................................................................................................................................361
Configure Static Routes for the Management Interface.............................................................................................362
IPv4 Path MTU Discovery Overview..............................................................................................................................362
Using the Configured Source IP Address in ICMP Messages.....................................................................................363
Configuring the Duration to Establish a TCP Connection............................................................................................363
Enabling Directed Broadcast........................................................................................................................................... 363
Resolution of Host Names............................................................................................................................................... 364
Enabling Dynamic Resolution of Host Names................................................................................................................364
Specifying the Local System Domain and a List of Domains.......................................................................................364
Configuring DNS with Traceroute.................................................................................................................................. 365
ARP.....................................................................................................................................................................................365
Configuration Tasks for ARP........................................................................................................................................... 366
Configuring Static ARP Entries....................................................................................................................................... 366
Enabling Proxy ARP.......................................................................................................................................................... 366
Clearing ARP Cache..........................................................................................................................................................366
ARP Learning via Gratuitous ARP...................................................................................................................................367
Enabling ARP Learning via Gratuitous ARP................................................................................................................... 367
ARP Learning via ARP Request.......................................................................................................................................367
Configuring ARP Retries.................................................................................................................................................. 368
ICMP...................................................................................................................................................................................368
Configuration Tasks for ICMP.........................................................................................................................................368
Enabling ICMP Unreachable Messages..........................................................................................................................369
UDP Helper........................................................................................................................................................................ 369
Enabling UDP Helper........................................................................................................................................................ 369
Configuring a Broadcast Address....................................................................................................................................370
Configurations Using UDP Helper...................................................................................................................................370
UDP Helper with Broadcast-All Addresses.................................................................................................................... 370
UDP Helper with Subnet Broadcast Addresses.............................................................................................................371
UDP Helper with Configured Broadcast Addresses...................................................................................................... 371
UDP Helper with No Configured Broadcast Addresses............................................................................................... 372
Troubleshooting UDP Helper........................................................................................................................................... 372
Chapter 24: IPv6 Routing.............................................................................................................373
Protocol Overview.............................................................................................................................................................373
Extended Address Space............................................................................................................................................373
Stateless Autoconfiguration.......................................................................................................................................373
IPv6 Headers................................................................................................................................................................374
IPv6 Header Fields.......................................................................................................................................................375
Extension Header Fields............................................................................................................................................. 376
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Addressing.................................................................................................................................................................... 377
Implementing IPv6 with Dell Networking OS.................................................................................................................378
ICMPv6...............................................................................................................................................................................379
Path MTU Discovery........................................................................................................................................................ 380
IPv6 Neighbor Discovery..................................................................................................................................................380
IPv6 Neighbor Discovery of MTU Packets...............................................................................................................381
Configuration Task List for IPv6 RDNSS........................................................................................................................381
Configuring the IPv6 Recursive DNS Server............................................................................................................381
Debugging IPv6 RDNSS Information Sent to the Host .........................................................................................382
Displaying IPv6 RDNSS Information......................................................................................................................... 382
Secure Shell (SSH) Over an IPv6 Transport................................................................................................................. 383
Configuration Tasks for IPv6........................................................................................................................................... 383
Adjusting Your CAM-Profile....................................................................................................................................... 383
Assigning an IPv6 Address to an Interface.............................................................................................................. 384
Assigning a Static IPv6 Route....................................................................................................................................384
Configuring Telnet with IPv6..................................................................................................................................... 385
SNMP over IPv6..........................................................................................................................................................385
Displaying IPv6 Information........................................................................................................................................385
Displaying an IPv6 Interface Information..................................................................................................................386
Showing IPv6 Routes..................................................................................................................................................386
Showing the Running-Configuration for an Interface.............................................................................................387
Clearing IPv6 Routes.................................................................................................................................................. 388
Configuring IPv6 RA Guard..............................................................................................................................................388
Configuring IPv6 RA Guard on an Interface............................................................................................................ 389
Monitoring IPv6 RA Guard.........................................................................................................................................390
Chapter 25: iSCSI Optimization.................................................................................................... 391
iSCSI Optimization Overview........................................................................................................................................... 391
Monitoring iSCSI Traffic Flows..................................................................................................................................392
Application of Quality of Service to iSCSI Traffic Flows........................................................................................ 392
Information Monitored in iSCSI Traffic Flows..........................................................................................................393
Detection and Auto-Configuration for Dell EqualLogic Arrays.............................................................................. 393
Configuring Detection and Ports for Dell Compellent Arrays................................................................................ 394
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................. 394
Enable and Disable iSCSI Optimization.....................................................................................................................394
Default iSCSI Optimization Values..................................................................................................................................395
iSCSI Optimization Prerequisites.................................................................................................................................... 395
Configuring iSCSI Optimization.......................................................................................................................................396
Displaying iSCSI Optimization Information.....................................................................................................................397
Chapter 26: Intermediate System to Intermediate System..............................................................399
IS-IS Protocol Overview...................................................................................................................................................399
IS-IS Addressing................................................................................................................................................................ 399
Multi-Topology IS-IS.........................................................................................................................................................400
Transition Mode...........................................................................................................................................................400
Interface Support........................................................................................................................................................ 400
Adjacencies.................................................................................................................................................................. 400
Graceful Restart.................................................................................................................................................................401
Timers............................................................................................................................................................................401
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Implementation Information..............................................................................................................................................401
Configuration Information................................................................................................................................................ 402
Configuration Tasks for IS-IS.....................................................................................................................................402
Configuring the Distance of a Route........................................................................................................................ 409
Changing the IS-Type.................................................................................................................................................409
Redistributing IPv4 Routes.......................................................................................................................................... 411
Redistributing IPv6 Routes......................................................................................................................................... 412
Configuring Authentication Passwords.....................................................................................................................412
Setting the Overload Bit..............................................................................................................................................413
Debugging IS-IS............................................................................................................................................................413
IS-IS Metric Styles............................................................................................................................................................. 414
Configure Metric Values....................................................................................................................................................414
Maximum Values in the Routing Table...................................................................................................................... 415
Change the IS-IS Metric Style in One Level Only.................................................................................................... 415
Leaks from One Level to Another..............................................................................................................................416
Sample Configurations.......................................................................................................................................................417
Chapter 27: Link Aggregation Control Protocol (LACP).................................................................. 420
Introduction to Dynamic LAGs and LACP......................................................................................................................420
Important Points to Remember.................................................................................................................................420
LACP Modes.................................................................................................................................................................421
Configuring LACP Commands....................................................................................................................................421
LACP Configuration Tasks................................................................................................................................................421
Creating a LAG............................................................................................................................................................ 422
Configuring the LAG Interfaces as Dynamic............................................................................................................422
Setting the LACP Long Timeout............................................................................................................................... 422
Monitoring and Debugging LACP..............................................................................................................................423
Shared LAG State Tracking............................................................................................................................................. 423
Configuring Shared LAG State Tracking.................................................................................................................. 424
Important Points about Shared LAG State Tracking..............................................................................................425
LACP Basic Configuration Example................................................................................................................................426
Configure a LAG on ALPHA.......................................................................................................................................426
Chapter 28: Layer 2..................................................................................................................... 435
Manage the MAC Address Table.................................................................................................................................... 435
Clearing the MAC Address Table.............................................................................................................................. 435
Setting the Aging Time for Dynamic Entries............................................................................................................435
Configuring a Static MAC Address........................................................................................................................... 436
Displaying the MAC Address Table........................................................................................................................... 436
MAC Learning Limit.......................................................................................................................................................... 436
Setting the MAC Learning Limit................................................................................................................................ 437
mac learning-limit Dynamic.........................................................................................................................................437
mac learning-limit mac-address-sticky..................................................................................................................... 437
mac learning-limit station-move................................................................................................................................ 437
mac learning-limit no-station-move.......................................................................................................................... 437
Learning Limit Violation Actions.................................................................................................................................438
Setting Station Move Violation Actions....................................................................................................................438
Recovering from Learning Limit and Station Move Violations.............................................................................. 439
NIC Teaming...................................................................................................................................................................... 439
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Configure Redundant Pairs..............................................................................................................................................440
Far-End Failure Detection................................................................................................................................................ 443
FEFD State Changes.................................................................................................................................................. 443
Configuring FEFD........................................................................................................................................................ 444
Enabling FEFD on an Interface.................................................................................................................................. 445
Debugging FEFD..........................................................................................................................................................445
Chapter 29: Link Layer Discovery Protocol (LLDP)......................................................................... 447
802.1AB (LLDP) Overview............................................................................................................................................... 447
Protocol Data Units..................................................................................................................................................... 447
Optional TLVs.................................................................................................................................................................... 448
Management TLVs......................................................................................................................................................448
TIA-1057 (LLDP-MED) Overview...................................................................................................................................450
TIA Organizationally Specific TLVs........................................................................................................................... 450
Configure LLDP.................................................................................................................................................................453
CONFIGURATION versus INTERFACE Configurations............................................................................................... 454
Enabling LLDP....................................................................................................................................................................454
Disabling and Undoing LLDP......................................................................................................................................455
Enabling LLDP on Management Ports........................................................................................................................... 455
Disabling and Undoing LLDP on Management Ports..............................................................................................455
Advertising TLVs............................................................................................................................................................... 455
Viewing the LLDP Configuration.....................................................................................................................................456
Viewing Information Advertised by Adjacent LLDP Agents.........................................................................................457
Configuring LLDPDU Intervals.........................................................................................................................................458
Configuring Transmit and Receive Mode.......................................................................................................................458
Configuring the Time to Live Value................................................................................................................................ 459
Debugging LLDP............................................................................................................................................................... 460
Relevant Management Objects.......................................................................................................................................460
Chapter 30: Microsoft Network Load Balancing............................................................................. 465
Configuring a Switch for NLB ........................................................................................................................................ 466
Enabling a Switch for Multicast NLB........................................................................................................................466
Chapter 31: Multicast Source Discovery Protocol (MSDP).............................................................. 468
Anycast RP........................................................................................................................................................................ 469
Implementation Information............................................................................................................................................. 470
Configure Multicast Source Discovery Protocol........................................................................................................... 470
Related Configuration Tasks...................................................................................................................................... 470
Enable MSDP..................................................................................................................................................................... 474
Manage the Source-Active Cache..................................................................................................................................475
Viewing the Source-Active Cache............................................................................................................................ 475
Limiting the Source-Active Cache............................................................................................................................ 475
Clearing the Source-Active Cache............................................................................................................................475
Enabling the Rejected Source-Active Cache...........................................................................................................476
Accept Source-Active Messages that Fail the RFP Check.........................................................................................476
Specifying Source-Active Messages.............................................................................................................................. 479
Limiting the Source-Active Messages from a Peer......................................................................................................480
Preventing MSDP from Caching a Local Source..........................................................................................................480
Preventing MSDP from Caching a Remote Source..................................................................................................... 480
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Preventing MSDP from Advertising a Local Source..................................................................................................... 481
Logging Changes in Peership States..............................................................................................................................482
Terminating a Peership.....................................................................................................................................................482
Clearing Peer Statistics.................................................................................................................................................... 482
Debugging MSDP..............................................................................................................................................................483
MSDP with Anycast RP................................................................................................................................................... 483
Configuring Anycast RP................................................................................................................................................... 484
Reducing Source-Active Message Flooding............................................................................................................ 485
Specifying the RP Address Used in SA Messages..................................................................................................485
MSDP Sample Configurations......................................................................................................................................... 487
Chapter 32: Multiple Spanning Tree Protocol (MSTP)....................................................................490
Spanning Tree Variations.................................................................................................................................................. 491
Implementation Information........................................................................................................................................491
Configure Multiple Spanning Tree Protocol................................................................................................................... 491
Related Configuration Tasks.......................................................................................................................................491
Enable Multiple Spanning Tree Globally..........................................................................................................................492
Adding and Removing Interfaces.................................................................................................................................... 492
Creating Multiple Spanning Tree Instances................................................................................................................... 492
Influencing MSTP Root Selection................................................................................................................................... 493
Interoperate with Non-Dell Bridges................................................................................................................................ 494
Changing the Region Name or Revision.........................................................................................................................494
Modifying Global Parameters.......................................................................................................................................... 494
Modifying the Interface Parameters...............................................................................................................................495
Configuring an EdgePort..................................................................................................................................................496
Flush MAC Addresses after a Topology Change.......................................................................................................... 497
MSTP Sample Configurations..........................................................................................................................................497
Debugging and Verifying MSTP Configurations........................................................................................................... 500
Chapter 33: Multicast Features.................................................................................................... 502
Enabling IP Multicast........................................................................................................................................................ 502
Implementation Information.............................................................................................................................................502
Multicast Policies...............................................................................................................................................................503
IPv4 Multicast Policies................................................................................................................................................503
Chapter 34: Object Tracking........................................................................................................ 509
Object Tracking Overview............................................................................................................................................... 509
Track Layer 2 Interfaces............................................................................................................................................. 510
Track Layer 3 Interfaces............................................................................................................................................. 510
Track IPv4 and IPv6 Routes.......................................................................................................................................510
Set Tracking Delays......................................................................................................................................................511
VRRP Object Tracking................................................................................................................................................ 512
Object Tracking Configuration......................................................................................................................................... 512
Tracking a Layer 2 Interface.......................................................................................................................................512
Tracking a Layer 3 Interface.......................................................................................................................................513
Track an IPv4/IPv6 Route.......................................................................................................................................... 514
Displaying Tracked Objects...............................................................................................................................................517
Chapter 35: Open Shortest Path First (OSPFv2 and OSPFv3)......................................................... 519
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Protocol Overview.............................................................................................................................................................519
Autonomous System (AS) Areas............................................................................................................................... 519
Area Types................................................................................................................................................................... 520
Networks and Neighbors............................................................................................................................................ 521
Router Types................................................................................................................................................................ 521
Designated and Backup Designated Routers...........................................................................................................522
Link-State Advertisements (LSAs)...........................................................................................................................522
Router Priority and Cost.............................................................................................................................................523
OSPF with Dell Networking OS.......................................................................................................................................524
Graceful Restart.......................................................................................................................................................... 524
Fast Convergence (OSPFv2, IPv4 Only).................................................................................................................525
Multi-Process OSPFv2 with VRF............................................................................................................................. 525
OSPF ACK Packing.....................................................................................................................................................526
Setting OSPF Adjacency with Cisco Routers..........................................................................................................526
Configuration Information................................................................................................................................................ 526
Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................... 527
Configuration Task List for OSPFv3 (OSPF for IPv6)...........................................................................................539
Configuration Task List for OSPFv3 (OSPF for IPv6).................................................................................................550
Enabling IPv6 Unicast Routing................................................................................................................................... 551
Applying cost for OSPFv3.......................................................................................................................................... 551
Assigning IPv6 Addresses on an Interface................................................................................................................551
Assigning Area ID on an Interface..............................................................................................................................551
Assigning OSPFv3 Process ID and Router ID Globally........................................................................................... 552
Assigning OSPFv3 Process ID and Router ID to a VRF......................................................................................... 552
Configuring Stub Areas.............................................................................................................................................. 553
Configuring Passive-Interface................................................................................................................................... 553
Redistributing Routes................................................................................................................................................. 553
Configuring a Default Route...................................................................................................................................... 553
Enabling OSPFv3 Graceful Restart...........................................................................................................................554
OSPFv3 Authentication Using IPsec........................................................................................................................ 556
Troubleshooting OSPFv3............................................................................................................................................561
Chapter 36: Policy-based Routing (PBR)...................................................................................... 563
Overview............................................................................................................................................................................ 563
Implementing PBR............................................................................................................................................................ 564
Configuration Task List for Policy-based Routing........................................................................................................ 564
Create a Redirect List.................................................................................................................................................565
Create a Rule for a Redirect-list................................................................................................................................565
Apply a Redirect-list to an Interface using a Redirect-group................................................................................ 567
Sample Configuration....................................................................................................................................................... 569
Chapter 37: PIM Sparse-Mode (PIM-SM)......................................................................................573
Implementation Information............................................................................................................................................. 573
Protocol Overview............................................................................................................................................................ 573
Requesting Multicast Traffic......................................................................................................................................573
Refuse Multicast Traffic............................................................................................................................................. 574
Send Multicast Traffic................................................................................................................................................ 574
Configuring PIM-SM.........................................................................................................................................................574
Related Configuration Tasks...................................................................................................................................... 574
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Enable PIM-SM................................................................................................................................................................. 575
Configuring S,G Expiry Timers.........................................................................................................................................576
Configuring a Static Rendezvous Point......................................................................................................................... 576
Overriding Bootstrap Router Updates......................................................................................................................577
Configuring a Designated Router.................................................................................................................................... 577
Creating Multicast Boundaries and Domains................................................................................................................. 577
Chapter 38: PIM Source-Specific Mode (PIM-SSM).......................................................................578
Implementation Information............................................................................................................................................. 578
Configure PIM-SSM......................................................................................................................................................... 578
Enabling PIM-SSM............................................................................................................................................................579
Use PIM-SSM with IGMP Version 2 Hosts................................................................................................................... 579
Chapter 39: Port Monitoring........................................................................................................ 582
Important Points to Remember.......................................................................................................................................582
Port Monitoring................................................................................................................................................................. 582
Configuring Port Monitoring............................................................................................................................................584
Configuring Monitor Multicast Queue............................................................................................................................585
Enabling Flow-Based Monitoring.................................................................................................................................... 586
Remote Port Mirroring..................................................................................................................................................... 587
Remote Port Mirroring Example................................................................................................................................587
Configuring Remote Port Mirroring.......................................................................................................................... 588
Displaying Remote-Port Mirroring Configurations..................................................................................................589
Configuring the Sample Remote Port Mirroring..................................................................................................... 590
Encapsulated Remote Port Monitoring..........................................................................................................................592
ERPM Behavior on a typical Dell Networking OS ........................................................................................................594
Chapter 40: Private VLANs (PVLAN)............................................................................................ 596
Private VLAN Concepts...................................................................................................................................................596
Using the Private VLAN Commands...............................................................................................................................597
Configuration Task List.................................................................................................................................................... 598
Creating PVLAN ports................................................................................................................................................598
Creating a Primary VLAN...........................................................................................................................................599
Creating a Community VLAN.................................................................................................................................... 599
Creating an Isolated VLAN.........................................................................................................................................600
Private VLAN Configuration Example............................................................................................................................. 601
Inspecting the Private VLAN Configuration.................................................................................................................. 602
Chapter 41: Per-VLAN Spanning Tree Plus (PVST+).......................................................................604
Protocol Overview............................................................................................................................................................ 604
Implementation Information.............................................................................................................................................605
Configure Per-VLAN Spanning Tree Plus......................................................................................................................605
Enabling PVST+................................................................................................................................................................ 606
Disabling PVST+................................................................................................................................................................606
Influencing PVST+ Root Selection..................................................................................................................................606
Modifying Global PVST+ Parameters.............................................................................................................................608
Modifying Interface PVST+ Parameters........................................................................................................................608
Configuring an EdgePort..................................................................................................................................................609
PVST+ in Multi-Vendor Networks...................................................................................................................................610
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Enabling PVST+ Extend System ID.................................................................................................................................610
PVST+ Sample Configurations......................................................................................................................................... 611
Chapter 42: Quality of Service (QoS)............................................................................................ 613
Implementation Information..............................................................................................................................................615
Port-Based QoS Configurations...................................................................................................................................... 615
Setting dot1p Priorities for Incoming Traffic............................................................................................................ 615
Honoring dot1p Priorities on Ingress Traffic............................................................................................................. 616
Configuring Port-Based Rate Policing.......................................................................................................................616
Configuring Port-Based Rate Shaping...................................................................................................................... 616
Policy-Based QoS Configurations....................................................................................................................................617
Classify Traffic..............................................................................................................................................................617
Create a QoS Policy....................................................................................................................................................620
Create Policy Maps..................................................................................................................................................... 622
DSCP Color Maps............................................................................................................................................................. 625
Creating a DSCP Color Map...................................................................................................................................... 625
Displaying DSCP Color Maps.....................................................................................................................................626
Displaying a DSCP Color Policy Configuration ....................................................................................................... 626
Enabling QoS Rate Adjustment....................................................................................................................................... 627
Enabling Strict-Priority Queueing....................................................................................................................................627
Weighted Random Early Detection.................................................................................................................................628
Creating WRED Profiles............................................................................................................................................. 629
Applying a WRED Profile to Traffic...........................................................................................................................629
Displaying Default and Configured WRED Profiles................................................................................................. 630
Displaying WRED Drop Statistics.............................................................................................................................. 630
Displaying egress-queue Statistics............................................................................................................................630
Pre-Calculating Available QoS CAM Space...................................................................................................................630
Configuring Weights and ECN for WRED ..................................................................................................................... 631
Configuring WRED and ECN Attributes.........................................................................................................................633
Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................ 633
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.................................... 634
Classifying Incoming Packets Using ECN and Color-Marking...............................................................................634
Sample configuration to mark non-ecn packets as “yellow” with single traffic class........................................ 635
Applying Layer 2 Match Criteria on a Layer 3 Interface.............................................................................................. 636
Applying DSCP and VLAN Match Criteria on a Service Queue.................................................................................. 637
Classifying Incoming Packets Using ECN and Color-Marking.....................................................................................638
Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................ 639
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.......................................... 640
Sample configuration to mark non-ecn packets as “yellow” with single traffic class.............................................. 640
Enabling Buffer Statistics Tracking ................................................................................................................................ 641
Chapter 43: Routing Information Protocol (RIP)............................................................................ 644
Protocol Overview............................................................................................................................................................ 644
RIPv1............................................................................................................................................................................. 644
RIPv2.............................................................................................................................................................................644
Implementation Information.............................................................................................................................................644
Configuration Information................................................................................................................................................ 645
Configuration Task List...............................................................................................................................................645
RIP Configuration Example........................................................................................................................................ 650
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