Dell Configuration Guide for the S6000
System
9.14.2.0
April 2019
Rev. A00
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
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.
© 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
Chapter 1: About this Guide.........................................................................................................32
Audience.............................................................................................................................................................................. 32
Conventions........................................................................................................................................................................32
Related Documents...........................................................................................................................................................32
Chapter 2: Configuration Fundamentals...................................................................................... 33
Accessing the Command Line........................................................................................................................................ 33
CLI Modes........................................................................................................................................................................... 33
Navigating CLI Modes................................................................................................................................................ 35
The do Command.............................................................................................................................................................. 37
Undoing Commands..........................................................................................................................................................38
Obtaining Help....................................................................................................................................................................39
Entering and Editing Commands................................................................................................................................... 39
Command History..............................................................................................................................................................40
Filtering show Command Outputs.................................................................................................................................40
Multiple Users in Configuration Mode...........................................................................................................................41
Configuring alias command..............................................................................................................................................41
Viewing alias configuration........................................................................................................................................42
Chapter 3: Getting Started..........................................................................................................43
Console Access..................................................................................................................................................................43
Serial Console............................................................................................................................................................... 43
Default Configuration....................................................................................................................................................... 44
Configuring a Host Name................................................................................................................................................ 44
Accessing the System Remotely................................................................................................................................... 45
Configure the Management Port IP Address....................................................................................................... 45
Configure a Management Route..............................................................................................................................45
Configuring a Username and Password................................................................................................................. 45
Configuring the Enable Password................................................................................................................................. 46
Configuration File Management.....................................................................................................................................47
Copy Files to and from the System.........................................................................................................................47
Mounting an NFS File System.................................................................................................................................. 48
Save the Running-Configuration............................................................................................................................. 49
Configure the Overload Bit for a Startup Scenario............................................................................................ 50
Viewing Files.................................................................................................................................................................50
Managing the File System................................................................................................................................................51
View Command History.................................................................................................................................................... 51
Upgrading Dell EMC Networking OS............................................................................................................................ 51
Using HTTP for File Transfers....................................................................................................................................... 52
Verify Software Images Before Installation................................................................................................................ 52
Chapter 4: Management.............................................................................................................. 54
Configuring Privilege Levels........................................................................................................................................... 54
Removing a Command from EXEC Mode............................................................................................................. 55
Contents
Contents 3
Moving a Command from EXEC Privilege Mode to EXEC Mode.................................................................... 55
Allowing Access to CONFIGURATION Mode Commands................................................................................. 55
Allowing Access to Different Modes...................................................................................................................... 55
Applying a Privilege Level to a Username..............................................................................................................57
Applying a Privilege Level to a Terminal Line........................................................................................................57
Configuring Logging..........................................................................................................................................................57
Audit and Security Logs............................................................................................................................................. 57
Configuring Logging Format .............................................................................................................................59
Setting Up a Secure Connection to a Syslog Server................................................................................ 59
Log Messages in the Internal Buffer............................................................................................................................. 61
Disabling System Logging................................................................................................................................................ 61
Sending System Messages to a Syslog Server...........................................................................................................61
Configuring a UNIX System as a Syslog Server................................................................................................... 61
Track Login Activity..........................................................................................................................................................62
Restrictions for Tracking Login Activity................................................................................................................ 62
Configuring Login Activity Tracking........................................................................................................................62
Display Login Statistics.............................................................................................................................................. 62
Limit Concurrent Login Sessions...................................................................................................................................64
Restrictions for Limiting the Number of Concurrent Sessions........................................................................ 64
Configuring Concurrent Session Limit....................................................................................................................64
Enabling the System to Clear Existing Sessions.................................................................................................. 64
Enabling Secured CLI Mode........................................................................................................................................... 65
Changing System Logging Settings..............................................................................................................................65
Display the Logging Buffer and the Logging Configuration....................................................................................66
Configuring a UNIX Logging Facility Level..................................................................................................................67
Synchronizing Log Messages......................................................................................................................................... 67
Enabling Timestamp on Syslog Messages...................................................................................................................68
File Transfer Services.......................................................................................................................................................68
Enabling the FTP Server............................................................................................................................................69
Configuring FTP Server Parameters...................................................................................................................... 69
Configuring FTP Client Parameters........................................................................................................................ 69
Terminal Lines.................................................................................................................................................................... 70
Denying and Permitting Access to a Terminal Line............................................................................................. 70
Configuring Login Authentication for Terminal Lines.......................................................................................... 71
Setting Timeout for EXEC Privilege Mode..................................................................................................................72
Using Telnet to get to Another Network Device....................................................................................................... 72
Lock CONFIGURATION Mode........................................................................................................................................73
Recovering from a Forgotten Password on the S6000........................................................................................... 73
Recovering from a Forgotten Enable Password........................................................................................................ 74
Recovering from a Failed Start on the S6000........................................................................................................... 74
Restoring the Factory Default Settings.......................................................................................................................75
Restoring Factory Default Environment Variables.............................................................................................. 75
Viewing the Reason for Last System Reboot.............................................................................................................76
Disabling Syslog Messages for SNMP Authentication Failure Events..................................................................77
Chapter 5: 802.1X........................................................................................................................78
Port-Authentication Process.......................................................................................................................................... 79
EAP over RADIUS........................................................................................................................................................80
Configuring 802.1X............................................................................................................................................................ 81
Important Points to Remember...................................................................................................................................... 81
4
Contents
Enabling 802.1X..................................................................................................................................................................82
Configuring dot1x Profile ................................................................................................................................................83
Configuring MAC addresses for a do1x Profile.......................................................................................................... 83
Configuring the Static MAB and MAB Profile ...........................................................................................................84
Configuring Critical VLAN .............................................................................................................................................. 85
Configuring Request Identity Re-Transmissions....................................................................................................... 85
Configuring a Quiet Period after a Failed Authentication..................................................................................86
Forcibly Authorizing or Unauthorizing a Port............................................................................................................. 87
Re-Authenticating a Port................................................................................................................................................ 87
Configuring Timeouts....................................................................................................................................................... 88
Configuring Dynamic VLAN Assignment with Port Authentication...................................................................... 89
Guest and Authentication-Fail VLANs......................................................................................................................... 90
Configuring a Guest VLAN.........................................................................................................................................91
Configuring an Authentication-Fail VLAN.............................................................................................................. 91
Chapter 6: Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 93
Optimizing CAM Utilization During the Attachment of ACLs to VLANs..............................................................93
Guidelines for Configuring ACL VLAN Groups........................................................................................................... 94
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.......................................... 94
Configuring ACL VLAN Groups................................................................................................................................ 94
Configuring FP Blocks for VLAN Parameters.......................................................................................................95
Viewing CAM Usage......................................................................................................................................................... 96
Allocating FP Blocks for VLAN Processes.................................................................................................................. 97
Chapter 7: Access Control Lists (ACLs).......................................................................................99
IP Access Control Lists (ACLs)....................................................................................................................................100
CAM Usage................................................................................................................................................................. 100
Implementing ACLs on Dell EMC Networking OS.............................................................................................. 101
Important Points to Remember....................................................................................................................................102
Configuration Task List for Route Maps.............................................................................................................. 103
Configuring Match Routes...................................................................................................................................... 105
Configuring Set Conditions..................................................................................................................................... 106
Configure a Route Map for Route Redistribution.............................................................................................. 106
Configure a Route Map for Route Tagging......................................................................................................... 107
Continue Clause......................................................................................................................................................... 107
IP Fragment Handling..................................................................................................................................................... 108
IP Fragments ACL Examples...................................................................................................................................108
Layer 4 ACL Rules Examples...................................................................................................................................108
Configure a Standard IP ACL....................................................................................................................................... 109
Configuring a Standard IP ACL Filter.................................................................................................................... 110
Configure an Extended IP ACL...................................................................................................................................... 111
Configuring Filters with a Sequence Number.......................................................................................................111
Configuring Filters Without a Sequence Number............................................................................................... 113
Configure Layer 2 and Layer 3 ACLs........................................................................................................................... 114
Assign an IP ACL to an Interface..................................................................................................................................114
Applying an IP ACL...........................................................................................................................................................115
Counting ACL Hits......................................................................................................................................................115
Configure Ingress ACLs.................................................................................................................................................. 116
Configure Egress ACLs................................................................................................................................................... 116
Contents
5
Applying Egress Layer 3 ACLs (Control-Plane)...................................................................................................117
IP Prefix Lists.....................................................................................................................................................................117
Configuration Task List for Prefix Lists................................................................................................................ 118
ACL Remarks..................................................................................................................................................................... 121
Configuring a Remark................................................................................................................................................ 121
Deleting a Remark......................................................................................................................................................122
ACL Resequencing.......................................................................................................................................................... 122
Resequencing an ACL or Prefix List......................................................................................................................123
Route Maps.......................................................................................................................................................................124
Configuring UDF ACL..................................................................................................................................................... 124
Configuring IP Mirror Access Group........................................................................................................................... 126
Sample Configuration................................................................................................................................................127
Example of viewing IP mirror–access–group applied to an Interface...........................................................127
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 128
How BFD Works...............................................................................................................................................................128
BFD Packet Format...................................................................................................................................................129
BFD Sessions.............................................................................................................................................................. 130
BFD Three-Way Handshake.....................................................................................................................................131
Session State Changes.............................................................................................................................................132
Important Points to Remember....................................................................................................................................132
Configure BFD.................................................................................................................................................................. 132
Configure BFD for Physical Ports..........................................................................................................................133
Configure BFD for Static Routes........................................................................................................................... 134
Configure BFD for IPv6 Static Routes................................................................................................................. 138
Configure BFD for OSPF......................................................................................................................................... 140
Configure BFD for OSPFv3..................................................................................................................................... 144
Configure BFD for IS-IS........................................................................................................................................... 146
Configure BFD for BGP............................................................................................................................................148
Configure BFD for VRRP......................................................................................................................................... 155
Configuring Protocol Liveness................................................................................................................................157
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 158
BGP IP version 4 (BGPv4) Overview......................................................................................................................... 158
BGP Autonomous Systems..................................................................................................................................... 158
AS4 Number Representation.................................................................................................................................. 160
Four-Byte AS Numbers............................................................................................................................................ 162
BGP router ID............................................................................................................................................................. 162
Sessions and Peers....................................................................................................................................................162
Establish a Session.................................................................................................................................................... 162
BGP Attributes for selecting Best Path............................................................................................................... 163
Multiprotocol BGP..................................................................................................................................................... 168
BGP global and address family configuration..................................................................................................... 169
Implement BGP with Dell EMC Networking OS................................................................................................. 170
Configuration Information........................................................................................................................................ 173
Basic BGP configuration tasks..................................................................................................................................... 174
Prerequisite for configuring a BGP network....................................................................................................... 174
Restrictions..................................................................................................................................................................174
Enabling BGP...............................................................................................................................................................174
6
Contents
Enabling four-byte autonomous system numbers..............................................................................................176
Changing a BGP router ID........................................................................................................................................177
Configuring AS4 Number Representations.......................................................................................................... 177
Configuring a BGP peer............................................................................................................................................178
Example-Configuring BGP routing between peers............................................................................................ 179
BGP peer group..........................................................................................................................................................180
Advanced BGP configuration tasks.............................................................................................................................187
Route-refresh and Soft-reconfiguration.............................................................................................................. 187
Aggregating Routes...................................................................................................................................................189
Filtering BGP................................................................................................................................................................191
Configuring BGP Fast Fall-Over.............................................................................................................................196
Configuring Passive Peering................................................................................................................................... 198
Enabling Graceful Restart........................................................................................................................................198
Redistributing Routes............................................................................................................................................... 199
Enabling Additional Paths........................................................................................................................................200
Configuring IP Community Lists.............................................................................................................................201
Configuring an IP Extended Community List..................................................................................................... 202
Configure BGP attributes....................................................................................................................................... 203
Enabling Multipath.................................................................................................................................................... 206
Route Reflectors....................................................................................................................................................... 207
Enabling Route Flap Dampening............................................................................................................................208
Changing BGP keepalive and hold timers............................................................................................................ 210
Setting the extended timer...................................................................................................................................... 211
Enabling or disabling BGP neighbors..................................................................................................................... 211
Route Map Continue................................................................................................................................................. 212
Configuring BGP Confederations...........................................................................................................................213
Configuring a BGP VRF address family................................................................................................................ 213
Maintaining Existing AS Numbers During an AS Migration..............................................................................215
Allowing an AS Number to Appear in its Own AS Path.................................................................................... 215
Enabling MBGP Configurations.............................................................................................................................. 216
MBGP support for IPv6............................................................................................................................................217
Configuring IPv6 MBGP between peers.............................................................................................................. 217
Example-Configuring IPv4 and IPv6 neighbors.................................................................................................. 217
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor................................... 219
BGP Regular Expression Optimization..................................................................................................................221
Debugging BGP.......................................................................................................................................................... 221
Chapter 10: Content Addressable Memory (CAM)......................................................................224
CAM Allocation................................................................................................................................................................ 224
Test CAM Usage............................................................................................................................................................. 226
View CAM Profiles..........................................................................................................................................................226
View CAM-ACL Settings...............................................................................................................................................227
View CAM Usage............................................................................................................................................................ 228
Configuring CAM Threshold and Silence Period..................................................................................................... 229
CAM Optimization.......................................................................................................................................................... 230
Troubleshoot CAM Profiling.........................................................................................................................................230
QoS CAM Region Limitation...................................................................................................................................230
Syslog Error When the Table is Full.......................................................................................................................231
Syslog Warning Upon 90 Percent Utilization of CAM...................................................................................... 231
Syslog Warning for Discrepancies Between Configured Extended Prefixes...............................................231
Contents
7
Unified Forwarding Table (UFT) Modes.....................................................................................................................231
Configuring UFT Modes........................................................................................................................................... 231
Chapter 11: Control Plane Policing (CoPP)................................................................................ 233
Configure Control Plane Policing................................................................................................................................ 234
Configuring CoPP for Protocols............................................................................................................................235
Configuring CoPP for CPU Queues......................................................................................................................236
Protocol to CPU Queue Mapping..........................................................................................................................237
Configuring Protocol to CPU Queue Mapping...................................................................................................238
Displaying CoPP Configuration .............................................................................................................................239
Chapter 12: Data Center Bridging (DCB).................................................................................... 241
Ethernet Enhancements in Data Center Bridging....................................................................................................241
Priority-Based Flow Control................................................................................................................................... 242
Enhanced Transmission Selection.........................................................................................................................243
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 244
Data Center Bridging in a Traffic Flow................................................................................................................ 245
Enabling Data Center Bridging.....................................................................................................................................245
DCB Maps and its Attributes................................................................................................................................. 246
Data Center Bridging: Default Configuration........................................................................................................... 246
Configuring Priority-Based Flow Control.................................................................................................................. 247
Configuring Lossless Queues....................................................................................................................................... 247
Configuring PFC in a DCB Map................................................................................................................................... 249
Configuring PFC without a DCB Map........................................................................................................................250
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................................252
Behavior of Tagged Packets........................................................................................................................................ 253
Configuration Example for DSCP and PFC Priorities.............................................................................................253
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................254
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................255
PFC and ETS Configuration Examples...................................................................................................................... 256
Using PFC to Manage Converged Ethernet Traffic...............................................................................................256
Operations on Untagged Packets...............................................................................................................................256
Generation of PFC for a Priority for Untagged Packets....................................................................................... 257
Configure Enhanced Transmission Selection........................................................................................................... 257
ETS Prerequisites and Restrictions...................................................................................................................... 257
Creating an ETS Priority Group............................................................................................................................. 257
ETS Operation with DCBx...................................................................................................................................... 258
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 258
Configuring ETS in a DCB Map............................................................................................................................. 259
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 260
Using ETS to Manage Converged Ethernet Traffic................................................................................................ 261
Applying DCB Policies in a Switch Stack................................................................................................................... 261
Configure a DCBx Operation........................................................................................................................................ 261
DCBx Operation......................................................................................................................................................... 261
DCBx Port Roles........................................................................................................................................................262
DCB Configuration Exchange.................................................................................................................................263
Configuration Source Election............................................................................................................................... 263
Propagation of DCB Information...........................................................................................................................264
Auto-Detection and Manual Configuration of the DCBx Version..................................................................264
8
Contents
DCBx Example............................................................................................................................................................264
DCBx Prerequisites and Restrictions................................................................................................................... 265
Configuring DCBx..................................................................................................................................................... 265
Verifying the DCB Configuration.................................................................................................................................268
QoS dot1p Traffic Classification and Queue Assignment...................................................................................... 277
Configuring the Dynamic Buffer Method.................................................................................................................. 277
Sample DCB Configuration........................................................................................................................................... 278
Chapter 13: Dynamic Host Configuration Protocol (DHCP).........................................................281
DHCP Packet Format and Options..............................................................................................................................281
Assign an IP Address using DHCP.............................................................................................................................. 283
Implementation Information..........................................................................................................................................283
Configure the System to be a DHCP Server............................................................................................................284
Configuring the Server for Automatic Address Allocation..............................................................................284
Specifying a Default Gateway................................................................................................................................285
Configure a Method of Hostname Resolution....................................................................................................286
Using DNS for Address Resolution....................................................................................................................... 286
Using NetBIOS WINS for Address Resolution................................................................................................... 286
Creating Manual Binding Entries........................................................................................................................... 286
Debugging the DHCP Server..................................................................................................................................287
Using DHCP Clear Commands............................................................................................................................... 287
Configure the System to be a DHCP Client............................................................................................................. 287
Configuring the DHCP Client System.................................................................................................................. 287
DHCP Client on a Management Interface...........................................................................................................289
DHCP Client Operation with Other Features.....................................................................................................289
DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 290
Configuring Route Leaking between VRFs on DHCP Relay Agent...............................................................290
Non-default VRF configuration for DHCPv6 helper address................................................................................291
Configuring DHCP relay source interface..................................................................................................................291
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................292
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................292
Configure the System for User Port Stacking (Option 230)............................................................................... 293
Configure Secure DHCP................................................................................................................................................293
Option 82.................................................................................................................................................................... 294
DHCPv6 relay agent options.................................................................................................................................. 294
DHCP Snooping.........................................................................................................................................................295
Configuring the DHCP secondary-subnet.......................................................................................................... 299
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 299
Dynamic ARP Inspection......................................................................................................................................... 300
Configuring Dynamic ARP Inspection.................................................................................................................. 300
Source Address Validation.............................................................................................................................................301
Enabling IP Source Address Validation................................................................................................................. 301
DHCP MAC Source Address Validation...............................................................................................................302
Enabling IP+MAC Source Address Validation.................................................................................................... 302
Viewing the Number of SAV Dropped Packets................................................................................................. 303
Clearing the Number of SAV Dropped Packets.................................................................................................303
Chapter 14: Equal Cost Multi-Path (ECMP)............................................................................... 304
ECMP for Flow-Based Affinity.................................................................................................................................... 304
Contents
9
Configuring the Hash Algorithm............................................................................................................................ 304
Enabling Deterministic ECMP Next Hop............................................................................................................. 304
Configuring the Hash Algorithm Seed................................................................................................................. 305
Link Bundle Monitoring..................................................................................................................................................305
Managing ECMP Group Paths...............................................................................................................................306
Creating an ECMP Group Bundle..........................................................................................................................306
Modifying the ECMP Group Threshold................................................................................................................306
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table.............................. 307
Support for ECMP in host table............................................................................................................................ 307
Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ....................................................................308
RTAG7............................................................................................................................................................................... 308
Flow-based Hashing for ECMP................................................................................................................................... 309
Chapter 15: FIP Snooping...........................................................................................................312
Fibre Channel over Ethernet.........................................................................................................................................312
Ensure Robustness in a Converged Ethernet Network..........................................................................................312
FIP Snooping on Ethernet Bridges.............................................................................................................................. 313
FIP Snooping in a Switch Stack................................................................................................................................... 315
Using FIP Snooping......................................................................................................................................................... 315
FIP Snooping Prerequisites..................................................................................................................................... 315
Important Points to Remember..............................................................................................................................315
Enabling the FCoE Transit Feature....................................................................................................................... 316
Enable FIP Snooping on VLANs..............................................................................................................................316
Configure the FC-MAP Value................................................................................................................................. 317
Configure a Port for a Bridge-to-Bridge Link......................................................................................................317
Configure a Port for a Bridge-to-FCF Link..........................................................................................................317
Impact on Other Software Features..................................................................................................................... 317
FIP Snooping Restrictions........................................................................................................................................318
Configuring FIP Snooping........................................................................................................................................ 318
Displaying FIP Snooping Information.......................................................................................................................... 318
FCoE Transit Configuration Example......................................................................................................................... 323
Chapter 16: Flex Hash and Optimized Boot-Up...........................................................................325
Flex Hash Capability Overview.................................................................................................................................... 325
Configuring the Flex Hash Mechanism......................................................................................................................325
Configuring Fast Boot and LACP Fast Switchover................................................................................................ 326
Optimizing the Boot Time............................................................................................................................................. 326
Interoperation of Applications with Fast Boot and System States.....................................................................327
RDMA Over Converged Ethernet (RoCE) Overview............................................................................................. 330
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces................................................................................. 330
Chapter 17: Force10 Resilient Ring Protocol (FRRP)..................................................................332
Protocol Overview.......................................................................................................................................................... 332
Ring Status................................................................................................................................................................. 333
Multiple FRRP Rings.................................................................................................................................................333
Important FRRP Points............................................................................................................................................334
Important FRRP Concepts......................................................................................................................................335
Implementing FRRP........................................................................................................................................................335
FRRP Configuration....................................................................................................................................................... 336
10
Contents
Creating the FRRP Group....................................................................................................................................... 336
Configuring the Control VLAN...............................................................................................................................336
Configuring and Adding the Member VLANs......................................................................................................337
Setting the FRRP Timers........................................................................................................................................ 338
Clearing the FRRP Counters.................................................................................................................................. 338
Viewing the FRRP Configuration...........................................................................................................................338
Viewing the FRRP Information.............................................................................................................................. 338
Troubleshooting FRRP...................................................................................................................................................339
Sample Configuration and Topology.......................................................................................................................... 339
FRRP Support on VLT................................................................................................................................................... 340
Chapter 18: GARP VLAN Registration Protocol (GVRP)............................................................. 343
Configure GVRP.............................................................................................................................................................. 344
Enabling GVRP Globally.................................................................................................................................................344
Enabling GVRP on a Layer 2 Interface...................................................................................................................... 345
Configure GVRP Registration...................................................................................................................................... 345
Configure a GARP Timer...............................................................................................................................................346
Chapter 19: Internet Group Management Protocol (IGMP).........................................................347
IGMP Protocol Overview.............................................................................................................................................. 347
IGMP Version 2..........................................................................................................................................................347
IGMP Version 3..........................................................................................................................................................349
Configure IGMP............................................................................................................................................................... 351
Viewing IGMP Enabled Interfaces.............................................................................................................................. 352
Selecting an IGMP Version........................................................................................................................................... 352
Viewing IGMP Groups....................................................................................................................................................353
Viewing IGMP Snooping Groups................................................................................................................................. 353
Adjusting Timers..............................................................................................................................................................353
Adjusting Query and Response Timers................................................................................................................ 353
Enabling IGMP Immediate-Leave................................................................................................................................ 354
IGMP Snooping................................................................................................................................................................354
Configuring IGMP Snooping...................................................................................................................................355
Removing a Group-Port Association....................................................................................................................355
Disabling Multicast Flooding...................................................................................................................................356
Specifying a Port as Connected to a Multicast Router................................................................................... 356
Configuring the Switch as Querier....................................................................................................................... 356
Fast Convergence after MSTP Topology Changes................................................................................................ 357
Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................................... 357
Designating a Multicast Router Interface................................................................................................................. 364
Chapter 20: Interfaces.............................................................................................................. 365
Interface Types............................................................................................................................................................... 366
View Basic Interface Information................................................................................................................................366
Resetting an Interface to its Factory Default State...............................................................................................368
Enabling a Physical Interface....................................................................................................................................... 368
Physical Interfaces......................................................................................................................................................... 369
Configuration Task List for Physical Interfaces.................................................................................................369
40G to 1G Breakout Cable Adaptor...................................................................................................................... 369
Overview of Layer Modes....................................................................................................................................... 370
Contents
11
Configuring Layer 2 (Data Link) Mode................................................................................................................ 370
Configuring Layer 2 (Interface) Mode................................................................................................................. 370
Configuring Layer 3 (Network) Mode...................................................................................................................371
Configuring Layer 3 (Interface) Mode..................................................................................................................371
Automatic recovery of an Err-disabled interface.................................................................................................... 372
Configuring an automatic recovery for an Err-disabled interface.................................................................372
Egress Interface Selection (EIS)................................................................................................................................. 373
Configuring EIS.......................................................................................................................................................... 373
Management Interfaces.................................................................................................................................................374
Configuring Management Interfaces....................................................................................................................374
Configuring a Management Interface on an Ethernet Port............................................................................ 375
VLAN Interfaces.............................................................................................................................................................. 376
Loopback Interfaces.......................................................................................................................................................376
Null Interfaces.................................................................................................................................................................. 377
Port Channel Interfaces.................................................................................................................................................377
Port Channel Definition and Standards................................................................................................................377
Port Channel Benefits.............................................................................................................................................. 377
Port Channel Implementation.................................................................................................................................378
Interfaces in Port Channels.................................................................................................................................... 378
Configuration Tasks for Port Channel Interfaces..............................................................................................378
Creating a Port Channel.......................................................................................................................................... 379
Adding a Physical Interface to a Port Channel.................................................................................................. 379
Reassigning an Interface to a New Port Channel............................................................................................. 380
Configuring the Minimum Oper Up Links in a Port Channel............................................................................381
Adding or Removing a Port Channel from a VLAN............................................................................................381
Assigning an IP Address to a Port Channel........................................................................................................ 382
Deleting or Disabling a Port Channel....................................................................................................................382
Load Balancing Through Port Channels.............................................................................................................. 383
Changing the Hash Algorithm................................................................................................................................ 383
Bulk Configuration.......................................................................................................................................................... 384
Interface Range......................................................................................................................................................... 384
Bulk Configuration Examples..................................................................................................................................384
Defining Interface Range Macros............................................................................................................................... 386
Define the Interface Range.................................................................................................................................... 386
Choosing an Interface-Range Macro................................................................................................................... 386
Monitoring and Maintaining Interfaces......................................................................................................................386
Maintenance Using TDR.......................................................................................................................................... 387
Non Dell-Qualified Transceivers.................................................................................................................................. 388
Splitting 40G Ports without Reload............................................................................................................................388
Splitting QSFP Ports to SFP+ Ports..........................................................................................................................390
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port...............................................................................391
Configuring wavelength for 10–Gigabit SFP+ optics............................................................................................ 395
Link Dampening............................................................................................................................................................... 395
Enabling Link Dampening........................................................................................................................................ 398
Link Bundle Monitoring..................................................................................................................................................399
Using Ethernet Pause Frames for Flow Control......................................................................................................399
Enabling Pause Frames............................................................................................................................................400
Configure the MTU Size on an Interface..................................................................................................................400
Port-Pipes......................................................................................................................................................................... 401
Auto-Negotiation on Ethernet Interfaces..................................................................................................................401
12
Contents
Setting the Speed of Ethernet Interfaces.......................................................................................................... 402
Set Auto-Negotiation Options............................................................................................................................... 403
View Advanced Interface Information....................................................................................................................... 404
Configuring the Interface Sampling Size.............................................................................................................404
Configuring the Traffic Sampling Size Globally....................................................................................................... 405
Dynamic Counters.......................................................................................................................................................... 406
Clearing Interface Counters................................................................................................................................... 407
Compressing Configuration Files.................................................................................................................................407
Chapter 21: IPv4 Routing........................................................................................................... 410
IP Addresses...................................................................................................................................................................... 411
Configuration Tasks for IP Addresses......................................................................................................................... 411
Assigning IP Addresses to an Interface.......................................................................................................................411
Configuring Static Routes............................................................................................................................................. 412
Configure Static Routes for the Management Interface....................................................................................... 413
Using the Configured Source IP Address in ICMP Messages...............................................................................413
Configuring the Duration to Establish a TCP Connection..................................................................................... 414
Enabling Directed Broadcast.........................................................................................................................................414
Resolution of Host Names.............................................................................................................................................414
Enabling Dynamic Resolution of Host Names...........................................................................................................415
Specifying the Local System Domain and a List of Domains................................................................................ 415
Configuring DNS with Traceroute............................................................................................................................... 416
ARP..................................................................................................................................................................................... 416
Configuration Tasks for ARP........................................................................................................................................ 416
Configuring Static ARP Entries.................................................................................................................................... 417
Enabling Proxy ARP.........................................................................................................................................................417
Clearing ARP Cache........................................................................................................................................................ 417
ARP Learning via Gratuitous ARP................................................................................................................................418
Enabling ARP Learning via Gratuitous ARP...............................................................................................................418
ARP Learning via ARP Request....................................................................................................................................418
Configuring ARP Retries................................................................................................................................................ 419
ICMP................................................................................................................................................................................... 419
Configuration Tasks for ICMP...................................................................................................................................... 419
Enabling ICMP Unreachable Messages..................................................................................................................... 420
ICMP Redirects............................................................................................................................................................... 420
UDP Helper........................................................................................................................................................................421
Enabling UDP Helper.......................................................................................................................................................421
Configuring a Broadcast Address................................................................................................................................422
Configurations Using UDP Helper...............................................................................................................................422
UDP Helper with Broadcast-All Addresses...............................................................................................................422
UDP Helper with Subnet Broadcast Addresses.......................................................................................................423
UDP Helper with Configured Broadcast Addresses............................................................................................... 423
UDP Helper with No Configured Broadcast Addresses.........................................................................................424
Troubleshooting UDP Helper........................................................................................................................................424
Chapter 22: IPv6 Routing.......................................................................................................... 425
Protocol Overview..........................................................................................................................................................425
Extended Address Space........................................................................................................................................ 425
Stateless Autoconfiguration................................................................................................................................... 425
Contents
13
IPv6 Headers..............................................................................................................................................................426
Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support...............................................................426
IPv6 Header Fields.................................................................................................................................................... 427
Extension Header Fields.......................................................................................................................................... 429
Addressing.................................................................................................................................................................. 430
Implementing IPv6 with Dell EMC Networking OS..................................................................................................431
ICMPv6..............................................................................................................................................................................432
Path MTU discovery.......................................................................................................................................................433
IPv6 Neighbor Discovery...............................................................................................................................................433
IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 434
Configuring the IPv6 Recursive DNS Server......................................................................................................434
Debugging IPv6 RDNSS Information Sent to the Host .................................................................................. 435
Displaying IPv6 RDNSS Information.....................................................................................................................435
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................436
Configuration Tasks for IPv6....................................................................................................................................... 436
Adjusting Your CAM-Profile....................................................................................................................................436
Assigning an IPv6 Address to an Interface......................................................................................................... 437
Assigning a Static IPv6 Route................................................................................................................................437
Configuring Telnet with IPv6................................................................................................................................. 438
SNMP over IPv6........................................................................................................................................................438
Displaying IPv6 Information.................................................................................................................................... 438
Displaying an IPv6 Interface Information............................................................................................................ 439
Showing IPv6 Routes...............................................................................................................................................439
Showing the Running-Configuration for an Interface......................................................................................440
Clearing IPv6 Routes.................................................................................................................................................441
Disabling ND Entry Timeout.................................................................................................................................... 441
Configuring IPv6 RA Guard........................................................................................................................................... 441
Configuring IPv6 RA Guard on an Interface....................................................................................................... 443
Monitoring IPv6 RA Guard......................................................................................................................................443
Chapter 23: iSCSI Optimization................................................................................................. 444
iSCSI Optimization Overview....................................................................................................................................... 444
Monitoring iSCSI Traffic Flows..............................................................................................................................445
Application of Quality of Service to iSCSI Traffic Flows.................................................................................446
Information Monitored in iSCSI Traffic Flows....................................................................................................446
Detection and Auto-Configuration for Dell EqualLogic Arrays.......................................................................447
Configuring Detection and Ports for Dell Compellent Arrays.........................................................................447
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer...........................................................447
Enable and Disable iSCSI Optimization................................................................................................................ 448
Default iSCSI Optimization Values..............................................................................................................................448
iSCSI Optimization Prerequisites................................................................................................................................ 449
Configuring iSCSI Optimization................................................................................................................................... 449
Displaying iSCSI Optimization Information................................................................................................................ 451
Chapter 24: Intermediate System to Intermediate System.........................................................453
IS-IS Protocol Overview................................................................................................................................................453
IS-IS Addressing..............................................................................................................................................................453
Multi-Topology IS-IS...................................................................................................................................................... 454
Transition Mode.........................................................................................................................................................454
14
Contents
Interface Support......................................................................................................................................................454
Adjacencies.................................................................................................................................................................454
Graceful Restart..............................................................................................................................................................455
Timers.......................................................................................................................................................................... 455
Implementation Information......................................................................................................................................... 455
Configuration Information.............................................................................................................................................456
Configuration Tasks for IS-IS.................................................................................................................................456
Configuring the Distance of a Route....................................................................................................................463
Changing the IS-Type.............................................................................................................................................. 463
Redistributing IPv4 Routes..................................................................................................................................... 465
Redistributing IPv6 Routes.....................................................................................................................................466
Configuring Authentication Passwords................................................................................................................467
Setting the Overload Bit..........................................................................................................................................467
Debugging IS-IS.........................................................................................................................................................468
IS-IS Metric Styles..........................................................................................................................................................468
Configure Metric Values................................................................................................................................................469
Maximum Values in the Routing Table.................................................................................................................469
Change the IS-IS Metric Style in One Level Only............................................................................................. 469
Leaks from One Level to Another......................................................................................................................... 470
Sample Configurations....................................................................................................................................................471
Chapter 25: In-Service Software Upgrade................................................................................. 474
ISSU Introduction............................................................................................................................................................474
Fastboot 2.0 (Zero Loss Upgrade)............................................................................................................................. 474
L2 ISSU..............................................................................................................................................................................475
L3 ISSU..............................................................................................................................................................................475
CoPP.................................................................................................................................................................................. 475
Mirroring flow control packets.....................................................................................................................................476
PFC.....................................................................................................................................................................................476
QoS.....................................................................................................................................................................................476
Tunnel Configuration......................................................................................................................................................476
Chapter 26: Link Aggregation Control Protocol (LACP)............................................................. 477
Introduction to Dynamic LAGs and LACP................................................................................................................. 477
Important Points to Remember..............................................................................................................................477
LACP Modes...............................................................................................................................................................478
Configuring LACP Commands................................................................................................................................478
LACP Configuration Tasks............................................................................................................................................478
Creating a LAG...........................................................................................................................................................479
Configuring the LAG Interfaces as Dynamic.......................................................................................................479
Setting the LACP Long Timeout........................................................................................................................... 479
Monitoring and Debugging LACP..........................................................................................................................480
Shared LAG State Tracking..........................................................................................................................................480
Configuring Shared LAG State Tracking..............................................................................................................481
Important Points about Shared LAG State Tracking........................................................................................482
LACP Basic Configuration Example............................................................................................................................483
Configure a LAG on ALPHA....................................................................................................................................483
Chapter 27: Layer 2....................................................................................................................491
Contents
15
Manage the MAC Address Table................................................................................................................................. 491
Clearing the MAC Address Table........................................................................................................................... 491
Setting the Aging Time for Dynamic Entries.......................................................................................................491
Configuring a Static MAC Address.......................................................................................................................492
Displaying the MAC Address Table.......................................................................................................................492
MAC Learning Limit........................................................................................................................................................492
Setting the MAC Learning Limit............................................................................................................................ 493
mac learning-limit Dynamic..................................................................................................................................... 493
mac learning-limit mac-address-sticky................................................................................................................ 493
mac learning-limit station-move............................................................................................................................ 493
mac learning-limit no-station-move......................................................................................................................494
Learning Limit Violation Actions............................................................................................................................ 494
Setting Station Move Violation Actions...............................................................................................................494
Recovering from Learning Limit and Station Move Violations.......................................................................495
Disabling MAC Address Learning on the System.............................................................................................. 495
Enabling port security.............................................................................................................................................. 495
NIC Teaming.....................................................................................................................................................................496
Configure Redundant Pairs...........................................................................................................................................497
Far-End Failure Detection.............................................................................................................................................500
FEFD State Changes................................................................................................................................................500
Configuring FEFD...................................................................................................................................................... 501
Enabling FEFD on an Interface.............................................................................................................................. 502
Debugging FEFD....................................................................................................................................................... 503
Chapter 28: Link Layer Discovery Protocol (LLDP).................................................................... 504
802.1AB (LLDP) Overview............................................................................................................................................504
Protocol Data Units.................................................................................................................................................. 504
Optional TLVs.................................................................................................................................................................. 506
Management TLVs................................................................................................................................................... 506
TIA-1057 (LLDP-MED) Overview............................................................................................................................... 507
TIA Organizationally Specific TLVs.......................................................................................................................508
Configure LLDP.................................................................................................................................................................511
CONFIGURATION versus INTERFACE Configurations..........................................................................................512
Enabling LLDP.................................................................................................................................................................. 512
Disabling and Undoing LLDP................................................................................................................................... 512
Enabling LLDP on Management Ports........................................................................................................................513
Disabling and Undoing LLDP on Management Ports........................................................................................ 513
Advertising TLVs..............................................................................................................................................................513
Storing and Viewing Unrecognized LLDP TLVs....................................................................................................... 514
Viewing the LLDP Configuration................................................................................................................................. 515
Viewing Information Advertised by Adjacent LLDP Neighbors............................................................................ 516
Examples of Viewing Information Advertised by Neighbors........................................................................... 516
Configuring LLDPDU Intervals......................................................................................................................................517
Configuring LLDP Notification Interval...................................................................................................................... 518
Configuring Transmit and Receive Mode.................................................................................................................. 518
Configuring the Time to Live Value.............................................................................................................................519
Debugging LLDP............................................................................................................................................................. 520
Relevant Management Objects....................................................................................................................................521
16
Contents
Chapter 29: Microsoft Network Load Balancing.........................................................................525
Configuring a Switch for NLB .................................................................................................................................... 526
Enabling a Switch for Multicast NLB................................................................................................................... 527
Chapter 30: Multicast Source Discovery Protocol (MSDP)........................................................ 528
Anycast RP.......................................................................................................................................................................529
Implementation Information......................................................................................................................................... 530
Configure Multicast Source Discovery Protocol..................................................................................................... 530
Related Configuration Tasks.................................................................................................................................. 530
Enable MSDP................................................................................................................................................................... 534
Manage the Source-Active Cache............................................................................................................................. 535
Viewing the Source-Active Cache........................................................................................................................535
Limiting the Source-Active Cache........................................................................................................................535
Clearing the Source-Active Cache....................................................................................................................... 535
Enabling the Rejected Source-Active Cache..................................................................................................... 536
Accept Source-Active Messages that Fail the RFP Check..................................................................................536
Specifying Source-Active Messages..........................................................................................................................539
Limiting the Source-Active Messages from a Peer................................................................................................540
Preventing MSDP from Caching a Local Source.................................................................................................... 540
Preventing MSDP from Caching a Remote Source................................................................................................ 541
Preventing MSDP from Advertising a Local Source............................................................................................... 541
Logging Changes in Peership States......................................................................................................................... 542
Terminating a Peership..................................................................................................................................................542
Clearing Peer Statistics................................................................................................................................................. 542
Debugging MSDP............................................................................................................................................................543
MSDP with Anycast RP.................................................................................................................................................543
Configuring Anycast RP................................................................................................................................................ 544
Reducing Source-Active Message Flooding.......................................................................................................545
Specifying the RP Address Used in SA Messages............................................................................................545
MSDP Sample Configurations......................................................................................................................................547
Chapter 31: Multiple Spanning Tree Protocol (MSTP)............................................................... 550
Spanning Tree Variations...............................................................................................................................................551
Implementation Information.................................................................................................................................... 551
Configure Multiple Spanning Tree Protocol..............................................................................................................551
Related Configuration Tasks...................................................................................................................................551
Enable Multiple Spanning Tree Globally.................................................................................................................... 552
Adding and Removing Interfaces................................................................................................................................ 552
Creating Multiple Spanning Tree Instances..............................................................................................................552
Influencing MSTP Root Selection...............................................................................................................................553
Interoperate with Non-Dell Bridges............................................................................................................................554
Changing the Region Name or Revision....................................................................................................................554
Modifying Global Parameters.......................................................................................................................................554
Modifying the Interface Parameters..........................................................................................................................555
Setting STP path cost as constant............................................................................................................................ 556
Configuring an EdgePort...............................................................................................................................................557
Flush MAC Addresses after a Topology Change.....................................................................................................557
MSTP Sample Configurations...................................................................................................................................... 557
Contents
17
Debugging and Verifying MSTP Configurations.......................................................................................................561
Chapter 32: Multicast Features................................................................................................. 563
Enabling IP Multicast..................................................................................................................................................... 563
Implementation Information......................................................................................................................................... 563
Multicast Policies............................................................................................................................................................ 564
IPv4 Multicast Policies.............................................................................................................................................564
Understanding Multicast Traceroute (mtrace)........................................................................................................ 571
Printing Multicast Traceroute (mtrace) Paths.........................................................................................................571
Supported Error Codes..................................................................................................................................................573
mtrace Scenarios............................................................................................................................................................ 574
Chapter 33: Object Tracking..................................................................................................... 580
Object Tracking Overview............................................................................................................................................ 580
Track Layer 2 Interfaces.......................................................................................................................................... 581
Track Layer 3 Interfaces.......................................................................................................................................... 581
Track IPv4 and IPv6 Routes....................................................................................................................................581
Set Tracking Delays..................................................................................................................................................582
VRRP Object Tracking............................................................................................................................................. 583
Object Tracking Configuration.....................................................................................................................................583
Tracking a Layer 2 Interface.................................................................................................................................. 583
Tracking a Layer 3 Interface.................................................................................................................................. 584
Track an IPv4/IPv6 Route...................................................................................................................................... 585
Displaying Tracked Objects.......................................................................................................................................... 588
Chapter 34: Open Shortest Path First (OSPFv2 and OSPFv3)................................................... 590
Protocol Overview..........................................................................................................................................................590
Autonomous System (AS) Areas...........................................................................................................................590
Area Types...................................................................................................................................................................591
Networks and Neighbors.........................................................................................................................................592
Router Types..............................................................................................................................................................592
Designated and Backup Designated Routers..................................................................................................... 593
Link-State Advertisements (LSAs).......................................................................................................................593
Router Priority and Cost......................................................................................................................................... 594
OSPF with Dell EMC Networking OS........................................................................................................................ 595
Graceful Restart........................................................................................................................................................595
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................ 596
Multi-Process OSPFv2 with VRF..........................................................................................................................597
RFC-2328 Compliant OSPF Flooding...................................................................................................................597
OSPF ACK Packing...................................................................................................................................................598
Setting OSPF Adjacency with Cisco Routers.................................................................................................... 598
Configuration Information.............................................................................................................................................599
Configuration Task List for OSPFv2 (OSPF for IPv4).....................................................................................599
OSPFv3 NSSA...................................................................................................................................................................611
Configuration Task List for OSPFv3 (OSPF for IPv6)............................................................................................ 611
Enabling IPv6 Unicast Routing............................................................................................................................... 612
Applying cost for OSPFv3....................................................................................................................................... 612
Assigning IPv6 Addresses on an Interface...........................................................................................................613
Assigning Area ID on an Interface..........................................................................................................................613
18
Contents
Assigning OSPFv3 Process ID and Router ID Globally......................................................................................613
Assigning OSPFv3 Process ID and Router ID to a VRF....................................................................................614
Configuring Stub Areas............................................................................................................................................ 614
Configuring Passive-Interface................................................................................................................................ 614
Redistributing Routes............................................................................................................................................... 615
Configuring a Default Route................................................................................................................................... 615
Enabling OSPFv3 Graceful Restart....................................................................................................................... 615
OSPFv3 Authentication Using IPsec.....................................................................................................................617
Troubleshooting OSPFv3........................................................................................................................................ 623
MIB Support for OSPFv3..............................................................................................................................................624
Viewing the OSPFv3 MIB........................................................................................................................................624
Chapter 35: Policy-based Routing (PBR)...................................................................................625
Overview...........................................................................................................................................................................625
Implementing PBR.......................................................................................................................................................... 626
Configuration Task List for Policy-based Routing.................................................................................................. 626
Create a Redirect List.............................................................................................................................................. 627
Create a Rule for a Redirect-list............................................................................................................................627
Apply a Redirect-list to an Interface using a Redirect-group.........................................................................629
Sample Configuration..................................................................................................................................................... 631
Chapter 36: PIM Sparse-Mode (PIM-SM)..................................................................................635
Implementation Information......................................................................................................................................... 635
Protocol Overview..........................................................................................................................................................635
Requesting Multicast Traffic..................................................................................................................................635
Refuse Multicast Traffic..........................................................................................................................................636
Send Multicast Traffic............................................................................................................................................. 636
Configuring PIM-SM...................................................................................................................................................... 636
Related Configuration Tasks.................................................................................................................................. 637
Enable PIM-SM................................................................................................................................................................637
Configuring S,G Expiry Timers.....................................................................................................................................638
Configuring a Static Rendezvous Point.................................................................................................................... 639
Overriding Bootstrap Router Updates................................................................................................................. 639
Configuring a Designated Router................................................................................................................................639
Creating Multicast Boundaries and Domains............................................................................................................ 641
Chapter 37: PIM Source-Specific Mode (PIM-SSM).................................................................. 642
Implementation Information......................................................................................................................................... 642
Configure PIM-SSM....................................................................................................................................................... 642
Enabling PIM-SSM..........................................................................................................................................................643
Use PIM-SSM with IGMP Version 2 Hosts.............................................................................................................. 643
Electing an RP using the BSR Mechanism............................................................................................................... 645
Enabling RP to Server Specific Multicast Groups.............................................................................................646
Chapter 38: Port Monitoring......................................................................................................647
Important Points to Remember................................................................................................................................... 647
Port Monitoring............................................................................................................................................................... 648
Configuring Port Monitoring........................................................................................................................................ 650
Configuring Monitor Multicast Queue........................................................................................................................ 651
Contents
19
Flow-Based Monitoring................................................................................................................................................. 652
Enabling Flow-Based Monitoring...........................................................................................................................653
Configuring IPv6 Flow-Based Mirroring.............................................................................................................. 655
Remote Port Mirroring.................................................................................................................................................. 656
Remote Port Mirroring Example............................................................................................................................657
Configuring Remote Port Mirroring......................................................................................................................657
Displaying Remote-Port Mirroring Configurations............................................................................................659
Configuration procedure for Remote Port Mirroring....................................................................................... 659
Encapsulated Remote Port Monitoring..................................................................................................................... 663
ERPM Behavior on a typical Dell EMC Networking OS ....................................................................................... 665
Port Monitoring on VLT................................................................................................................................................ 666
Chapter 39: Per-VLAN Spanning Tree Plus (PVST+)..................................................................669
Protocol Overview..........................................................................................................................................................669
Implementation Information..........................................................................................................................................670
Configure Per-VLAN Spanning Tree Plus.................................................................................................................. 671
Enabling PVST+................................................................................................................................................................671
Disabling PVST+...............................................................................................................................................................671
Influencing PVST+ Root Selection..............................................................................................................................672
Modifying Global PVST+ Parameters.........................................................................................................................673
Modifying Interface PVST+ Parameters................................................................................................................... 673
Configuring an EdgePort...............................................................................................................................................674
PVST+ in Multi-Vendor Networks.............................................................................................................................. 675
Enabling PVST+ Extend System ID............................................................................................................................ 675
PVST+ Sample Configurations.................................................................................................................................... 676
Chapter 40: Quality of Service (QoS)........................................................................................ 678
Implementation Information......................................................................................................................................... 680
Port-Based QoS Configurations..................................................................................................................................680
Setting dot1p Priorities for Incoming Traffic......................................................................................................680
Honoring dot1p Priorities on Ingress Traffic........................................................................................................681
Configuring Port-Based Rate Policing..................................................................................................................681
Configuring Port-Based Rate Shaping.................................................................................................................682
Policy-Based QoS Configurations...............................................................................................................................683
Classify Traffic...........................................................................................................................................................683
Dot1p to Queue Mapping Requirement............................................................................................................... 686
Create a QoS Policy..................................................................................................................................................687
DSCP Color Maps..................................................................................................................................................... 689
Create Policy Maps................................................................................................................................................... 691
Enabling QoS Rate Adjustment................................................................................................................................... 694
Enabling Strict-Priority Queueing............................................................................................................................... 695
Queue Classification Requirements for PFC Functionality...................................................................................695
Support for marking dot1p value in L3 Input Qos Policy.......................................................................................695
Weighted Random Early Detection............................................................................................................................ 696
Enabling and Disabling WRED Globally.................................................................................................................697
Creating WRED Profiles.......................................................................................................................................... 697
Applying a WRED Profile to Traffic...................................................................................................................... 697
Displaying Default and Configured WRED Profiles........................................................................................... 697
Displaying WRED Drop Statistics.......................................................................................................................... 697
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