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Dell OS9 User manual

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Dell Configuration Guide for the S6000
System
9.14.2.5
January 2020
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.
© 2019 - 2020 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............................................................................................................................53
Using HTTP for File Transfers....................................................................................................................................... 53
Verify Software Images Before Installation................................................................................................................ 53
Chapter 4: Management.............................................................................................................. 55
Configuring Privilege Levels........................................................................................................................................... 55
Removing a Command from EXEC Mode............................................................................................................. 56
Contents
Contents 3
Moving a Command from EXEC Privilege Mode to EXEC Mode.................................................................... 56
Allowing Access to CONFIGURATION Mode Commands................................................................................. 56
Allowing Access to Different Modes...................................................................................................................... 56
Applying a Privilege Level to a Username............................................................................................................. 58
Applying a Privilege Level to a Terminal Line....................................................................................................... 58
Configuring Logging......................................................................................................................................................... 58
Audit and Security Logs.............................................................................................................................................58
Configuring Logging Format .............................................................................................................................60
Setting Up a Secure Connection to a Syslog Server................................................................................ 60
Log Messages in the Internal Buffer............................................................................................................................ 62
Disabling System Logging............................................................................................................................................... 62
Sending System Messages to a Syslog Server.......................................................................................................... 62
Configuring a UNIX System as a Syslog Server...................................................................................................62
Track Login Activity..........................................................................................................................................................63
Restrictions for Tracking Login Activity................................................................................................................ 63
Configuring Login Activity Tracking........................................................................................................................63
Display Login Statistics.............................................................................................................................................. 63
Limit Concurrent Login Sessions...................................................................................................................................65
Restrictions for Limiting the Number of Concurrent Sessions........................................................................ 65
Configuring Concurrent Session Limit................................................................................................................... 65
Enabling the System to Clear Existing Sessions..................................................................................................65
Enabling Secured CLI Mode........................................................................................................................................... 66
Changing System Logging Settings..............................................................................................................................66
Display the Logging Buffer and the Logging Configuration....................................................................................67
Configuring a UNIX Logging Facility Level..................................................................................................................68
Synchronizing Log Messages......................................................................................................................................... 69
Enabling Timestamp on Syslog Messages...................................................................................................................69
File Transfer Services.......................................................................................................................................................72
Enabling the FTP Server............................................................................................................................................ 72
Configuring FTP Server Parameters.......................................................................................................................73
Configuring FTP Client Parameters........................................................................................................................ 73
Terminal Lines.....................................................................................................................................................................73
Denying and Permitting Access to a Terminal Line............................................................................................. 74
Configuring Login Authentication for Terminal Lines......................................................................................... 75
Setting Timeout for EXEC Privilege Mode..................................................................................................................75
Using Telnet to get to Another Network Device....................................................................................................... 76
Lock CONFIGURATION Mode....................................................................................................................................... 76
Recovering from a Forgotten Password on the S6000........................................................................................... 77
Recovering from a Forgotten Enable Password........................................................................................................ 78
Recovering from a Failed Start on the S6000........................................................................................................... 78
Restoring the Factory Default Settings....................................................................................................................... 79
Restoring Factory Default Environment Variables.............................................................................................. 79
Viewing the Reason for Last System Reboot............................................................................................................ 80
Disabling Syslog Messages for SNMP Authentication Failure Events.................................................................. 81
Chapter 5: 802.1X........................................................................................................................82
Port-Authentication Process..........................................................................................................................................83
EAP over RADIUS........................................................................................................................................................84
Configuring 802.1X............................................................................................................................................................85
Important Points to Remember..................................................................................................................................... 85
4
Contents
Enabling 802.1X................................................................................................................................................................. 86
Configuring dot1x Profile ................................................................................................................................................ 87
Configuring MAC addresses for a do1x Profile...........................................................................................................87
Configuring the Static MAB and MAB Profile ...........................................................................................................88
Configuring Critical VLAN .............................................................................................................................................. 89
Configuring Request Identity Re-Transmissions....................................................................................................... 89
Configuring a Quiet Period after a Failed Authentication..................................................................................90
Forcibly Authorizing or Unauthorizing a Port..............................................................................................................91
Re-Authenticating a Port................................................................................................................................................. 91
Configuring Timeouts....................................................................................................................................................... 92
Configuring Dynamic VLAN Assignment with Port Authentication...................................................................... 93
Guest and Authentication-Fail VLANs......................................................................................................................... 94
Configuring a Guest VLAN........................................................................................................................................95
Configuring an Authentication-Fail VLAN............................................................................................................. 95
Chapter 6: Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 97
Optimizing CAM Utilization During the Attachment of ACLs to VLANs..............................................................97
Guidelines for Configuring ACL VLAN Groups........................................................................................................... 98
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.......................................... 98
Configuring ACL VLAN Groups................................................................................................................................98
Configuring FP Blocks for VLAN Parameters.......................................................................................................99
Viewing CAM Usage....................................................................................................................................................... 100
Allocating FP Blocks for VLAN Processes................................................................................................................. 101
Chapter 7: Access Control Lists (ACLs)..................................................................................... 102
IP Access Control Lists (ACLs)....................................................................................................................................103
CAM Usage................................................................................................................................................................. 103
Implementing ACLs on Dell EMC Networking OS..............................................................................................104
Important Points to Remember....................................................................................................................................105
Configuration Task List for Route Maps..............................................................................................................106
Configuring Match Routes...................................................................................................................................... 108
Configuring Set Conditions..................................................................................................................................... 109
Configure a Route Map for Route Redistribution.............................................................................................. 109
Configure a Route Map for Route Tagging..........................................................................................................110
Continue Clause.......................................................................................................................................................... 110
IP Fragment Handling.......................................................................................................................................................111
IP Fragments ACL Examples.................................................................................................................................... 111
Layer 4 ACL Rules Examples.................................................................................................................................... 111
Configure a Standard IP ACL........................................................................................................................................ 112
Configuring a Standard IP ACL Filter.....................................................................................................................113
Configure an Extended IP ACL..................................................................................................................................... 114
Configuring Filters with a Sequence Number...................................................................................................... 114
Configuring Filters Without a Sequence Number............................................................................................... 116
Configure Layer 2 and Layer 3 ACLs........................................................................................................................... 117
Assign an IP ACL to an Interface..................................................................................................................................117
Applying an IP ACL...........................................................................................................................................................118
Counting ACL Hits......................................................................................................................................................118
Configure Ingress ACLs.................................................................................................................................................. 119
Configure Egress ACLs................................................................................................................................................... 119
Contents
5
Applying Egress Layer 3 ACLs (Control-Plane)................................................................................................. 120
IP Prefix Lists....................................................................................................................................................................120
Configuration Task List for Prefix Lists.................................................................................................................121
ACL Remarks.................................................................................................................................................................... 124
Configuring a Remark............................................................................................................................................... 124
Deleting a Remark......................................................................................................................................................125
ACL Resequencing.......................................................................................................................................................... 125
Resequencing an ACL or Prefix List......................................................................................................................126
Route Maps....................................................................................................................................................................... 127
Configuring UDF ACL......................................................................................................................................................127
Configuring IP Mirror Access Group........................................................................................................................... 129
Sample Configuration................................................................................................................................................130
Example of viewing IP mirror–access–group applied to an Interface.......................................................... 130
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................. 131
How BFD Works................................................................................................................................................................131
BFD Packet Format...................................................................................................................................................132
BFD Sessions.............................................................................................................................................................. 133
BFD Three-Way Handshake.................................................................................................................................... 134
Session State Changes.............................................................................................................................................135
Important Points to Remember....................................................................................................................................135
Configure BFD..................................................................................................................................................................135
Configure BFD for Physical Ports..........................................................................................................................136
Configure BFD for Static Routes........................................................................................................................... 137
Configure BFD for IPv6 Static Routes.................................................................................................................. 141
Configure BFD for OSPF..........................................................................................................................................143
Configure BFD for OSPFv3..................................................................................................................................... 147
Configure BFD for IS-IS........................................................................................................................................... 149
Configure BFD for BGP.............................................................................................................................................151
Configure BFD for VRRP......................................................................................................................................... 158
Configuring Protocol Liveness................................................................................................................................160
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 161
BGP IP version 4 (BGPv4) Overview..........................................................................................................................161
BGP Autonomous Systems...................................................................................................................................... 161
AS4 Number Representation.................................................................................................................................. 163
Four-Byte AS Numbers............................................................................................................................................ 165
BGP router ID............................................................................................................................................................. 165
Sessions and Peers....................................................................................................................................................165
Establish a Session.................................................................................................................................................... 165
BGP Attributes for selecting Best Path............................................................................................................... 166
Multiprotocol BGP...................................................................................................................................................... 171
BGP global and address family configuration......................................................................................................172
Implement BGP with Dell EMC Networking OS................................................................................................. 173
Configuration Information........................................................................................................................................176
Basic BGP configuration tasks......................................................................................................................................177
Prerequisite for configuring a BGP network....................................................................................................... 177
Restrictions..................................................................................................................................................................177
Enabling BGP...............................................................................................................................................................177
6
Contents
Enabling four-byte autonomous system numbers..............................................................................................179
Changing a BGP router ID....................................................................................................................................... 180
Configuring AS4 Number Representations..........................................................................................................180
Configuring a BGP peer............................................................................................................................................ 181
Example-Configuring BGP routing between peers............................................................................................182
BGP peer group..........................................................................................................................................................183
Advanced BGP configuration tasks............................................................................................................................ 190
Route-refresh and Soft-reconfiguration..............................................................................................................190
Aggregating Routes...................................................................................................................................................192
Filtering BGP...............................................................................................................................................................194
Configuring BGP Fast Fall-Over.............................................................................................................................199
Configuring Passive Peering................................................................................................................................... 201
Enabling Graceful Restart........................................................................................................................................201
Redistributing Routes...............................................................................................................................................202
Enabling Additional Paths........................................................................................................................................203
Configuring IP Community Lists............................................................................................................................204
Configuring an IP Extended Community List..................................................................................................... 205
Configure BGP attributes....................................................................................................................................... 206
Enabling Multipath.................................................................................................................................................... 209
Route Reflectors........................................................................................................................................................210
Enabling Route Flap Dampening..............................................................................................................................211
Changing BGP keepalive and hold timers............................................................................................................ 213
Setting the extended timer..................................................................................................................................... 214
Enabling or disabling BGP neighbors.....................................................................................................................214
Route Map Continue................................................................................................................................................. 215
Configuring BGP Confederations...........................................................................................................................216
Configuring a BGP VRF address family................................................................................................................ 216
Maintaining Existing AS Numbers During an AS Migration..............................................................................218
Allowing an AS Number to Appear in its Own AS Path.................................................................................... 218
Enabling MBGP Configurations.............................................................................................................................. 219
MBGP support for IPv6...........................................................................................................................................220
Configuring IPv6 MBGP between peers............................................................................................................. 220
Example-Configuring IPv4 and IPv6 neighbors................................................................................................. 220
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor...................................223
BGP Regular Expression Optimization................................................................................................................. 224
Debugging BGP......................................................................................................................................................... 224
Chapter 10: Content Addressable Memory (CAM)......................................................................227
CAM Allocation................................................................................................................................................................ 227
Test CAM Usage............................................................................................................................................................. 229
View CAM Profiles..........................................................................................................................................................229
View CAM-ACL Settings...............................................................................................................................................230
View CAM Usage............................................................................................................................................................. 231
Configuring CAM Threshold and Silence Period..................................................................................................... 232
CAM Optimization...........................................................................................................................................................233
Troubleshoot CAM Profiling......................................................................................................................................... 233
QoS CAM Region Limitation...................................................................................................................................233
Syslog Error When the Table is Full......................................................................................................................234
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................234
Syslog Warning for Discrepancies Between Configured Extended Prefixes.............................................. 234
Contents
7
Unified Forwarding Table (UFT) Modes....................................................................................................................234
Configuring UFT Modes.......................................................................................................................................... 234
Chapter 11: Control Plane Policing (CoPP)................................................................................ 236
Configure Control Plane Policing.................................................................................................................................237
Configuring CoPP for Protocols............................................................................................................................238
Configuring CoPP for CPU Queues......................................................................................................................239
Protocol to CPU Queue Mapping..........................................................................................................................240
Configuring Protocol to CPU Queue Mapping....................................................................................................241
Displaying CoPP Configuration .............................................................................................................................242
Chapter 12: Data Center Bridging (DCB)....................................................................................244
Ethernet Enhancements in Data Center Bridging...................................................................................................244
Priority-Based Flow Control................................................................................................................................... 245
Enhanced Transmission Selection.........................................................................................................................246
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 247
Data Center Bridging in a Traffic Flow................................................................................................................ 248
Enabling Data Center Bridging.....................................................................................................................................248
DCB Maps and its Attributes................................................................................................................................. 249
Data Center Bridging: Default Configuration........................................................................................................... 249
Configuring Priority-Based Flow Control.................................................................................................................. 250
Configuring Lossless Queues....................................................................................................................................... 250
Configuring PFC in a DCB Map................................................................................................................................... 252
Configuring PFC without a DCB Map........................................................................................................................253
Priority-Based Flow Control Using Dynamic Buffer Method......................................................................... 255
Behavior of Tagged Packets........................................................................................................................................256
Configuration Example for DSCP and PFC Priorities.............................................................................................256
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................257
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................258
PFC and ETS Configuration Examples...................................................................................................................... 259
Using PFC to Manage Converged Ethernet Traffic...............................................................................................259
Operations on Untagged Packets...............................................................................................................................259
Generation of PFC for a Priority for Untagged Packets.......................................................................................260
Configure Enhanced Transmission Selection........................................................................................................... 260
ETS Prerequisites and Restrictions...................................................................................................................... 260
Creating an ETS Priority Group.............................................................................................................................260
ETS Operation with DCBx....................................................................................................................................... 261
Configuring Bandwidth Allocation for DCBx CIN............................................................................................... 261
Configuring ETS in a DCB Map..............................................................................................................................262
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 263
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 264
Applying DCB Policies in a Switch Stack.................................................................................................................. 264
Configure a DCBx Operation........................................................................................................................................264
DCBx Operation.........................................................................................................................................................264
DCBx Port Roles....................................................................................................................................................... 265
DCB Configuration Exchange................................................................................................................................ 266
Configuration Source Election............................................................................................................................... 266
Propagation of DCB Information........................................................................................................................... 267
Auto-Detection and Manual Configuration of the DCBx Version..................................................................267
8
Contents
DCBx Example............................................................................................................................................................267
DCBx Prerequisites and Restrictions................................................................................................................... 268
Configuring DCBx..................................................................................................................................................... 268
Verifying the DCB Configuration..................................................................................................................................271
QoS dot1p Traffic Classification and Queue Assignment......................................................................................280
Configuring the Dynamic Buffer Method..................................................................................................................280
Sample DCB Configuration............................................................................................................................................281
Chapter 13: Dynamic Host Configuration Protocol (DHCP)........................................................ 284
DHCP Packet Format and Options.............................................................................................................................284
Assign an IP Address using DHCP.............................................................................................................................. 286
Implementation Information......................................................................................................................................... 286
Configure the System to be a DHCP Server............................................................................................................287
Configuring the Server for Automatic Address Allocation.............................................................................. 287
Specifying a Default Gateway................................................................................................................................288
Configure a Method of Hostname Resolution....................................................................................................289
Using DNS for Address Resolution....................................................................................................................... 289
Using NetBIOS WINS for Address Resolution................................................................................................... 289
Creating Manual Binding Entries........................................................................................................................... 289
Debugging the DHCP Server................................................................................................................................. 290
Using DHCP Clear Commands...............................................................................................................................290
Configure the System to be a DHCP Client.............................................................................................................290
Configuring the DHCP Client System.................................................................................................................. 290
DHCP Client on a Management Interface...........................................................................................................292
DHCP Client Operation with Other Features.....................................................................................................292
DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 293
Configuring Route Leaking between VRFs on DHCP Relay Agent...............................................................293
Non-default VRF configuration for DHCPv6 helper address............................................................................... 294
Configuring DHCP relay source interface.................................................................................................................294
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................295
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................295
Configure the System for User Port Stacking (Option 230)............................................................................... 296
Configure Secure DHCP............................................................................................................................................... 296
Option 82 (DHCPv4 relay options).......................................................................................................................297
DHCPv6 relay agent options.................................................................................................................................. 297
DHCP Snooping.........................................................................................................................................................298
Configuring the DHCP secondary-subnet...........................................................................................................302
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 302
Dynamic ARP Inspection......................................................................................................................................... 303
Configuring Dynamic ARP Inspection.................................................................................................................. 303
Source Address Validation............................................................................................................................................304
Enabling IP Source Address Validation................................................................................................................ 305
DHCP MAC Source Address Validation...............................................................................................................305
Enabling IP+MAC Source Address Validation.................................................................................................... 305
Viewing the Number of SAV Dropped Packets................................................................................................. 306
Clearing the Number of SAV Dropped Packets.................................................................................................306
Chapter 14: Equal Cost Multi-Path (ECMP)............................................................................... 307
ECMP for Flow-Based Affinity.................................................................................................................................... 307
Contents
9
Configuring the Hash Algorithm............................................................................................................................ 307
Enabling Deterministic ECMP Next Hop............................................................................................................. 307
Configuring the Hash Algorithm Seed................................................................................................................. 308
Link Bundle Monitoring..................................................................................................................................................308
Managing ECMP Group Paths...............................................................................................................................309
Creating an ECMP Group Bundle..........................................................................................................................309
Modifying the ECMP Group Threshold................................................................................................................309
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table...............................310
Support for ECMP in host table.............................................................................................................................310
Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ..................................................................... 311
RTAG7................................................................................................................................................................................. 311
Flow-based Hashing for ECMP.................................................................................................................................... 312
Chapter 15: FIP Snooping...........................................................................................................315
Fibre Channel over Ethernet.........................................................................................................................................315
Ensure Robustness in a Converged Ethernet Network..........................................................................................315
FIP Snooping on Ethernet Bridges.............................................................................................................................. 316
FIP Snooping in a Switch Stack................................................................................................................................... 318
Using FIP Snooping......................................................................................................................................................... 318
FIP Snooping Prerequisites..................................................................................................................................... 318
Important Points to Remember..............................................................................................................................318
Enabling the FCoE Transit Feature....................................................................................................................... 319
Enable FIP Snooping on VLANs..............................................................................................................................319
Configure the FC-MAP Value................................................................................................................................ 320
Configure a Port for a Bridge-to-Bridge Link.................................................................................................... 320
Configure a Port for a Bridge-to-FCF Link.........................................................................................................320
Impact on Other Software Features.................................................................................................................... 320
FIP Snooping Restrictions........................................................................................................................................321
Configuring FIP Snooping........................................................................................................................................ 321
Displaying FIP Snooping Information.......................................................................................................................... 321
FCoE Transit Configuration Example......................................................................................................................... 326
Chapter 16: Flex Hash and Optimized Boot-Up...........................................................................328
Flex Hash Capability Overview.................................................................................................................................... 328
Configuring the Flex Hash Mechanism...................................................................................................................... 328
Configuring Fast Boot and LACP Fast Switchover................................................................................................ 329
Optimizing the Boot Time............................................................................................................................................. 329
Interoperation of Applications with Fast Boot and System States.................................................................... 330
RDMA Over Converged Ethernet (RoCE) Overview............................................................................................. 333
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces................................................................................. 333
Chapter 17: Force10 Resilient Ring Protocol (FRRP)..................................................................335
Protocol Overview..........................................................................................................................................................335
Ring Status................................................................................................................................................................. 336
Multiple FRRP Rings.................................................................................................................................................336
Important FRRP Points............................................................................................................................................337
Important FRRP Concepts......................................................................................................................................338
Implementing FRRP........................................................................................................................................................338
FRRP Configuration....................................................................................................................................................... 339
10
Contents
Creating the FRRP Group....................................................................................................................................... 339
Configuring the Control VLAN...............................................................................................................................339
Configuring and Adding the Member VLANs..................................................................................................... 340
Setting the FRRP Timers......................................................................................................................................... 341
Clearing the FRRP Counters................................................................................................................................... 341
Viewing the FRRP Configuration........................................................................................................................... 341
Viewing the FRRP Information............................................................................................................................... 341
Troubleshooting FRRP...................................................................................................................................................342
Sample Configuration and Topology...........................................................................................................................342
FRRP Support on VLT................................................................................................................................................... 343
Chapter 18: GARP VLAN Registration Protocol (GVRP)............................................................. 346
Configure GVRP.............................................................................................................................................................. 347
Enabling GVRP Globally................................................................................................................................................. 347
Enabling GVRP on a Layer 2 Interface...................................................................................................................... 348
Configure GVRP Registration...................................................................................................................................... 348
Configure a GARP Timer...............................................................................................................................................349
Chapter 19: Internet Group Management Protocol (IGMP)........................................................ 350
IGMP Protocol Overview.............................................................................................................................................. 350
IGMP Version 2......................................................................................................................................................... 350
IGMP Version 3..........................................................................................................................................................352
Configure IGMP...............................................................................................................................................................354
Viewing IGMP Enabled Interfaces.............................................................................................................................. 355
Selecting an IGMP Version...........................................................................................................................................355
Viewing IGMP Groups....................................................................................................................................................356
Viewing IGMP Snooping Groups................................................................................................................................. 356
Adjusting Timers..............................................................................................................................................................356
Adjusting Query and Response Timers................................................................................................................ 356
Enabling IGMP Immediate-Leave................................................................................................................................ 357
IGMP Snooping................................................................................................................................................................357
Configuring IGMP Snooping................................................................................................................................... 358
Removing a Group-Port Association.................................................................................................................... 358
Disabling Multicast Flooding...................................................................................................................................359
Specifying a Port as Connected to a Multicast Router................................................................................... 359
Configuring the Switch as Querier....................................................................................................................... 359
Fast Convergence after MSTP Topology Changes................................................................................................360
Egress Interface Selection (EIS) for HTTP and IGMP Applications...................................................................360
Designating a Multicast Router Interface................................................................................................................. 367
Chapter 20: Interfaces.............................................................................................................. 368
Interface Types............................................................................................................................................................... 369
View Basic Interface Information................................................................................................................................369
Resetting an Interface to its Factory Default State................................................................................................371
Enabling a Physical Interface........................................................................................................................................ 371
Physical Interfaces..........................................................................................................................................................372
Configuration Task List for Physical Interfaces................................................................................................. 372
40G to 1G Breakout Cable Adaptor...................................................................................................................... 372
Overview of Layer Modes....................................................................................................................................... 373
Contents
11
Configuring Layer 2 (Data Link) Mode.................................................................................................................373
Configuring Layer 2 (Interface) Mode................................................................................................................. 373
Configuring Layer 3 (Network) Mode..................................................................................................................374
Configuring Layer 3 (Interface) Mode................................................................................................................. 374
Automatic recovery of an Err-disabled interface.................................................................................................... 375
Configuring an automatic recovery for an Err-disabled interface.................................................................375
Egress Interface Selection (EIS)................................................................................................................................. 376
Configuring EIS.......................................................................................................................................................... 376
Management Interfaces.................................................................................................................................................377
Configuring Management Interfaces.................................................................................................................... 377
Configuring a Management Interface on an Ethernet Port............................................................................ 378
VLAN Interfaces.............................................................................................................................................................. 379
Loopback Interfaces.......................................................................................................................................................379
Null Interfaces..................................................................................................................................................................380
Configuring Port Delay.................................................................................................................................................. 380
Port Channel Interfaces................................................................................................................................................ 380
Port Channel Definition and Standards................................................................................................................ 381
Port Channel Benefits...............................................................................................................................................381
Port Channel Implementation................................................................................................................................. 381
Interfaces in Port Channels.....................................................................................................................................381
Configuration Tasks for Port Channel Interfaces............................................................................................. 382
Creating a Port Channel.......................................................................................................................................... 382
Adding a Physical Interface to a Port Channel.................................................................................................. 382
Reassigning an Interface to a New Port Channel............................................................................................. 384
Configuring the Minimum Oper Up Links in a Port Channel...........................................................................384
Adding or Removing a Port Channel from a VLAN...........................................................................................385
Assigning an IP Address to a Port Channel........................................................................................................ 386
Deleting or Disabling a Port Channel....................................................................................................................386
Load Balancing Through Port Channels.............................................................................................................. 386
Changing the Hash Algorithm................................................................................................................................ 386
Bulk Configuration.......................................................................................................................................................... 387
Interface Range......................................................................................................................................................... 387
Bulk Configuration Examples..................................................................................................................................388
Defining Interface Range Macros............................................................................................................................... 389
Define the Interface Range.................................................................................................................................... 389
Choosing an Interface-Range Macro................................................................................................................... 389
Monitoring and Maintaining Interfaces......................................................................................................................390
Maintenance Using TDR...........................................................................................................................................391
Non Dell-Qualified Transceivers...................................................................................................................................391
Splitting 40G Ports without Reload............................................................................................................................ 391
Splitting QSFP Ports to SFP+ Ports..........................................................................................................................393
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port.............................................................................. 394
Configuring wavelength for 10–Gigabit SFP+ optics.............................................................................................399
Link Dampening............................................................................................................................................................... 399
Enabling Link Dampening........................................................................................................................................ 402
Link Bundle Monitoring..................................................................................................................................................403
Using Ethernet Pause Frames for Flow Control......................................................................................................403
Enabling Pause Frames............................................................................................................................................404
Configure the MTU Size on an Interface.................................................................................................................. 404
Port-Pipes.........................................................................................................................................................................405
12
Contents
Auto-Negotiation on Ethernet Interfaces.................................................................................................................405
Setting the Speed of Ethernet Interfaces.......................................................................................................... 406
Set Auto-Negotiation Options............................................................................................................................... 407
View Advanced Interface Information....................................................................................................................... 408
Configuring the Interface Sampling Size.............................................................................................................408
Configuring the Traffic Sampling Size Globally....................................................................................................... 409
Dynamic Counters........................................................................................................................................................... 410
Clearing Interface Counters..................................................................................................................................... 411
Compressing Configuration Files.................................................................................................................................. 411
Chapter 21: IPv4 Routing........................................................................................................... 414
IP Addresses..................................................................................................................................................................... 415
Configuration Tasks for IP Addresses........................................................................................................................ 415
Assigning IP Addresses to an Interface......................................................................................................................415
Configuring Static Routes............................................................................................................................................. 416
Adding description for IPv4 and IPv6 static routes...........................................................................................417
Configure Static Routes for the Management Interface.......................................................................................418
Using the Configured Source IP Address in ICMP Messages...............................................................................418
Configuring the Duration to Establish a TCP Connection..................................................................................... 418
Enabling Directed Broadcast.........................................................................................................................................419
Resolution of Host Names.............................................................................................................................................419
Enabling Dynamic Resolution of Host Names...........................................................................................................419
Specifying the Local System Domain and a List of Domains............................................................................... 420
Configuring DNS with Traceroute.............................................................................................................................. 420
ARP..................................................................................................................................................................................... 421
Configuration Tasks for ARP........................................................................................................................................ 421
Configuring Static ARP Entries.................................................................................................................................... 421
Enabling Proxy ARP........................................................................................................................................................422
Clearing ARP Cache....................................................................................................................................................... 422
ARP Learning via Gratuitous ARP...............................................................................................................................422
Enabling ARP Learning via Gratuitous ARP..............................................................................................................423
ARP Learning via ARP Request................................................................................................................................... 423
Configuring ARP Retries............................................................................................................................................... 424
ICMP.................................................................................................................................................................................. 424
Configuration Tasks for ICMP..................................................................................................................................... 424
Enabling ICMP Unreachable Messages..................................................................................................................... 424
ICMP Redirects............................................................................................................................................................... 425
UDP Helper.......................................................................................................................................................................426
Enabling UDP Helper......................................................................................................................................................426
Configuring a Broadcast Address............................................................................................................................... 426
Configurations Using UDP Helper...............................................................................................................................427
UDP Helper with Broadcast-All Addresses............................................................................................................... 427
UDP Helper with Subnet Broadcast Addresses.......................................................................................................428
UDP Helper with Configured Broadcast Addresses............................................................................................... 428
UDP Helper with No Configured Broadcast Addresses.........................................................................................429
Troubleshooting UDP Helper........................................................................................................................................429
Chapter 22: IPv6 Routing.......................................................................................................... 430
Protocol Overview..........................................................................................................................................................430
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Extended Address Space........................................................................................................................................ 430
Stateless Autoconfiguration................................................................................................................................... 430
IPv6 Headers...............................................................................................................................................................431
Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support............................................................... 431
IPv6 Header Fields.................................................................................................................................................... 432
Extension Header Fields.......................................................................................................................................... 434
Addressing.................................................................................................................................................................. 435
Implementing IPv6 with Dell EMC Networking OS.................................................................................................436
ICMPv6..............................................................................................................................................................................437
Path MTU discovery.......................................................................................................................................................438
IPv6 Neighbor Discovery...............................................................................................................................................438
IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 439
Configuring the IPv6 Recursive DNS Server......................................................................................................439
Debugging IPv6 RDNSS Information Sent to the Host .................................................................................. 440
Displaying IPv6 RDNSS Information.....................................................................................................................440
Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................441
Configuration Tasks for IPv6........................................................................................................................................ 441
Adjusting Your CAM-Profile.................................................................................................................................... 441
Assigning an IPv6 Address to an Interface......................................................................................................... 442
Assigning a Static IPv6 Route................................................................................................................................442
Configuring Telnet with IPv6................................................................................................................................. 443
SNMP over IPv6........................................................................................................................................................443
Displaying IPv6 Information.................................................................................................................................... 443
Displaying an IPv6 Interface Information............................................................................................................ 444
Showing IPv6 Routes............................................................................................................................................... 444
Showing the Running-Configuration for an Interface......................................................................................445
Clearing IPv6 Routes................................................................................................................................................446
Disabling ND Entry Timeout....................................................................................................................................446
Configuring IPv6 RA Guard.......................................................................................................................................... 446
Configuring IPv6 RA Guard on an Interface....................................................................................................... 448
Monitoring IPv6 RA Guard...................................................................................................................................... 448
Chapter 23: iSCSI Optimization.................................................................................................449
iSCSI Optimization Overview....................................................................................................................................... 449
Monitoring iSCSI Traffic Flows..............................................................................................................................450
Application of Quality of Service to iSCSI Traffic Flows..................................................................................451
Information Monitored in iSCSI Traffic Flows.....................................................................................................451
Detection and Auto-Configuration for Dell EqualLogic Arrays.......................................................................452
Configuring Detection and Ports for Dell Compellent Arrays.........................................................................452
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.......................................................... 452
Enable and Disable iSCSI Optimization................................................................................................................ 453
Default iSCSI Optimization Values..............................................................................................................................453
iSCSI Optimization Prerequisites................................................................................................................................ 454
Configuring iSCSI Optimization................................................................................................................................... 454
Displaying iSCSI Optimization Information............................................................................................................... 456
Chapter 24: Intermediate System to Intermediate System.........................................................458
IS-IS Protocol Overview................................................................................................................................................458
IS-IS Addressing..............................................................................................................................................................458
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Multi-Topology IS-IS...................................................................................................................................................... 459
Transition Mode.........................................................................................................................................................459
Interface Support......................................................................................................................................................459
Adjacencies.................................................................................................................................................................459
Graceful Restart..............................................................................................................................................................460
Timers.......................................................................................................................................................................... 460
Implementation Information......................................................................................................................................... 460
Configuration Information..............................................................................................................................................461
Configuration Tasks for IS-IS..................................................................................................................................461
Configuring the Distance of a Route....................................................................................................................468
Changing the IS-Type.............................................................................................................................................. 468
Redistributing IPv4 Routes..................................................................................................................................... 470
Redistributing IPv6 Routes......................................................................................................................................471
Configuring Authentication Passwords................................................................................................................472
Setting the Overload Bit..........................................................................................................................................472
Debugging IS-IS......................................................................................................................................................... 473
IS-IS Metric Styles.......................................................................................................................................................... 473
Configure Metric Values................................................................................................................................................474
Maximum Values in the Routing Table................................................................................................................. 474
Change the IS-IS Metric Style in One Level Only............................................................................................. 474
Leaks from One Level to Another......................................................................................................................... 475
Sample Configurations...................................................................................................................................................476
Chapter 25: In-Service Software Upgrade................................................................................. 479
ISSU Introduction............................................................................................................................................................479
Fastboot 2.0 (Zero Loss Upgrade)............................................................................................................................. 479
L2 ISSU..............................................................................................................................................................................480
L3 ISSU..............................................................................................................................................................................480
CoPP.................................................................................................................................................................................. 480
Mirroring flow control packets..................................................................................................................................... 481
PFC..................................................................................................................................................................................... 481
QoS..................................................................................................................................................................................... 481
Tunnel Configuration.......................................................................................................................................................481
Chapter 26: Link Aggregation Control Protocol (LACP)............................................................. 482
Introduction to Dynamic LAGs and LACP................................................................................................................. 482
Important Points to Remember............................................................................................................................. 482
LACP Modes...............................................................................................................................................................483
Configuring LACP Commands................................................................................................................................483
LACP Configuration Tasks............................................................................................................................................483
Creating a LAG.......................................................................................................................................................... 484
Configuring the LAG Interfaces as Dynamic...................................................................................................... 484
Setting the LACP Long Timeout........................................................................................................................... 484
Monitoring and Debugging LACP..........................................................................................................................485
Shared LAG State Tracking..........................................................................................................................................485
Configuring Shared LAG State Tracking............................................................................................................. 486
Important Points about Shared LAG State Tracking........................................................................................487
LACP Basic Configuration Example............................................................................................................................488
Configure a LAG on ALPHA....................................................................................................................................488
Contents
15
Chapter 27: Layer 2................................................................................................................... 496
Manage the MAC Address Table................................................................................................................................ 496
Clearing the MAC Address Table.......................................................................................................................... 496
Setting the Aging Time for Dynamic Entries...................................................................................................... 496
Configuring a Static MAC Address....................................................................................................................... 497
Displaying the MAC Address Table....................................................................................................................... 497
MAC Learning Limit........................................................................................................................................................ 497
Setting the MAC Learning Limit............................................................................................................................ 498
mac learning-limit Dynamic.....................................................................................................................................498
mac learning-limit mac-address-sticky................................................................................................................ 498
mac learning-limit station-move............................................................................................................................ 498
mac learning-limit no-station-move......................................................................................................................499
Learning Limit Violation Actions............................................................................................................................ 499
Setting Station Move Violation Actions...............................................................................................................499
Recovering from Learning Limit and Station Move Violations.......................................................................500
Disabling MAC Address Learning on the System..............................................................................................500
Enabling port security.............................................................................................................................................. 500
NIC Teaming..................................................................................................................................................................... 501
Configure Redundant Pairs.......................................................................................................................................... 502
Far-End Failure Detection.............................................................................................................................................505
FEFD State Changes................................................................................................................................................505
Configuring FEFD......................................................................................................................................................506
Enabling FEFD on an Interface.............................................................................................................................. 507
Debugging FEFD....................................................................................................................................................... 508
Chapter 28: Link Layer Discovery Protocol (LLDP).................................................................... 509
802.1AB (LLDP) Overview........................................................................................................................................... 509
Protocol Data Units..................................................................................................................................................509
Optional TLVs....................................................................................................................................................................511
Management TLVs..................................................................................................................................................... 511
TIA-1057 (LLDP-MED) Overview................................................................................................................................ 512
TIA Organizationally Specific TLVs........................................................................................................................513
Configure LLDP................................................................................................................................................................516
CONFIGURATION versus INTERFACE Configurations.......................................................................................... 517
Enabling LLDP...................................................................................................................................................................517
Disabling and Undoing LLDP................................................................................................................................... 517
Enabling LLDP on Management Ports........................................................................................................................518
Disabling and Undoing LLDP on Management Ports........................................................................................ 518
Advertising TLVs..............................................................................................................................................................518
Storing and Viewing Unrecognized LLDP TLVs....................................................................................................... 519
Viewing the LLDP Configuration.................................................................................................................................520
Viewing Information Advertised by Adjacent LLDP Neighbors............................................................................ 521
Examples of Viewing Information Advertised by Neighbors............................................................................521
Configuring LLDPDU Intervals.....................................................................................................................................523
Configuring LLDP Notification Interval......................................................................................................................524
Configuring Transmit and Receive Mode..................................................................................................................524
Configuring the Time to Live Value............................................................................................................................525
Debugging LLDP............................................................................................................................................................. 526
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Relevant Management Objects................................................................................................................................... 527
Chapter 29: Microsoft Network Load Balancing......................................................................... 531
Configuring a Switch for NLB .....................................................................................................................................532
Enabling a Switch for Multicast NLB................................................................................................................... 533
Chapter 30: Multicast Source Discovery Protocol (MSDP)........................................................ 534
Anycast RP.......................................................................................................................................................................535
Implementation Information......................................................................................................................................... 536
Configure Multicast Source Discovery Protocol..................................................................................................... 536
Related Configuration Tasks.................................................................................................................................. 536
Enable MSDP................................................................................................................................................................... 540
Manage the Source-Active Cache.............................................................................................................................. 541
Viewing the Source-Active Cache.........................................................................................................................541
Limiting the Source-Active Cache.........................................................................................................................541
Clearing the Source-Active Cache........................................................................................................................ 541
Enabling the Rejected Source-Active Cache..................................................................................................... 542
Accept Source-Active Messages that Fail the RFP Check.................................................................................. 542
Specifying Source-Active Messages..........................................................................................................................545
Limiting the Source-Active Messages from a Peer................................................................................................546
Preventing MSDP from Caching a Local Source.................................................................................................... 546
Preventing MSDP from Caching a Remote Source................................................................................................547
Preventing MSDP from Advertising a Local Source...............................................................................................547
Logging Changes in Peership States......................................................................................................................... 548
Terminating a Peership..................................................................................................................................................548
Clearing Peer Statistics.................................................................................................................................................548
Debugging MSDP............................................................................................................................................................549
MSDP with Anycast RP.................................................................................................................................................549
Configuring Anycast RP................................................................................................................................................ 550
Reducing Source-Active Message Flooding........................................................................................................551
Specifying the RP Address Used in SA Messages.............................................................................................551
MSDP Sample Configurations..................................................................................................................................... 553
Chapter 31: Multiple Spanning Tree Protocol (MSTP)............................................................... 556
Spanning Tree Variations.............................................................................................................................................. 557
Implementation Information....................................................................................................................................557
Configure Multiple Spanning Tree Protocol............................................................................................................. 557
Related Configuration Tasks.................................................................................................................................. 557
Enable Multiple Spanning Tree Globally.................................................................................................................... 558
Adding and Removing Interfaces................................................................................................................................ 558
Creating Multiple Spanning Tree Instances..............................................................................................................558
Influencing MSTP Root Selection...............................................................................................................................559
Interoperate with Non-Dell Bridges............................................................................................................................560
Changing the Region Name or Revision....................................................................................................................560
Modifying Global Parameters.......................................................................................................................................560
Modifying the Interface Parameters...........................................................................................................................561
Setting STP path cost as constant............................................................................................................................ 562
Configuring an EdgePort...............................................................................................................................................563
Flush MAC Addresses after a Topology Change.....................................................................................................563
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17
MSTP Sample Configurations......................................................................................................................................563
Debugging and Verifying MSTP Configurations...................................................................................................... 567
Chapter 32: Multicast Features................................................................................................. 569
Enabling IP Multicast..................................................................................................................................................... 569
Implementation Information......................................................................................................................................... 569
Multicast Policies............................................................................................................................................................ 570
IPv4 Multicast Policies.............................................................................................................................................570
Understanding Multicast Traceroute (mtrace)........................................................................................................577
Printing Multicast Traceroute (mtrace) Paths........................................................................................................ 577
Supported Error Codes..................................................................................................................................................579
mtrace Scenarios............................................................................................................................................................ 580
Chapter 33: Object Tracking......................................................................................................586
Object Tracking Overview............................................................................................................................................586
Track Layer 2 Interfaces......................................................................................................................................... 587
Track Layer 3 Interfaces......................................................................................................................................... 587
Track IPv4 and IPv6 Routes................................................................................................................................... 587
Set Tracking Delays..................................................................................................................................................588
VRRP Object Tracking.............................................................................................................................................589
Object Tracking Configuration.................................................................................................................................... 589
Tracking a Layer 2 Interface.................................................................................................................................. 589
Tracking a Layer 3 Interface.................................................................................................................................. 590
Track an IPv4/IPv6 Route.......................................................................................................................................591
Displaying Tracked Objects.......................................................................................................................................... 594
Chapter 34: Open Shortest Path First (OSPFv2 and OSPFv3)................................................... 596
Protocol Overview..........................................................................................................................................................596
Autonomous System (AS) Areas...........................................................................................................................596
Area Types.................................................................................................................................................................. 597
Networks and Neighbors.........................................................................................................................................598
Router Types..............................................................................................................................................................598
Designated and Backup Designated Routers..................................................................................................... 599
Link-State Advertisements (LSAs).......................................................................................................................599
Router Priority and Cost......................................................................................................................................... 600
OSPF with Dell EMC Networking OS......................................................................................................................... 601
Graceful Restart.........................................................................................................................................................601
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................ 602
Multi-Process OSPFv2 with VRF..........................................................................................................................603
RFC-2328 Compliant OSPF Flooding...................................................................................................................603
OSPF ACK Packing...................................................................................................................................................604
Setting OSPF Adjacency with Cisco Routers.................................................................................................... 604
Configuration Information.............................................................................................................................................605
Configuration Task List for OSPFv2 (OSPF for IPv4).................................................................................... 605
OSPFv3 NSSA.................................................................................................................................................................. 617
Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................................... 617
Enabling IPv6 Unicast Routing............................................................................................................................... 618
Applying cost for OSPFv3....................................................................................................................................... 618
Assigning IPv6 Addresses on an Interface.......................................................................................................... 619
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Assigning Area ID on an Interface..........................................................................................................................619
Assigning OSPFv3 Process ID and Router ID Globally..................................................................................... 619
Assigning OSPFv3 Process ID and Router ID to a VRF...................................................................................620
Configuring Stub Areas........................................................................................................................................... 620
Configuring Passive-Interface............................................................................................................................... 620
Redistributing Routes............................................................................................................................................... 621
Configuring a Default Route....................................................................................................................................621
Enabling OSPFv3 Graceful Restart....................................................................................................................... 621
OSPFv3 Authentication Using IPsec.................................................................................................................... 623
Troubleshooting OSPFv3........................................................................................................................................ 629
MIB Support for OSPFv3..............................................................................................................................................630
Viewing the OSPFv3 MIB....................................................................................................................................... 630
Chapter 35: Policy-based Routing (PBR)................................................................................... 631
Overview............................................................................................................................................................................631
Implementing PBR.......................................................................................................................................................... 632
Configuration Task List for Policy-based Routing.................................................................................................. 632
Create a Redirect List.............................................................................................................................................. 633
Create a Rule for a Redirect-list............................................................................................................................633
Apply a Redirect-list to an Interface using a Redirect-group........................................................................ 635
Sample Configuration.....................................................................................................................................................637
Chapter 36: PIM Sparse-Mode (PIM-SM).................................................................................. 641
Implementation Information.......................................................................................................................................... 641
Protocol Overview...........................................................................................................................................................641
Requesting Multicast Traffic...................................................................................................................................641
Refuse Multicast Traffic..........................................................................................................................................642
Send Multicast Traffic............................................................................................................................................. 642
Configuring PIM-SM...................................................................................................................................................... 642
Related Configuration Tasks.................................................................................................................................. 643
Enable PIM-SM................................................................................................................................................................643
Configuring S,G Expiry Timers.....................................................................................................................................644
Configuring a Static Rendezvous Point.................................................................................................................... 645
Overriding Bootstrap Router Updates................................................................................................................. 645
Configuring a Designated Router................................................................................................................................645
Creating Multicast Boundaries and Domains............................................................................................................647
Chapter 37: PIM Source-Specific Mode (PIM-SSM).................................................................. 648
Implementation Information......................................................................................................................................... 648
Configure PIM-SSM....................................................................................................................................................... 648
Enabling PIM-SSM..........................................................................................................................................................649
Use PIM-SSM with IGMP Version 2 Hosts.............................................................................................................. 649
Electing an RP using the BSR Mechanism................................................................................................................ 651
Enabling RP to Server Specific Multicast Groups............................................................................................ 652
Chapter 38: Port Monitoring..................................................................................................... 654
Important Points to Remember...................................................................................................................................654
Port Monitoring...............................................................................................................................................................655
Configuring Port Monitoring........................................................................................................................................ 657
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19
Configuring Monitor Multicast Queue....................................................................................................................... 658
Flow-Based Monitoring................................................................................................................................................. 659
Enabling Flow-Based Monitoring.......................................................................................................................... 660
Configuring IPv6 Flow-Based Mirroring...............................................................................................................661
Remote Port Mirroring.................................................................................................................................................. 663
Remote Port Mirroring Example............................................................................................................................664
Configuring Remote Port Mirroring......................................................................................................................664
Displaying Remote-Port Mirroring Configurations............................................................................................666
Configuration procedure for Remote Port Mirroring....................................................................................... 666
Encapsulated Remote Port Monitoring..................................................................................................................... 670
ERPM Behavior on a typical Dell EMC Networking OS ........................................................................................672
Port Monitoring on VLT.................................................................................................................................................673
Chapter 39: Per-VLAN Spanning Tree Plus (PVST+)..................................................................676
Protocol Overview.......................................................................................................................................................... 676
Implementation Information..........................................................................................................................................677
Configure Per-VLAN Spanning Tree Plus................................................................................................................. 678
Enabling PVST+...............................................................................................................................................................678
Disabling PVST+..............................................................................................................................................................678
Influencing PVST+ Root Selection..............................................................................................................................679
Modifying Global PVST+ Parameters........................................................................................................................ 680
Modifying Interface PVST+ Parameters................................................................................................................... 680
Configuring an EdgePort............................................................................................................................................... 681
PVST+ in Multi-Vendor Networks.............................................................................................................................. 682
Enabling PVST+ Extend System ID............................................................................................................................ 682
PVST+ Sample Configurations.................................................................................................................................... 683
Chapter 40: Quality of Service (QoS)........................................................................................ 685
Implementation Information..........................................................................................................................................687
Port-Based QoS Configurations..................................................................................................................................687
Setting dot1p Priorities for Incoming Traffic...................................................................................................... 687
Honoring dot1p Priorities on Ingress Traffic.......................................................................................................688
Configuring Port-Based Rate Policing................................................................................................................. 688
Configuring Port-Based Rate Shaping.................................................................................................................689
Policy-Based QoS Configurations...............................................................................................................................690
Classify Traffic...........................................................................................................................................................690
Dot1p to Queue Mapping Requirement................................................................................................................693
Create a QoS Policy................................................................................................................................................. 694
DSCP Color Maps..................................................................................................................................................... 696
Create Policy Maps.................................................................................................................................................. 698
Enabling QoS Rate Adjustment.................................................................................................................................... 701
Enabling Strict-Priority Queueing............................................................................................................................... 702
Queue Classification Requirements for PFC Functionality................................................................................... 702
Support for marking dot1p value in L3 Input Qos Policy....................................................................................... 702
Weighted Random Early Detection.............................................................................................................................703
Enabling and Disabling WRED Globally.................................................................................................................704
Creating WRED Profiles...........................................................................................................................................704
Applying a WRED Profile to Traffic...................................................................................................................... 704
Displaying Default and Configured WRED Profiles........................................................................................... 704
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