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Dell OS9, PowerSwitch S6010-ON User guide

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Dell Configuration Guide for the S6010–ON
System
9.14.2.8
September 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.
© 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....................................................................................................................................................................38
Entering and Editing Commands................................................................................................................................... 39
Command History..............................................................................................................................................................40
Filtering show Command Outputs.................................................................................................................................40
Multiple Users in Configuration Mode...........................................................................................................................41
Chapter 3: Getting Started..........................................................................................................42
Console Access..................................................................................................................................................................43
Serial Console............................................................................................................................................................... 43
Default Configuration....................................................................................................................................................... 44
Configuring a Host Name................................................................................................................................................ 44
Accessing the System Remotely................................................................................................................................... 44
Configure the Management Port IP Address........................................................................................................44
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
Moving a Command from EXEC Privilege Mode to EXEC Mode.................................................................... 56
Allowing Access to CONFIGURATION Mode Commands................................................................................. 56
Contents
Contents 3
Allowing Access to Different Modes...................................................................................................................... 56
Applying a Privilege Level to a Username..............................................................................................................57
Applying a Privilege Level to a Terminal Line........................................................................................................57
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..............................................................................................................................67
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............................................................................................................................................ 73
Configuring FTP Server Parameters.......................................................................................................................73
Configuring FTP Client Parameters........................................................................................................................ 73
Terminal Lines.....................................................................................................................................................................74
Denying and Permitting Access to a Terminal Line............................................................................................. 74
Configuring Login Authentication for Terminal Lines......................................................................................... 75
Setting Timeout for EXEC Privilege Mode..................................................................................................................76
Using Telnet to get to Another Network Device....................................................................................................... 76
Lock CONFIGURATION Mode........................................................................................................................................77
Restoring the Factory Default Settings....................................................................................................................... 77
Restoring Factory Default Environment Variables.............................................................................................. 78
Viewing the Reason for Last System Reboot.............................................................................................................79
Disabling Syslog Messages for SNMP Authentication Failure Events................................................................. 80
Chapter 5: 802.1X........................................................................................................................ 81
Port-Authentication Process..........................................................................................................................................82
EAP over RADIUS........................................................................................................................................................83
Configuring 802.1X............................................................................................................................................................84
Important Points to Remember..................................................................................................................................... 84
Enabling 802.1X................................................................................................................................................................. 85
Configuring Request Identity Re-Transmissions........................................................................................................86
Configuring a Quiet Period after a Failed Authentication..................................................................................87
Forcibly Authorizing or Unauthorizing a Port............................................................................................................. 87
Re-Authenticating a Port................................................................................................................................................ 88
4
Contents
Configuring Timeouts....................................................................................................................................................... 89
Configuring Dynamic VLAN Assignment with Port Authentication...................................................................... 90
Guest and Authentication-Fail VLANs.......................................................................................................................... 91
Configuring a Guest VLAN.........................................................................................................................................91
Configuring an Authentication-Fail VLAN.............................................................................................................. 91
Chapter 6: Access Control Lists (ACLs)...................................................................................... 93
IP Access Control Lists (ACLs)..................................................................................................................................... 94
CAM Usage................................................................................................................................................................... 94
Implementing ACLs on Dell EMC Networking OS............................................................................................... 95
Important Points to Remember..................................................................................................................................... 96
Configuration Task List for Route Maps................................................................................................................97
Configuring Match Routes........................................................................................................................................ 99
Configuring Set Conditions..................................................................................................................................... 100
Configure a Route Map for Route Redistribution.............................................................................................. 100
Configure a Route Map for Route Tagging..........................................................................................................101
Continue Clause.......................................................................................................................................................... 101
IP Fragment Handling..................................................................................................................................................... 102
IP Fragments ACL Examples...................................................................................................................................102
Layer 4 ACL Rules Examples...................................................................................................................................102
Configure a Standard IP ACL........................................................................................................................................103
Configuring a Standard IP ACL Filter....................................................................................................................104
Configure an Extended IP ACL.....................................................................................................................................105
Configuring Filters with a Sequence Number..................................................................................................... 105
Configuring Filters Without a Sequence Number.............................................................................................. 106
Configure Layer 2 and Layer 3 ACLs.......................................................................................................................... 107
Assign an IP ACL to an Interface................................................................................................................................. 107
Applying an IP ACL.......................................................................................................................................................... 107
Counting ACL Hits.....................................................................................................................................................108
Configure Ingress ACLs..................................................................................................................................................108
Configure Egress ACLs.................................................................................................................................................. 109
Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................. 110
IP Prefix Lists.................................................................................................................................................................... 110
Configuration Task List for Prefix Lists................................................................................................................. 111
ACL Remarks..................................................................................................................................................................... 114
Configuring a Remark................................................................................................................................................ 114
Deleting a Remark.......................................................................................................................................................114
ACL Resequencing........................................................................................................................................................... 115
Resequencing an ACL or Prefix List...................................................................................................................... 115
Route Maps........................................................................................................................................................................117
Flow-Based Monitoring................................................................................................................................................... 117
Enabling Flow-Based Monitoring............................................................................................................................ 118
Configuring IP Mirror Access Group............................................................................................................................119
Sample Configuration................................................................................................................................................120
Example of viewing IP mirror–access–group applied to an Interface.......................................................... 120
Chapter 7: Bidirectional Forwarding Detection (BFD)................................................................. 121
How BFD Works................................................................................................................................................................121
BFD Packet Format...................................................................................................................................................122
Contents
5
BFD Sessions.............................................................................................................................................................. 123
BFD Three-Way Handshake.................................................................................................................................... 124
Session State Changes.............................................................................................................................................125
Important Points to Remember....................................................................................................................................125
Configure BFD..................................................................................................................................................................125
Configure BFD for Physical Ports..........................................................................................................................126
Configure BFD for Static Routes........................................................................................................................... 127
Configure BFD for IPv6 Static Routes.................................................................................................................. 131
Configure BFD for OSPF..........................................................................................................................................133
Configure BFD for OSPFv3.....................................................................................................................................139
Configure BFD for IS-IS............................................................................................................................................ 141
Configure BFD for BGP............................................................................................................................................ 143
Configure BFD for VRRP......................................................................................................................................... 150
Configuring Protocol Liveness................................................................................................................................152
Chapter 8: Border Gateway Protocol (BGP)............................................................................... 153
BGP IP version 4 (BGPv4) Overview......................................................................................................................... 153
BGP Autonomous Systems......................................................................................................................................153
AS4 Number Representation.................................................................................................................................. 155
Four-Byte AS Numbers............................................................................................................................................ 157
BGP router ID..............................................................................................................................................................157
Sessions and Peers....................................................................................................................................................157
Establish a Session.................................................................................................................................................... 157
BGP Attributes for selecting Best Path............................................................................................................... 158
Multiprotocol BGP..................................................................................................................................................... 163
BGP global and address family configuration......................................................................................................164
Implement BGP with Dell EMC Networking OS................................................................................................. 165
Configuration Information........................................................................................................................................168
Basic BGP configuration tasks..................................................................................................................................... 169
Prerequisite for configuring a BGP network....................................................................................................... 169
Restrictions................................................................................................................................................................. 169
Enabling BGP.............................................................................................................................................................. 169
Enabling four-byte autonomous system numbers.............................................................................................. 171
Changing a BGP router ID........................................................................................................................................172
Configuring AS4 Number Representations..........................................................................................................172
Configuring a BGP peer............................................................................................................................................173
Example-Configuring BGP routing between peers............................................................................................ 174
BGP peer group..........................................................................................................................................................175
Advanced BGP configuration tasks.............................................................................................................................182
Route-refresh and Soft-reconfiguration.............................................................................................................. 182
Aggregating Routes...................................................................................................................................................184
Filtering BGP...............................................................................................................................................................186
Configuring BGP Fast Fall-Over............................................................................................................................. 191
Configuring Passive Peering................................................................................................................................... 193
Enabling Graceful Restart........................................................................................................................................194
Redistributing Routes............................................................................................................................................... 195
Enabling Additional Paths........................................................................................................................................ 195
Configuring IP Community Lists.............................................................................................................................196
Configuring an IP Extended Community List...................................................................................................... 197
Configure BGP attributes........................................................................................................................................ 198
6
Contents
Enabling Multipath.................................................................................................................................................... 202
Route Reflectors....................................................................................................................................................... 202
Enabling Route Flap Dampening............................................................................................................................203
Changing BGP keepalive and hold timers........................................................................................................... 205
Setting the extended timer.................................................................................................................................... 206
Enabling or disabling BGP neighbors....................................................................................................................206
Route Map Continue................................................................................................................................................ 208
Configuring BGP Confederations..........................................................................................................................208
Configuring a BGP VRF address family............................................................................................................... 209
Maintaining Existing AS Numbers During an AS Migration..............................................................................210
Allowing an AS Number to Appear in its Own AS Path..................................................................................... 211
Enabling MBGP Configurations...............................................................................................................................211
MBGP support for IPv6............................................................................................................................................212
Configuring IPv6 MBGP between peers.............................................................................................................. 212
Example-Configuring IPv4 and IPv6 neighbors.................................................................................................. 213
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor................................... 215
BGP Regular Expression Optimization..................................................................................................................216
Debugging BGP.......................................................................................................................................................... 217
Chapter 9: Content Addressable Memory (CAM)........................................................................219
CAM Allocation.................................................................................................................................................................219
Test CAM Usage..............................................................................................................................................................221
View CAM Profiles...........................................................................................................................................................221
View CAM-ACL Settings...............................................................................................................................................222
View CAM Usage............................................................................................................................................................ 223
Configuring CAM Threshold and Silence Period..................................................................................................... 224
CAM Optimization...........................................................................................................................................................225
Troubleshoot CAM Profiling......................................................................................................................................... 226
QoS CAM Region Limitation...................................................................................................................................226
Syslog Error When the Table is Full......................................................................................................................226
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................226
Syslog Warning for Discrepancies Between Configured Extended Prefixes.............................................. 226
Unified Forwarding Table (UFT) Modes....................................................................................................................226
Configuring UFT Modes...........................................................................................................................................227
Chapter 10: Control Plane Policing (CoPP)................................................................................ 228
Configure Control Plane Policing................................................................................................................................ 229
Configuring CoPP for Protocols............................................................................................................................230
Configuring CoPP for CPU Queues.......................................................................................................................231
Displaying CoPP Configuration .............................................................................................................................232
Chapter 11: Data Center Bridging (DCB).................................................................................... 234
Ethernet Enhancements in Data Center Bridging...................................................................................................234
Priority-Based Flow Control................................................................................................................................... 235
Enhanced Transmission Selection.........................................................................................................................236
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 237
Data Center Bridging in a Traffic Flow................................................................................................................ 238
Enabling Data Center Bridging.....................................................................................................................................238
DCB Maps and its Attributes..................................................................................................................................239
Contents
7
Data Center Bridging: Default Configuration........................................................................................................... 239
Configuring Priority-Based Flow Control.................................................................................................................. 240
Configuring Lossless Queues................................................................................................................................. 240
Configuring PFC in a DCB Map................................................................................................................................... 242
Applying a DCB Map on a Port.................................................................................................................................... 243
Configuring PFC without a DCB Map........................................................................................................................ 244
Priority-Based Flow Control Using Dynamic Buffer Method............................................................................... 245
Behavior of Tagged Packets........................................................................................................................................ 246
Configuration Example for DSCP and PFC Priorities.............................................................................................246
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................247
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................248
PFC and ETS Configuration Examples.......................................................................................................................249
Using PFC to Manage Converged Ethernet Traffic...............................................................................................249
Operations on Untagged Packets...............................................................................................................................249
Generation of PFC for a Priority for Untagged Packets.......................................................................................250
Configure Enhanced Transmission Selection........................................................................................................... 250
ETS Prerequisites and Restrictions...................................................................................................................... 250
Creating an ETS Priority Group.............................................................................................................................250
ETS Operation with DCBx....................................................................................................................................... 251
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 252
Configuring ETS in a DCB Map..............................................................................................................................252
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 253
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 254
Applying DCB Policies in a Switch Stack.................................................................................................................. 254
Configure a DCBx Operation........................................................................................................................................254
DCBx Operation.........................................................................................................................................................254
DCBx Port Roles....................................................................................................................................................... 255
DCB Configuration Exchange................................................................................................................................ 256
Configuration Source Election............................................................................................................................... 256
Propagation of DCB Information........................................................................................................................... 257
Auto-Detection and Manual Configuration of the DCBx Version..................................................................257
DCBx Example............................................................................................................................................................257
DCBx Prerequisites and Restrictions................................................................................................................... 258
Configuring DCBx..................................................................................................................................................... 258
Verifying the DCB Configuration................................................................................................................................. 261
QoS dot1p Traffic Classification and Queue Assignment......................................................................................270
Configuring the Dynamic Buffer Method.................................................................................................................. 270
Sample DCB Configuration............................................................................................................................................ 271
Chapter 12: Dynamic Host Configuration Protocol (DHCP)........................................................ 274
DHCP Packet Format and Options............................................................................................................................. 274
Assign an IP Address using DHCP.............................................................................................................................. 275
Implementation Information..........................................................................................................................................276
Configure the System to be a DHCP Server............................................................................................................277
Configuring the Server for Automatic Address Allocation.............................................................................. 277
Specifying a Default Gateway................................................................................................................................278
Configure a Method of Hostname Resolution....................................................................................................279
Using DNS for Address Resolution....................................................................................................................... 279
Using NetBIOS WINS for Address Resolution....................................................................................................279
Creating Manual Binding Entries........................................................................................................................... 279
8
Contents
Debugging the DHCP Server................................................................................................................................. 280
Using DHCP Clear Commands...............................................................................................................................280
Configure the System to be a DHCP Client............................................................................................................. 280
Configuring the DHCP Client System...................................................................................................................281
DHCP Client on a Management Interface...........................................................................................................282
DHCP Client Operation with Other Features.....................................................................................................282
DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 283
Configuring Route Leaking between VRFs on DHCP Relay Agent............................................................... 283
Non-default VRF configuration for DHCPv6 helper address............................................................................... 284
Configuring DHCP relay source interface.................................................................................................................285
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................285
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................285
Configure the System for User Port Stacking (Option 230)............................................................................... 286
Configure Secure DHCP................................................................................................................................................287
Option 82 (DHCPv4 relay options).......................................................................................................................287
DHCPv6 relay agent options.................................................................................................................................. 288
DHCP Snooping.........................................................................................................................................................288
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 292
Dynamic ARP Inspection......................................................................................................................................... 292
Configuring Dynamic ARP Inspection...................................................................................................................293
Source Address Validation............................................................................................................................................ 294
Enabling IP Source Address Validation................................................................................................................ 294
DHCP MAC Source Address Validation...............................................................................................................295
Enabling IP+MAC Source Address Validation.................................................................................................... 295
Viewing the Number of SAV Dropped Packets................................................................................................. 296
Clearing the Number of SAV Dropped Packets.................................................................................................296
Chapter 13: Equal Cost Multi-Path (ECMP)............................................................................... 297
ECMP for Flow-Based Affinity.................................................................................................................................... 297
Configuring the Hash Algorithm............................................................................................................................ 297
Enabling Deterministic ECMP Next Hop............................................................................................................. 297
Configuring the Hash Algorithm Seed..................................................................................................................298
Link Bundle Monitoring..................................................................................................................................................298
Managing ECMP Group Paths...............................................................................................................................299
Creating an ECMP Group Bundle..........................................................................................................................299
Modifying the ECMP Group Threshold................................................................................................................299
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table..............................300
Support for ECMP in host table............................................................................................................................300
Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ....................................................................300
Chapter 14: FIP Snooping...........................................................................................................301
Fibre Channel over Ethernet.........................................................................................................................................301
Ensure Robustness in a Converged Ethernet Network..........................................................................................301
FIP Snooping on Ethernet Bridges............................................................................................................................. 302
FIP Snooping in a Switch Stack.................................................................................................................................. 304
Using FIP Snooping........................................................................................................................................................ 304
FIP Snooping Prerequisites.....................................................................................................................................304
Important Points to Remember............................................................................................................................. 304
Enabling the FCoE Transit Feature.......................................................................................................................305
Contents
9
Enable FIP Snooping on VLANs.............................................................................................................................305
Configure the FC-MAP Value................................................................................................................................ 306
Configure a Port for a Bridge-to-Bridge Link.................................................................................................... 306
Configure a Port for a Bridge-to-FCF Link.........................................................................................................306
Impact on Other Software Features.................................................................................................................... 306
FIP Snooping Restrictions.......................................................................................................................................307
Configuring FIP Snooping........................................................................................................................................307
Displaying FIP Snooping Information..........................................................................................................................308
FCoE Transit Configuration Example..........................................................................................................................313
Chapter 15: Flex Hash and Optimized Boot-Up........................................................................... 315
Flex Hash Capability Overview.....................................................................................................................................315
Configuring the Flex Hash Mechanism.......................................................................................................................315
Configuring Fast Boot and LACP Fast Switchover.................................................................................................316
Optimizing the Boot Time..............................................................................................................................................316
Interoperation of Applications with Fast Boot and System States......................................................................317
RDMA Over Converged Ethernet (RoCE) Overview............................................................................................. 320
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces................................................................................. 320
Chapter 16: Force10 Resilient Ring Protocol (FRRP)..................................................................322
Protocol Overview.......................................................................................................................................................... 322
Ring Status................................................................................................................................................................. 323
Multiple FRRP Rings.................................................................................................................................................323
Important FRRP Points............................................................................................................................................324
Important FRRP Concepts......................................................................................................................................325
Implementing FRRP........................................................................................................................................................325
FRRP Configuration........................................................................................................................................................326
Creating the FRRP Group....................................................................................................................................... 326
Configuring the Control VLAN...............................................................................................................................326
Configuring and Adding the Member VLANs......................................................................................................327
Setting the FRRP Timers........................................................................................................................................ 328
Clearing the FRRP Counters.................................................................................................................................. 328
Viewing the FRRP Configuration...........................................................................................................................328
Viewing the FRRP Information.............................................................................................................................. 328
Troubleshooting FRRP...................................................................................................................................................329
Sample Configuration and Topology.......................................................................................................................... 329
FRRP Support on VLT................................................................................................................................................... 330
Chapter 17: GARP VLAN Registration Protocol (GVRP)............................................................. 333
Configure GVRP.............................................................................................................................................................. 334
Enabling GVRP Globally.................................................................................................................................................334
Enabling GVRP on a Layer 2 Interface...................................................................................................................... 335
Configure GVRP Registration...................................................................................................................................... 335
Configure a GARP Timer...............................................................................................................................................336
Chapter 18: Internet Group Management Protocol (IGMP).........................................................337
IGMP Protocol Overview.............................................................................................................................................. 337
IGMP Version 2..........................................................................................................................................................337
IGMP Version 3..........................................................................................................................................................339
10
Contents
Configure IGMP................................................................................................................................................................341
Viewing IGMP Enabled Interfaces...............................................................................................................................342
Selecting an IGMP Version........................................................................................................................................... 342
Viewing IGMP Groups....................................................................................................................................................343
Adjusting Timers..............................................................................................................................................................343
Adjusting Query and Response Timers................................................................................................................ 343
Enabling IGMP Immediate-Leave................................................................................................................................ 344
IGMP Snooping................................................................................................................................................................344
Configuring IGMP Snooping................................................................................................................................... 345
Removing a Group-Port Association.................................................................................................................... 345
Disabling Multicast Flooding................................................................................................................................... 346
Specifying a Port as Connected to a Multicast Router................................................................................... 346
Configuring the Switch as Querier........................................................................................................................346
Fast Convergence after MSTP Topology Changes................................................................................................ 347
Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................................... 347
Designating a Multicast Router Interface................................................................................................................. 354
Chapter 19: Interfaces...............................................................................................................355
Interface Types............................................................................................................................................................... 356
View Basic Interface Information................................................................................................................................356
Resetting an Interface to its Factory Default State...............................................................................................358
Enabling a Physical Interface....................................................................................................................................... 358
Physical Interfaces......................................................................................................................................................... 359
Configuration Task List for Physical Interfaces.................................................................................................359
40G to 1G Breakout Cable Adaptor...................................................................................................................... 359
Overview of Layer Modes.......................................................................................................................................360
Configuring Layer 2 (Data Link) Mode................................................................................................................ 360
Configuring Layer 2 (Interface) Mode.................................................................................................................360
Configuring Layer 3 (Network) Mode.................................................................................................................. 361
Configuring Layer 3 (Interface) Mode..................................................................................................................361
Automatic recovery of an Err-disabled interface....................................................................................................362
Configuring an automatic recovery for an Err-disabled interface.................................................................362
Egress Interface Selection (EIS).................................................................................................................................363
Configuring EIS..........................................................................................................................................................363
Management Interfaces................................................................................................................................................ 364
Configuring Management Interfaces....................................................................................................................364
Configuring a Management Interface on an Ethernet Port............................................................................365
VLAN Interfaces..............................................................................................................................................................366
Loopback Interfaces.......................................................................................................................................................367
Null Interfaces..................................................................................................................................................................367
Configuring Port Delay...................................................................................................................................................367
Port Channel Interfaces................................................................................................................................................ 368
Port Channel Definition and Standards............................................................................................................... 368
Port Channel Benefits..............................................................................................................................................368
Port Channel Implementation.................................................................................................................................368
Interfaces in Port Channels.................................................................................................................................... 369
Configuration Tasks for Port Channel Interfaces............................................................................................. 369
Creating a Port Channel..........................................................................................................................................369
Adding a Physical Interface to a Port Channel.................................................................................................. 370
Reassigning an Interface to a New Port Channel.............................................................................................. 371
Contents
11
Configuring the Minimum Oper Up Links in a Port Channel........................................................................... 372
Adding or Removing a Port Channel from a VLAN........................................................................................... 372
Assigning an IP Address to a Port Channel.........................................................................................................373
Deleting or Disabling a Port Channel.................................................................................................................... 373
Load Balancing Through Port Channels...............................................................................................................373
Changing the Hash Algorithm................................................................................................................................ 374
Bulk Configuration.......................................................................................................................................................... 375
Interface Range......................................................................................................................................................... 375
Bulk Configuration Examples..................................................................................................................................375
Defining Interface Range Macros................................................................................................................................377
Define the Interface Range.....................................................................................................................................377
Choosing an Interface-Range Macro....................................................................................................................377
Monitoring and Maintaining Interfaces...................................................................................................................... 377
Maintenance Using TDR.......................................................................................................................................... 378
Non Dell-Qualified Transceivers.................................................................................................................................. 379
Splitting 40G Ports without Reload............................................................................................................................379
Splitting QSFP Ports to SFP+ Ports...........................................................................................................................381
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port...............................................................................381
Link Dampening............................................................................................................................................................... 383
Enabling Link Dampening.........................................................................................................................................386
Link Bundle Monitoring.................................................................................................................................................. 387
Using Ethernet Pause Frames for Flow Control......................................................................................................387
Enabling Pause Frames............................................................................................................................................388
Configure the MTU Size on an Interface.................................................................................................................. 388
Port-Pipes.........................................................................................................................................................................389
Auto-Negotiation on Ethernet Interfaces................................................................................................................. 389
Setting the Speed of Ethernet Interfaces.......................................................................................................... 390
Set Auto-Negotiation Options................................................................................................................................ 391
View Advanced Interface Information....................................................................................................................... 392
Configuring the Interface Sampling Size.............................................................................................................392
Configuring the Traffic Sampling Size Globally....................................................................................................... 393
Dynamic Counters.......................................................................................................................................................... 395
Clearing Interface Counters................................................................................................................................... 395
Compressing Configuration Files................................................................................................................................ 396
Discard Counters.............................................................................................................................................................398
Display discard counters..........................................................................................................................................398
Chapter 20: IPv4 Routing.......................................................................................................... 400
IP Addresses..................................................................................................................................................................... 401
Configuration Tasks for IP Addresses........................................................................................................................ 401
Assigning IP Addresses to an Interface......................................................................................................................401
Configuring Static Routes.............................................................................................................................................402
Adding description for IPv4 and IPv6 static routes..........................................................................................403
Configure Static Routes for the Management Interface...................................................................................... 404
IPv4 Path MTU Discovery Overview..........................................................................................................................404
Using the Configured Source IP Address in ICMP Messages..............................................................................405
Configuring the Duration to Establish a TCP Connection.................................................................................... 405
Enabling Directed Broadcast........................................................................................................................................405
Resolution of Host Names............................................................................................................................................ 406
Enabling Dynamic Resolution of Host Names.......................................................................................................... 406
12
Contents
Specifying the Local System Domain and a List of Domains................................................................................407
Configuring DNS with Traceroute...............................................................................................................................407
ARP.................................................................................................................................................................................... 408
Configuration Tasks for ARP....................................................................................................................................... 408
Configuring Static ARP Entries................................................................................................................................... 408
Enabling Proxy ARP........................................................................................................................................................409
Clearing ARP Cache....................................................................................................................................................... 409
ARP Learning via Gratuitous ARP...............................................................................................................................409
Enabling ARP Learning via Gratuitous ARP..............................................................................................................409
ARP Learning via ARP Request....................................................................................................................................410
Configuring ARP Retries................................................................................................................................................ 410
ICMP....................................................................................................................................................................................411
Configuration Tasks for ICMP.......................................................................................................................................411
Enabling ICMP Unreachable Messages.......................................................................................................................411
ICMP Redirects.................................................................................................................................................................411
UDP Helper........................................................................................................................................................................412
Enabling UDP Helper.......................................................................................................................................................413
Configurations Using UDP Helper................................................................................................................................413
UDP Helper with Broadcast-All Addresses................................................................................................................413
UDP Helper with Subnet Broadcast Addresses....................................................................................................... 414
UDP Helper with Configured Broadcast Addresses................................................................................................414
UDP Helper with No Configured Broadcast Addresses......................................................................................... 415
Troubleshooting UDP Helper........................................................................................................................................ 415
Chapter 21: IPv6 Routing........................................................................................................... 416
Protocol Overview...........................................................................................................................................................416
Extended Address Space......................................................................................................................................... 416
Stateless Autoconfiguration....................................................................................................................................416
IPv6 Headers...............................................................................................................................................................417
Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support................................................................417
IPv6 Header Fields.....................................................................................................................................................418
Extension Header Fields.......................................................................................................................................... 420
Addressing................................................................................................................................................................... 421
Implementing IPv6 with Dell EMC Networking OS.................................................................................................422
ICMPv6..............................................................................................................................................................................423
Path MTU discovery.......................................................................................................................................................424
IPv6 Neighbor Discovery...............................................................................................................................................424
IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 425
Configuring the IPv6 Recursive DNS Server......................................................................................................425
Debugging IPv6 RDNSS Information Sent to the Host .................................................................................. 426
Displaying IPv6 RDNSS Information..................................................................................................................... 426
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................427
Configuration Tasks for IPv6........................................................................................................................................427
Adjusting Your CAM-Profile....................................................................................................................................427
Assigning an IPv6 Address to an Interface......................................................................................................... 428
Assigning a Static IPv6 Route................................................................................................................................428
Configuring Telnet with IPv6................................................................................................................................. 429
SNMP over IPv6........................................................................................................................................................429
Displaying IPv6 Information.................................................................................................................................... 429
Displaying an IPv6 Interface Information............................................................................................................ 430
Contents
13
Showing IPv6 Routes...............................................................................................................................................430
Showing the Running-Configuration for an Interface...................................................................................... 432
Clearing IPv6 Routes................................................................................................................................................432
Disabling ND Entry Timeout....................................................................................................................................432
Configuring IPv6 RA Guard.......................................................................................................................................... 433
Configuring IPv6 RA Guard on an Interface....................................................................................................... 434
Monitoring IPv6 RA Guard...................................................................................................................................... 434
Chapter 22: iSCSI Optimization.................................................................................................436
iSCSI Optimization Overview....................................................................................................................................... 436
Monitoring iSCSI Traffic Flows.............................................................................................................................. 437
Application of Quality of Service to iSCSI Traffic Flows................................................................................. 438
Information Monitored in iSCSI Traffic Flows....................................................................................................438
Detection and Auto-Configuration for Dell EqualLogic Arrays.......................................................................439
Configuring Detection and Ports for Dell Compellent Arrays.........................................................................439
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.......................................................... 439
Enable and Disable iSCSI Optimization................................................................................................................ 440
Default iSCSI Optimization Values..............................................................................................................................440
iSCSI Optimization Prerequisites................................................................................................................................. 441
Configuring iSCSI Optimization....................................................................................................................................441
Displaying iSCSI Optimization Information................................................................................................................443
Chapter 23: Intermediate System to Intermediate System.........................................................445
IS-IS Protocol Overview................................................................................................................................................445
IS-IS Addressing..............................................................................................................................................................445
Multi-Topology IS-IS...................................................................................................................................................... 446
Transition Mode.........................................................................................................................................................446
Interface Support......................................................................................................................................................446
Adjacencies.................................................................................................................................................................446
Graceful Restart.............................................................................................................................................................. 447
Timers...........................................................................................................................................................................447
Implementation Information..........................................................................................................................................447
Configuration Information.............................................................................................................................................448
Configuration Tasks for IS-IS................................................................................................................................. 448
Configuring the Distance of a Route....................................................................................................................455
Changing the IS-Type.............................................................................................................................................. 455
Redistributing IPv4 Routes..................................................................................................................................... 458
Redistributing IPv6 Routes.....................................................................................................................................458
Configuring Authentication Passwords............................................................................................................... 459
Setting the Overload Bit......................................................................................................................................... 459
Debugging IS-IS.........................................................................................................................................................460
IS-IS Metric Styles...........................................................................................................................................................461
Configure Metric Values................................................................................................................................................ 461
Maximum Values in the Routing Table..................................................................................................................461
Change the IS-IS Metric Style in One Level Only..............................................................................................461
Leaks from One Level to Another......................................................................................................................... 463
Sample Configurations...................................................................................................................................................463
Chapter 24: Link Aggregation Control Protocol (LACP)............................................................. 466
14
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Introduction to Dynamic LAGs and LACP.................................................................................................................466
Important Points to Remember............................................................................................................................. 466
LACP Modes...............................................................................................................................................................467
Configuring LACP Commands................................................................................................................................467
LACP Configuration Tasks............................................................................................................................................467
Creating a LAG.......................................................................................................................................................... 468
Configuring the LAG Interfaces as Dynamic...................................................................................................... 468
Setting the LACP Long Timeout........................................................................................................................... 469
Monitoring and Debugging LACP..........................................................................................................................469
Shared LAG State Tracking..........................................................................................................................................469
Configuring Shared LAG State Tracking............................................................................................................. 470
Important Points about Shared LAG State Tracking.........................................................................................471
LACP Basic Configuration Example............................................................................................................................472
Configure a LAG on ALPHA....................................................................................................................................472
Chapter 25: Layer 2................................................................................................................... 480
Manage the MAC Address Table................................................................................................................................ 480
Clearing the MAC Address Table.......................................................................................................................... 480
Setting the Aging Time for Dynamic Entries...................................................................................................... 480
Configuring a Static MAC Address........................................................................................................................481
Displaying the MAC Address Table........................................................................................................................481
MAC Learning Limit.........................................................................................................................................................481
Setting the MAC Learning Limit............................................................................................................................ 482
mac learning-limit Dynamic..................................................................................................................................... 482
mac learning-limit mac-address-sticky................................................................................................................ 482
mac learning-limit station-move............................................................................................................................ 482
mac learning-limit no-station-move......................................................................................................................483
Learning Limit Violation Actions............................................................................................................................ 483
Setting Station Move Violation Actions...............................................................................................................483
Recovering from Learning Limit and Station Move Violations.......................................................................484
Enabling port security.............................................................................................................................................. 484
NIC Teaming.....................................................................................................................................................................484
Configure Redundant Pairs.......................................................................................................................................... 485
Far-End Failure Detection.............................................................................................................................................488
FEFD State Changes................................................................................................................................................489
Configuring FEFD......................................................................................................................................................489
Enabling FEFD on an Interface.............................................................................................................................. 490
Debugging FEFD........................................................................................................................................................ 491
Chapter 26: Link Layer Discovery Protocol (LLDP).................................................................... 493
802.1AB (LLDP) Overview............................................................................................................................................493
Protocol Data Units.................................................................................................................................................. 493
Optional TLVs.................................................................................................................................................................. 495
Management TLVs....................................................................................................................................................495
TIA-1057 (LLDP-MED) Overview............................................................................................................................... 496
TIA Organizationally Specific TLVs....................................................................................................................... 497
Configure LLDP...............................................................................................................................................................500
CONFIGURATION versus INTERFACE Configurations..........................................................................................501
Enabling LLDP.................................................................................................................................................................. 501
Contents
15
Disabling and Undoing LLDP................................................................................................................................... 501
Enabling LLDP on Management Ports.......................................................................................................................502
Disabling and Undoing LLDP on Management Ports........................................................................................502
Advertising TLVs.............................................................................................................................................................502
Storing and Viewing Unrecognized LLDP TLVs...................................................................................................... 503
Viewing the LLDP Configuration.................................................................................................................................504
Viewing Information Advertised by Adjacent LLDP Neighbors........................................................................... 505
Examples of Viewing Information Advertised by Neighbors...........................................................................505
Configuring LLDPDU Intervals.....................................................................................................................................507
Configuring LLDP Notification Interval..................................................................................................................... 508
Configuring LLDP Notification Interval..................................................................................................................... 508
Configuring Transmit and Receive Mode..................................................................................................................508
Configuring the Time to Live Value............................................................................................................................509
Debugging LLDP.............................................................................................................................................................. 510
Relevant Management Objects.....................................................................................................................................511
Chapter 27: Microsoft Network Load Balancing......................................................................... 516
Configuring a Switch for NLB ..................................................................................................................................... 517
Enabling a Switch for Multicast NLB.................................................................................................................... 518
Chapter 28: Multicast Source Discovery Protocol (MSDP).........................................................519
Anycast RP.......................................................................................................................................................................520
Implementation Information.......................................................................................................................................... 521
Configure Multicast Source Discovery Protocol......................................................................................................521
Related Configuration Tasks................................................................................................................................... 521
Enable MSDP................................................................................................................................................................... 525
Manage the Source-Active Cache..............................................................................................................................526
Viewing the Source-Active Cache........................................................................................................................ 526
Limiting the Source-Active Cache........................................................................................................................526
Clearing the Source-Active Cache........................................................................................................................527
Enabling the Rejected Source-Active Cache..................................................................................................... 527
Accept Source-Active Messages that Fail the RFP Check.................................................................................. 527
Specifying Source-Active Messages..........................................................................................................................530
Limiting the Source-Active Messages from a Peer.................................................................................................531
Preventing MSDP from Caching a Local Source.....................................................................................................531
Preventing MSDP from Caching a Remote Source................................................................................................532
Preventing MSDP from Advertising a Local Source.............................................................................................. 532
Logging Changes in Peership States......................................................................................................................... 533
Terminating a Peership..................................................................................................................................................533
Clearing Peer Statistics................................................................................................................................................. 533
Debugging MSDP............................................................................................................................................................534
MSDP with Anycast RP.................................................................................................................................................534
Configuring Anycast RP................................................................................................................................................ 535
Reducing Source-Active Message Flooding.......................................................................................................536
Specifying the RP Address Used in SA Messages............................................................................................536
MSDP Sample Configurations......................................................................................................................................538
Chapter 29: Multicast Listener Discovery Protocol.................................................................... 541
MLD timers.......................................................................................................................................................................544
16
Contents
Reducing Host Response Burstiness....................................................................................................................544
Configuring MLD Version..............................................................................................................................................545
Clearing MLD groups..................................................................................................................................................... 545
Debugging MLD...............................................................................................................................................................545
Explicit Tracking..............................................................................................................................................................545
Reducing Leave Latency...............................................................................................................................................545
Displaying MLD groups table........................................................................................................................................546
Displaying MLD Interfaces............................................................................................................................................546
Chapter 30: Multiple Spanning Tree Protocol (MSTP)............................................................... 547
Spanning Tree Variations.............................................................................................................................................. 548
Implementation Information....................................................................................................................................548
Configure Multiple Spanning Tree Protocol............................................................................................................. 548
Related Configuration Tasks.................................................................................................................................. 548
Enable Multiple Spanning Tree Globally.................................................................................................................... 549
Adding and Removing Interfaces................................................................................................................................ 549
Creating Multiple Spanning Tree Instances..............................................................................................................549
Influencing MSTP Root Selection................................................................................................................................551
Interoperate with Non-Dell Bridges............................................................................................................................ 551
Changing the Region Name or Revision.....................................................................................................................551
Modifying Global Parameters.......................................................................................................................................552
Modifying the Interface Parameters.......................................................................................................................... 553
Setting STP path cost as constant............................................................................................................................ 554
Configuring an EdgePort...............................................................................................................................................554
Flush MAC Addresses after a Topology Change.................................................................................................... 555
MSTP Sample Configurations......................................................................................................................................555
Debugging and Verifying MSTP Configurations......................................................................................................559
Chapter 31: Multicast Features.................................................................................................. 561
Enabling IP Multicast...................................................................................................................................................... 561
Implementation Information.......................................................................................................................................... 561
Multicast Policies............................................................................................................................................................ 562
IPv4 Multicast Policies.............................................................................................................................................562
Understanding Multicast Traceroute (mtrace)....................................................................................................... 569
Printing Multicast Traceroute (mtrace) Paths........................................................................................................569
Supported Error Codes...................................................................................................................................................571
mtrace Scenarios............................................................................................................................................................ 572
Chapter 32: Multicast Listener Discovery Protocol.................................................................... 578
MLD timers........................................................................................................................................................................581
Reducing Host Response Burstiness.................................................................................................................... 581
Clearing MLD groups..................................................................................................................................................... 582
Debugging MLD...............................................................................................................................................................582
Explicit Tracking.............................................................................................................................................................. 582
Reducing Leave Latency............................................................................................................................................... 582
Displaying MLD groups table........................................................................................................................................582
Displaying MLD Interfaces............................................................................................................................................ 583
MLD Snooping................................................................................................................................................................. 583
Enable MLD Snooping..............................................................................................................................................583
Contents
17
Disable MLD Snooping............................................................................................................................................. 583
Configure the switch as a querier.........................................................................................................................584
Specify port as connected to multicast router..................................................................................................584
Enable Snooping Explicit Tracking........................................................................................................................ 584
Display the MLD Snooping Table.......................................................................................................................... 584
Chapter 33: Object Tracking......................................................................................................585
Object Tracking Overview............................................................................................................................................ 585
Track Layer 2 Interfaces......................................................................................................................................... 586
Track Layer 3 Interfaces......................................................................................................................................... 586
Track IPv4 and IPv6 Routes................................................................................................................................... 587
Set Tracking Delays..................................................................................................................................................588
VRRP Object Tracking.............................................................................................................................................588
Object Tracking Configuration.....................................................................................................................................588
Tracking a Layer 2 Interface.................................................................................................................................. 588
Tracking a Layer 3 Interface.................................................................................................................................. 589
Track an IPv4/IPv6 Route......................................................................................................................................590
Displaying Tracked Objects.......................................................................................................................................... 593
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)........................................................................................... 618
Enabling IPv6 Unicast Routing............................................................................................................................... 618
Applying cost for OSPFv3....................................................................................................................................... 618
Assigning IPv6 Addresses on an Interface...........................................................................................................619
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
18
Contents
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)...................................................................................632
Overview........................................................................................................................................................................... 632
Implementing PBR.......................................................................................................................................................... 633
Configuration Task List for Policy-based Routing.................................................................................................. 633
Create a Redirect List.............................................................................................................................................. 634
Create a Rule for a Redirect-list............................................................................................................................634
Apply a Redirect-list to an Interface using a Redirect-group.........................................................................636
Sample Configuration.....................................................................................................................................................638
Chapter 36: PIM Sparse-Mode (PIM-SM).................................................................................. 642
Implementation Information..........................................................................................................................................642
Protocol Overview..........................................................................................................................................................642
Requesting Multicast Traffic..................................................................................................................................642
Refuse Multicast Traffic..........................................................................................................................................643
Send Multicast Traffic............................................................................................................................................. 643
Configuring PIM-SM...................................................................................................................................................... 643
Related Configuration Tasks.................................................................................................................................. 644
Enable PIM-SM................................................................................................................................................................644
Configuring S,G Expiry Timers.....................................................................................................................................646
Configuring a Static Rendezvous Point.....................................................................................................................646
Overriding Bootstrap Router Updates................................................................................................................. 647
Configuring a Designated Router................................................................................................................................ 647
Creating Multicast Boundaries and Domains........................................................................................................... 649
Electing an RP using the BSR Mechanism............................................................................................................... 649
Chapter 37: PIM Source-Specific Mode (PIM-SSM)...................................................................651
Implementation Information.......................................................................................................................................... 651
Configure PIM-SSM........................................................................................................................................................651
Enabling PIM-SSM..........................................................................................................................................................652
Use PIM-SSM with IGMP Version 2 Hosts.............................................................................................................. 652
Electing an RP using the BSR Mechanism............................................................................................................... 653
Enabling RP to Server Specific Multicast Groups............................................................................................ 655
Chapter 38: Port Monitoring..................................................................................................... 656
Important Points to Remember...................................................................................................................................656
Port Monitoring............................................................................................................................................................... 657
Configuring Port Monitoring........................................................................................................................................ 658
Configuring Monitor Multicast Queue....................................................................................................................... 659
Enabling Flow-Based Monitoring................................................................................................................................ 660
Remote Port Mirroring................................................................................................................................................... 661
Remote Port Mirroring Example.............................................................................................................................661
Configuring Remote Port Mirroring......................................................................................................................662
Displaying Remote-Port Mirroring Configurations............................................................................................663
Contents
19
Configuration procedure for Remote Port Mirroring....................................................................................... 664
Encapsulated Remote Port Monitoring..................................................................................................................... 668
ERPM Behavior on a typical Dell EMC Networking OS ........................................................................................670
Port Monitoring on VLT..................................................................................................................................................671
Chapter 39: Per-VLAN Spanning Tree Plus (PVST+)..................................................................674
Protocol Overview.......................................................................................................................................................... 674
Implementation Information..........................................................................................................................................675
Configure Per-VLAN Spanning Tree Plus................................................................................................................. 676
Enabling PVST+...............................................................................................................................................................676
Disabling PVST+..............................................................................................................................................................676
Influencing PVST+ Root Selection..............................................................................................................................677
Modifying Global PVST+ Parameters.........................................................................................................................678
Modifying Interface PVST+ Parameters................................................................................................................... 678
Configuring an EdgePort...............................................................................................................................................679
PVST+ in Multi-Vendor Networks.............................................................................................................................. 680
Enabling PVST+ Extend System ID............................................................................................................................ 680
PVST+ Sample Configurations..................................................................................................................................... 681
Chapter 40: Quality of Service (QoS)........................................................................................ 683
Implementation Information......................................................................................................................................... 685
Port-Based QoS Configurations..................................................................................................................................685
Setting dot1p Priorities for Incoming Traffic......................................................................................................685
Honoring dot1p Priorities on Ingress Traffic.......................................................................................................686
Configuring Port-Based Rate Policing................................................................................................................. 686
Configuring Port-Based Rate Shaping.................................................................................................................687
Policy-Based QoS Configurations...............................................................................................................................688
Classify Traffic...........................................................................................................................................................688
Dot1p to Queue Mapping Requirement................................................................................................................ 691
Create a QoS Policy................................................................................................................................................. 692
DSCP Color Maps..................................................................................................................................................... 694
Create Policy Maps.................................................................................................................................................. 696
Enabling QoS Rate Adjustment................................................................................................................................... 699
Enabling Strict-Priority Queueing............................................................................................................................... 699
Queue Classification Requirements for PFC Functionality................................................................................... 700
Support for marking dot1p value in L3 Input Qos Policy....................................................................................... 700
Weighted Random Early Detection..............................................................................................................................701
Creating WRED Profiles........................................................................................................................................... 701
Applying a WRED Profile to Traffic.......................................................................................................................702
Displaying Default and Configured WRED Profiles........................................................................................... 702
Displaying WRED Drop Statistics.......................................................................................................................... 702
Displaying egress–queue Statistics...................................................................................................................... 702
Pre-Calculating Available QoS CAM Space.............................................................................................................. 703
Specifying Policy-Based Rate Shaping in Packets Per Second...........................................................................704
Configuring Policy-Based Rate Shaping....................................................................................................................704
Configuring Weights and ECN for WRED ................................................................................................................705
Configuring WRED and ECN Attributes.................................................................................................................... 706
Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................................... 707
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.......................... 707
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