Dell EMC Networking Configuration Guide for
the C9010 Series
Version 9.14.2.5
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
NOTE: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
2020 - 01
Rev. A00
1 About this Guide......................................................................................................................... 32
Audience............................................................................................................................................................................... 32
Conventions......................................................................................................................................................................... 32
Related Documents.............................................................................................................................................................32
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
3 Getting Started..........................................................................................................................42
Console Access....................................................................................................................................................................42
Serial Console.................................................................................................................................................................42
Mounting an NFS File System........................................................................................................................................... 43
Default Configuration..........................................................................................................................................................45
Configuring a Host Name...................................................................................................................................................45
Accessing the System Remotely.......................................................................................................................................45
Configure the Management Port IP Address............................................................................................................ 45
Configure a Management Route................................................................................................................................. 46
Configuring a Username and Password......................................................................................................................46
Configuring the Enable Password..................................................................................................................................... 46
Manage Configuration Files................................................................................................................................................47
File Storage.....................................................................................................................................................................47
Copy Files to and from the System.............................................................................................................................47
Save the Running-Configuration................................................................................................................................. 48
Configure the Overload Bit for a Startup Scenario...................................................................................................49
Viewing Files...................................................................................................................................................................49
Changes in Configuration Files.................................................................................................................................... 49
Viewing Command History.................................................................................................................................................50
Upgrading the Dell Networking OS....................................................................................................................................51
4 Switch Management...................................................................................................................53
Configuring Privilege Levels...............................................................................................................................................53
Removing a Command from EXEC Mode..................................................................................................................53
Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................... 53
Allowing Access to CONFIGURATION Mode Commands....................................................................................... 53
Allowing Access to the Following Modes................................................................................................................... 54
Contents
Contents 3
Applying a Privilege Level to a Username...................................................................................................................55
Applying a Privilege Level to a Terminal Line............................................................................................................. 55
Configuring Logging............................................................................................................................................................55
Audit and Security Logs................................................................................................................................................56
Configuring Logging Format .................................................................................................................................57
Setting Up a Secure Connection to a Syslog Server.......................................................................................57
Track Login Activity............................................................................................................................................................ 58
Restrictions for Tracking Login Activity..................................................................................................................... 59
Configuring Login Activity Tracking............................................................................................................................ 59
Display Login Statistics................................................................................................................................................. 59
Limit Concurrent Login Sessions........................................................................................................................................61
Restrictions for Limiting the Number of Concurrent Sessions.................................................................................61
Configuring Concurrent Session Limit.........................................................................................................................61
Enabling the System to Clear Existing Sessions.........................................................................................................61
Enabling Secured CLI Mode...............................................................................................................................................62
Log Messages in the Internal Buffer.................................................................................................................................62
Disabling System Logging...................................................................................................................................................62
Sending System Messages to a Syslog Server............................................................................................................... 63
Configuring a UNIX System as a Syslog Server........................................................................................................ 63
Display the Logging Buffer and the Logging Configuration...........................................................................................63
Changing System Logging Settings..................................................................................................................................64
Configuring a UNIX Logging Facility Level.......................................................................................................................64
Synchronizing Log Messages............................................................................................................................................ 65
Enabling Timestamp on Syslog Messages....................................................................................................................... 66
File Transfer Services..........................................................................................................................................................67
Enabling the FTP Server...............................................................................................................................................67
Configuring FTP Server Parameters...........................................................................................................................67
Configuring FTP Client Parameters............................................................................................................................ 68
Terminal Lines...................................................................................................................................................................... 68
Denying and Permitting Access to a Terminal Line...................................................................................................68
Configuring Login Authentication for Terminal Lines................................................................................................69
Setting Time Out of EXEC Privilege Mode...................................................................................................................... 70
Using Telnet to Access Another Network Device...........................................................................................................70
Lock CONFIGURATION Mode.......................................................................................................................................... 70
LPC Bus Quality Degradation..............................................................................................................................................71
Recovering from a Forgotten Password ......................................................................................................................... 72
Ignoring the Startup Configuration and Booting from the Factory-Default Configuration........................................73
Recovering from a Failed Start..........................................................................................................................................73
Restoring Factory-Default Settings.................................................................................................................................. 73
Restoring Factory-Default Boot Environment Variables.......................................................................................... 74
Using Hashes to Verify Software Images Before Installation............................................................................ 75
Verifying System Images on C9010 Components........................................................................................................... 76
When System Images on C9010 Components Do Not Match.................................................................................77
Manually Resetting the System Image on a C9010 Component............................................................................. 77
Logging in to the Virtual Console of a C9010 Component....................................................................................... 77
Booting the C9010 from an Image on a Network Server......................................................................................... 78
Configuring C9010 Components to Boot from the RPM CP Image.......................................................................78
Viewing the Reason for Last System Reboot..................................................................................................................79
5 802.1X.......................................................................................................................................80
4
Contents
The Port-Authentication Process..................................................................................................................................... 82
EAP over RADIUS..........................................................................................................................................................82
Configuring 802.1X..............................................................................................................................................................83
Important Points to Remember.........................................................................................................................................83
Enabling 802.1X....................................................................................................................................................................84
Configuring dot1x Profile ................................................................................................................................................... 86
Configuring MAC addresses for a do1x Profile................................................................................................................86
Configuring the Static MAB and MAB Profile ................................................................................................................ 87
Configuring Critical VLAN ..................................................................................................................................................87
Configuring Request Identity Re-Transmissions............................................................................................................. 88
Configuring a Quiet Period after a Failed Authentication...............................................................................................89
Forcibly Authorizing or Unauthorizing a Port...................................................................................................................89
Re-Authenticating a Port................................................................................................................................................... 90
Configuring Dynamic VLAN Assignment with Port Authentication...............................................................................91
Guest and Authentication-Fail VLANs..............................................................................................................................92
Configuring a Guest VLAN........................................................................................................................................... 92
Configuring an Authentication-Fail VLAN.................................................................................................................. 93
Configuring Timeouts....................................................................................................................................................94
Multi-Host Authentication..................................................................................................................................................95
Multi-Supplicant Authentication........................................................................................................................................ 97
MAC Authentication Bypass..............................................................................................................................................99
MAB in Single-host and Multi-Host Mode................................................................................................................. 99
MAB in Multi-Supplicant Authentication Mode.........................................................................................................99
Configuring MAC Authentication Bypass...................................................................................................................99
Dynamic CoS with 802.1X................................................................................................................................................ 100
6 Access Control Lists (ACLs)...................................................................................................... 102
IP Access Control Lists (ACLs)........................................................................................................................................102
CAM Usage...................................................................................................................................................................103
User-Configurable CAM Allocation............................................................................................................................104
Allocating CAM for Ingress ACLs on the Port Extender.........................................................................................104
Allocating CAM for Egress ACLs on the Port Extender......................................................................................... 105
Implementing ACLs on Dell EMC Networking OS................................................................................................... 106
ACL Optimization to Increase Number of Supported IPv4 ACLs................................................................................107
Optimizing ACL for More Number of IPv4 ACL Rules............................................................................................ 108
IP Fragment Handling........................................................................................................................................................108
IP Fragments ACL Examples...................................................................................................................................... 108
Layer 4 ACL Rules Examples...................................................................................................................................... 109
Configure a Standard IP ACL............................................................................................................................................110
Configuring a Standard IP ACL Filter......................................................................................................................... 110
Configure an Extended IP ACL..........................................................................................................................................111
Configuring Filters with a Sequence Number............................................................................................................ 111
Configuring Filters Without a Sequence Number.....................................................................................................112
Configure Layer 2 and Layer 3 ACLs............................................................................................................................... 113
Using ACL VLAN Groups...................................................................................................................................................113
Guidelines for Configuring ACL VLAN Groups..........................................................................................................114
Configuring an ACL VLAN Group............................................................................................................................... 114
Allocating ACL VLAN CAM..........................................................................................................................................115
Applying an IP ACL............................................................................................................................................................. 115
Applying Ingress ACLs on the Port Extender............................................................................................................116
Contents
5
Applying Egress ACLs...................................................................................................................................................116
Applying Layer 3 Egress ACLs on Control-Plane Traffic......................................................................................... 117
Counting ACL Hits........................................................................................................................................................ 117
IP Prefix Lists.......................................................................................................................................................................117
Configuration Task List for Prefix Lists......................................................................................................................118
ACL Remarks.......................................................................................................................................................................121
Configuring a Remark...................................................................................................................................................121
Deleting a Remark.........................................................................................................................................................121
ACL Resequencing.............................................................................................................................................................122
Resequencing an ACL or Prefix List.......................................................................................................................... 122
Route Maps........................................................................................................................................................................ 123
Important Points to Remember........................................................................................................................................124
Configuration Task List for Route Maps................................................................................................................... 124
Configuring Match Routes..........................................................................................................................................126
Configuring Set Conditions......................................................................................................................................... 127
Configure a Route Map for Route Redistribution.................................................................................................... 128
Configure a Route Map for Route Tagging.............................................................................................................. 128
Continue Clause........................................................................................................................................................... 128
Configuring a UDF ACL.....................................................................................................................................................129
Hot-Lock Behavior.............................................................................................................................................................130
7 Bidirectional Forwarding Detection (BFD)....................................................................................131
How BFD Works................................................................................................................................................................. 131
BFD Packet Format..................................................................................................................................................... 132
BFD Sessions................................................................................................................................................................ 133
BFD Three-Way Handshake....................................................................................................................................... 134
Session State Changes................................................................................................................................................135
Important Points to Remember....................................................................................................................................... 135
Configure BFD....................................................................................................................................................................135
Configure BFD for Physical Ports.............................................................................................................................. 136
Configure BFD for Static Routes............................................................................................................................... 137
Configure BFD for IPv6 Static Routes......................................................................................................................140
Configure BFD for OSPF............................................................................................................................................. 141
Configure BFD for OSPFv3........................................................................................................................................ 145
Configure BFD for IS-IS...............................................................................................................................................147
Configure BFD for BGP...............................................................................................................................................149
Configure BFD for VRRP............................................................................................................................................ 154
Configuring Protocol Liveness....................................................................................................................................157
8 Border Gateway Protocol IPv4 (BGPv4)......................................................................................158
Autonomous Systems (AS).............................................................................................................................................. 158
Sessions and Peers............................................................................................................................................................160
Establish a Session.......................................................................................................................................................160
Route Reflectors.................................................................................................................................................................161
BGP Attributes................................................................................................................................................................... 162
Best Path Selection Criteria........................................................................................................................................162
Weight........................................................................................................................................................................... 164
Local Preference.......................................................................................................................................................... 164
Multi-Exit Discriminators (MEDs).............................................................................................................................. 165
6
Contents
Origin............................................................................................................................................................................. 165
AS Path......................................................................................................................................................................... 166
Next Hop.......................................................................................................................................................................166
Multiprotocol BGP............................................................................................................................................................. 166
Implement BGP ................................................................................................................................................................. 167
Advertise IGP Cost as MED for Redistributed Routes............................................................................................167
Ignore Router-ID for Some Best-Path Calculations.................................................................................................167
Four-Byte AS Numbers............................................................................................................................................... 167
AS4 Number Representation......................................................................................................................................168
AS Number Migration..................................................................................................................................................169
BGP4 Management Information Base (MIB)........................................................................................................... 170
Important Points to Remember...................................................................................................................................171
Configuration Information..................................................................................................................................................171
BGP Configuration............................................................................................................................................................. 172
Enabling BGP................................................................................................................................................................ 172
Configuring AS4 Number Representations...............................................................................................................175
Configuring Peer Groups.............................................................................................................................................176
Configuring BGP Fast Fail-Over.................................................................................................................................178
Configuring Passive Peering.......................................................................................................................................180
Maintaining Existing AS Numbers During an AS Migration.................................................................................... 180
Allowing an AS Number to Appear in its Own AS Path........................................................................................... 181
Filtering on an AS-Path Attribute...............................................................................................................................182
Regular Expressions as Filters.................................................................................................................................... 183
Redistributing Routes.................................................................................................................................................. 184
Enabling Additional Paths............................................................................................................................................184
Configuring IP Community Lists.................................................................................................................................185
Configuring an IP Extended Community List............................................................................................................186
Filtering Routes with Community Lists..................................................................................................................... 186
Manipulating the COMMUNITY Attribute.................................................................................................................187
Changing MED Attributes...........................................................................................................................................188
Changing the LOCAL_PREFERENCE Attribute......................................................................................................188
Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes................189
Changing the WEIGHT Attribute............................................................................................................................... 189
Enabling Multipath....................................................................................................................................................... 190
Filtering BGP Routes................................................................................................................................................... 190
Filtering BGP Routes Using Route Maps...................................................................................................................191
Filtering BGP Routes Using AS-PATH Information................................................................................................. 192
Configuring BGP Route Reflectors............................................................................................................................192
Aggregating Routes..................................................................................................................................................... 193
Configuring BGP Confederations...............................................................................................................................193
Enabling Route Flap Dampening.................................................................................................................................193
Changing BGP Timers................................................................................................................................................. 195
Setting the extended timer.........................................................................................................................................196
Enabling BGP Neighbor Soft-Reconfiguration.........................................................................................................196
Enabling or disabling BGP neighbors......................................................................................................................... 197
Route Map Continue....................................................................................................................................................198
Enabling MBGP Configurations........................................................................................................................................199
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor.............................................199
BGP Regular Expression Optimization........................................................................................................................... 200
Debugging BGP.................................................................................................................................................................200
Contents
7
Storing Last and Bad PDUs....................................................................................................................................... 200
Capturing PDUs............................................................................................................................................................201
PDU Counters..............................................................................................................................................................202
Sample Configurations......................................................................................................................................................202
9 Content Addressable Memory (CAM).......................................................................................... 211
CAM Allocation....................................................................................................................................................................211
Test CAM Usage................................................................................................................................................................212
View CAM-ACL Settings.................................................................................................................................................. 212
View CAM Usage............................................................................................................................................................... 213
Configuring CAM Threshold and Silence Period............................................................................................................214
Return to the Default CAM Configuration......................................................................................................................215
CAM Optimization............................................................................................................................................................. 215
Applications for CAM Profiling......................................................................................................................................... 216
Unified Forwarding Table (UFT) Modes......................................................................................................................... 216
Configuring UFT Modes..............................................................................................................................................216
10 Control Plane Policing (CoPP).................................................................................................. 218
Z9500 CoPP Implementation...........................................................................................................................................218
CoPP Example...................................................................................................................................................................220
Configure Control Plane Policing..................................................................................................................................... 221
Configuring CoPP for Protocols.................................................................................................................................221
Examples of Configuring CoPP for Protocols..........................................................................................................222
Configuring CoPP for CPU Queues..........................................................................................................................223
Examples of Configuring CoPP for CPU Queues....................................................................................................224
Displaying CoPP Configuration..................................................................................................................................224
Troubleshooting CoPP Operation................................................................................................................................... 227
11 Data Center Bridging (DCB)..................................................................................................... 234
Enabling Data Center Bridging.........................................................................................................................................234
Ethernet Enhancements in Data Center Bridging.........................................................................................................235
Priority-Based Flow Control.......................................................................................................................................235
Enhanced Transmission Selection.............................................................................................................................236
Data Center Bridging Exchange Protocol (DCBx).................................................................................................. 237
Data Center Bridging in a Traffic Flow..................................................................................................................... 238
QoS dot1p Traffic Classification and Queue Assignment.............................................................................................238
SNMP Support for PFC and Buffer Statistics Tracking.............................................................................................. 239
DCB Maps and its Attributes...........................................................................................................................................240
Applying a DCB Map on a Line Card.........................................................................................................................243
Data Center Bridging: Default Configuration.................................................................................................................243
Configuration Notes: PFC and ETS in a DCB Map.......................................................................................................243
Configuring Priority-Based Flow Control....................................................................................................................... 245
Configuring Lossless Queues.....................................................................................................................................246
Configuring Enhanced Transmission Selection............................................................................................................. 246
Creating an ETS Priority Group................................................................................................................................. 247
ETS Operation with DCBx..........................................................................................................................................247
Configure a DCBx Operation........................................................................................................................................... 248
DCBx Operation...........................................................................................................................................................248
DCBx Port Roles..........................................................................................................................................................248
8
Contents
DCB Configuration Exchange....................................................................................................................................250
Configuration Source Election...................................................................................................................................250
Propagation of DCB Information...............................................................................................................................250
Auto-Detection and Manual Configuration of the DCBx Version..........................................................................251
Behavior of Tagged Packets...................................................................................................................................... 251
Configuration Example for DSCP and PFC Priorities.............................................................................................. 251
DCBx Example............................................................................................................................................................. 252
DCBx Prerequisites and Restrictions........................................................................................................................253
Configuring DCBx........................................................................................................................................................253
Verifying the DCB Configuration.....................................................................................................................................256
Performing PFC Using DSCP Bits Instead of 802.1p Bits........................................................................................... 265
PFC and ETS Configuration Examples...........................................................................................................................266
Using PFC and ETS to Manage Data Center Traffic................................................................................................... 266
Using PFC and ETS to Manage Converged Ethernet Traffic............................................................................... 268
Hierarchical Scheduling in ETS Output Policies.......................................................................................................268
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................................................269
Configuring the Dynamic Buffer Method.......................................................................................................................270
12 Debugging and Diagnostics....................................................................................................... 271
Offline Diagnostics............................................................................................................................................................. 271
Running Port Extender Offline Diagnostics on the Switch.....................................................................................271
Running Offline Diagnostics on a Standalone Switch............................................................................................. 277
TRACE Logs.......................................................................................................................................................................297
Auto Save on Reload, Crash, or Rollover..................................................................................................................297
Uploading Trace Logs................................................................................................................................................. 297
Last Restart Reason..........................................................................................................................................................297
show hardware Commands............................................................................................................................................. 298
Environmental Monitoring................................................................................................................................................299
Displaying Port Extender Environment Information .............................................................................................. 300
Display Power Supply Status.....................................................................................................................................300
Display Fan Status........................................................................................................................................................301
Display Transceiver Type............................................................................................................................................ 301
Recognize an Over-Temperature Condition............................................................................................................303
Troubleshoot an Over-Temperature Condition....................................................................................................... 303
Troubleshooting Packet Loss.......................................................................................................................................... 305
Displaying Drop Counters...........................................................................................................................................306
Displaying Dataplane Statistics.................................................................................................................................. 307
Displaying Line-Card Counters.................................................................................................................................. 308
Accessing Application Core Dumps................................................................................................................................ 309
Mini Core Dumps...............................................................................................................................................................309
Full Kernel Core Dumps.....................................................................................................................................................310
Enabling TCP Dumps.........................................................................................................................................................310
Accessing Port Extender Core and Mini Core Dumps................................................................................................... 311
13 Dynamic Host Configuration Protocol (DHCP)........................................................................... 312
DHCP Packet Format and Options..................................................................................................................................312
Assign an IP Address using DHCP................................................................................................................................... 313
Implementation Information..............................................................................................................................................314
Configure the System to be a DHCP Server................................................................................................................. 315
Contents
9
Configuring the Server for Automatic Address Allocation......................................................................................315
Specifying a Default Gateway.................................................................................................................................... 316
Configure a Method of Hostname Resolution..........................................................................................................316
Using DNS for Address Resolution............................................................................................................................ 316
Using NetBIOS WINS for Address Resolution..........................................................................................................317
Creating Manual Binding Entries................................................................................................................................ 317
Debugging the DHCP Server......................................................................................................................................317
Using DHCP Clear Commands................................................................................................................................... 317
Configure the System to be a Relay Agent.................................................................................................................... 318
Configure the System to be a DHCP Client................................................................................................................... 319
DHCP Client on a Management Interface................................................................................................................ 319
DHCP Client Operation with Other Features.......................................................................................................... 320
DHCP Relay When DHCP Server and Client are in Different VRFs...........................................................................320
Configuring Route Leaking between VRFs on DHCP Relay Agent....................................................................... 321
Non-default VRF configuration for DHCPv6 helper address...................................................................................... 322
Configuring DHCP relay source interface...................................................................................................................... 322
Global DHCP relay source IPv4 or IPv6 configuration ...........................................................................................322
Interface level DHCP relay source IPv4 or IPv6 configuration .............................................................................323
Configure Secure DHCP.................................................................................................................................................. 324
Option 82 (DHCPv4 relay options)........................................................................................................................... 324
DHCPv6 relay agent options..................................................................................................................................... 325
DHCP Snooping...........................................................................................................................................................325
Drop DHCP Packets on Snooped VLANs Only........................................................................................................327
Dynamic ARP Inspection.............................................................................................................................................327
Configuring Dynamic ARP Inspection....................................................................................................................... 328
Source Address Validation............................................................................................................................................... 329
Enabling IP Source Address Validation..................................................................................................................... 329
DHCP MAC Source Address Validation................................................................................................................... 330
Enabling IP+MAC Source Address Validation..........................................................................................................330
Viewing the Number of SAV Dropped Packets.......................................................................................................330
Clearing the Number of SAV Dropped Packets....................................................................................................... 331
14 Equal Cost Multi-Path (ECMP).................................................................................................332
ECMP for Flow-Based Affinity........................................................................................................................................ 332
Enabling Deterministic ECMP Next Hop.................................................................................................................. 332
Configuring the Hash Algorithm Seed...................................................................................................................... 332
Link Bundle Monitoring............................................................................................................................................... 333
Managing ECMP Group Paths........................................................................................................................................ 333
Creating an ECMP Group Bundle................................................................................................................................... 333
Modifying the ECMP Group Threshold.......................................................................................................................... 334
BGP Multipath Operation with Link Bankwidth............................................................................................................ 334
Dynamic Re-calculation of Link Bankwidth....................................................................................................................336
Weighted ECMP for Static Routes.................................................................................................................................336
ECMP Support in L3 Host and LPM Tables.................................................................................................................. 336
15 FCoE Transit...........................................................................................................................338
Fibre Channel over Ethernet............................................................................................................................................338
Ensure Robustness in a Converged Ethernet Network............................................................................................... 338
FIP Snooping on Ethernet Bridges..................................................................................................................................339
10
Contents
FIP Snooping in a Switch Stack....................................................................................................................................... 341
Using FIP Snooping............................................................................................................................................................341
FIP Snooping Prerequisites.........................................................................................................................................341
Important Points to Remember..................................................................................................................................341
Enabling the FCoE Transit Feature........................................................................................................................... 342
Enable FIP Snooping on VLANs.................................................................................................................................342
Configure the FC-MAP Value....................................................................................................................................342
Configure a Port for a Bridge-to-Bridge Link.......................................................................................................... 342
Configure a Port for a Bridge-to-FCF Link.............................................................................................................. 343
Impact on Other Software Features.........................................................................................................................343
FIP Snooping Restrictions.......................................................................................................................................... 343
Configuring FIP Snooping.................................................................................................................................................343
Displaying FIP Snooping Information.............................................................................................................................. 344
FCoE Transit Configuration Example..............................................................................................................................349
16 FIPS Cryptography.................................................................................................................. 351
Configuration Tasks...........................................................................................................................................................351
Preparing the System........................................................................................................................................................351
Enabling FIPS Mode.......................................................................................................................................................... 351
Generating Host-Keys...................................................................................................................................................... 352
Monitoring FIPS Mode Status.........................................................................................................................................352
Disabling FIPS Mode.........................................................................................................................................................353
17 Flex Hash and Optimized Boot-Up.............................................................................................354
Flex Hash Capability Overview........................................................................................................................................354
Configuring the Flex Hash Mechanism...........................................................................................................................354
LACP Fast Switchover.....................................................................................................................................................355
Configuring LACP Fast Switchover................................................................................................................................355
LACP...................................................................................................................................................................................355
RDMA Over Converged Ethernet (RoCE) Overview...................................................................................................355
Sample Configurations..................................................................................................................................................... 356
Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces........................................................................................ 359
18 Force10 Resilient Ring Protocol (FRRP).................................................................................... 360
Protocol Overview............................................................................................................................................................ 360
Ring Status....................................................................................................................................................................361
Multiple FRRP Rings.................................................................................................................................................... 361
Important FRRP Points............................................................................................................................................... 361
Implementing FRRP.................................................................................................................................................... 362
Important FRRP Concepts.........................................................................................................................................362
FRRP Configuration..........................................................................................................................................................363
Creating the FRRP Group.......................................................................................................................................... 363
Configuring the Control VLAN...................................................................................................................................363
Configuring and Adding the Member VLANs.......................................................................................................... 364
Setting the FRRP Timers........................................................................................................................................... 365
Clearing the FRRP Counters..................................................................................................................................... 365
Viewing the FRRP Configuration.............................................................................................................................. 365
Viewing the FRRP Information.................................................................................................................................. 366
Troubleshooting FRRP..................................................................................................................................................... 366
Contents
11
Sample Configuration and Topology...............................................................................................................................366
FRRP Support on VLT......................................................................................................................................................367
19 GARP VLAN Registration Protocol (GVRP)................................................................................370
Configure GVRP................................................................................................................................................................370
Enabling GVRP Globally.....................................................................................................................................................371
Enabling GVRP on a Layer 2 Interface........................................................................................................................... 372
Configure GVRP Registration..........................................................................................................................................372
Configure a GARP Timer.................................................................................................................................................. 372
20 High Availability (HA).............................................................................................................. 374
High Availability on Chassis.............................................................................................................................................. 374
High Availability in a PE Stack..........................................................................................................................................374
Online Insertion and Removal...........................................................................................................................................374
Hitless Behavior................................................................................................................................................................. 376
Graceful Restart................................................................................................................................................................ 376
Software Resiliency...........................................................................................................................................................377
System Health Monitoring..........................................................................................................................................377
Failure and Event Logging.......................................................................................................................................... 377
Trace Log......................................................................................................................................................................377
Core Dumps..................................................................................................................................................................377
System Log...................................................................................................................................................................377
Control Plane Redundancy...............................................................................................................................................377
Control-Plane Failover................................................................................................................................................ 378
RPM Synchronization................................................................................................................................................. 379
Forcing an RPM Failover............................................................................................................................................ 379
Specifying an Auto-Failover Limit..............................................................................................................................379
Disabling Auto-Reboot................................................................................................................................................ 379
21 Internet Group Management Protocol (IGMP)........................................................................... 380
IGMP Protocol Overview................................................................................................................................................. 380
IGMP Version 2............................................................................................................................................................380
IGMP Version 3............................................................................................................................................................ 381
Configure IGMP.................................................................................................................................................................384
Viewing IGMP Enabled Interfaces...................................................................................................................................384
Selecting an IGMP Version.............................................................................................................................................. 385
Viewing IGMP Groups...................................................................................................................................................... 385
Enabling IGMP Immediate-Leave....................................................................................................................................386
IGMP Snooping................................................................................................................................................................. 386
Configuring IGMP Snooping...................................................................................................................................... 386
Removing a Group-Port Association.........................................................................................................................387
Disabling Multicast Flooding.......................................................................................................................................387
Specifying a Port as Connected to a Multicast Router..........................................................................................387
Configuring the Switch as Querier............................................................................................................................388
Fast Convergence after MSTP Topology Changes......................................................................................................388
Designating a Multicast Router Interface...................................................................................................................... 388
22 Interfaces.............................................................................................................................. 389
Port Numbering.................................................................................................................................................................390
12
Contents
Interface Types..................................................................................................................................................................392
View Basic Interface Information.................................................................................................................................... 393
Resetting an Interface to its Factory Default State..................................................................................................... 398
Enabling a Physical Interface........................................................................................................................................... 399
Physical Interfaces............................................................................................................................................................ 399
Port Pipes.....................................................................................................................................................................399
Setting the Speed of Ethernet Interfaces................................................................................................................399
Configuration Task List for Physical Interfaces.......................................................................................................400
Overview of Layer Modes..........................................................................................................................................400
Configuring Layer 2 (Data Link) Mode.....................................................................................................................400
Configuring Layer 2 (Interface) Mode...................................................................................................................... 401
Configuring Layer 3 (Network) Mode.......................................................................................................................401
Configuring Layer 3 (Interface) Mode......................................................................................................................402
Egress Interface Selection (EIS)..................................................................................................................................... 402
Configuring EIS............................................................................................................................................................402
Management Interfaces................................................................................................................................................... 403
Configuring a Dedicated Management Interface ...................................................................................................403
Configuring a Management Interface on an Ethernet Port...................................................................................404
Port Extender Interfaces..................................................................................................................................................405
VLAN Interfaces................................................................................................................................................................405
Loopback Interfaces......................................................................................................................................................... 406
Null Interfaces....................................................................................................................................................................406
Configuring Port Delay..................................................................................................................................................... 406
Port Channel Interfaces....................................................................................................................................................407
Port Channel Definition and Standards.................................................................................................................... 407
Port Channel Benefits.................................................................................................................................................407
Port Channel Implementation.................................................................................................................................... 407
10/40 Gbps Interfaces in Port Channels..................................................................................................................408
Configuration Tasks for Port Channel Interfaces................................................................................................... 408
Creating a Port Channel.............................................................................................................................................408
Adding a Physical Interface to a Port Channel........................................................................................................409
Reassigning an Interface to a New Port Channel....................................................................................................410
Configuring the Minimum Oper Up Links in a Port Channel....................................................................................411
Adding or Removing a Port Channel from a VLAN.................................................................................................. 411
Assigning an IP Address to a Port Channel...............................................................................................................412
Deleting or Disabling a Port Channel......................................................................................................................... 412
Load Balancing Through Port Channels....................................................................................................................412
Changing the Hash Algorithm.....................................................................................................................................412
Bulk Configuration..............................................................................................................................................................413
Interface Range............................................................................................................................................................413
Bulk Configuration Examples...................................................................................................................................... 413
Defining Interface Range Macros.................................................................................................................................... 415
Define the Interface Range.........................................................................................................................................415
Choosing an Interface-Range Macro........................................................................................................................ 415
Monitoring and Maintaining Interfaces........................................................................................................................... 415
Maintenance Using TDR............................................................................................................................................. 416
Displaying Traffic Statistics on HiGig Ports.................................................................................................................... 417
Link Bundle Monitoring......................................................................................................................................................417
Monitoring HiGig Link Bundles......................................................................................................................................... 418
Enabling HiGig Link-Bundle Monitoring.....................................................................................................................419
Contents
13
Non Dell-Qualified Transceivers.......................................................................................................................................419
Splitting QSFP Ports to SFP+ Ports.............................................................................................................................. 420
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................................... 420
Configuring wavelength for 10–Gigabit SFP+ optics....................................................................................................421
Link Dampening.................................................................................................................................................................. 421
Enabling Link Dampening............................................................................................................................................422
Using Ethernet Pause Frames for Flow Control........................................................................................................... 423
Threshold Settings...................................................................................................................................................... 424
Enabling Pause Frames...............................................................................................................................................424
Configure the MTU Size on an Interface.......................................................................................................................425
Auto-Negotiation on Ethernet Interfaces...................................................................................................................... 425
Set Auto-Negotiation Options................................................................................................................................... 426
Provisioning Combo Ports................................................................................................................................................426
View Advanced Interface Information............................................................................................................................ 427
Configuring the Interface Sampling Size.................................................................................................................. 427
Configuring the Traffic Sampling Size Globally............................................................................................................. 428
Dynamic Counters.............................................................................................................................................................430
Clearing Interface Counters.......................................................................................................................................430
23 Internet Protocol Security (IPSec)........................................................................................... 432
Configuring IPSec .............................................................................................................................................................432
24 IPv4 Routing.......................................................................................................................... 434
IP Addresses...................................................................................................................................................................... 434
Configuration Tasks for IP Addresses............................................................................................................................ 434
Assigning IP Addresses to an Interface..........................................................................................................................435
Configuring Static Routes................................................................................................................................................436
Adding description for IPv4 and IPv6 static routes.................................................................................................437
Configure Static Routes for the Management Interface............................................................................................. 437
Enabling Directed Broadcast............................................................................................................................................438
Resolution of Host Names............................................................................................................................................... 438
Enabling Dynamic Resolution of Host Names................................................................................................................438
Specifying the Local System Domain and a List of Domains.......................................................................................439
Configuring DNS with Traceroute.................................................................................................................................. 439
ARP..................................................................................................................................................................................... 440
Configuration Tasks for ARP..................................................................................................................................... 440
Configuring Static ARP Entries................................................................................................................................. 440
Configuring ARP Inspection Trust..............................................................................................................................441
Configuring ARP Timeout........................................................................................................................................... 441
Enabling Proxy ARP..................................................................................................................................................... 441
Clearing ARP Cache.....................................................................................................................................................441
ARP Learning via Gratuitous ARP............................................................................................................................. 442
Enabling ARP Learning via Gratuitous ARP............................................................................................................. 442
ARP Learning via ARP Request.................................................................................................................................442
Configuring ARP Retries.............................................................................................................................................443
ICMP................................................................................................................................................................................... 443
Configuration Tasks for ICMP................................................................................................................................... 443
Enabling ICMP Unreachable Messages....................................................................................................................444
ICMP Redirects................................................................................................................................................................. 444
14
Contents
25 IPv6 Routing.......................................................................................................................... 446
Protocol Overview............................................................................................................................................................ 446
Extended Address Space........................................................................................................................................... 446
Stateless Autoconfiguration.......................................................................................................................................446
IPv6 Headers................................................................................................................................................................447
IPv6 Header Fields...................................................................................................................................................... 448
Extension Header Fields............................................................................................................................................. 449
IPv6 Addressing...........................................................................................................................................................450
IPv6 Implementation on the Dell Networking OS.......................................................................................................... 451
Configuring the LPM Table for IPv6 Extended Prefixes..............................................................................................452
ICMPv6...............................................................................................................................................................................452
Path MTU Discovery........................................................................................................................................................ 453
IPv6 Neighbor Discovery..................................................................................................................................................453
IPv6 Neighbor Discovery of MTU Packets.............................................................................................................. 454
Configuring the IPv6 Recursive DNS Server...........................................................................................................454
Secure Shell (SSH) Over an IPv6 Transport.................................................................................................................456
Configuration Tasks for IPv6...........................................................................................................................................456
Adjusting Your CAM Profile....................................................................................................................................... 456
Assigning an IPv6 Address to an Interface...............................................................................................................457
Assigning a Static IPv6 Route....................................................................................................................................457
Configuring Telnet with IPv6..................................................................................................................................... 457
SNMP over IPv6..........................................................................................................................................................458
Displaying IPv6 Information........................................................................................................................................458
Displaying an IPv6 Configuration...............................................................................................................................458
Displaying IPv6 Routes............................................................................................................................................... 459
Displaying the Running Configuration for an Interface...........................................................................................460
Clearing IPv6 Routes.................................................................................................................................................. 460
Disabling ND Entry Timeout........................................................................................................................................461
Configuring IPv6 RA Guard.............................................................................................................................................. 461
Configuring IPv6 RA Guard on an Interface............................................................................................................ 462
Monitoring IPv6 RA Guard......................................................................................................................................... 463
26 Intermediate System to Intermediate System........................................................................... 464
IS-IS Protocol Overview...................................................................................................................................................464
IS-IS Addressing................................................................................................................................................................ 464
Multi-Topology IS-IS.........................................................................................................................................................465
Transition Mode...........................................................................................................................................................465
Interface Support........................................................................................................................................................ 465
Adjacencies.................................................................................................................................................................. 465
Graceful Restart................................................................................................................................................................466
Timers........................................................................................................................................................................... 466
Implementation Information.............................................................................................................................................466
Configuration Information................................................................................................................................................ 467
Configuration Tasks for IS-IS.....................................................................................................................................467
Configuring the Distance of a Route.........................................................................................................................474
Changing the IS-Type................................................................................................................................................. 474
Redistributing IPv4 Routes.........................................................................................................................................476
Redistributing IPv6 Routes.........................................................................................................................................476
Contents
15
Configuring Authentication Passwords.....................................................................................................................477
Setting the Overload Bit............................................................................................................................................. 477
Debugging IS-IS........................................................................................................................................................... 478
IS-IS Metric Styles.............................................................................................................................................................479
Configure Metric Values...................................................................................................................................................479
Maximum Values in the Routing Table......................................................................................................................479
Change the IS-IS Metric Style in One Level Only....................................................................................................479
Leaks from One Level to Another..............................................................................................................................481
Sample Configurations...................................................................................................................................................... 481
27 iSCSI Optimization..................................................................................................................484
iSCSI Optimization Overview...........................................................................................................................................484
Default iSCSI Optimization Values.................................................................................................................................. 485
iSCSI Optimization Prerequisites.....................................................................................................................................486
Configuring iSCSI Optimization.......................................................................................................................................486
Displaying iSCSI Optimization Information..................................................................................................................... 487
Enable and Disable iSCSI Optimization...........................................................................................................................489
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................................................ 489
Monitoring iSCSI Traffic Flows........................................................................................................................................490
Information Monitored in iSCSI Traffic Flows............................................................................................................... 490
Detection and Auto-Configuration for Dell EqualLogic Arrays....................................................................................490
Configuring Detection and Ports for Dell Compellent Arrays.......................................................................................491
Application of Quality of Service to iSCSI Traffic Flows...............................................................................................491
28 Link Aggregation Control Protocol (LACP)................................................................................492
Introduction to Dynamic LAGs and LACP......................................................................................................................492
Important Points to Remember.................................................................................................................................492
LACP Modes................................................................................................................................................................492
Configuring LACP Commands...................................................................................................................................493
LACP Configuration Tasks...............................................................................................................................................493
Creating a LAG............................................................................................................................................................ 493
Configuring the LAG Interfaces as Dynamic............................................................................................................494
Setting the LACP Long Timeout............................................................................................................................... 494
Monitoring and Debugging LACP..............................................................................................................................495
Shared LAG State Tracking.............................................................................................................................................495
Configuring Shared LAG State Tracking..................................................................................................................496
Important Points about Shared LAG State Tracking.............................................................................................. 497
LACP Basic Configuration Example................................................................................................................................ 497
Configure a LAG on ALPHA....................................................................................................................................... 497
29 Layer 2.................................................................................................................................. 506
Manage the MAC Address Table....................................................................................................................................506
Clearing the MAC Address Table..............................................................................................................................506
Setting the Aging Time for Dynamic Entries........................................................................................................... 506
Configuring a Static MAC Address...........................................................................................................................506
Displaying the MAC Address Table........................................................................................................................... 507
MAC Learning Limit.......................................................................................................................................................... 507
Setting the MAC Learning Limit................................................................................................................................507
mac learning-limit Dynamic........................................................................................................................................ 508
16
Contents
mac learning-limit mac-address-sticky.....................................................................................................................508
mac learning-limit station-move................................................................................................................................508
mac learning-limit no-station-move..........................................................................................................................508
Learning Limit Violation Actions................................................................................................................................ 508
Setting Station Move Violation Actions................................................................................................................... 509
Recovering from Learning Limit and Station Move Violations.............................................................................. 509
Disabling MAC Address Learning on the System....................................................................................................509
Enabling port security..................................................................................................................................................510
NIC Teaming.......................................................................................................................................................................510
Configure Redundant Pairs............................................................................................................................................... 511
Far-End Failure Detection.................................................................................................................................................514
FEFD State Changes................................................................................................................................................... 514
Configuring FEFD.........................................................................................................................................................515
Enabling FEFD on an Interface...................................................................................................................................516
Debugging FEFD.......................................................................................................................................................... 516
30 Link Layer Discovery Protocol (LLDP)....................................................................................... 518
802.1AB (LLDP) Overview............................................................................................................................................... 518
Protocol Data Units..................................................................................................................................................... 518
Optional TLVs.....................................................................................................................................................................519
Management TLVs...................................................................................................................................................... 519
TIA-1057 (LLDP-MED) Overview...................................................................................................................................520
TIA Organizationally Specific TLVs............................................................................................................................ 521
Configure LLDP.................................................................................................................................................................524
CONFIGURATION versus INTERFACE Configurations............................................................................................... 524
Enabling LLDP................................................................................................................................................................... 525
Disabling and Undoing LLDP......................................................................................................................................525
Enabling LLDP on Management Ports........................................................................................................................... 525
Disabling and Undoing LLDP on Management Ports..............................................................................................526
Advertising TLVs............................................................................................................................................................... 526
Storing and Viewing Unrecognized LLDP TLVs............................................................................................................527
Viewing the LLDP Configuration.....................................................................................................................................528
Viewing Information Advertised by Adjacent LLDP Neighbors...................................................................................528
Examples of Viewing Information Advertised by Neighbors..................................................................................528
Configuring LLDPDU Intervals........................................................................................................................................ 530
Configuring LLDP Notification Interval........................................................................................................................... 531
Configuring Transmit and Receive Mode....................................................................................................................... 531
Configuring a Time to Live...............................................................................................................................................532
Debugging LLDP................................................................................................................................................................532
Relevant Management Objects.......................................................................................................................................533
31 Multicast Source Discovery Protocol (MSDP)............................................................................538
Anycast RP........................................................................................................................................................................ 539
Implementation Information.............................................................................................................................................540
Configure Multicast Source Discovery Protocol...........................................................................................................540
Related Configuration Tasks......................................................................................................................................540
Enable MSDP.....................................................................................................................................................................544
Manage the Source-Active Cache................................................................................................................................. 545
Viewing the Source-Active Cache............................................................................................................................545
Contents
17
Limiting the Source-Active Cache............................................................................................................................ 545
Clearing the Source-Active Cache............................................................................................................................545
Enabling the Rejected Source-Active Cache...........................................................................................................546
Accept Source-Active Messages that Fail the RFP Check.........................................................................................546
Specifying Source-Active Messages..............................................................................................................................549
Limiting the Source-Active Messages from a Peer......................................................................................................550
Preventing MSDP from Caching a Local Source..........................................................................................................550
Preventing MSDP from Caching a Remote Source.....................................................................................................550
Preventing MSDP from Advertising a Local Source..................................................................................................... 551
Logging Changes in Peership States..............................................................................................................................552
Terminating a Peership.....................................................................................................................................................552
Clearing Peer Statistics.................................................................................................................................................... 552
Debugging MSDP..............................................................................................................................................................553
MSDP with Anycast RP................................................................................................................................................... 553
Configuring Anycast RP................................................................................................................................................... 554
Reducing Source-Active Message Flooding............................................................................................................555
Specifying the RP Address Used in SA Messages..................................................................................................555
MSDP Sample Configurations......................................................................................................................................... 557
32 Multiple Spanning Tree Protocol (MSTP)................................................................................. 562
Spanning Tree Variations................................................................................................................................................. 563
Implementation Information.......................................................................................................................................563
Configure Multiple Spanning Tree Protocol...................................................................................................................563
Related Configuration Tasks......................................................................................................................................563
Enable Multiple Spanning Tree Globally......................................................................................................................... 563
Adding and Removing Interfaces.................................................................................................................................... 564
Creating Multiple Spanning Tree Instances................................................................................................................... 564
Influencing MSTP Root Selection...................................................................................................................................565
Interoperate with Non-Dell Bridges................................................................................................................................ 566
Changing the Region Name or Revision.........................................................................................................................566
Modifying Global Parameters.......................................................................................................................................... 566
Modifying the Interface Parameters...............................................................................................................................567
Configuring an EdgePort..................................................................................................................................................568
Flush MAC Addresses after a Topology Change.......................................................................................................... 569
MSTP Sample Configurations......................................................................................................................................... 569
Debugging and Verifying MSTP Configurations............................................................................................................572
33 Multicast Features.................................................................................................................. 574
Enabling IP Multicast.........................................................................................................................................................574
Implementation Information............................................................................................................................................. 574
First Packet Forwarding for Lossless Multicast............................................................................................................ 575
Multicast Policies...............................................................................................................................................................575
IPv4 Multicast Policies................................................................................................................................................575
Understanding Multicast Traceroute (mtrace)..............................................................................................................581
Printing Multicast Traceroute (mtrace) Paths..............................................................................................................582
Supported Error Codes.................................................................................................................................................... 583
mtrace Scenarios.............................................................................................................................................................. 583
34 Multicast Listener Discovery Protocol...................................................................................... 589
18
Contents
MLD timers........................................................................................................................................................................ 592
Reducing Host Response Burstiness........................................................................................................................592
Configuring MLD Version.................................................................................................................................................593
Clearing MLD groups........................................................................................................................................................593
Debugging MLD.................................................................................................................................................................593
Explicit Tracking................................................................................................................................................................ 593
Reducing Leave Latency..................................................................................................................................................593
Displaying MLD groups table........................................................................................................................................... 593
Displaying MLD Interfaces............................................................................................................................................... 594
MLD Snooping...................................................................................................................................................................594
Enable MLD Snooping................................................................................................................................................ 594
Disable MLD Snooping................................................................................................................................................594
Configure the switch as a querier............................................................................................................................. 595
Specify port as connected to multicast router....................................................................................................... 595
Enable Snooping Explicit Tracking............................................................................................................................ 595
Display the MLD Snooping Table.............................................................................................................................. 595
35 Object Tracking......................................................................................................................596
Object Tracking Overview............................................................................................................................................... 596
Track Layer 2 Interfaces.............................................................................................................................................597
Track Layer 3 Interfaces.............................................................................................................................................597
Track IPv4 and IPv6 Routes...................................................................................................................................... 597
Track a Metric Threshold........................................................................................................................................... 598
Tracking a Metric Threshold......................................................................................................................................598
Track Route Reachability........................................................................................................................................... 599
Tracking Route Reachability...................................................................................................................................... 599
Configuring track reachability refresh interval........................................................................................................ 600
Set Tracking Delays..................................................................................................................................................... 601
VRRP Object Tracking................................................................................................................................................ 601
Object Tracking Configuration......................................................................................................................................... 601
Tracking a Layer 2 Interface.......................................................................................................................................601
Tracking a Layer 3 Interface...................................................................................................................................... 602
Configuring track reachability refresh interval........................................................................................................ 603
Displaying Tracked Objects..............................................................................................................................................604
36 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................... 606
Protocol Overview............................................................................................................................................................ 606
Autonomous System (AS) Areas.............................................................................................................................. 606
Area Types....................................................................................................................................................................607
Networks and Neighbors............................................................................................................................................607
Router Types............................................................................................................................................................... 608
Designated and Backup Designated Routers.......................................................................................................... 609
Link-State Advertisements (LSAs)...........................................................................................................................609
Virtual Links...................................................................................................................................................................610
Router Priority and Cost............................................................................................................................................. 610
OSPF Implementation........................................................................................................................................................ 611
Fast Convergence (OSPFv2, IPv4 Only)...................................................................................................................611
Multi-Process OSPFv2 (IPv4 only)........................................................................................................................... 612
RFC-2328 Compliant OSPF Flooding........................................................................................................................612
Contents
19
OSPF ACK Packing......................................................................................................................................................613
Setting OSPF Adjacency with Cisco Routers...........................................................................................................613
Configuration Information.................................................................................................................................................613
Configuration Task List for OSPFv2 (OSPF for IPv4)............................................................................................614
Sample Configurations for OSPFv2................................................................................................................................623
OSPFv3 NSSA...................................................................................................................................................................625
Configuration Task List for OSPFv3 (OSPF for IPv6).................................................................................................625
Enabling IPv6 Unicast Routing.................................................................................................................................. 626
Assigning IPv6 Addresses on an Interface...............................................................................................................626
Assigning Area ID on an Interface............................................................................................................................. 626
Assigning OSPFv3 Process ID and Router ID Globally........................................................................................... 627
Assigning OSPFv3 Process ID and Router ID to a VRF..........................................................................................627
Configuring the Cost of OSPFv3 Routes.................................................................................................................627
Configuring Stub Areas...............................................................................................................................................628
Configuring Passive-Interface................................................................................................................................... 628
Redistributing Routes................................................................................................................................................. 628
Configuring a Default Route...................................................................................................................................... 629
OSPFv3 Authentication Using IPsec........................................................................................................................ 629
Troubleshooting OSPFv3........................................................................................................................................... 634
MIB Support for OSPFv3.................................................................................................................................................635
Viewing the OSPFv3 MIB.......................................................................................................................................... 636
37 Per-VLAN Spanning Tree Plus (PVST+).................................................................................... 637
Protocol Overview............................................................................................................................................................ 637
Implementation Information.............................................................................................................................................638
Configure Per-VLAN Spanning Tree Plus......................................................................................................................638
Enabling PVST+.................................................................................................................................................................638
Disabling PVST+................................................................................................................................................................638
Influencing PVST+ Root Selection..................................................................................................................................639
Modifying Global PVST+ Parameters.............................................................................................................................640
Modifying Interface PVST+ Parameters........................................................................................................................640
Configuring an EdgePort...................................................................................................................................................641
PVST+ in Multi-Vendor Networks.................................................................................................................................. 642
Enabling PVST+ Extend System ID................................................................................................................................ 642
PVST+ Sample Configurations........................................................................................................................................643
38 PIM Sparse-Mode (PIM-SM)................................................................................................... 645
Implementation Information.............................................................................................................................................645
Protocol Overview............................................................................................................................................................ 645
Requesting Multicast Traffic..................................................................................................................................... 645
Refuse Multicast Traffic.............................................................................................................................................646
Send Multicast Traffic................................................................................................................................................ 646
Configuring PIM-SSM...................................................................................................................................................... 646
Related Configuration Tasks......................................................................................................................................646
Enable PIM-SM..................................................................................................................................................................647
Configuring S,G Expiry Timers.........................................................................................................................................647
Configuring a Static Rendezvous Point......................................................................................................................... 648
Overriding Bootstrap Router Updates......................................................................................................................648
Configuring a Designated Router....................................................................................................................................648
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