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Dell OS9 Quick start guide

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Dell EMC Configuration Guide for the
S3048–ON System
9.14.2.0
April 2019
Rev. A00
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid
the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
Chapter 1: About this Guide.........................................................................................................30
Audience.............................................................................................................................................................................. 30
Conventions........................................................................................................................................................................30
Related Documents...........................................................................................................................................................30
Chapter 2: Configuration Fundamentals.......................................................................................31
Accessing the Command Line......................................................................................................................................... 31
CLI Modes............................................................................................................................................................................31
Navigating CLI Modes................................................................................................................................................ 33
The do Command.............................................................................................................................................................. 35
Undoing Commands..........................................................................................................................................................36
Obtaining Help....................................................................................................................................................................36
Entering and Editing Commands....................................................................................................................................37
Command History..............................................................................................................................................................38
Filtering show Command Outputs.................................................................................................................................38
Multiple Users in Configuration Mode..........................................................................................................................39
Chapter 3: Getting Started..........................................................................................................40
Console Access..................................................................................................................................................................40
Serial Console...............................................................................................................................................................40
Accessing the CLI Interface and Running Scripts Using SSH.................................................................................41
Default Configuration....................................................................................................................................................... 42
Configuring a Host Name................................................................................................................................................ 42
Accessing the System Remotely................................................................................................................................... 42
Configure the Management Port IP Address....................................................................................................... 43
Configure a Management Route..............................................................................................................................43
Configuring a Username and Password................................................................................................................. 43
Configuring the Enable Password................................................................................................................................. 44
Configuration File Management.....................................................................................................................................45
Copy Files to and from the System........................................................................................................................ 45
Mounting an NFS File System..................................................................................................................................45
Save the Running-Configuration..............................................................................................................................47
Configure the Overload Bit for a Startup Scenario.............................................................................................47
Viewing Files................................................................................................................................................................. 47
Compressing Configuration Files............................................................................................................................. 48
Managing the File System...............................................................................................................................................50
Enabling Software Features on Devices Using a Command Option......................................................................51
View Command History.................................................................................................................................................... 51
Upgrading Dell EMC Networking OS............................................................................................................................52
Verify Software Images Before Installation................................................................................................................ 52
Using HTTP for File Transfers....................................................................................................................................... 53
Chapter 4: Management.............................................................................................................. 54
Configuring Privilege Levels........................................................................................................................................... 54
Contents
Contents 3
Removing a Command from EXEC Mode............................................................................................................. 55
Moving a Command from EXEC Privilege Mode to EXEC Mode.................................................................... 55
Allowing Access to CONFIGURATION Mode Commands................................................................................. 55
Allowing Access to Different Modes...................................................................................................................... 55
Applying a Privilege Level to a Username..............................................................................................................57
Applying a Privilege Level to a Terminal Line........................................................................................................57
Configuring Logging..........................................................................................................................................................57
Audit and Security Logs............................................................................................................................................. 57
Configuring Logging Format .............................................................................................................................59
Display the Logging Buffer and the Logging Configuration..............................................................................59
Setting Up a Secure Connection to a Syslog Server................................................................................ 60
Sending System Messages to a Syslog Server.....................................................................................................61
Track Login Activity...........................................................................................................................................................61
Restrictions for Tracking Login Activity................................................................................................................. 61
Configuring Login Activity Tracking........................................................................................................................ 61
Display Login Statistics.............................................................................................................................................. 62
Limit Concurrent Login Sessions...................................................................................................................................63
Restrictions for Limiting the Number of Concurrent Sessions........................................................................ 63
Configuring Concurrent Session Limit....................................................................................................................64
Enabling the System to Clear Existing Sessions.................................................................................................. 64
Enabling Secured CLI Mode........................................................................................................................................... 65
Log Messages in the Internal Buffer............................................................................................................................ 65
Disabling System Logging............................................................................................................................................... 65
Sending System Messages to a Syslog Server..........................................................................................................65
Configuring a UNIX System as a Syslog Server...................................................................................................66
Changing System Logging Settings..............................................................................................................................66
Display the Logging Buffer and the Logging Configuration....................................................................................67
Configuring a UNIX Logging Facility Level..................................................................................................................67
Synchronizing Log Messages......................................................................................................................................... 68
Enabling Timestamp on Syslog Messages...................................................................................................................69
File Transfer Services.......................................................................................................................................................69
Enabling the FTP Server............................................................................................................................................69
Configuring FTP Server Parameters.......................................................................................................................70
Configuring FTP Client Parameters........................................................................................................................ 70
Terminal Lines.................................................................................................................................................................... 70
Denying and Permitting Access to a Terminal Line..............................................................................................71
Configuring Login Authentication for Terminal Lines..........................................................................................72
Setting Timeout for EXEC Privilege Mode..................................................................................................................72
Using Telnet to get to Another Network Device....................................................................................................... 73
Lock CONFIGURATION Mode........................................................................................................................................73
LPC Bus Quality Degradation......................................................................................................................................... 74
Reloading the system....................................................................................................................................................... 75
Viewing the Reason for Last System Reboot.............................................................................................................75
Chapter 5: 802.1X........................................................................................................................77
Port-Authentication Process..........................................................................................................................................78
EAP over RADIUS........................................................................................................................................................79
Configuring 802.1X............................................................................................................................................................80
Important Points to Remember..................................................................................................................................... 80
Configuring dot1x Profile ................................................................................................................................................80
4
Contents
Configuring MAC addresses for a do1x Profile.......................................................................................................... 80
Configuring the Static MAB and MAB Profile ........................................................................................................... 81
Configuring Critical VLAN .............................................................................................................................................. 82
Enabling 802.1X..................................................................................................................................................................83
Configuring Request Identity Re-Transmissions........................................................................................................84
Configuring a Quiet Period after a Failed Authentication..................................................................................85
Forcibly Authorizing or Unauthorizing a Port............................................................................................................. 85
Re-Authenticating a Port................................................................................................................................................ 86
Configuring Timeouts....................................................................................................................................................... 87
Configuring Dynamic VLAN Assignment with Port Authentication...................................................................... 88
Guest and Authentication-Fail VLANs......................................................................................................................... 89
Configuring a Guest VLAN........................................................................................................................................ 89
Configuring an Authentication-Fail VLAN............................................................................................................. 89
Chapter 6: Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 91
Optimizing CAM Utilization During the Attachment of ACLs to VLANs.............................................................. 91
Guidelines for Configuring ACL VLAN Groups........................................................................................................... 92
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.......................................... 92
Configuring ACL VLAN Groups................................................................................................................................ 92
Configuring FP Blocks for VLAN Parameters.......................................................................................................93
Viewing CAM Usage......................................................................................................................................................... 94
Allocating FP Blocks for VLAN Processes.................................................................................................................. 95
Chapter 7: Access Control Lists (ACLs).......................................................................................96
IP Access Control Lists (ACLs)......................................................................................................................................97
CAM Usage................................................................................................................................................................... 97
Implementing ACLs on Dell EMC Networking OS............................................................................................... 98
Important Points to Remember..................................................................................................................................... 99
Configuration Task List for Route Maps..............................................................................................................100
Configuring Match Routes...................................................................................................................................... 102
Configuring Set Conditions..................................................................................................................................... 103
Configure a Route Map for Route Redistribution.............................................................................................. 103
Configure a Route Map for Route Tagging......................................................................................................... 104
Continue Clause......................................................................................................................................................... 104
IP Fragment Handling..................................................................................................................................................... 105
IP Fragments ACL Examples...................................................................................................................................105
Layer 4 ACL Rules Examples...................................................................................................................................105
Configure a Standard IP ACL....................................................................................................................................... 106
Configuring a Standard IP ACL Filter....................................................................................................................107
Configure an Extended IP ACL.....................................................................................................................................108
Configuring Filters with a Sequence Number..................................................................................................... 108
Configuring Filters Without a Sequence Number.............................................................................................. 109
Configure Layer 2 and Layer 3 ACLs.......................................................................................................................... 109
Assign an IP ACL to an Interface..................................................................................................................................110
Applying an IP ACL...........................................................................................................................................................110
Counting ACL Hits.......................................................................................................................................................111
Configure Ingress ACLs................................................................................................................................................... 111
Configure Egress ACLs................................................................................................................................................... 112
Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................. 112
Contents
5
IP Prefix Lists.................................................................................................................................................................... 113
Configuration Task List for Prefix Lists.................................................................................................................113
ACL Remarks..................................................................................................................................................................... 116
Configuring a Remark................................................................................................................................................ 117
Deleting a Remark.......................................................................................................................................................117
ACL Resequencing........................................................................................................................................................... 118
Resequencing an ACL or Prefix List.......................................................................................................................118
Route Maps........................................................................................................................................................................119
Logging of ACL Processes............................................................................................................................................ 120
Guidelines for Configuring ACL Logging.............................................................................................................. 120
Configuring ACL Logging..........................................................................................................................................121
Flow-Based Monitoring................................................................................................................................................... 121
Enabling Flow-Based Monitoring............................................................................................................................123
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 125
How BFD Works...............................................................................................................................................................125
BFD Packet Format...................................................................................................................................................126
BFD Sessions...............................................................................................................................................................127
BFD Three-Way Handshake.................................................................................................................................... 128
Session State Changes.............................................................................................................................................129
Important Points to Remember....................................................................................................................................129
Configure BFD.................................................................................................................................................................. 129
Configure BFD for Physical Ports..........................................................................................................................130
Configure BFD for Static Routes............................................................................................................................131
Configure BFD for IPv6 Static Routes................................................................................................................. 135
Configure BFD for OSPF..........................................................................................................................................137
Configure BFD for OSPFv3.....................................................................................................................................139
Configure BFD for IS-IS........................................................................................................................................... 142
Configure BFD for BGP............................................................................................................................................ 144
Configure BFD for VRRP.......................................................................................................................................... 151
Configuring Protocol Liveness................................................................................................................................153
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 154
BGP IP version 4 (BGPv4) Overview......................................................................................................................... 154
BGP Autonomous Systems......................................................................................................................................154
AS4 Number Representation.................................................................................................................................. 156
Four-Byte AS Numbers............................................................................................................................................ 158
BGP router ID............................................................................................................................................................. 158
Sessions and Peers....................................................................................................................................................158
Establish a Session.................................................................................................................................................... 158
BGP Attributes for selecting Best Path............................................................................................................... 159
Multiprotocol BGP..................................................................................................................................................... 164
BGP global and address family configuration..................................................................................................... 165
Implement BGP with Dell EMC Networking OS................................................................................................. 166
Configuration Information........................................................................................................................................169
Basic BGP configuration tasks..................................................................................................................................... 170
Prerequisite for configuring a BGP network....................................................................................................... 170
Restrictions................................................................................................................................................................. 170
Enabling BGP.............................................................................................................................................................. 170
6
Contents
Enabling four-byte autonomous system numbers..............................................................................................172
Changing a BGP router ID........................................................................................................................................173
Configuring AS4 Number Representations..........................................................................................................173
Configuring a BGP peer............................................................................................................................................174
Example-Configuring BGP routing between peers............................................................................................ 175
BGP peer group..........................................................................................................................................................176
Advanced BGP configuration tasks.............................................................................................................................183
Route-refresh and Soft-reconfiguration.............................................................................................................. 183
Aggregating Routes...................................................................................................................................................185
Filtering BGP............................................................................................................................................................... 187
Configuring BGP Fast Fall-Over.............................................................................................................................192
Configuring Passive Peering................................................................................................................................... 194
Enabling Graceful Restart........................................................................................................................................194
Redistributing Routes............................................................................................................................................... 195
Enabling Additional Paths........................................................................................................................................ 196
Configuring IP Community Lists............................................................................................................................. 197
Configuring an IP Extended Community List...................................................................................................... 198
Configure BGP attributes........................................................................................................................................ 199
Enabling Multipath.................................................................................................................................................... 202
Route Reflectors....................................................................................................................................................... 203
Enabling Route Flap Dampening............................................................................................................................204
Changing BGP keepalive and hold timers........................................................................................................... 206
Setting the extended timer.....................................................................................................................................207
Enabling or disabling BGP neighbors.................................................................................................................... 207
Route Map Continue................................................................................................................................................ 208
Configuring BGP Confederations..........................................................................................................................209
Configuring a BGP VRF address family............................................................................................................... 209
Maintaining Existing AS Numbers During an AS Migration.............................................................................. 211
Allowing an AS Number to Appear in its Own AS Path..................................................................................... 211
Enabling MBGP Configurations.............................................................................................................................. 212
MBGP support for IPv6............................................................................................................................................213
Configuring IPv6 MBGP between peers.............................................................................................................. 213
Example-Configuring IPv4 and IPv6 neighbors.................................................................................................. 213
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor................................... 215
BGP Regular Expression Optimization..................................................................................................................217
Debugging BGP.......................................................................................................................................................... 217
Chapter 10: Content Addressable Memory (CAM)......................................................................220
CAM Allocation................................................................................................................................................................ 220
Test CAM Usage............................................................................................................................................................. 222
View CAM-ACL Settings...............................................................................................................................................222
View CAM Usage............................................................................................................................................................ 224
Configuring CAM Threshold and Silence Period..................................................................................................... 224
CAM Optimization.......................................................................................................................................................... 225
Troubleshoot CAM Profiling.........................................................................................................................................225
QoS CAM Region Limitation...................................................................................................................................225
Chapter 11: Control Plane Policing (CoPP).................................................................................227
Configure Control Plane Policing................................................................................................................................ 228
Contents
7
Configuring CoPP for Protocols............................................................................................................................229
Configuring CoPP for CPU Queues......................................................................................................................230
CoPP for OSPFv3 Packets......................................................................................................................................231
Configuring CoPP for OSPFv3.............................................................................................................................. 234
Displaying CoPP Configuration .............................................................................................................................235
Chapter 12: Dynamic Host Configuration Protocol (DHCP)........................................................ 237
DHCP Packet Format and Options............................................................................................................................. 237
Assign an IP Address using DHCP.............................................................................................................................. 239
Implementation Information......................................................................................................................................... 239
Configure the System to be a DHCP Server........................................................................................................... 240
Configuring the Server for Automatic Address Allocation..............................................................................240
Specifying a Default Gateway.................................................................................................................................241
Configure a Method of Hostname Resolution....................................................................................................242
Using DNS for Address Resolution....................................................................................................................... 242
Using NetBIOS WINS for Address Resolution....................................................................................................242
Creating Manual Binding Entries........................................................................................................................... 242
Debugging the DHCP Server..................................................................................................................................243
Using DHCP Clear Commands............................................................................................................................... 243
Configure the System to be a Relay Agent.............................................................................................................. 243
Configure the System to be a DHCP Client............................................................................................................. 245
Configuring the DHCP Client System.................................................................................................................. 245
DHCP Client on a Management Interface...........................................................................................................246
DHCP Client Operation with Other Features..................................................................................................... 247
DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 248
Configuring Route Leaking between VRFs on DHCP Relay Agent............................................................... 248
Non-default VRF configuration for DHCPv6 helper address............................................................................... 249
Configuring DHCP relay source interface.................................................................................................................249
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................249
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................250
Configure the System for User Port Stacking (Option 230)................................................................................251
Configure Secure DHCP................................................................................................................................................ 251
Option 82..................................................................................................................................................................... 251
DHCPv6 relay agent options..................................................................................................................................252
DHCP Snooping.........................................................................................................................................................252
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 256
Dynamic ARP Inspection......................................................................................................................................... 257
Configuring Dynamic ARP Inspection...................................................................................................................257
Source Address Validation............................................................................................................................................258
Enabling IP Source Address Validation................................................................................................................ 259
DHCP MAC Source Address Validation...............................................................................................................259
Enabling IP+MAC Source Address Validation.................................................................................................... 259
Viewing the Number of SAV Dropped Packets................................................................................................. 260
Clearing the Number of SAV Dropped Packets.................................................................................................260
Chapter 13: Equal Cost Multi-Path (ECMP)................................................................................261
ECMP for Flow-Based Affinity.....................................................................................................................................261
Configuring the Hash Algorithm.............................................................................................................................261
Enabling Deterministic ECMP Next Hop.............................................................................................................. 261
8
Contents
Configuring the Hash Algorithm Seed..................................................................................................................262
Link Bundle Monitoring..................................................................................................................................................262
Managing ECMP Group Paths...............................................................................................................................263
Creating an ECMP Group Bundle..........................................................................................................................263
Modifying the ECMP Group Threshold................................................................................................................263
Chapter 14: FIPS Cryptography................................................................................................. 265
Configuration Tasks....................................................................................................................................................... 265
Preparing the System.................................................................................................................................................... 265
Enabling FIPS Mode....................................................................................................................................................... 265
Generating Host-Keys................................................................................................................................................... 266
Monitoring FIPS Mode Status..................................................................................................................................... 266
Disabling FIPS Mode...................................................................................................................................................... 266
Chapter 15: Force10 Resilient Ring Protocol (FRRP)................................................................. 268
Protocol Overview..........................................................................................................................................................268
Ring Status................................................................................................................................................................. 269
Multiple FRRP Rings.................................................................................................................................................269
Important FRRP Points............................................................................................................................................270
Important FRRP Concepts.......................................................................................................................................271
Implementing FRRP.........................................................................................................................................................271
FRRP Configuration........................................................................................................................................................272
Creating the FRRP Group....................................................................................................................................... 272
Configuring the Control VLAN............................................................................................................................... 272
Configuring and Adding the Member VLANs......................................................................................................273
Setting the FRRP Timers.........................................................................................................................................274
Clearing the FRRP Counters.................................................................................................................................. 274
Viewing the FRRP Configuration...........................................................................................................................274
Viewing the FRRP Information...............................................................................................................................274
Troubleshooting FRRP...................................................................................................................................................275
Sample Configuration and Topology...........................................................................................................................275
FRRP Support on VLT................................................................................................................................................... 276
Chapter 16: GARP VLAN Registration Protocol (GVRP)............................................................. 279
Configure GVRP..............................................................................................................................................................280
Enabling GVRP Globally.................................................................................................................................................280
Enabling GVRP on a Layer 2 Interface....................................................................................................................... 281
Configure GVRP Registration....................................................................................................................................... 281
Configure a GARP Timer...............................................................................................................................................282
RPM Redundancy........................................................................................................................................................... 282
Chapter 17: High Availability (HA)..............................................................................................283
Component Redundancy............................................................................................................................................... 283
Automatic and Manual Stack Unit Failover.........................................................................................................283
Synchronization between Management and Standby Units...........................................................................284
Forcing a Stack Unit Failover................................................................................................................................. 284
Specifying an Auto-Failover Limit......................................................................................................................... 284
Disabling Auto-Reboot.............................................................................................................................................285
Pre-Configuring a Stack Unit Slot.............................................................................................................................. 285
Contents
9
Removing a Provisioned Logical Stack Unit............................................................................................................. 285
Hitless Behavior...............................................................................................................................................................285
Graceful Restart..............................................................................................................................................................285
Software Resiliency........................................................................................................................................................286
Software Component Health Monitoring............................................................................................................ 286
System Health Monitoring...................................................................................................................................... 286
Failure and Event Logging...................................................................................................................................... 286
Hot-Lock Behavior..........................................................................................................................................................287
Chapter 18: Internet Group Management Protocol (IGMP)........................................................ 288
IGMP Protocol Overview.............................................................................................................................................. 288
IGMP Version 2..........................................................................................................................................................288
IGMP Version 3..........................................................................................................................................................290
Configure IGMP...............................................................................................................................................................292
Viewing IGMP Enabled Interfaces.............................................................................................................................. 293
Selecting an IGMP Version...........................................................................................................................................293
Viewing IGMP Groups....................................................................................................................................................294
Adjusting Timers..............................................................................................................................................................294
Adjusting Query and Response Timers................................................................................................................ 294
Preventing a Host from Joining a Group.................................................................................................................. 295
Enabling IGMP Immediate-Leave................................................................................................................................ 297
IGMP Snooping................................................................................................................................................................298
Configuring IGMP Snooping................................................................................................................................... 298
Removing a Group-Port Association.................................................................................................................... 298
Disabling Multicast Flooding...................................................................................................................................299
Specifying a Port as Connected to a Multicast Router................................................................................... 299
Configuring the Switch as Querier....................................................................................................................... 299
Fast Convergence after MSTP Topology Changes................................................................................................300
Egress Interface Selection (EIS) for HTTP and IGMP Applications...................................................................300
Designating a Multicast Router Interface................................................................................................................. 307
Chapter 19: Interfaces...............................................................................................................308
Interface Types............................................................................................................................................................... 309
View Basic Interface Information................................................................................................................................309
Resetting an Interface to its Factory Default State................................................................................................ 311
Enabling a Physical Interface.........................................................................................................................................311
Enabling Energy Efficient Ethernet............................................................................................................................. 312
View EEE Information..................................................................................................................................................... 312
Clear EEE Counters.........................................................................................................................................................316
Physical Interfaces...........................................................................................................................................................317
Configuration Task List for Physical Interfaces..................................................................................................317
Overview of Layer Modes........................................................................................................................................317
Configuring Layer 2 (Data Link) Mode................................................................................................................. 317
Configuring Layer 2 (Interface) Mode..................................................................................................................318
Configuring Layer 3 (Network) Mode.................................................................................................................. 318
Configuring Layer 3 (Interface) Mode..................................................................................................................319
Automatic recovery of an Err-disabled interface.....................................................................................................319
Configuring an automatic recovery for an Err-disabled interface.................................................................320
Egress Interface Selection (EIS).................................................................................................................................320
10
Contents
Configuring EIS...........................................................................................................................................................321
Management Interfaces................................................................................................................................................. 321
Configuring Management Interfaces.....................................................................................................................321
Configuring a Management Interface on an Ethernet Port............................................................................ 322
VLAN Interfaces.............................................................................................................................................................. 323
Loopback Interfaces.......................................................................................................................................................324
Null Interfaces..................................................................................................................................................................324
Port Channel Interfaces................................................................................................................................................ 324
Port Channel Definition and Standards............................................................................................................... 324
Port Channel Benefits..............................................................................................................................................325
Port Channel Implementation.................................................................................................................................325
Interfaces in Port Channels.................................................................................................................................... 325
Configuration Tasks for Port Channel Interfaces............................................................................................. 326
Creating a Port Channel.......................................................................................................................................... 326
Adding a Physical Interface to a Port Channel.................................................................................................. 326
Reassigning an Interface to a New Port Channel............................................................................................. 328
Configuring the Minimum Oper Up Links in a Port Channel...........................................................................328
Adding or Removing a Port Channel from a VLAN........................................................................................... 329
Assigning an IP Address to a Port Channel........................................................................................................ 330
Deleting or Disabling a Port Channel....................................................................................................................330
Load Balancing Through Port Channels.............................................................................................................. 330
Changing the Hash Algorithm................................................................................................................................ 330
Bulk Configuration........................................................................................................................................................... 331
Interface Range..........................................................................................................................................................331
Bulk Configuration Examples..................................................................................................................................332
Defining Interface Range Macros............................................................................................................................... 333
Define the Interface Range.....................................................................................................................................334
Choosing an Interface-Range Macro................................................................................................................... 334
Monitoring and Maintaining Interfaces...................................................................................................................... 334
Maintenance Using TDR..........................................................................................................................................335
Configuring wavelength for 10–Gigabit SFP+ optics.............................................................................................335
Link Dampening............................................................................................................................................................... 336
Enabling Link Dampening.........................................................................................................................................338
Link Bundle Monitoring..................................................................................................................................................339
Using Ethernet Pause Frames for Flow Control......................................................................................................339
Enabling Pause Frames............................................................................................................................................340
Configure the MTU Size on an Interface.................................................................................................................. 340
Port-Pipes..........................................................................................................................................................................341
Auto-Negotiation on Ethernet Interfaces..................................................................................................................341
Setting the Speed of Ethernet Interfaces.......................................................................................................... 342
Set Auto-Negotiation Options............................................................................................................................... 343
View Advanced Interface Information....................................................................................................................... 343
Configuring the Interface Sampling Size.............................................................................................................344
Configuring the Traffic Sampling Size Globally....................................................................................................... 345
Dynamic Counters...........................................................................................................................................................346
Clearing Interface Counters....................................................................................................................................347
Discard Counters.............................................................................................................................................................347
Display discard counters..........................................................................................................................................348
Chapter 20: Internet Protocol Security (IPSec).........................................................................350
Contents
11
Configuring IPSec ..........................................................................................................................................................350
Chapter 21: IPv4 Routing...........................................................................................................352
IP Addresses.....................................................................................................................................................................353
Configuration Tasks for IP Addresses........................................................................................................................353
Assigning IP Addresses to an Interface.....................................................................................................................353
Configuring Static Routes............................................................................................................................................ 354
Configure Static Routes for the Management Interface...................................................................................... 355
IPv4 Path MTU Discovery Overview......................................................................................................................... 355
Using the Configured Source IP Address in ICMP Messages..............................................................................356
Configuring the Duration to Establish a TCP Connection.................................................................................... 356
Enabling Directed Broadcast........................................................................................................................................ 357
Resolution of Host Names............................................................................................................................................ 357
Enabling Dynamic Resolution of Host Names.......................................................................................................... 357
Specifying the Local System Domain and a List of Domains............................................................................... 358
Configuring DNS with Traceroute.............................................................................................................................. 358
ARP.................................................................................................................................................................................... 359
Configuration Tasks for ARP....................................................................................................................................... 359
Configuring Static ARP Entries................................................................................................................................... 359
Enabling Proxy ARP........................................................................................................................................................360
Clearing ARP Cache....................................................................................................................................................... 360
ARP Learning via Gratuitous ARP...............................................................................................................................360
Enabling ARP Learning via Gratuitous ARP..............................................................................................................360
ARP Learning via ARP Request....................................................................................................................................361
Configuring ARP Retries................................................................................................................................................ 361
ICMP.................................................................................................................................................................................. 362
Configuration Tasks for ICMP..................................................................................................................................... 362
Enabling ICMP Unreachable Messages..................................................................................................................... 362
ICMP Redirects............................................................................................................................................................... 362
UDP Helper.......................................................................................................................................................................363
Enabling UDP Helper......................................................................................................................................................364
Configurations Using UDP Helper...............................................................................................................................364
UDP Helper with Broadcast-All Addresses...............................................................................................................364
UDP Helper with Subnet Broadcast Addresses...................................................................................................... 365
UDP Helper with Configured Broadcast Addresses............................................................................................... 365
UDP Helper with No Configured Broadcast Addresses.........................................................................................366
Troubleshooting UDP Helper....................................................................................................................................... 366
Chapter 22: IPv6 Routing.......................................................................................................... 367
Protocol Overview.......................................................................................................................................................... 367
Extended Address Space.........................................................................................................................................367
Stateless Autoconfiguration................................................................................................................................... 367
IPv6 Headers..............................................................................................................................................................368
IPv6 Header Fields....................................................................................................................................................368
Extension Header Fields.......................................................................................................................................... 370
Addressing................................................................................................................................................................... 371
Implementing IPv6 with Dell EMC Networking OS.................................................................................................372
ICMPv6..............................................................................................................................................................................373
Path MTU discovery.......................................................................................................................................................374
12
Contents
IPv6 Neighbor Discovery...............................................................................................................................................374
IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 375
Configuration Task List for IPv6 RDNSS.................................................................................................................. 375
Configuring the IPv6 Recursive DNS Server......................................................................................................375
Debugging IPv6 RDNSS Information Sent to the Host .................................................................................. 376
Displaying IPv6 RDNSS Information..................................................................................................................... 376
Secure Shell (SSH) Over an IPv6 Transport............................................................................................................ 377
Configuration Tasks for IPv6........................................................................................................................................377
Adjusting Your CAM-Profile....................................................................................................................................377
Assigning an IPv6 Address to an Interface......................................................................................................... 378
Assigning a Static IPv6 Route................................................................................................................................378
Configuring Telnet with IPv6..................................................................................................................................379
SNMP over IPv6........................................................................................................................................................379
Displaying IPv6 Information....................................................................................................................................380
Displaying an IPv6 Interface Information............................................................................................................ 380
Showing IPv6 Routes................................................................................................................................................381
Showing the Running-Configuration for an Interface...................................................................................... 382
Clearing IPv6 Routes................................................................................................................................................382
Disabling ND Entry Timeout....................................................................................................................................382
Configuring IPv6 RA Guard.......................................................................................................................................... 383
Configuring IPv6 RA Guard on an Interface....................................................................................................... 384
Monitoring IPv6 RA Guard......................................................................................................................................385
Chapter 23: Intermediate System to Intermediate System.........................................................386
IS-IS Protocol Overview................................................................................................................................................386
IS-IS Addressing..............................................................................................................................................................386
Multi-Topology IS-IS.......................................................................................................................................................387
Transition Mode.........................................................................................................................................................387
Interface Support...................................................................................................................................................... 387
Adjacencies................................................................................................................................................................. 387
Graceful Restart..............................................................................................................................................................388
Timers.......................................................................................................................................................................... 388
Implementation Information......................................................................................................................................... 388
Configuration Information.............................................................................................................................................389
Configuration Tasks for IS-IS.................................................................................................................................389
Configuring the Distance of a Route....................................................................................................................396
Changing the IS-Type.............................................................................................................................................. 396
Redistributing IPv4 Routes..................................................................................................................................... 398
Redistributing IPv6 Routes.....................................................................................................................................399
Configuring Authentication Passwords............................................................................................................... 400
Setting the Overload Bit......................................................................................................................................... 400
Debugging IS-IS..........................................................................................................................................................401
IS-IS Metric Styles.......................................................................................................................................................... 401
Configure Metric Values................................................................................................................................................402
Maximum Values in the Routing Table.................................................................................................................402
Change the IS-IS Metric Style in One Level Only............................................................................................. 402
Leaks from One Level to Another......................................................................................................................... 403
Sample Configurations...................................................................................................................................................404
Contents
13
Chapter 24: Link Aggregation Control Protocol (LACP)............................................................. 407
Introduction to Dynamic LAGs and LACP................................................................................................................. 407
Important Points to Remember............................................................................................................................. 407
LACP Modes.............................................................................................................................................................. 408
Configuring LACP Commands............................................................................................................................... 408
LACP Configuration Tasks............................................................................................................................................408
Creating a LAG.......................................................................................................................................................... 409
Configuring the LAG Interfaces as Dynamic...................................................................................................... 409
Setting the LACP Long Timeout........................................................................................................................... 409
Monitoring and Debugging LACP...........................................................................................................................410
Shared LAG State Tracking.......................................................................................................................................... 410
Configuring Shared LAG State Tracking...............................................................................................................411
Important Points about Shared LAG State Tracking........................................................................................ 412
LACP Basic Configuration Example.............................................................................................................................413
Configure a LAG on ALPHA.....................................................................................................................................413
Chapter 25: Layer 2................................................................................................................... 421
Manage the MAC Address Table................................................................................................................................. 421
Clearing the MAC Address Table........................................................................................................................... 421
Setting the Aging Time for Dynamic Entries.......................................................................................................421
Configuring a Static MAC Address....................................................................................................................... 422
Displaying the MAC Address Table.......................................................................................................................422
MAC Learning Limit........................................................................................................................................................ 422
Setting the MAC Learning Limit............................................................................................................................ 423
mac learning-limit Dynamic..................................................................................................................................... 423
mac learning-limit mac-address-sticky................................................................................................................ 423
mac learning-limit station-move............................................................................................................................ 423
mac learning-limit no-station-move......................................................................................................................424
Learning Limit Violation Actions............................................................................................................................ 424
Setting Station Move Violation Actions...............................................................................................................424
Recovering from Learning Limit and Station Move Violations.......................................................................425
Disabling MAC Address Learning on the System.............................................................................................. 425
Enabling port security.............................................................................................................................................. 425
NIC Teaming.....................................................................................................................................................................426
Configure Redundant Pairs...........................................................................................................................................427
Far-End Failure Detection.............................................................................................................................................430
FEFD State Changes................................................................................................................................................430
Configuring FEFD.......................................................................................................................................................431
Enabling FEFD on an Interface.............................................................................................................................. 432
Debugging FEFD........................................................................................................................................................433
Chapter 26: Link Layer Discovery Protocol (LLDP).................................................................... 434
802.1AB (LLDP) Overview............................................................................................................................................434
Protocol Data Units.................................................................................................................................................. 434
Optional TLVs.................................................................................................................................................................. 436
Management TLVs....................................................................................................................................................436
TIA-1057 (LLDP-MED) Overview................................................................................................................................437
TIA Organizationally Specific TLVs....................................................................................................................... 438
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Configure LLDP................................................................................................................................................................441
CONFIGURATION versus INTERFACE Configurations......................................................................................... 442
Enabling LLDP..................................................................................................................................................................442
Disabling and Undoing LLDP...................................................................................................................................442
Enabling LLDP on Management Ports....................................................................................................................... 443
Disabling and Undoing LLDP on Management Ports........................................................................................443
Advertising TLVs............................................................................................................................................................. 443
Storing and Viewing Unrecognized LLDP TLVs...................................................................................................... 444
Viewing the LLDP Configuration.................................................................................................................................445
Viewing Information Advertised by Adjacent LLDP Neighbors............................................................................446
Examples of Viewing Information Advertised by Neighbors...........................................................................446
Configuring LLDPDU Intervals..................................................................................................................................... 447
Configuring LLDP Notification Interval......................................................................................................................448
Configuring LLDP Notification Interval......................................................................................................................448
Configuring Transmit and Receive Mode..................................................................................................................449
Configuring the Time to Live Value............................................................................................................................ 449
Debugging LLDP............................................................................................................................................................. 450
Relevant Management Objects....................................................................................................................................451
Chapter 27: Microsoft Network Load Balancing......................................................................... 456
Configuring a Switch for NLB .....................................................................................................................................457
Enabling a Switch for Multicast NLB................................................................................................................... 458
Chapter 28: Multicast Source Discovery Protocol (MSDP)........................................................ 459
Anycast RP.......................................................................................................................................................................460
Implementation Information.......................................................................................................................................... 461
Configure Multicast Source Discovery Protocol......................................................................................................461
Related Configuration Tasks................................................................................................................................... 461
Enable MSDP................................................................................................................................................................... 465
Manage the Source-Active Cache..............................................................................................................................466
Viewing the Source-Active Cache........................................................................................................................ 466
Limiting the Source-Active Cache........................................................................................................................466
Clearing the Source-Active Cache....................................................................................................................... 466
Enabling the Rejected Source-Active Cache..................................................................................................... 467
Accept Source-Active Messages that Fail the RFP Check.................................................................................. 467
Specifying Source-Active Messages..........................................................................................................................470
Limiting the Source-Active Messages from a Peer.................................................................................................471
Preventing MSDP from Caching a Local Source..................................................................................................... 471
Preventing MSDP from Caching a Remote Source................................................................................................472
Preventing MSDP from Advertising a Local Source...............................................................................................472
Logging Changes in Peership States..........................................................................................................................473
Terminating a Peership.................................................................................................................................................. 473
Clearing Peer Statistics................................................................................................................................................. 473
Debugging MSDP............................................................................................................................................................ 474
MSDP with Anycast RP.................................................................................................................................................474
Configuring Anycast RP................................................................................................................................................ 475
Reducing Source-Active Message Flooding....................................................................................................... 476
Specifying the RP Address Used in SA Messages............................................................................................ 476
MSDP Sample Configurations......................................................................................................................................478
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Chapter 29: Multicast Listener Discovery Protocol.................................................................... 481
MLD timers....................................................................................................................................................................... 484
Reducing Host Response Burstiness....................................................................................................................484
Configuring MLD Version..............................................................................................................................................485
Clearing MLD groups..................................................................................................................................................... 485
Debugging MLD...............................................................................................................................................................485
Explicit Tracking.............................................................................................................................................................. 485
Reducing Leave Latency............................................................................................................................................... 485
Displaying MLD groups table........................................................................................................................................486
Displaying MLD Interfaces............................................................................................................................................ 486
MLD Snooping................................................................................................................................................................. 486
Enable MLD Snooping.............................................................................................................................................. 487
Disable MLD Snooping............................................................................................................................................. 487
Configure the switch as a querier......................................................................................................................... 487
Specify port as connected to multicast router.................................................................................................. 487
Enable Snooping Explicit Tracking........................................................................................................................ 487
Display the MLD Snooping Table...........................................................................................................................488
Chapter 30: Multiple Spanning Tree Protocol (MSTP)............................................................... 489
Spanning Tree Variations.............................................................................................................................................. 490
Implementation Information....................................................................................................................................490
Configure Multiple Spanning Tree Protocol............................................................................................................. 490
Related Configuration Tasks.................................................................................................................................. 490
Enable Multiple Spanning Tree Globally..................................................................................................................... 491
Adding and Removing Interfaces.................................................................................................................................491
Creating Multiple Spanning Tree Instances...............................................................................................................491
Influencing MSTP Root Selection............................................................................................................................... 492
Interoperate with Non-Dell Bridges............................................................................................................................493
Changing the Region Name or Revision.................................................................................................................... 493
Modifying Global Parameters.......................................................................................................................................493
Modifying the Interface Parameters.......................................................................................................................... 494
Setting STP path cost as constant............................................................................................................................ 495
Configuring an EdgePort...............................................................................................................................................496
Flush MAC Addresses after a Topology Change.....................................................................................................496
MSTP Sample Configurations......................................................................................................................................496
Debugging and Verifying MSTP Configurations......................................................................................................500
Chapter 31: Multicast Features..................................................................................................502
Enabling IP Multicast..................................................................................................................................................... 502
Implementation Information......................................................................................................................................... 502
Multicast Policies............................................................................................................................................................ 503
IPv4 Multicast Policies.............................................................................................................................................503
Understanding Multicast Traceroute (mtrace)....................................................................................................... 509
Printing Multicast Traceroute (mtrace) Paths........................................................................................................509
Supported Error Codes................................................................................................................................................... 511
mtrace Scenarios............................................................................................................................................................. 512
Chapter 32: Object Tracking...................................................................................................... 518
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Object Tracking Overview.............................................................................................................................................518
Track Layer 2 Interfaces..........................................................................................................................................519
Track Layer 3 Interfaces..........................................................................................................................................519
Track IPv4 and IPv6 Routes....................................................................................................................................519
Set Tracking Delays..................................................................................................................................................520
VRRP Object Tracking..............................................................................................................................................521
Object Tracking Configuration..................................................................................................................................... 521
Tracking a Layer 2 Interface................................................................................................................................... 521
Tracking a Layer 3 Interface.................................................................................................................................. 522
Track an IPv4/IPv6 Route...................................................................................................................................... 523
Displaying Tracked Objects.......................................................................................................................................... 526
Chapter 33: Open Shortest Path First (OSPFv2 and OSPFv3)................................................... 528
Protocol Overview..........................................................................................................................................................528
Autonomous System (AS) Areas...........................................................................................................................528
Area Types..................................................................................................................................................................529
Networks and Neighbors.........................................................................................................................................530
Router Types..............................................................................................................................................................530
Designated and Backup Designated Routers...................................................................................................... 531
Link-State Advertisements (LSAs)........................................................................................................................531
Router Priority and Cost......................................................................................................................................... 532
OSPF with Dell EMC Networking OS........................................................................................................................ 533
Graceful Restart........................................................................................................................................................533
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................ 534
Multi-Process OSPFv2 with VRF..........................................................................................................................535
OSPF ACK Packing...................................................................................................................................................535
Setting OSPF Adjacency with Cisco Routers.................................................................................................... 535
Configuration Information.............................................................................................................................................536
Configuration Task List for OSPFv2 (OSPF for IPv4).....................................................................................536
OSPFv3 NSSA................................................................................................................................................................. 548
Configuration Task List for OSPFv3 (OSPF for IPv6).......................................................................................... 549
Enabling IPv6 Unicast Routing...............................................................................................................................549
Applying cost for OSPFv3...................................................................................................................................... 549
Assigning IPv6 Addresses on an Interface..........................................................................................................550
Assigning Area ID on an Interface.........................................................................................................................550
Assigning OSPFv3 Process ID and Router ID Globally.....................................................................................550
Assigning OSPFv3 Process ID and Router ID to a VRF................................................................................... 551
Configuring Stub Areas............................................................................................................................................ 551
Configuring Passive-Interface................................................................................................................................551
Redistributing Routes.............................................................................................................................................. 552
Configuring a Default Route...................................................................................................................................552
Enabling OSPFv3 Graceful Restart...................................................................................................................... 552
OSPFv3 Authentication Using IPsec....................................................................................................................554
Troubleshooting OSPFv3........................................................................................................................................ 560
MIB Support for OSPFv3.........................................................................................................................................561
Chapter 34: Policy-based Routing (PBR)...................................................................................562
Overview...........................................................................................................................................................................562
Implementing PBR.......................................................................................................................................................... 563
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Configuration Task List for Policy-based Routing.................................................................................................. 563
Create a Redirect List..............................................................................................................................................564
Create a Rule for a Redirect-list........................................................................................................................... 564
Apply a Redirect-list to an Interface using a Redirect-group........................................................................ 566
Sample Configuration.....................................................................................................................................................567
Chapter 35: PIM Sparse-Mode (PIM-SM).................................................................................. 571
Implementation Information.......................................................................................................................................... 571
Protocol Overview...........................................................................................................................................................571
Requesting Multicast Traffic...................................................................................................................................571
Refuse Multicast Traffic..........................................................................................................................................572
Send Multicast Traffic............................................................................................................................................. 572
Configuring PIM-SM...................................................................................................................................................... 572
Related Configuration Tasks.................................................................................................................................. 573
Enable PIM-SM................................................................................................................................................................573
Configuring S,G Expiry Timers.....................................................................................................................................575
Configuring a Static Rendezvous Point.....................................................................................................................575
Overriding Bootstrap Router Updates................................................................................................................. 576
Configuring a Designated Router................................................................................................................................576
Creating Multicast Boundaries and Domains............................................................................................................578
Electing an RP using the BSR Mechanism................................................................................................................578
Chapter 36: PIM Source-Specific Mode (PIM-SSM)..................................................................580
Implementation Information......................................................................................................................................... 580
Configure PIM-SSM.......................................................................................................................................................580
Enabling PIM-SSM.......................................................................................................................................................... 581
Use PIM-SSM with IGMP Version 2 Hosts............................................................................................................... 581
Electing an RP using the BSR Mechanism............................................................................................................... 582
Enabling RP to Server Specific Multicast Groups.............................................................................................584
Chapter 37: Port Monitoring......................................................................................................585
Important Points to Remember...................................................................................................................................585
Port Monitoring............................................................................................................................................................... 586
Configuring Port Monitoring........................................................................................................................................ 588
Configuring Monitor Multicast Queue....................................................................................................................... 589
Enabling Flow-Based Monitoring................................................................................................................................ 590
Remote Port Mirroring................................................................................................................................................... 591
Remote Port Mirroring Example.............................................................................................................................591
Configuring Remote Port Mirroring......................................................................................................................592
Displaying Remote-Port Mirroring Configurations............................................................................................593
Configuration procedure for Remote Port Mirroring....................................................................................... 594
Encapsulated Remote Port Monitoring..................................................................................................................... 598
ERPM Behavior on a typical Dell EMC Networking OS ....................................................................................... 600
Port Monitoring on VLT................................................................................................................................................. 601
Chapter 38: Private VLANs (PVLAN)......................................................................................... 604
Private VLAN Concepts................................................................................................................................................ 604
Using the Private VLAN Commands.......................................................................................................................... 605
Configuration Task List................................................................................................................................................. 606
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Contents
Creating PVLAN ports............................................................................................................................................. 606
Creating a Primary VLAN........................................................................................................................................606
Creating a Community VLAN................................................................................................................................. 607
Creating an Isolated VLAN..................................................................................................................................... 608
Private VLAN Configuration Example........................................................................................................................609
Inspecting the Private VLAN Configuration..............................................................................................................610
Chapter 39: Per-VLAN Spanning Tree Plus (PVST+).................................................................. 612
Protocol Overview...........................................................................................................................................................612
Implementation Information.......................................................................................................................................... 613
Configure Per-VLAN Spanning Tree Plus..................................................................................................................614
Enabling PVST+............................................................................................................................................................... 614
Disabling PVST+...............................................................................................................................................................614
Influencing PVST+ Root Selection.............................................................................................................................. 615
Modifying Global PVST+ Parameters......................................................................................................................... 616
Modifying Interface PVST+ Parameters....................................................................................................................616
Configuring an EdgePort................................................................................................................................................617
PVST+ in Multi-Vendor Networks...............................................................................................................................618
Enabling PVST+ Extend System ID.............................................................................................................................618
PVST+ Sample Configurations.....................................................................................................................................619
Chapter 40: Quality of Service (QoS).........................................................................................621
Implementation Information......................................................................................................................................... 623
Port-Based QoS Configurations..................................................................................................................................623
Setting dot1p Priorities for Incoming Traffic...................................................................................................... 623
Honoring dot1p Priorities on Ingress Traffic.......................................................................................................624
Configuring Port-Based Rate Policing................................................................................................................. 624
Configuring Port-Based Rate Shaping.................................................................................................................625
Policy-Based QoS Configurations...............................................................................................................................626
Classify Traffic...........................................................................................................................................................626
Create a QoS Policy................................................................................................................................................. 629
Create Policy Maps................................................................................................................................................... 631
DSCP Color Maps........................................................................................................................................................... 634
Creating a DSCP Color Map...................................................................................................................................634
Displaying DSCP Color Maps................................................................................................................................. 635
Displaying a DSCP Color Policy Configuration ................................................................................................. 635
Enabling QoS Rate Adjustment................................................................................................................................... 636
Enabling Strict-Priority Queueing............................................................................................................................... 636
Weighted Random Early Detection.............................................................................................................................637
Creating WRED Profiles...........................................................................................................................................637
Applying a WRED Profile to Traffic...................................................................................................................... 638
Displaying Default and Configured WRED Profiles........................................................................................... 638
Displaying WRED Drop Statistics.......................................................................................................................... 638
Displaying egress–queue Statistics...................................................................................................................... 639
Pre-Calculating Available QoS CAM Space..............................................................................................................639
Configuring Weights and ECN for WRED ................................................................................................................640
Configuring WRED and ECN Attributes.....................................................................................................................641
Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................................... 642
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class..........................642
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Classifying Incoming Packets Using ECN and Color-Marking........................................................................643
Sample configuration to mark non-ecn packets as “yellow” with single traffic class..............................644
Applying Layer 2 Match Criteria on a Layer 3 Interface....................................................................................... 645
Applying DSCP and VLAN Match Criteria on a Service Queue........................................................................... 646
Classifying Incoming Packets Using ECN and Color-Marking............................................................................. 646
Guidelines for Configuring ECN for Classifying and Color-Marking Packets...................................................648
Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class............................... 649
Sample configuration to mark non-ecn packets as “yellow” with single traffic class....................................649
Chapter 41: Routing Information Protocol (RIP)........................................................................ 651
Protocol Overview...........................................................................................................................................................651
RIPv1............................................................................................................................................................................. 651
RIPv2............................................................................................................................................................................ 651
Implementation Information.......................................................................................................................................... 651
Configuration Information.............................................................................................................................................652
Configuration Task List............................................................................................................................................652
RIP Configuration Example..................................................................................................................................... 657
Chapter 42: Remote Monitoring (RMON).................................................................................. 663
Implementation Information......................................................................................................................................... 663
Fault Recovery.................................................................................................................................................................663
Setting the RMON Alarm........................................................................................................................................ 663
Configuring an RMON Event................................................................................................................................. 664
Configuring RMON Collection Statistics.............................................................................................................665
Configuring the RMON Collection History......................................................................................................... 665
Chapter 43: Rapid Spanning Tree Protocol (RSTP)................................................................... 666
Protocol Overview..........................................................................................................................................................666
Configuring Rapid Spanning Tree............................................................................................................................... 666
Important Points to Remember................................................................................................................................... 667
RSTP and VLT............................................................................................................................................................667
Configuring Interfaces for Layer 2 Mode..................................................................................................................667
Enabling Rapid Spanning Tree Protocol Globally.................................................................................................... 668
Adding and Removing Interfaces................................................................................................................................ 670
Modifying Global Parameters.......................................................................................................................................670
Enabling SNMP Traps for Root Elections and Topology Changes.................................................................671
Modifying Interface Parameters.................................................................................................................................. 671
Enabling SNMP Traps for Root Elections and Topology Changes......................................................................672
Influencing RSTP Root Selection................................................................................................................................ 672
Configuring an EdgePort...............................................................................................................................................672
Configuring Fast Hellos for Link State Detection................................................................................................... 673
Chapter 44: Software-Defined Networking (SDN)..................................................................... 674
Chapter 45: Security................................................................................................................. 675
AAA Accounting.............................................................................................................................................................. 675
Configuration Task List for AAA Accounting......................................................................................................675
AAA Authentication.........................................................................................................................................................677
Configuration Task List for AAA Authentication................................................................................................677
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