Dell C9010 Modular Chassis Switch User guide

Dell EMC Networking Configuration Guide

for the C9010 Series

Version 9.14.2.8

September 2020

Rev. A00

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid

the problem.

NOTE: A WARNING indicates a potential for property damage, personal injury, or death.

Other trademarks may be trademarks of their respective owners.

Chapter 1: About this Guide.........................................................................................................32

Audience.............................................................................................................................................................................. 32

Conventions........................................................................................................................................................................32

Related Documents...........................................................................................................................................................32

Chapter 2: Configuration Fundamentals...................................................................................... 33

Accessing the Command Line........................................................................................................................................ 33

CLI Modes........................................................................................................................................................................... 33

Navigating CLI Modes................................................................................................................................................ 35

The do Command.............................................................................................................................................................. 37

Undoing Commands..........................................................................................................................................................38

Obtaining Help....................................................................................................................................................................39

Entering and Editing Commands................................................................................................................................... 39

Command History..............................................................................................................................................................40

Filtering show Command Outputs.................................................................................................................................40

Multiple Users in Configuration Mode..........................................................................................................................42

Chapter 3: Getting Started..........................................................................................................43

Console Access..................................................................................................................................................................43

Serial Console............................................................................................................................................................... 43

Mounting an NFS File System........................................................................................................................................44

Default Configuration....................................................................................................................................................... 46

Configuring a Host Name................................................................................................................................................ 46

Accessing the System Remotely................................................................................................................................... 46

Configure the Management Port IP Address....................................................................................................... 46

Configure a Management Route..............................................................................................................................47

Configuring a Username and Password................................................................................................................. 47

Configuring the Enable Password................................................................................................................................. 48

Manage Configuration Files............................................................................................................................................ 48

File Storage...................................................................................................................................................................48

Copy Files to and from the System........................................................................................................................ 49

Save the Running-Configuration............................................................................................................................. 50

Configure the Overload Bit for a Startup Scenario............................................................................................ 50

Viewing Files.................................................................................................................................................................50

Changes in Configuration Files................................................................................................................................. 51

Viewing Command History..............................................................................................................................................52

Upgrading the Dell Networking OS...............................................................................................................................53

Chapter 4: Switch Management.................................................................................................. 54

Configuring Privilege Levels........................................................................................................................................... 54

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 the Following Modes.............................................................................................................. 55

Contents

Contents 3

Applying a Privilege Level to a Username..............................................................................................................57

Applying a Privilege Level to a Terminal Line........................................................................................................57

Configuring Logging..........................................................................................................................................................57

Audit and Security Logs............................................................................................................................................. 57

Configuring Logging Format .............................................................................................................................59

Setting Up a Secure Connection to a Syslog Server................................................................................ 59

Track Login Activity...........................................................................................................................................................61

Restrictions for Tracking Login Activity................................................................................................................. 61

Configuring Login Activity Tracking........................................................................................................................ 61

Display Login Statistics...............................................................................................................................................61

Limit Concurrent Login Sessions...................................................................................................................................63

Restrictions for Limiting the Number of Concurrent Sessions........................................................................ 63

Configuring Concurrent Session Limit....................................................................................................................63

Enabling the System to Clear Existing Sessions.................................................................................................. 63

Enabling Secured CLI Mode............................................................................................................................................64

Log Messages in the Internal Buffer............................................................................................................................ 64

Disabling System Logging............................................................................................................................................... 65

Sending System Messages to a Syslog Server..........................................................................................................65

Configuring a UNIX System as a Syslog Server...................................................................................................65

Display the Logging Buffer and the Logging Configuration....................................................................................66

Changing System Logging Settings..............................................................................................................................66

Configuring a UNIX Logging Facility Level..................................................................................................................67

Synchronizing Log Messages......................................................................................................................................... 68

Enabling Timestamp on Syslog Messages...................................................................................................................68

File Transfer Services.......................................................................................................................................................70

Enabling the FTP Server............................................................................................................................................70

Configuring FTP Server Parameters.......................................................................................................................70

Configuring FTP Client Parameters......................................................................................................................... 71

Terminal Lines..................................................................................................................................................................... 71

Denying and Permitting Access to a Terminal Line..............................................................................................71

Configuring Login Authentication for Terminal Lines..........................................................................................72

Setting Time Out of EXEC Privilege Mode................................................................................................................. 72

Using Telnet to Access Another Network Device..................................................................................................... 73

Lock CONFIGURATION Mode........................................................................................................................................73

LPC Bus Quality Degradation......................................................................................................................................... 74

Recovering from a Forgotten Password .................................................................................................................... 75

Ignoring the Startup Configuration and Booting from the Factory-Default Configuration.............................76

Recovering from a Failed Start...................................................................................................................................... 76

Restoring Factory-Default Settings..............................................................................................................................76

Restoring Factory-Default Boot Environment Variables.................................................................................... 77

Using Hashes to Verify Software Images Before Installation..................................................................... 78

Verifying System Images on C9010 Components......................................................................................................79

When System Images on C9010 Components Do Not Match..........................................................................80

Manually Resetting the System Image on a C9010 Component......................................................................80

Logging in to the Virtual Console of a C9010 Component.................................................................................81

Booting the C9010 from an Image on a Network Server................................................................................... 81

Configuring C9010 Components to Boot from the RPM CP Image................................................................ 81

Viewing the Reason for Last System Reboot.............................................................................................................82

Chapter 5: 802.1X........................................................................................................................83

4

Contents

The Port-Authentication Process................................................................................................................................. 85

EAP over RADIUS........................................................................................................................................................86

Configuring 802.1X............................................................................................................................................................86

Important Points to Remember..................................................................................................................................... 86

Enabling 802.1X..................................................................................................................................................................87

Configuring dot1x Profile ................................................................................................................................................89

Configuring MAC addresses for a do1x Profile.......................................................................................................... 89

Configuring the Static MAB and MAB Profile ...........................................................................................................90

Configuring Critical VLAN ...............................................................................................................................................91

Configuring Request Identity Re-Transmissions........................................................................................................ 91

Configuring a Quiet Period after a Failed Authentication........................................................................................92

Forcibly Authorizing or Unauthorizing a Port............................................................................................................. 93

Re-Authenticating a Port................................................................................................................................................ 93

Configuring Dynamic VLAN Assignment with Port Authentication...................................................................... 94

Guest and Authentication-Fail VLANs......................................................................................................................... 95

Configuring a Guest VLAN........................................................................................................................................96

Configuring an Authentication-Fail VLAN............................................................................................................. 96

Configuring Timeouts................................................................................................................................................. 98

Multi-Host Authentication...............................................................................................................................................98

Multi-Supplicant Authentication................................................................................................................................... 101

MAC Authentication Bypass......................................................................................................................................... 102

MAB in Single-host and Multi-Host Mode...........................................................................................................102

MAB in Multi-Supplicant Authentication Mode.................................................................................................. 103

Configuring MAC Authentication Bypass.............................................................................................................103

Dynamic CoS with 802.1X............................................................................................................................................. 104

Chapter 6: Access Control Lists (ACLs)..................................................................................... 106

IP Access Control Lists (ACLs)....................................................................................................................................106

CAM Usage..................................................................................................................................................................107

User-Configurable CAM Allocation........................................................................................................................108

Allocating CAM for Ingress ACLs on the Port Extender.................................................................................. 108

Allocating CAM for Egress ACLs on the Port Extender...................................................................................109

Implementing ACLs on Dell EMC Networking OS.............................................................................................. 110

ACL Optimization to Increase Number of Supported IPv4 ACLs.......................................................................... 111

Optimizing ACL for More Number of IPv4 ACL Rules.......................................................................................112

IP Fragment Handling...................................................................................................................................................... 112

IP Fragments ACL Examples....................................................................................................................................113

Layer 4 ACL Rules Examples....................................................................................................................................113

Configure a Standard IP ACL........................................................................................................................................ 114

Configuring a Standard IP ACL Filter.................................................................................................................... 115

Configure an Extended IP ACL..................................................................................................................................... 115

Configuring Filters with a Sequence Number......................................................................................................116

Configuring Filters Without a Sequence Number............................................................................................... 117

Configure Layer 2 and Layer 3 ACLs........................................................................................................................... 117

Using ACL VLAN Groups................................................................................................................................................ 118

Guidelines for Configuring ACL VLAN Groups.................................................................................................... 118

Configuring an ACL VLAN Group........................................................................................................................... 119

Allocating ACL VLAN CAM.......................................................................................................................................119

Applying an IP ACL..........................................................................................................................................................120

Applying Ingress ACLs on the Port Extender......................................................................................................120

Contents

5

Applying Egress ACLs................................................................................................................................................121

Applying Layer 3 Egress ACLs on Control-Plane Traffic.................................................................................. 121

Counting ACL Hits..................................................................................................................................................... 122

IP Prefix Lists....................................................................................................................................................................122

Configuration Task List for Prefix Lists................................................................................................................123

ACL Remarks.................................................................................................................................................................... 126

Configuring a Remark............................................................................................................................................... 126

Deleting a Remark......................................................................................................................................................126

ACL Resequencing...........................................................................................................................................................127

Resequencing an ACL or Prefix List...................................................................................................................... 127

Route Maps.......................................................................................................................................................................129

Important Points to Remember....................................................................................................................................129

Configuration Task List for Route Maps.............................................................................................................. 129

Configuring Match Routes....................................................................................................................................... 131

Configuring Set Conditions......................................................................................................................................132

Configure a Route Map for Route Redistribution.............................................................................................. 133

Configure a Route Map for Route Tagging......................................................................................................... 134

Continue Clause......................................................................................................................................................... 134

Configuring a UDF ACL.................................................................................................................................................. 134

Hot-Lock Behavior.......................................................................................................................................................... 136

Chapter 7: Bidirectional Forwarding Detection (BFD).................................................................137

How BFD Works............................................................................................................................................................... 137

BFD Packet Format...................................................................................................................................................138

BFD Sessions.............................................................................................................................................................. 139

BFD Three-Way Handshake.................................................................................................................................... 140

Session State Changes..............................................................................................................................................141

Important Points to Remember.....................................................................................................................................141

Configure BFD...................................................................................................................................................................141

Configure BFD for Physical Ports..........................................................................................................................142

Configure BFD for Static Routes........................................................................................................................... 143

Configure BFD for IPv6 Static Routes................................................................................................................. 146

Configure BFD for OSPF..........................................................................................................................................147

Configure BFD for OSPFv3.....................................................................................................................................152

Configure BFD for IS-IS........................................................................................................................................... 154

Configure BFD for BGP............................................................................................................................................156

Configure BFD for VRRP......................................................................................................................................... 162

Configuring Protocol Liveness................................................................................................................................164

Chapter 8: Border Gateway Protocol IPv4 (BGPv4)....................................................................165

Autonomous Systems (AS)........................................................................................................................................... 165

Sessions and Peers..........................................................................................................................................................167

Establish a Session.................................................................................................................................................... 167

Route Reflectors..............................................................................................................................................................168

BGP Attributes................................................................................................................................................................. 169

Best Path Selection Criteria....................................................................................................................................169

Weight........................................................................................................................................................................... 171

Local Preference.........................................................................................................................................................171

Multi-Exit Discriminators (MEDs).......................................................................................................................... 172

6

Contents

Origin.............................................................................................................................................................................173

AS Path.........................................................................................................................................................................173

Next Hop...................................................................................................................................................................... 174

Multiprotocol BGP........................................................................................................................................................... 174

Implement BGP ............................................................................................................................................................... 174

Advertise IGP Cost as MED for Redistributed Routes..................................................................................... 175

Ignore Router-ID for Some Best-Path Calculations.......................................................................................... 175

Four-Byte AS Numbers............................................................................................................................................ 175

AS4 Number Representation...................................................................................................................................176

AS Number Migration................................................................................................................................................177

BGP4 Management Information Base (MIB)...................................................................................................... 178

Important Points to Remember.............................................................................................................................. 179

Configuration Information..............................................................................................................................................179

BGP Configuration.......................................................................................................................................................... 180

Enabling BGP.............................................................................................................................................................. 180

Configuring AS4 Number Representations..........................................................................................................183

Configuring Peer Groups......................................................................................................................................... 185

Configuring BGP Fast Fail-Over.............................................................................................................................187

Configuring Passive Peering................................................................................................................................... 188

Maintaining Existing AS Numbers During an AS Migration..............................................................................189

Allowing an AS Number to Appear in its Own AS Path.................................................................................... 190

Filtering on an AS-Path Attribute.......................................................................................................................... 190

Regular Expressions as Filters.................................................................................................................................191

Redistributing Routes............................................................................................................................................... 193

Enabling Additional Paths.........................................................................................................................................193

Configuring IP Community Lists.............................................................................................................................194

Configuring an IP Extended Community List...................................................................................................... 195

Filtering Routes with Community Lists.................................................................................................................195

Manipulating the COMMUNITY Attribute............................................................................................................196

Changing MED Attributes........................................................................................................................................ 197

Changing the LOCAL_PREFERENCE Attribute................................................................................................. 197

Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes....198

Changing the WEIGHT Attribute........................................................................................................................... 199

Enabling Multipath.....................................................................................................................................................199

Filtering BGP Routes.................................................................................................................................................199

Filtering BGP Routes Using Route Maps............................................................................................................ 200

Filtering BGP Routes Using AS-PATH Information........................................................................................... 201

Configuring BGP Route Reflectors....................................................................................................................... 201

Aggregating Routes..................................................................................................................................................202

Configuring BGP Confederations..........................................................................................................................202

Enabling Route Flap Dampening............................................................................................................................203

Changing BGP Timers..............................................................................................................................................205

Setting the extended timer.................................................................................................................................... 205

Enabling BGP Neighbor Soft-Reconfiguration...................................................................................................206

Enabling or disabling BGP neighbors.................................................................................................................... 207

Route Map Continue................................................................................................................................................ 208

Enabling MBGP Configurations................................................................................................................................... 208

Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor.................................. 209

BGP Regular Expression Optimization.......................................................................................................................209

Debugging BGP............................................................................................................................................................... 209

Contents

7

Storing Last and Bad PDUs.....................................................................................................................................210

Capturing PDUs...........................................................................................................................................................211

PDU Counters.............................................................................................................................................................212

Sample Configurations....................................................................................................................................................212

Chapter 9: Content Addressable Memory (CAM)........................................................................221

CAM Allocation.................................................................................................................................................................221

Test CAM Usage............................................................................................................................................................. 222

View CAM-ACL Settings...............................................................................................................................................223

View CAM Usage............................................................................................................................................................ 224

Configuring CAM Threshold and Silence Period..................................................................................................... 224

Return to the Default CAM Configuration................................................................................................................225

CAM Optimization...........................................................................................................................................................226

Applications for CAM Profiling.....................................................................................................................................226

Unified Forwarding Table (UFT) Modes....................................................................................................................226

Configuring UFT Modes...........................................................................................................................................227

Chapter 10: Control Plane Policing (CoPP)................................................................................ 228

Z9500 CoPP Implementation.......................................................................................................................................228

CoPP Example................................................................................................................................................................. 230

Configure Control Plane Policing................................................................................................................................. 231

Configuring CoPP for Protocols.............................................................................................................................231

Examples of Configuring CoPP for Protocols.................................................................................................... 232

Configuring CoPP for CPU Queues......................................................................................................................233

Examples of Configuring CoPP for CPU Queues.............................................................................................. 234

Displaying CoPP Configuration.............................................................................................................................. 234

Troubleshooting CoPP Operation............................................................................................................................... 237

Chapter 11: Data Center Bridging (DCB).................................................................................... 245

Enabling Data Center Bridging.....................................................................................................................................245

Ethernet Enhancements in Data Center Bridging...................................................................................................246

Priority-Based Flow Control................................................................................................................................... 246

Enhanced Transmission Selection......................................................................................................................... 247

Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 248

Data Center Bridging in a Traffic Flow................................................................................................................ 249

QoS dot1p Traffic Classification and Queue Assignment......................................................................................249

SNMP Support for PFC and Buffer Statistics Tracking....................................................................................... 250

DCB Maps and its Attributes........................................................................................................................................ 251

Applying a DCB Map on a Line Card.....................................................................................................................254

Data Center Bridging: Default Configuration........................................................................................................... 254

Configuration Notes: PFC and ETS in a DCB Map.................................................................................................255

Configuring Priority-Based Flow Control.................................................................................................................. 257

Configuring Lossless Queues..................................................................................................................................257

Configuring Enhanced Transmission Selection........................................................................................................258

Creating an ETS Priority Group.............................................................................................................................258

ETS Operation with DCBx...................................................................................................................................... 259

Configure a DCBx Operation........................................................................................................................................259

DCBx Operation.........................................................................................................................................................260

DCBx Port Roles........................................................................................................................................................260

8

Contents

DCB Configuration Exchange................................................................................................................................. 261

Configuration Source Election................................................................................................................................261

Propagation of DCB Information...........................................................................................................................262

Auto-Detection and Manual Configuration of the DCBx Version..................................................................262

Behavior of Tagged Packets.................................................................................................................................. 263

Configuration Example for DSCP and PFC Priorities.......................................................................................263

DCBx Example............................................................................................................................................................264

DCBx Prerequisites and Restrictions................................................................................................................... 264

Configuring DCBx..................................................................................................................................................... 265

Verifying the DCB Configuration.................................................................................................................................268

Performing PFC Using DSCP Bits Instead of 802.1p Bits..................................................................................... 277

PFC and ETS Configuration Examples.......................................................................................................................278

Using PFC and ETS to Manage Data Center Traffic..............................................................................................278

Using PFC and ETS to Manage Converged Ethernet Traffic.........................................................................279

Hierarchical Scheduling in ETS Output Policies.................................................................................................280

Priority-Based Flow Control Using Dynamic Buffer Method............................................................................... 280

Configuring the Dynamic Buffer Method...................................................................................................................281

Chapter 12: Debugging and Diagnostics..................................................................................... 283

Offline Diagnostics..........................................................................................................................................................283

Running Port Extender Offline Diagnostics on the Switch.............................................................................283

Running Offline Diagnostics on a Standalone Switch...................................................................................... 289

TRACE Logs..................................................................................................................................................................... 309

Auto Save on Reload, Crash, or Rollover............................................................................................................ 309

Uploading Trace Logs.............................................................................................................................................. 309

Last Restart Reason....................................................................................................................................................... 310

show hardware Commands........................................................................................................................................... 310

Environmental Monitoring..............................................................................................................................................312

Displaying Port Extender Environment Information ......................................................................................... 313

Display Power Supply Status.................................................................................................................................. 313

Display Fan Status..................................................................................................................................................... 314

Display Transceiver Type......................................................................................................................................... 314

Recognize an Over-Temperature Condition........................................................................................................316

Troubleshoot an Over-Temperature Condition.................................................................................................. 316

Troubleshooting Packet Loss........................................................................................................................................318

Displaying Drop Counters.........................................................................................................................................319

Displaying Dataplane Statistics..............................................................................................................................320

Displaying Line-Card Counters............................................................................................................................... 321

Accessing Application Core Dumps............................................................................................................................ 322

Mini Core Dumps.............................................................................................................................................................323

Full Kernel Core Dumps................................................................................................................................................. 323

Enabling TCP Dumps......................................................................................................................................................324

Accessing Port Extender Core and Mini Core Dumps........................................................................................... 324

Chapter 13: Dynamic Host Configuration Protocol (DHCP)........................................................ 325

DHCP Packet Format and Options.............................................................................................................................325

Assign an IP Address using DHCP.............................................................................................................................. 326

Implementation Information..........................................................................................................................................327

Configure the System to be a DHCP Server............................................................................................................328

Contents

9

Configuring the Server for Automatic Address Allocation..............................................................................328

Specifying a Default Gateway................................................................................................................................329

Configure a Method of Hostname Resolution....................................................................................................330

Using DNS for Address Resolution....................................................................................................................... 330

Using NetBIOS WINS for Address Resolution....................................................................................................330

Creating Manual Binding Entries........................................................................................................................... 330

Debugging the DHCP Server.................................................................................................................................. 331

Using DHCP Clear Commands................................................................................................................................331

Configure the System to be a Relay Agent...............................................................................................................331

Configure the System to be a DHCP Client............................................................................................................. 333

DHCP Client on a Management Interface...........................................................................................................333

DHCP Client Operation with Other Features..................................................................................................... 333

DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 334

Configuring Route Leaking between VRFs on DHCP Relay Agent............................................................... 334

Non-default VRF configuration for DHCPv6 helper address...............................................................................335

Configuring DHCP relay source interface.................................................................................................................336

Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................336

Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................336

Configure Secure DHCP................................................................................................................................................337

Option 82 (DHCPv4 relay options).......................................................................................................................338

DHCPv6 relay agent options.................................................................................................................................. 338

DHCP Snooping.........................................................................................................................................................339

Drop DHCP Packets on Snooped VLANs Only................................................................................................... 341

Dynamic ARP Inspection.......................................................................................................................................... 341

Configuring Dynamic ARP Inspection...................................................................................................................342

Source Address Validation............................................................................................................................................ 343

Enabling IP Source Address Validation................................................................................................................ 343

DHCP MAC Source Address Validation............................................................................................................... 344

Enabling IP+MAC Source Address Validation.....................................................................................................344

Viewing the Number of SAV Dropped Packets................................................................................................. 344

Clearing the Number of SAV Dropped Packets.................................................................................................345

Chapter 14: Equal Cost Multi-Path (ECMP)............................................................................... 346

ECMP for Flow-Based Affinity.................................................................................................................................... 346

Enabling Deterministic ECMP Next Hop............................................................................................................. 346

Configuring the Hash Algorithm Seed..................................................................................................................346

Link Bundle Monitoring............................................................................................................................................ 347

Managing ECMP Group Paths..................................................................................................................................... 347

Creating an ECMP Group Bundle................................................................................................................................348

Modifying the ECMP Group Threshold......................................................................................................................348

BGP Multipath Operation with Link Bankwidth.......................................................................................................348

Dynamic Re-calculation of Link Bankwidth.............................................................................................................. 350

Weighted ECMP for Static Routes............................................................................................................................ 350

ECMP Support in L3 Host and LPM Tables..............................................................................................................351

Chapter 15: FCoE Transit...........................................................................................................352

Fibre Channel over Ethernet........................................................................................................................................ 352

Ensure Robustness in a Converged Ethernet Network.........................................................................................352

FIP Snooping on Ethernet Bridges............................................................................................................................. 354

10

Contents

FIP Snooping in a Switch Stack.................................................................................................................................. 355

Using FIP Snooping........................................................................................................................................................ 356

FIP Snooping Prerequisites.....................................................................................................................................356

Important Points to Remember............................................................................................................................. 356

Enabling the FCoE Transit Feature.......................................................................................................................357

Enable FIP Snooping on VLANs............................................................................................................................. 357

Configure the FC-MAP Value.................................................................................................................................357

Configure a Port for a Bridge-to-Bridge Link.....................................................................................................357

Configure a Port for a Bridge-to-FCF Link.........................................................................................................358

Impact on Other Software Features.................................................................................................................... 358

FIP Snooping Restrictions.......................................................................................................................................358

Configuring FIP Snooping............................................................................................................................................. 358

Displaying FIP Snooping Information..........................................................................................................................359

FCoE Transit Configuration Example......................................................................................................................... 364

Chapter 16: FIPS Cryptography................................................................................................. 366

Configuration Tasks....................................................................................................................................................... 366

Preparing the System.................................................................................................................................................... 366

Enabling FIPS Mode....................................................................................................................................................... 367

Generating Host-Keys....................................................................................................................................................367

Monitoring FIPS Mode Status......................................................................................................................................367

Disabling FIPS Mode...................................................................................................................................................... 368

Chapter 17: Flex Hash and Optimized Boot-Up...........................................................................369

Flex Hash Capability Overview.................................................................................................................................... 369

Configuring the Flex Hash Mechanism......................................................................................................................369

LACP Fast Switchover...................................................................................................................................................370

Configuring LACP Fast Switchover............................................................................................................................370

LACP.................................................................................................................................................................................. 370

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................. 370

Sample Configurations................................................................................................................................................... 372

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces................................................................................. 375

Chapter 18: Force10 Resilient Ring Protocol (FRRP)..................................................................376

Protocol Overview.......................................................................................................................................................... 376

Ring Status..................................................................................................................................................................377

Multiple FRRP Rings................................................................................................................................................. 377

Important FRRP Points............................................................................................................................................378

Implementing FRRP.................................................................................................................................................. 378

Important FRRP Concepts......................................................................................................................................378

FRRP Configuration........................................................................................................................................................379

Creating the FRRP Group....................................................................................................................................... 379

Configuring the Control VLAN...............................................................................................................................380

Configuring and Adding the Member VLANs...................................................................................................... 381

Setting the FRRP Timers......................................................................................................................................... 381

Clearing the FRRP Counters.................................................................................................................................. 382

Viewing the FRRP Configuration...........................................................................................................................382

Viewing the FRRP Information.............................................................................................................................. 382

Troubleshooting FRRP...................................................................................................................................................382

Contents

11

Sample Configuration and Topology...........................................................................................................................383

FRRP Support on VLT................................................................................................................................................... 384

Chapter 19: GARP VLAN Registration Protocol (GVRP)............................................................. 387

Configure GVRP..............................................................................................................................................................388

Enabling GVRP Globally.................................................................................................................................................388

Enabling GVRP on a Layer 2 Interface...................................................................................................................... 389

Configure GVRP Registration...................................................................................................................................... 389

Configure a GARP Timer...............................................................................................................................................390

Chapter 20: High Availability (HA)............................................................................................. 391

High Availability on Chassis...........................................................................................................................................391

High Availability in a PE Stack...................................................................................................................................... 391

Online Insertion and Removal....................................................................................................................................... 391

Hitless Behavior...............................................................................................................................................................393

Graceful Restart..............................................................................................................................................................394

Software Resiliency........................................................................................................................................................394

System Health Monitoring...................................................................................................................................... 394

Failure and Event Logging.......................................................................................................................................394

Trace Log.................................................................................................................................................................... 394

Core Dumps................................................................................................................................................................394

System Log.................................................................................................................................................................395

Control Plane Redundancy........................................................................................................................................... 395

Control-Plane Failover............................................................................................................................................. 395

RPM Synchronization.............................................................................................................................................. 396

Forcing an RPM Failover......................................................................................................................................... 396

Specifying an Auto-Failover Limit......................................................................................................................... 396

Disabling Auto-Reboot............................................................................................................................................. 397

Chapter 21: Internet Group Management Protocol (IGMP)........................................................ 398

IGMP Protocol Overview.............................................................................................................................................. 398

IGMP Version 2..........................................................................................................................................................398

IGMP Version 3..........................................................................................................................................................400

Configure IGMP...............................................................................................................................................................402

Viewing IGMP Enabled Interfaces.............................................................................................................................. 403

Selecting an IGMP Version........................................................................................................................................... 403

Viewing IGMP Groups....................................................................................................................................................404

Enabling IGMP Immediate-Leave................................................................................................................................ 404

IGMP Snooping................................................................................................................................................................404

Configuring IGMP Snooping...................................................................................................................................405

Removing a Group-Port Association....................................................................................................................405

Disabling Multicast Flooding...................................................................................................................................405

Specifying a Port as Connected to a Multicast Router................................................................................... 406

Configuring the Switch as Querier....................................................................................................................... 406

Fast Convergence after MSTP Topology Changes................................................................................................ 407

Designating a Multicast Router Interface................................................................................................................. 407

Chapter 22: Interfaces.............................................................................................................. 408

Port Numbering...............................................................................................................................................................409

12

Contents

Interface Types................................................................................................................................................................. 411

View Basic Interface Information.................................................................................................................................412

Resetting an Interface to its Factory Default State................................................................................................417

Enabling a Physical Interface........................................................................................................................................ 418

Physical Interfaces.......................................................................................................................................................... 418

Port Pipes.................................................................................................................................................................... 418

Setting the Speed of Ethernet Interfaces........................................................................................................... 418

Configuration Task List for Physical Interfaces................................................................................................. 419

Overview of Layer Modes........................................................................................................................................419

Configuring Layer 2 (Data Link) Mode................................................................................................................ 420

Configuring Layer 2 (Interface) Mode.................................................................................................................420

Configuring Layer 3 (Network) Mode..................................................................................................................420

Configuring Layer 3 (Interface) Mode..................................................................................................................421

Egress Interface Selection (EIS)..................................................................................................................................421

Configuring EIS.......................................................................................................................................................... 422

Management Interfaces................................................................................................................................................ 422

Configuring a Dedicated Management Interface ............................................................................................. 422

Configuring a Management Interface on an Ethernet Port............................................................................ 423

Port Extender Interfaces...............................................................................................................................................424

VLAN Interfaces..............................................................................................................................................................425

Loopback Interfaces.......................................................................................................................................................426

Null Interfaces..................................................................................................................................................................426

Configuring Port Delay.................................................................................................................................................. 426

Port Channel Interfaces.................................................................................................................................................427

Port Channel Definition and Standards................................................................................................................427

Port Channel Benefits.............................................................................................................................................. 427

Port Channel Implementation.................................................................................................................................427

10/40 Gbps Interfaces in Port Channels............................................................................................................. 428

Configuration Tasks for Port Channel Interfaces..............................................................................................428

Creating a Port Channel.......................................................................................................................................... 428

Adding a Physical Interface to a Port Channel.................................................................................................. 428

Reassigning an Interface to a New Port Channel............................................................................................. 430

Configuring the Minimum Oper Up Links in a Port Channel............................................................................431

Adding or Removing a Port Channel from a VLAN............................................................................................431

Assigning an IP Address to a Port Channel......................................................................................................... 431

Deleting or Disabling a Port Channel.................................................................................................................... 432

Load Balancing Through Port Channels.............................................................................................................. 432

Changing the Hash Algorithm................................................................................................................................ 432

Bulk Configuration.......................................................................................................................................................... 433

Interface Range......................................................................................................................................................... 433

Bulk Configuration Examples..................................................................................................................................433

Defining Interface Range Macros............................................................................................................................... 435

Define the Interface Range.................................................................................................................................... 435

Choosing an Interface-Range Macro................................................................................................................... 435

Monitoring and Maintaining Interfaces......................................................................................................................435

Maintenance Using TDR..........................................................................................................................................436

Displaying Traffic Statistics on HiGig Ports..............................................................................................................437

Link Bundle Monitoring.................................................................................................................................................. 437

Monitoring HiGig Link Bundles.....................................................................................................................................438

Enabling HiGig Link-Bundle Monitoring............................................................................................................... 439

Contents

13

Non Dell-Qualified Transceivers.................................................................................................................................. 440

Splitting QSFP Ports to SFP+ Ports..........................................................................................................................440

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port......................................................................... 441

Configuring wavelength for 10–Gigabit SFP+ optics.............................................................................................442

Link Dampening............................................................................................................................................................... 442

Enabling Link Dampening.........................................................................................................................................443

Using Ethernet Pause Frames for Flow Control......................................................................................................444

Threshold Settings....................................................................................................................................................445

Enabling Pause Frames............................................................................................................................................445

Configure the MTU Size on an Interface.................................................................................................................. 446

Auto-Negotiation on Ethernet Interfaces................................................................................................................. 446

Set Auto-Negotiation Options................................................................................................................................447

Provisioning Combo Ports.............................................................................................................................................447

View Advanced Interface Information....................................................................................................................... 448

Configuring the Interface Sampling Size.............................................................................................................448

Configuring the Traffic Sampling Size Globally....................................................................................................... 449

Dynamic Counters........................................................................................................................................................... 451

Clearing Interface Counters.................................................................................................................................... 451

Chapter 23: Internet Protocol Security (IPSec).........................................................................453

Configuring IPSec ..........................................................................................................................................................453

Chapter 24: IPv4 Routing.......................................................................................................... 455

IP Addresses.................................................................................................................................................................... 455

Configuration Tasks for IP Addresses....................................................................................................................... 456

Assigning IP Addresses to an Interface.....................................................................................................................456

Configuring Static Routes.............................................................................................................................................457

Adding description for IPv4 and IPv6 static routes..........................................................................................458

Configure Static Routes for the Management Interface...................................................................................... 458

Enabling Directed Broadcast........................................................................................................................................459

Resolution of Host Names............................................................................................................................................ 459

Enabling Dynamic Resolution of Host Names.......................................................................................................... 459

Specifying the Local System Domain and a List of Domains............................................................................... 460

Configuring DNS with Traceroute.............................................................................................................................. 460

ARP..................................................................................................................................................................................... 461

Configuration Tasks for ARP.................................................................................................................................. 461

Configuring Static ARP Entries.............................................................................................................................. 461

Configuring ARP Inspection Trust........................................................................................................................ 462

Configuring ARP Timeout........................................................................................................................................462

Enabling Proxy ARP..................................................................................................................................................462

Clearing ARP Cache................................................................................................................................................. 463

ARP Learning via Gratuitous ARP......................................................................................................................... 463

Enabling ARP Learning via Gratuitous ARP........................................................................................................ 463

ARP Learning via ARP Request............................................................................................................................. 463

Configuring ARP Retries..........................................................................................................................................464

ICMP.................................................................................................................................................................................. 465

Configuration Tasks for ICMP............................................................................................................................... 465

Enabling ICMP Unreachable Messages............................................................................................................... 465

ICMP Redirects............................................................................................................................................................... 465

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Contents

Chapter 25: IPv6 Routing.......................................................................................................... 467

Protocol Overview.......................................................................................................................................................... 467

Extended Address Space.........................................................................................................................................467

Stateless Autoconfiguration................................................................................................................................... 467

IPv6 Headers..............................................................................................................................................................468

IPv6 Header Fields....................................................................................................................................................469

Extension Header Fields.......................................................................................................................................... 470

IPv6 Addressing..........................................................................................................................................................471

IPv6 Implementation on the Dell Networking OS....................................................................................................472

Configuring the LPM Table for IPv6 Extended Prefixes....................................................................................... 473

ICMPv6..............................................................................................................................................................................474

Path MTU Discovery...................................................................................................................................................... 474

IPv6 Neighbor Discovery...............................................................................................................................................475

IPv6 Neighbor Discovery of MTU Packets......................................................................................................... 475

Configuring the IPv6 Recursive DNS Server......................................................................................................475

Secure Shell (SSH) Over an IPv6 Transport............................................................................................................ 477

Configuration Tasks for IPv6........................................................................................................................................477

Adjusting Your CAM Profile.................................................................................................................................... 478

Assigning an IPv6 Address to an Interface......................................................................................................... 478

Assigning a Static IPv6 Route................................................................................................................................479

Configuring Telnet with IPv6..................................................................................................................................479

SNMP over IPv6........................................................................................................................................................479

Displaying IPv6 Information....................................................................................................................................480

Displaying an IPv6 Configuration.......................................................................................................................... 480

Displaying IPv6 Routes............................................................................................................................................. 481

Displaying the Running Configuration for an Interface....................................................................................482

Clearing IPv6 Routes................................................................................................................................................482

Disabling ND Entry Timeout....................................................................................................................................482

Configuring IPv6 RA Guard.......................................................................................................................................... 483

Configuring IPv6 RA Guard on an Interface....................................................................................................... 484

Monitoring IPv6 RA Guard......................................................................................................................................485

Chapter 26: Intermediate System to Intermediate System.........................................................486

IS-IS Protocol Overview................................................................................................................................................486

IS-IS Addressing..............................................................................................................................................................486

Multi-Topology IS-IS.......................................................................................................................................................487

Transition Mode.........................................................................................................................................................487

Interface Support......................................................................................................................................................488

Adjacencies.................................................................................................................................................................488

Graceful Restart..............................................................................................................................................................488

Timers.......................................................................................................................................................................... 488

Implementation Information..........................................................................................................................................488

Configuration Information.............................................................................................................................................489

Configuration Tasks for IS-IS.................................................................................................................................489

Configuring the Distance of a Route....................................................................................................................496

Changing the IS-Type.............................................................................................................................................. 497

Redistributing IPv4 Routes..................................................................................................................................... 499

Redistributing IPv6 Routes.....................................................................................................................................500

Contents

15

Configuring Authentication Passwords............................................................................................................... 500

Setting the Overload Bit.......................................................................................................................................... 501

Debugging IS-IS......................................................................................................................................................... 501

IS-IS Metric Styles..........................................................................................................................................................502

Configure Metric Values............................................................................................................................................... 502

Maximum Values in the Routing Table.................................................................................................................503

Change the IS-IS Metric Style in One Level Only............................................................................................. 503

Leaks from One Level to Another.........................................................................................................................504

Sample Configurations.................................................................................................................................................. 505

Chapter 27: iSCSI Optimization.................................................................................................508

iSCSI Optimization Overview.......................................................................................................................................508

Default iSCSI Optimization Values.............................................................................................................................. 510

iSCSI Optimization Prerequisites.................................................................................................................................510

Configuring iSCSI Optimization....................................................................................................................................510

Displaying iSCSI Optimization Information................................................................................................................ 512

Enable and Disable iSCSI Optimization.......................................................................................................................513

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................514

Monitoring iSCSI Traffic Flows.................................................................................................................................... 514

Information Monitored in iSCSI Traffic Flows.......................................................................................................... 514

Detection and Auto-Configuration for Dell EqualLogic Arrays............................................................................. 515

Configuring Detection and Ports for Dell Compellent Arrays............................................................................... 515

Application of Quality of Service to iSCSI Traffic Flows....................................................................................... 516

Chapter 28: Link Aggregation Control Protocol (LACP)..............................................................517

Introduction to Dynamic LAGs and LACP..................................................................................................................517

Important Points to Remember.............................................................................................................................. 517

LACP Modes............................................................................................................................................................... 518

Configuring LACP Commands................................................................................................................................ 518

LACP Configuration Tasks............................................................................................................................................ 518

Creating a LAG........................................................................................................................................................... 519

Configuring the LAG Interfaces as Dynamic....................................................................................................... 519

Setting the LACP Long Timeout............................................................................................................................ 519

Monitoring and Debugging LACP..........................................................................................................................520

Shared LAG State Tracking..........................................................................................................................................520

Configuring Shared LAG State Tracking..............................................................................................................521

Important Points about Shared LAG State Tracking........................................................................................522

LACP Basic Configuration Example............................................................................................................................523

Configure a LAG on ALPHA....................................................................................................................................523

Chapter 29: Layer 2................................................................................................................... 532

Manage the MAC Address Table................................................................................................................................ 532

Clearing the MAC Address Table.......................................................................................................................... 532

Setting the Aging Time for Dynamic Entries...................................................................................................... 532

Configuring a Static MAC Address.......................................................................................................................533

Displaying the MAC Address Table.......................................................................................................................533

MAC Learning Limit........................................................................................................................................................533

Setting the MAC Learning Limit............................................................................................................................ 533

mac learning-limit Dynamic.....................................................................................................................................534

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Contents

mac learning-limit mac-address-sticky................................................................................................................ 534

mac learning-limit station-move............................................................................................................................ 534

mac learning-limit no-station-move......................................................................................................................534

Learning Limit Violation Actions............................................................................................................................ 535

Setting Station Move Violation Actions...............................................................................................................535

Recovering from Learning Limit and Station Move Violations.......................................................................535

Disabling MAC Address Learning on the System.............................................................................................. 536

Enabling port security.............................................................................................................................................. 536

NIC Teaming.....................................................................................................................................................................536

Configure Redundant Pairs...........................................................................................................................................537

Far-End Failure Detection.............................................................................................................................................540

FEFD State Changes.................................................................................................................................................541

Configuring FEFD.......................................................................................................................................................541

Enabling FEFD on an Interface.............................................................................................................................. 542

Debugging FEFD........................................................................................................................................................543

Chapter 30: Link Layer Discovery Protocol (LLDP).................................................................... 544

802.1AB (LLDP) Overview............................................................................................................................................544

Protocol Data Units.................................................................................................................................................. 544

Optional TLVs.................................................................................................................................................................. 546

Management TLVs....................................................................................................................................................546

TIA-1057 (LLDP-MED) Overview................................................................................................................................547

TIA Organizationally Specific TLVs....................................................................................................................... 547

Configure LLDP................................................................................................................................................................551

CONFIGURATION versus INTERFACE Configurations..........................................................................................551

Enabling LLDP..................................................................................................................................................................552

Disabling and Undoing LLDP.................................................................................................................................. 552

Enabling LLDP on Management Ports.......................................................................................................................553

Disabling and Undoing LLDP on Management Ports........................................................................................553

Advertising TLVs.............................................................................................................................................................553

Storing and Viewing Unrecognized LLDP TLVs...................................................................................................... 554

Viewing the LLDP Configuration.................................................................................................................................555

Viewing Information Advertised by Adjacent LLDP Neighbors........................................................................... 556

Examples of Viewing Information Advertised by Neighbors...........................................................................556

Configuring LLDPDU Intervals.....................................................................................................................................557

Configuring LLDP Notification Interval..................................................................................................................... 558

Configuring Transmit and Receive Mode..................................................................................................................558

Configuring a Time to Live........................................................................................................................................... 559

Debugging LLDP............................................................................................................................................................. 560

Relevant Management Objects....................................................................................................................................561

Chapter 31: Multicast Source Discovery Protocol (MSDP).........................................................566

Anycast RP....................................................................................................................................................................... 567

Implementation Information......................................................................................................................................... 568

Configure Multicast Source Discovery Protocol..................................................................................................... 568

Related Configuration Tasks.................................................................................................................................. 568

Enable MSDP................................................................................................................................................................... 572

Manage the Source-Active Cache..............................................................................................................................573

Viewing the Source-Active Cache........................................................................................................................ 573

Contents

17

Limiting the Source-Active Cache........................................................................................................................ 573

Clearing the Source-Active Cache........................................................................................................................574

Enabling the Rejected Source-Active Cache..................................................................................................... 574

Accept Source-Active Messages that Fail the RFP Check.................................................................................. 574

Specifying Source-Active Messages..........................................................................................................................578

Limiting the Source-Active Messages from a Peer................................................................................................ 579

Preventing MSDP from Caching a Local Source.................................................................................................... 579

Preventing MSDP from Caching a Remote Source............................................................................................... 580

Preventing MSDP from Advertising a Local Source.............................................................................................. 580

Logging Changes in Peership States.......................................................................................................................... 581

Terminating a Peership...................................................................................................................................................581

Clearing Peer Statistics..................................................................................................................................................581

Debugging MSDP............................................................................................................................................................582

MSDP with Anycast RP.................................................................................................................................................582

Configuring Anycast RP................................................................................................................................................ 583

Reducing Source-Active Message Flooding.......................................................................................................584

Specifying the RP Address Used in SA Messages............................................................................................584

MSDP Sample Configurations..................................................................................................................................... 586

Chapter 32: Multiple Spanning Tree Protocol (MSTP)................................................................591

Spanning Tree Variations.............................................................................................................................................. 592

Implementation Information....................................................................................................................................592

Configure Multiple Spanning Tree Protocol............................................................................................................. 592

Related Configuration Tasks.................................................................................................................................. 592

Enable Multiple Spanning Tree Globally.................................................................................................................... 593

Adding and Removing Interfaces................................................................................................................................ 593

Creating Multiple Spanning Tree Instances..............................................................................................................593

Influencing MSTP Root Selection............................................................................................................................... 594

Interoperate with Non-Dell Bridges............................................................................................................................595

Changing the Region Name or Revision....................................................................................................................595

Modifying Global Parameters.......................................................................................................................................595

Modifying the Interface Parameters.......................................................................................................................... 596

Configuring an EdgePort...............................................................................................................................................597

Flush MAC Addresses after a Topology Change.....................................................................................................598

MSTP Sample Configurations......................................................................................................................................598

Debugging and Verifying MSTP Configurations.......................................................................................................601

Chapter 33: Multicast Features................................................................................................. 603

Enabling IP Multicast..................................................................................................................................................... 603

Implementation Information......................................................................................................................................... 603

First Packet Forwarding for Lossless Multicast...................................................................................................... 604

Multicast Policies............................................................................................................................................................ 604

IPv4 Multicast Policies.............................................................................................................................................604

Understanding Multicast Traceroute (mtrace)......................................................................................................... 611

Printing Multicast Traceroute (mtrace) Paths..........................................................................................................611

Supported Error Codes.................................................................................................................................................. 613

mtrace Scenarios............................................................................................................................................................. 614

Chapter 34: Multicast Listener Discovery Protocol.................................................................... 620

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Contents

MLD timers.......................................................................................................................................................................623

Reducing Host Response Burstiness....................................................................................................................623

Configuring MLD Version..............................................................................................................................................624

Clearing MLD groups......................................................................................................................................................624

Debugging MLD...............................................................................................................................................................624

Explicit Tracking.............................................................................................................................................................. 624

Reducing Leave Latency............................................................................................................................................... 624

Displaying MLD groups table........................................................................................................................................625

Displaying MLD Interfaces............................................................................................................................................625

MLD Snooping................................................................................................................................................................. 625

Enable MLD Snooping..............................................................................................................................................625

Disable MLD Snooping............................................................................................................................................. 626

Configure the switch as a querier.........................................................................................................................626

Specify port as connected to multicast router..................................................................................................626

Enable Snooping Explicit Tracking........................................................................................................................ 626

Display the MLD Snooping Table...........................................................................................................................627

Chapter 35: Object Tracking......................................................................................................628

Object Tracking Overview............................................................................................................................................ 628

Track Layer 2 Interfaces......................................................................................................................................... 629

Track Layer 3 Interfaces......................................................................................................................................... 629

Track IPv4 and IPv6 Routes...................................................................................................................................630

Track a Metric Threshold........................................................................................................................................630

Tracking a Metric Threshold.................................................................................................................................. 630

Track Route Reachability......................................................................................................................................... 631

Tracking Route Reachability...................................................................................................................................632

Configuring track reachability refresh interval...................................................................................................633

Set Tracking Delays..................................................................................................................................................633

VRRP Object Tracking............................................................................................................................................. 633

Object Tracking Configuration.....................................................................................................................................633

Tracking a Layer 2 Interface...................................................................................................................................634

Tracking a Layer 3 Interface...................................................................................................................................634

Configuring track reachability refresh interval.................................................................................................. 636

Displaying Tracked Objects.......................................................................................................................................... 636

Chapter 36: Open Shortest Path First (OSPFv2 and OSPFv3)................................................... 638

Protocol Overview..........................................................................................................................................................638

Autonomous System (AS) Areas...........................................................................................................................638

Area Types..................................................................................................................................................................639

Networks and Neighbors.........................................................................................................................................640

Router Types..............................................................................................................................................................640

Designated and Backup Designated Routers...................................................................................................... 641

Link-State Advertisements (LSAs)........................................................................................................................641

Virtual Links................................................................................................................................................................ 642

Router Priority and Cost......................................................................................................................................... 643

OSPF Implementation.................................................................................................................................................... 643

Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................ 644

Multi-Process OSPFv2 (IPv4 only)...................................................................................................................... 644

RFC-2328 Compliant OSPF Flooding...................................................................................................................644

Contents

19

OSPF ACK Packing...................................................................................................................................................645

Setting OSPF Adjacency with Cisco Routers.................................................................................................... 645

Configuration Information.............................................................................................................................................646

Configuration Task List for OSPFv2 (OSPF for IPv4).....................................................................................646

Sample Configurations for OSPFv2........................................................................................................................... 656

OSPFv3 NSSA................................................................................................................................................................. 658

Configuration Task List for OSPFv3 (OSPF for IPv6).......................................................................................... 658

Enabling IPv6 Unicast Routing.............................................................................................................................. 659

Assigning IPv6 Addresses on an Interface..........................................................................................................659

Assigning Area ID on an Interface.........................................................................................................................659

Assigning OSPFv3 Process ID and Router ID Globally.....................................................................................660

Assigning OSPFv3 Process ID and Router ID to a VRF...................................................................................660

Configuring the Cost of OSPFv3 Routes.............................................................................................................661

Configuring Stub Areas............................................................................................................................................ 661

Configuring Passive-Interface................................................................................................................................ 661

Redistributing Routes...............................................................................................................................................662

Configuring a Default Route...................................................................................................................................662

OSPFv3 Authentication Using IPsec....................................................................................................................662

Troubleshooting OSPFv3........................................................................................................................................ 668

MIB Support for OSPFv3..............................................................................................................................................669

Viewing the OSPFv3 MIB....................................................................................................................................... 669

Chapter 37: Per-VLAN Spanning Tree Plus (PVST+)...................................................................671

Protocol Overview...........................................................................................................................................................671

Implementation Information..........................................................................................................................................672

Configure Per-VLAN Spanning Tree Plus................................................................................................................. 672

Enabling PVST+...............................................................................................................................................................673

Disabling PVST+.............................................................................................................................................................. 673

Influencing PVST+ Root Selection..............................................................................................................................673

Modifying Global PVST+ Parameters.........................................................................................................................675

Modifying Interface PVST+ Parameters................................................................................................................... 675

Configuring an EdgePort...............................................................................................................................................676

PVST+ in Multi-Vendor Networks...............................................................................................................................677

Enabling PVST+ Extend System ID.............................................................................................................................677

PVST+ Sample Configurations.................................................................................................................................... 678

Chapter 38: PIM Sparse-Mode (PIM-SM)..................................................................................680

Implementation Information......................................................................................................................................... 680

Protocol Overview..........................................................................................................................................................680

Requesting Multicast Traffic..................................................................................................................................680

Refuse Multicast Traffic.......................................................................................................................................... 681

Send Multicast Traffic.............................................................................................................................................. 681

Configuring PIM-SSM.................................................................................................................................................... 681

Related Configuration Tasks.................................................................................................................................. 682

Enable PIM-SM................................................................................................................................................................682

Configuring S,G Expiry Timers.....................................................................................................................................683

Configuring a Static Rendezvous Point.....................................................................................................................683

Overriding Bootstrap Router Updates................................................................................................................. 683

Configuring a Designated Router................................................................................................................................684

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