Dell PowerSwitch S4048T-ON User Manual

Dell EMC Configuration Guide for the S4048T–ON System

9.14.2.4

Notes, cautions, and warnings

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2019 - 11

Rev. A00

Contents

1 About this Guide......................................................................................................................... 33

Audience............................................................................................................................................................................... 33

Conventions......................................................................................................................................................................... 33

Related Documents.............................................................................................................................................................33

2 Configuration Fundamentals....................................................................................................... 34

Accessing the Command Line............................................................................................................................................34

CLI Modes............................................................................................................................................................................ 34

Navigating CLI Modes...................................................................................................................................................36

The do Command................................................................................................................................................................38

Undoing Commands............................................................................................................................................................39

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

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

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

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

Multiple Users in Configuration Mode............................................................................................................................... 41

3 Getting Started..........................................................................................................................42

Console Access....................................................................................................................................................................42

Serial Console.................................................................................................................................................................42

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................... 43

Default Configuration..........................................................................................................................................................44

Configuring a Host Name................................................................................................................................................... 44

Accessing the System Remotely.......................................................................................................................................44

Configure the Management Port IP Address.............................................................................................................44

Configure a Management Route................................................................................................................................. 45

Configuring a Username and Password..................................................................................................................... 45

Configuring the Enable Password..................................................................................................................................... 46

Configuration File Management........................................................................................................................................ 46

Copy Files to and from the System.............................................................................................................................46

Mounting an NFS File System......................................................................................................................................47

Save the Running-Configuration................................................................................................................................. 48

Configure the Overload Bit for a Startup Scenario...................................................................................................49

Viewing Files...................................................................................................................................................................49

Compressing Configuration Files.................................................................................................................................50

Managing the File System..................................................................................................................................................52

Enabling Software Features on Devices Using a Command Option.............................................................................52

View Command History......................................................................................................................................................53

Upgrading Dell EMC Networking OS................................................................................................................................54

Verify Software Images Before Installation......................................................................................................................54

Using HTTP for File Transfers...........................................................................................................................................55

4 Management..............................................................................................................................57

Configuring Privilege Levels............................................................................................................................................... 57

Contents 3

Removing a Command from EXEC Mode..................................................................................................................58

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................... 58

Allowing Access to CONFIGURATION Mode Commands....................................................................................... 58

Allowing Access to Different Modes...........................................................................................................................58

Applying a Privilege Level to a Username...................................................................................................................60

Applying a Privilege Level to a Terminal Line............................................................................................................. 60

Configuring Logging............................................................................................................................................................60

Audit and Security Logs................................................................................................................................................60

Configuring Logging Format ................................................................................................................................ 62

Display the Logging Buffer and the Logging Configuration.....................................................................................62

Setting Up a Secure Connection to a Syslog Server.......................................................................................63

Sending System Messages to a Syslog Server..........................................................................................................64

Track Login Activity............................................................................................................................................................ 64

Restrictions for Tracking Login Activity......................................................................................................................64

Configuring Login Activity Tracking............................................................................................................................ 64

Display Login Statistics................................................................................................................................................. 65

Limit Concurrent Login Sessions.......................................................................................................................................66

Restrictions for Limiting the Number of Concurrent Sessions................................................................................66

Configuring Concurrent Session Limit........................................................................................................................ 66

Enabling the System to Clear Existing Sessions........................................................................................................67

Enabling Secured CLI Mode...............................................................................................................................................67

Log Messages in the Internal Buffer.................................................................................................................................68

Disabling System Logging...................................................................................................................................................68

Sending System Messages to a Syslog Server............................................................................................................... 68

Configuring a UNIX System as a Syslog Server........................................................................................................ 68

Changing System Logging Settings..................................................................................................................................69

Display the Logging Buffer and the Logging Configuration...........................................................................................69

Configuring a UNIX Logging Facility Level....................................................................................................................... 70

Synchronizing Log Messages............................................................................................................................................. 71

Enabling Timestamp on Syslog Messages.........................................................................................................................71

File Transfer Services..........................................................................................................................................................74

Enabling the FTP Server...............................................................................................................................................74

Configuring FTP Server Parameters...........................................................................................................................74

Configuring FTP Client Parameters............................................................................................................................ 75

Terminal Lines...................................................................................................................................................................... 75

Denying and Permitting Access to a Terminal Line...................................................................................................75

Configuring Login Authentication for Terminal Lines................................................................................................76

Setting Timeout for EXEC Privilege Mode.......................................................................................................................77

Using Telnet to get to Another Network Device.............................................................................................................78

Lock CONFIGURATION Mode...........................................................................................................................................78

LPC Bus Quality Degradation.............................................................................................................................................79

Restoring the Factory Default Settings............................................................................................................................79

Restoring Factory Default Environment Variables.................................................................................................... 80

Viewing the Reason for Last System Reboot...................................................................................................................81

5 802.1X.......................................................................................................................................82

Port-Authentication Process............................................................................................................................................. 83

EAP over RADIUS..........................................................................................................................................................84

Configuring 802.1X..............................................................................................................................................................84

Important Points to Remember.........................................................................................................................................85

Contents

Enabling 802.1X................................................................................................................................................................... 85

Configuring Request Identity Re-Transmissions............................................................................................................. 86

Configuring a Quiet Period after a Failed Authentication.........................................................................................87

Forcibly Authorizing or Unauthorizing a Port...................................................................................................................88

Re-Authenticating a Port................................................................................................................................................... 88

Configuring Timeouts..........................................................................................................................................................89

Configuring Dynamic VLAN Assignment with Port Authentication..............................................................................90

Guest and Authentication-Fail VLANs...............................................................................................................................91

Configuring a Guest VLAN............................................................................................................................................91

Configuring an Authentication-Fail VLAN................................................................................................................... 91

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)..........................93

Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................................................93

Guidelines for Configuring ACL VLAN Groups................................................................................................................ 93

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters................................................... 94

Configuring ACL VLAN Groups................................................................................................................................... 94

Configuring FP Blocks for VLAN Parameters............................................................................................................95

Viewing CAM Usage........................................................................................................................................................... 95

Allocating FP Blocks for VLAN Processes....................................................................................................................... 97

Unified Forwarding Table (UFT) Modes...........................................................................................................................97

Configuring UFT Modes................................................................................................................................................97

7 Access Control Lists (ACLs)........................................................................................................98

IP Access Control Lists (ACLs)......................................................................................................................................... 99

CAM Usage.................................................................................................................................................................... 99

Implementing ACLs on Dell EMC Networking OS................................................................................................... 100

Important Points to Remember........................................................................................................................................ 101

Configuration Task List for Route Maps....................................................................................................................101

Configuring Match Routes..........................................................................................................................................103

Configuring Set Conditions.........................................................................................................................................104

Configure a Route Map for Route Redistribution....................................................................................................105

Configure a Route Map for Route Tagging.............................................................................................................. 106

Continue Clause........................................................................................................................................................... 106

IP Fragment Handling........................................................................................................................................................106

IP Fragments ACL Examples...................................................................................................................................... 106

Layer 4 ACL Rules Examples...................................................................................................................................... 107

Configure a Standard IP ACL........................................................................................................................................... 108

Configuring a Standard IP ACL Filter........................................................................................................................ 108

Configure an Extended IP ACL........................................................................................................................................ 109

Configuring Filters with a Sequence Number...........................................................................................................109

Configuring Filters Without a Sequence Number.....................................................................................................110

Configure Layer 2 and Layer 3 ACLs................................................................................................................................ 111

Assign an IP ACL to an Interface.......................................................................................................................................111

Applying an IP ACL............................................................................................................................................................. 112

Counting ACL Hits........................................................................................................................................................ 112

Configure Ingress ACLs..................................................................................................................................................... 112

Configure Egress ACLs...................................................................................................................................................... 113

Applying Egress Layer 3 ACLs (Control-Plane)........................................................................................................ 114

IP Prefix Lists.......................................................................................................................................................................114

Contents

Configuration Task List for Prefix Lists......................................................................................................................115

ACL Remarks.......................................................................................................................................................................118

Configuring a Remark...................................................................................................................................................118

Deleting a Remark.........................................................................................................................................................118

ACL Resequencing............................................................................................................................................................. 119

Resequencing an ACL or Prefix List...........................................................................................................................119

Route Maps........................................................................................................................................................................ 120

Logging of ACL Processes................................................................................................................................................ 121

Guidelines for Configuring ACL Logging.................................................................................................................... 121

Configuring ACL Logging............................................................................................................................................ 122

Flow-Based Monitoring..................................................................................................................................................... 122

Enabling Flow-Based Monitoring................................................................................................................................124

Configuring UDF ACL........................................................................................................................................................ 124

Configuring IP Mirror Access Group................................................................................................................................127

Sample Configuration...................................................................................................................................................127

Example of viewing IP mirror–access–group applied to an Interface...................................................................127

8 Bidirectional Forwarding Detection (BFD)................................................................................... 129

How BFD Works.................................................................................................................................................................129

BFD Packet Format..................................................................................................................................................... 130

BFD Sessions.................................................................................................................................................................131

BFD Three-Way Handshake....................................................................................................................................... 132

Session State Changes................................................................................................................................................133

Important Points to Remember........................................................................................................................................133

Configure BFD....................................................................................................................................................................133

Configure BFD for Physical Ports.............................................................................................................................. 134

Configure BFD for Static Routes...............................................................................................................................135

Configure BFD for IPv6 Static Routes...................................................................................................................... 138

Configure BFD for OSPF............................................................................................................................................ 140

Configure BFD for OSPFv3........................................................................................................................................ 145

Configure BFD for IS-IS...............................................................................................................................................147

Configure BFD for BGP...............................................................................................................................................149

Configure BFD for VRRP............................................................................................................................................ 156

Configuring Protocol Liveness....................................................................................................................................158

9 Border Gateway Protocol (BGP)................................................................................................ 159

BGP IP version 4 (BGPv4) Overview............................................................................................................................. 159

BGP Autonomous Systems........................................................................................................................................ 159

AS4 Number Representation.......................................................................................................................................161

Four-Byte AS Numbers...............................................................................................................................................163

BGP router ID............................................................................................................................................................... 163

Sessions and Peers...................................................................................................................................................... 163

Establish a Session.......................................................................................................................................................163

BGP Attributes for selecting Best Path.................................................................................................................... 164

Multiprotocol BGP....................................................................................................................................................... 169

BGP global and address family configuration........................................................................................................... 170

Implement BGP with Dell EMC Networking OS....................................................................................................... 171

Configuration Information........................................................................................................................................... 174

Basic BGP configuration tasks......................................................................................................................................... 174

Contents

Prerequisite for configuring a BGP network.............................................................................................................174

Restrictions................................................................................................................................................................... 174

Enabling BGP................................................................................................................................................................ 174

Enabling four-byte autonomous system numbers................................................................................................... 176

Changing a BGP router ID...........................................................................................................................................177

Configuring AS4 Number Representations............................................................................................................... 177

Configuring a BGP peer...............................................................................................................................................178

Example-Configuring BGP routing between peers..................................................................................................179

BGP peer group............................................................................................................................................................180

Advanced BGP configuration tasks................................................................................................................................. 187

Route-refresh and Soft-reconfiguration................................................................................................................... 187

Aggregating Routes..................................................................................................................................................... 189

Filtering BGP..................................................................................................................................................................191

Configuring BGP Fast Fall-Over.................................................................................................................................196

Configuring Passive Peering....................................................................................................................................... 197

Enabling Graceful Restart........................................................................................................................................... 198

Redistributing Routes.................................................................................................................................................. 199

Redistributing iBGP Routes into IGP......................................................................................................................... 199

Enabling Additional Paths........................................................................................................................................... 202

Configuring IP Community Lists................................................................................................................................202

Configuring an IP Extended Community List...........................................................................................................203

Configure BGP attributes...........................................................................................................................................204

Enabling Multipath.......................................................................................................................................................207

Route Reflectors......................................................................................................................................................... 208

Enabling Route Flap Dampening................................................................................................................................209

Changing BGP keepalive and hold timers.................................................................................................................. 211

Setting the extended timer.........................................................................................................................................212

Enabling or disabling BGP neighbors......................................................................................................................... 212

Route Map Continue....................................................................................................................................................213

Configuring BGP Confederations...............................................................................................................................214

Configuring a BGP VRF address family.....................................................................................................................214

Maintaining Existing AS Numbers During an AS Migration.....................................................................................215

Allowing an AS Number to Appear in its Own AS Path...........................................................................................216

Enabling MBGP Configurations.................................................................................................................................. 217

MBGP support for IPv6...............................................................................................................................................217

Configuring IPv6 MBGP between peers................................................................................................................... 217

Example-Configuring IPv4 and IPv6 neighbors........................................................................................................218

Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor............................................ 220

BGP Regular Expression Optimization......................................................................................................................222

Debugging BGP........................................................................................................................................................... 222

10 Content Addressable Memory (CAM)........................................................................................224

CAM Allocation.................................................................................................................................................................. 224

Test CAM Usage...............................................................................................................................................................225

View CAM-ACL Settings..................................................................................................................................................226

View CAM Usage...............................................................................................................................................................227

Configuring CAM Threshold and Silence Period........................................................................................................... 228

CAM Optimization.............................................................................................................................................................229

Troubleshoot CAM Profiling.............................................................................................................................................229

QoS CAM Region Limitation...................................................................................................................................... 229

Contents

11 Control Plane Policing (CoPP).................................................................................................. 230

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

Configuring CoPP for Protocols................................................................................................................................232

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

CoPP for OSPFv3 Packets........................................................................................................................................ 234

Configuring CoPP for OSPFv3..................................................................................................................................236

Displaying CoPP Configuration .................................................................................................................................237

12 Data Center Bridging (DCB)..................................................................................................... 239

Ethernet Enhancements in Data Center Bridging.........................................................................................................239

Priority-Based Flow Control.......................................................................................................................................240

Enhanced Transmission Selection..............................................................................................................................241

Data Center Bridging Exchange Protocol (DCBx)..................................................................................................242

Data Center Bridging in a Traffic Flow..................................................................................................................... 242

Enabling Data Center Bridging.........................................................................................................................................242

DCB Maps and its Attributes..................................................................................................................................... 243

Data Center Bridging: Default Configuration.................................................................................................................243

Configuring Priority-Based Flow Control....................................................................................................................... 244

Configuring Lossless Queues..................................................................................................................................... 244

Configuring PFC in a DCB Map.......................................................................................................................................246

Applying a DCB Map on a Port........................................................................................................................................247

Configuring PFC without a DCB Map.............................................................................................................................247

Priority-Based Flow Control Using Dynamic Buffer Method.......................................................................................249

Behavior of Tagged Packets............................................................................................................................................249

Configuration Example for DSCP and PFC Priorities...................................................................................................250

Using PFC to Manage Converged Ethernet Traffic......................................................................................................251

Configure Enhanced Transmission Selection................................................................................................................. 251

ETS Prerequisites and Restrictions........................................................................................................................... 251

Creating an ETS Priority Group..................................................................................................................................251

ETS Operation with DCBx..........................................................................................................................................252

Configuring Bandwidth Allocation for DCBx CIN.................................................................................................... 253

Configuring ETS in a DCB Map................................................................................................................................. 253

Hierarchical Scheduling in ETS Output Policies............................................................................................................ 254

Using ETS to Manage Converged Ethernet Traffic..................................................................................................... 255

Applying DCB Policies in a Switch Stack....................................................................................................................... 255

Configure a DCBx Operation...........................................................................................................................................255

DCBx Operation...........................................................................................................................................................255

DCBx Port Roles..........................................................................................................................................................255

DCB Configuration Exchange.................................................................................................................................... 257

Configuration Source Election................................................................................................................................... 257

Propagation of DCB Information............................................................................................................................... 257

Auto-Detection and Manual Configuration of the DCBx Version......................................................................... 258

DCBx Example............................................................................................................................................................. 258

DCBx Prerequisites and Restrictions........................................................................................................................259

Configuring DCBx........................................................................................................................................................259

Verifying the DCB Configuration.....................................................................................................................................262

QoS dot1p Traffic Classification and Queue Assignment.............................................................................................270

Configuring the Dynamic Buffer Method........................................................................................................................271

Contents

Sample DCB Configuration.............................................................................................................................................. 272

13 Dynamic Host Configuration Protocol (DHCP)........................................................................... 275

DHCP Packet Format and Options.................................................................................................................................275

Assign an IP Address using DHCP...................................................................................................................................276

Implementation Information............................................................................................................................................. 277

Configure the System to be a DHCP Server.................................................................................................................278

Configuring the Server for Automatic Address Allocation..................................................................................... 278

Specifying a Default Gateway....................................................................................................................................279

Configure a Method of Hostname Resolution......................................................................................................... 279

Using DNS for Address Resolution............................................................................................................................279

Using NetBIOS WINS for Address Resolution.........................................................................................................280

Creating Manual Binding Entries............................................................................................................................... 280

Debugging the DHCP Server.....................................................................................................................................280

Using DHCP Clear Commands.................................................................................................................................. 280

Configure the System to be a Relay Agent.................................................................................................................... 281

Configure the System to be a DHCP Client.................................................................................................................. 282

Configuring the DHCP Client System.......................................................................................................................282

DHCP Client on a Management Interface................................................................................................................283

DHCP Client Operation with Other Features.......................................................................................................... 284

DHCP Relay When DHCP Server and Client are in Different VRFs...........................................................................285

Configuring Route Leaking between VRFs on DHCP Relay Agent...................................................................... 285

Non-default VRF configuration for DHCPv6 helper address...................................................................................... 286

Configuring DHCP relay source interface......................................................................................................................286

Global DHCP relay source IPv4 or IPv6 configuration .......................................................................................... 286

Interface level DHCP relay source IPv4 or IPv6 configuration .............................................................................287

Configure the System for User Port Stacking (Option 230)...................................................................................... 288

Configure Secure DHCP.................................................................................................................................................. 288

Option 82 (DHCPv4 relay options)...........................................................................................................................288

DHCPv6 relay agent options..................................................................................................................................... 289

DHCP Snooping...........................................................................................................................................................289

Drop DHCP Packets on Snooped VLANs Only....................................................................................................... 293

Dynamic ARP Inspection............................................................................................................................................ 294

Configuring Dynamic ARP Inspection.......................................................................................................................294

Source Address Validation............................................................................................................................................... 295

Enabling IP Source Address Validation..................................................................................................................... 295

DHCP MAC Source Address Validation................................................................................................................... 296

Enabling IP+MAC Source Address Validation..........................................................................................................296

Viewing the Number of SAV Dropped Packets.......................................................................................................297

Clearing the Number of SAV Dropped Packets...................................................................................................... 297

14 Equal Cost Multi-Path (ECMP).................................................................................................298

ECMP for Flow-Based Affinity........................................................................................................................................298

Configuring the Hash Algorithm................................................................................................................................ 298

Enabling Deterministic ECMP Next Hop..................................................................................................................298

Configuring the Hash Algorithm Seed...................................................................................................................... 298

Link Bundle Monitoring.....................................................................................................................................................299

Managing ECMP Group Paths.................................................................................................................................. 299

Creating an ECMP Group Bundle............................................................................................................................. 300

Contents

Modifying the ECMP Group Threshold....................................................................................................................300

RTAG7................................................................................................................................................................................. 301

Flow-based Hashing for ECMP.......................................................................................................................................302

15 FIP Snooping.......................................................................................................................... 305

Fibre Channel over Ethernet........................................................................................................................................... 305

Ensure Robustness in a Converged Ethernet Network............................................................................................... 305

FIP Snooping on Ethernet Bridges..................................................................................................................................306

FIP Snooping in a Switch Stack...................................................................................................................................... 308

Using FIP Snooping...........................................................................................................................................................308

FIP Snooping Prerequisites........................................................................................................................................ 308

Important Points to Remember.................................................................................................................................308

Enabling the FCoE Transit Feature...........................................................................................................................309

Enable FIP Snooping on VLANs................................................................................................................................ 309

Configure the FC-MAP Value.....................................................................................................................................310

Configure a Port for a Bridge-to-Bridge Link...........................................................................................................310

Configure a Port for a Bridge-to-FCF Link...............................................................................................................310

Impact on Other Software Features......................................................................................................................... 310

FIP Snooping Restrictions...........................................................................................................................................310

Configuring FIP Snooping............................................................................................................................................ 311

Displaying FIP Snooping Information................................................................................................................................311

FCoE Transit Configuration Example.............................................................................................................................. 316

16 FIPS Cryptography.................................................................................................................. 318

Configuration Tasks...........................................................................................................................................................318

Preparing the System........................................................................................................................................................318

Enabling FIPS Mode...........................................................................................................................................................318

Generating Host-Keys.......................................................................................................................................................319

Monitoring FIPS Mode Status..........................................................................................................................................319

Disabling FIPS Mode..........................................................................................................................................................319

17 Force10 Resilient Ring Protocol (FRRP).....................................................................................321

Protocol Overview............................................................................................................................................................. 321

Ring Status...................................................................................................................................................................322

Multiple FRRP Rings................................................................................................................................................... 322

Important FRRP Points...............................................................................................................................................323

Important FRRP Concepts.........................................................................................................................................324

Implementing FRRP.......................................................................................................................................................... 324

FRRP Configuration..........................................................................................................................................................325

Creating the FRRP Group.......................................................................................................................................... 325

Configuring the Control VLAN...................................................................................................................................325

Configuring and Adding the Member VLANs.......................................................................................................... 326

Setting the FRRP Timers............................................................................................................................................327

Clearing the FRRP Counters......................................................................................................................................327

Viewing the FRRP Configuration...............................................................................................................................327

Viewing the FRRP Information.................................................................................................................................. 327

Troubleshooting FRRP......................................................................................................................................................328

Sample Configuration and Topology...............................................................................................................................328

FRRP Support on VLT......................................................................................................................................................329

Contents

18 GARP VLAN Registration Protocol (GVRP)................................................................................332

Configure GVRP................................................................................................................................................................333

Enabling GVRP Globally....................................................................................................................................................333

Enabling GVRP on a Layer 2 Interface........................................................................................................................... 334

Configure GVRP Registration..........................................................................................................................................334

Configure a GARP Timer..................................................................................................................................................335

RPM Redundancy............................................................................................................................................................. 335

19 High Availability (HA).............................................................................................................. 336

Component Redundancy..................................................................................................................................................336

Automatic and Manual Stack Unit Failover..............................................................................................................336

Synchronization between Management and Standby Units..................................................................................337

Forcing a Stack Unit Failover..................................................................................................................................... 337

Specifying an Auto-Failover Limit..............................................................................................................................337

Disabling Auto-Reboot................................................................................................................................................ 337

Pre-Configuring a Stack Unit Slot...................................................................................................................................338

Removing a Provisioned Logical Stack Unit.................................................................................................................. 338

Hitless Behavior.................................................................................................................................................................338

Graceful Restart................................................................................................................................................................ 338

Software Resiliency...........................................................................................................................................................339

Software Component Health Monitoring.................................................................................................................339

System Health Monitoring......................................................................................................................................... 339

Failure and Event Logging..........................................................................................................................................339

Hot-Lock Behavior............................................................................................................................................................340

20 Internet Group Management Protocol (IGMP)........................................................................... 341

IGMP Protocol Overview..................................................................................................................................................341

IGMP Version 2............................................................................................................................................................ 341

IGMP Version 3............................................................................................................................................................342

Configure IGMP.................................................................................................................................................................345

Viewing IGMP Enabled Interfaces...................................................................................................................................345

Selecting an IGMP Version.............................................................................................................................................. 346

Viewing IGMP Groups.......................................................................................................................................................347

Adjusting Timers................................................................................................................................................................ 347

Adjusting Query and Response Timers..................................................................................................................... 347

Preventing a Host from Joining a Group........................................................................................................................348

Enabling IGMP Immediate-Leave....................................................................................................................................350

IGMP Snooping.................................................................................................................................................................. 351

Configuring IGMP Snooping....................................................................................................................................... 351

Removing a Group-Port Association......................................................................................................................... 351

Disabling Multicast Flooding.......................................................................................................................................352

Specifying a Port as Connected to a Multicast Router..........................................................................................352

Configuring the Switch as Querier............................................................................................................................352

Fast Convergence after MSTP Topology Changes......................................................................................................353

Egress Interface Selection (EIS) for HTTP and IGMP Applications...........................................................................353

Designating a Multicast Router Interface...................................................................................................................... 359

21 Interfaces...............................................................................................................................360

Contents

Interface Types.................................................................................................................................................................. 361

View Basic Interface Information.....................................................................................................................................361

Resetting an Interface to its Factory Default State..................................................................................................... 363

Enabling a Physical Interface........................................................................................................................................... 363

Physical Interfaces............................................................................................................................................................ 363

Configuration Task List for Physical Interfaces.......................................................................................................364

Overview of Layer Modes..........................................................................................................................................364

Configuring Layer 2 (Data Link) Mode..................................................................................................................... 364

Configuring Layer 2 (Interface) Mode......................................................................................................................365

Configuring Layer 3 (Network) Mode...................................................................................................................... 365

Configuring Layer 3 (Interface) Mode......................................................................................................................365

Automatic recovery of an Err-disabled interface..........................................................................................................366

Configuring an automatic recovery for an Err-disabled interface.........................................................................366

Egress Interface Selection (EIS)..................................................................................................................................... 367

Configuring EIS............................................................................................................................................................ 367

Management Interfaces................................................................................................................................................... 368

Configuring Management Interfaces........................................................................................................................368

Configuring a Management Interface on an Ethernet Port...................................................................................369

VLAN Interfaces................................................................................................................................................................ 370

Loopback Interfaces......................................................................................................................................................... 370

Null Interfaces.....................................................................................................................................................................371

Configuring Port Delay...................................................................................................................................................... 371

Port Channel Interfaces.................................................................................................................................................... 371

Port Channel Definition and Standards..................................................................................................................... 371

Port Channel Benefits.................................................................................................................................................372

Port Channel Implementation.................................................................................................................................... 372

Interfaces in Port Channels........................................................................................................................................372

Configuration Tasks for Port Channel Interfaces....................................................................................................372

Creating a Port Channel............................................................................................................................................. 373

Adding a Physical Interface to a Port Channel........................................................................................................ 373

Reassigning an Interface to a New Port Channel................................................................................................... 375

Configuring the Minimum Oper Up Links in a Port Channel.................................................................................. 375

Adding or Removing a Port Channel from a VLAN.................................................................................................375

Assigning an IP Address to a Port Channel..............................................................................................................376

Deleting or Disabling a Port Channel......................................................................................................................... 377

Load Balancing Through Port Channels....................................................................................................................377

Changing the Hash Algorithm.................................................................................................................................... 377

Bulk Configuration.............................................................................................................................................................378

Interface Range........................................................................................................................................................... 378

Bulk Configuration Examples......................................................................................................................................378

Defining Interface Range Macros....................................................................................................................................379

Define the Interface Range........................................................................................................................................380

Choosing an Interface-Range Macro........................................................................................................................380

Monitoring and Maintaining Interfaces...........................................................................................................................380

Maintenance Using TDR..............................................................................................................................................381

Non Dell-Qualified Transceivers.......................................................................................................................................381

Splitting 40G Ports without Reload................................................................................................................................ 382

Splitting QSFP Ports to SFP+ Ports.............................................................................................................................. 383

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................... 384

Link Dampening................................................................................................................................................................. 386

Contents

Enabling Link Dampening............................................................................................................................................388

Link Bundle Monitoring.....................................................................................................................................................389

Using Ethernet Pause Frames for Flow Control........................................................................................................... 389

Enabling Pause Frames...............................................................................................................................................390

Configure the MTU Size on an Interface.......................................................................................................................390

Port-Pipes...........................................................................................................................................................................391

Auto-Negotiation on Ethernet Interfaces.......................................................................................................................391

Setting the Speed of Ethernet Interfaces................................................................................................................392

Set Auto-Negotiation Options................................................................................................................................... 393

View Advanced Interface Information............................................................................................................................393

Configuring the Interface Sampling Size..................................................................................................................394

Configuring the Traffic Sampling Size Globally............................................................................................................. 395

Dynamic Counters.............................................................................................................................................................396

Clearing Interface Counters....................................................................................................................................... 397

Discard Counters...............................................................................................................................................................397

Display discard counters.............................................................................................................................................397

22 Internet Protocol Security (IPSec)...........................................................................................399

Configuring IPSec ............................................................................................................................................................ 399

23 IPv4 Routing...........................................................................................................................401

IP Addresses...................................................................................................................................................................... 402

Configuration Tasks for IP Addresses............................................................................................................................ 402

Assigning IP Addresses to an Interface..........................................................................................................................402

Configuring Static Routes................................................................................................................................................403

Adding description for IPv4 and IPv6 static routes................................................................................................ 404

Configure Static Routes for the Management Interface.............................................................................................404

IPv4 Path MTU Discovery Overview..............................................................................................................................405

Using the Configured Source IP Address in ICMP Messages.....................................................................................405

Configuring the Duration to Establish a TCP Connection........................................................................................... 406

Enabling Directed Broadcast........................................................................................................................................... 406

Resolution of Host Names............................................................................................................................................... 406

Enabling Dynamic Resolution of Host Names................................................................................................................407

Specifying the Local System Domain and a List of Domains.......................................................................................407

Configuring DNS with Traceroute...................................................................................................................................407

ARP..................................................................................................................................................................................... 408

Configuration Tasks for ARP........................................................................................................................................... 408

Configuring Static ARP Entries....................................................................................................................................... 408

Enabling Proxy ARP.......................................................................................................................................................... 409

Clearing ARP Cache..........................................................................................................................................................409

ARP Learning via Gratuitous ARP...................................................................................................................................409

Enabling ARP Learning via Gratuitous ARP....................................................................................................................410

ARP Learning via ARP Request....................................................................................................................................... 410

Configuring ARP Retries....................................................................................................................................................411

ICMP.....................................................................................................................................................................................411

Configuration Tasks for ICMP...........................................................................................................................................411

Enabling ICMP Unreachable Messages........................................................................................................................... 411

ICMP Redirects.................................................................................................................................................................. 412

UDP Helper......................................................................................................................................................................... 412

Contents

Enabling UDP Helper......................................................................................................................................................... 413

Configuring a Broadcast Address.................................................................................................................................... 413

Configurations Using UDP Helper....................................................................................................................................414

UDP Helper with Broadcast-All Addresses.....................................................................................................................414

UDP Helper with Subnet Broadcast Addresses.............................................................................................................415

UDP Helper with Configured Broadcast Addresses......................................................................................................415

UDP Helper with No Configured Broadcast Addresses................................................................................................416

Troubleshooting UDP Helper............................................................................................................................................416

24 IPv6 Routing........................................................................................................................... 417

Protocol Overview............................................................................................................................................................. 417

Extended Address Space............................................................................................................................................ 417

Stateless Autoconfiguration........................................................................................................................................417

IPv6 Headers................................................................................................................................................................ 418

IPv6 Header Fields....................................................................................................................................................... 418

Extension Header Fields............................................................................................................................................. 420

Addressing.....................................................................................................................................................................421

Implementing IPv6 with Dell EMC Networking OS....................................................................................................... 421

ICMPv6...............................................................................................................................................................................423

Path MTU discovery......................................................................................................................................................... 423

IPv6 Neighbor Discovery..................................................................................................................................................424

IPv6 Neighbor Discovery of MTU Packets.............................................................................................................. 425

Configuration Task List for IPv6 RDNSS....................................................................................................................... 425

Configuring the IPv6 Recursive DNS Server...........................................................................................................425

Debugging IPv6 RDNSS Information Sent to the Host .........................................................................................426

Displaying IPv6 RDNSS Information......................................................................................................................... 426

Secure Shell (SSH) Over an IPv6 Transport................................................................................................................. 427

Configuration Tasks for IPv6........................................................................................................................................... 427

Adjusting Your CAM-Profile....................................................................................................................................... 427

Assigning an IPv6 Address to an Interface.............................................................................................................. 428

Assigning a Static IPv6 Route....................................................................................................................................428

Configuring Telnet with IPv6..................................................................................................................................... 429

SNMP over IPv6..........................................................................................................................................................429

Displaying IPv6 Information........................................................................................................................................429

Displaying an IPv6 Interface Information..................................................................................................................430

Showing IPv6 Routes..................................................................................................................................................430

Showing the Running-Configuration for an Interface............................................................................................. 431

Clearing IPv6 Routes...................................................................................................................................................432

Disabling ND Entry Timeout....................................................................................................................................... 432

Configuring IPv6 RA Guard..............................................................................................................................................432

Configuring IPv6 RA Guard on an Interface............................................................................................................ 434

Monitoring IPv6 RA Guard......................................................................................................................................... 434

25 iSCSI Optimization................................................................................................................. 435

iSCSI Optimization Overview...........................................................................................................................................435

Monitoring iSCSI Traffic Flows..................................................................................................................................436

Application of Quality of Service to iSCSI Traffic Flows........................................................................................ 436

Information Monitored in iSCSI Traffic Flows..........................................................................................................437

Detection and Auto-Configuration for Dell EqualLogic Arrays.............................................................................. 437

Contents

Configuring Detection and Ports for Dell Compellent Arrays................................................................................ 438

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................. 438

Enable and Disable iSCSI Optimization.....................................................................................................................439

Default iSCSI Optimization Values.................................................................................................................................. 439

iSCSI Optimization Prerequisites.....................................................................................................................................439

Configuring iSCSI Optimization.......................................................................................................................................440

Displaying iSCSI Optimization Information......................................................................................................................441

26 Intermediate System to Intermediate System........................................................................... 443

IS-IS Protocol Overview...................................................................................................................................................443

IS-IS Addressing................................................................................................................................................................ 443

Multi-Topology IS-IS......................................................................................................................................................... 444

Transition Mode...........................................................................................................................................................444

Interface Support........................................................................................................................................................ 444

Adjacencies...................................................................................................................................................................444

Graceful Restart................................................................................................................................................................445

Timers........................................................................................................................................................................... 445

Implementation Information.............................................................................................................................................445

Configuration Information................................................................................................................................................ 446

Configuration Tasks for IS-IS.....................................................................................................................................446

Configuring the Distance of a Route........................................................................................................................ 453

Changing the IS-Type.................................................................................................................................................453

Redistributing IPv4 Routes........................................................................................................................................ 455

Redistributing IPv6 Routes........................................................................................................................................ 455

Configuring Authentication Passwords.................................................................................................................... 456

Setting the Overload Bit.............................................................................................................................................456

Debugging IS-IS........................................................................................................................................................... 457

IS-IS Metric Styles............................................................................................................................................................ 458

Configure Metric Values...................................................................................................................................................458

Maximum Values in the Routing Table..................................................................................................................... 458

Change the IS-IS Metric Style in One Level Only................................................................................................... 458

Leaks from One Level to Another.............................................................................................................................460

Sample Configurations..................................................................................................................................................... 460

27 Link Aggregation Control Protocol (LACP)................................................................................463

Introduction to Dynamic LAGs and LACP......................................................................................................................463

Important Points to Remember.................................................................................................................................463

LACP Modes................................................................................................................................................................463

Configuring LACP Commands...................................................................................................................................464

LACP Configuration Tasks...............................................................................................................................................464

Creating a LAG............................................................................................................................................................ 464

Configuring the LAG Interfaces as Dynamic............................................................................................................465

Setting the LACP Long Timeout............................................................................................................................... 465

Monitoring and Debugging LACP..............................................................................................................................466

Shared LAG State Tracking............................................................................................................................................. 466

Configuring Shared LAG State Tracking.................................................................................................................. 467

Important Points about Shared LAG State Tracking..............................................................................................468

LACP Basic Configuration Example................................................................................................................................468

Configure a LAG on ALPHA.......................................................................................................................................468

Contents

28 Layer 2...................................................................................................................................476

Manage the MAC Address Table.................................................................................................................................... 476

Clearing the MAC Address Table.............................................................................................................................. 476

Setting the Aging Time for Dynamic Entries............................................................................................................476

Configuring a Static MAC Address........................................................................................................................... 476

Displaying the MAC Address Table............................................................................................................................477

MAC Learning Limit...........................................................................................................................................................477

Setting the MAC Learning Limit................................................................................................................................ 477

mac learning-limit Dynamic.........................................................................................................................................478

mac learning-limit mac-address-sticky..................................................................................................................... 478

mac learning-limit station-move................................................................................................................................ 478

mac learning-limit no-station-move.......................................................................................................................... 478

Learning Limit Violation Actions.................................................................................................................................479

Setting Station Move Violation Actions....................................................................................................................479

Recovering from Learning Limit and Station Move Violations...............................................................................479

Enabling port security................................................................................................................................................. 480

NIC Teaming...................................................................................................................................................................... 480

Configure Redundant Pairs...............................................................................................................................................481

Far-End Failure Detection................................................................................................................................................ 484

FEFD State Changes.................................................................................................................................................. 484

Configuring FEFD........................................................................................................................................................485

Enabling FEFD on an Interface.................................................................................................................................. 486

Debugging FEFD..........................................................................................................................................................486

29 Link Layer Discovery Protocol (LLDP).......................................................................................488

802.1AB (LLDP) Overview...............................................................................................................................................488

Protocol Data Units.....................................................................................................................................................488

Optional TLVs.................................................................................................................................................................... 489

Management TLVs......................................................................................................................................................489

TIA-1057 (LLDP-MED) Overview...................................................................................................................................490

TIA Organizationally Specific TLVs............................................................................................................................ 491

Configure LLDP................................................................................................................................................................. 494

CONFIGURATION versus INTERFACE Configurations............................................................................................... 494

Enabling LLDP................................................................................................................................................................... 495

Disabling and Undoing LLDP......................................................................................................................................495

Enabling LLDP on Management Ports........................................................................................................................... 495

Disabling and Undoing LLDP on Management Ports..............................................................................................496

Advertising TLVs............................................................................................................................................................... 496

Storing and Viewing Unrecognized LLDP TLVs............................................................................................................ 497

Viewing the LLDP Configuration.....................................................................................................................................498

Viewing Information Advertised by Adjacent LLDP Neighbors...................................................................................498

Examples of Viewing Information Advertised by Neighbors..................................................................................498

Configuring LLDPDU Intervals......................................................................................................................................... 501

Configuring LLDP Notification Interval........................................................................................................................... 501

Configuring LLDP Notification Interval.......................................................................................................................... 502

Configuring Transmit and Receive Mode.......................................................................................................................502

Configuring the Time to Live Value................................................................................................................................ 503

Debugging LLDP............................................................................................................................................................... 503

Contents

Relevant Management Objects.......................................................................................................................................504

30 Microsoft Network Load Balancing...........................................................................................509

Configuring a Switch for NLB .........................................................................................................................................510

Enabling a Switch for Multicast NLB.........................................................................................................................510

31 Multicast Source Discovery Protocol (MSDP)............................................................................ 512

Anycast RP......................................................................................................................................................................... 513

Implementation Information..............................................................................................................................................514

Configure Multicast Source Discovery Protocol............................................................................................................514

Related Configuration Tasks.......................................................................................................................................514

Enable MSDP......................................................................................................................................................................518

Manage the Source-Active Cache.................................................................................................................................. 519

Viewing the Source-Active Cache.............................................................................................................................519

Limiting the Source-Active Cache.............................................................................................................................519

Clearing the Source-Active Cache............................................................................................................................ 519

Enabling the Rejected Source-Active Cache.......................................................................................................... 520

Accept Source-Active Messages that Fail the RFP Check.........................................................................................520

Specifying Source-Active Messages.............................................................................................................................. 522

Limiting the Source-Active Messages from a Peer......................................................................................................523

Preventing MSDP from Caching a Local Source..........................................................................................................523

Preventing MSDP from Caching a Remote Source..................................................................................................... 523

Preventing MSDP from Advertising a Local Source.....................................................................................................524

Logging Changes in Peership States..............................................................................................................................525

Terminating a Peership.....................................................................................................................................................525

Clearing Peer Statistics.................................................................................................................................................... 525

Debugging MSDP..............................................................................................................................................................526

MSDP with Anycast RP................................................................................................................................................... 526

Configuring Anycast RP................................................................................................................................................... 527

Reducing Source-Active Message Flooding............................................................................................................ 528

Specifying the RP Address Used in SA Messages..................................................................................................528

MSDP Sample Configurations.........................................................................................................................................530

32 Multicast Listener Discovery Protocol...................................................................................... 533

MLD timers........................................................................................................................................................................ 536

Reducing Host Response Burstiness........................................................................................................................536

Configuring MLD Version.................................................................................................................................................536

Clearing MLD groups........................................................................................................................................................ 537

Debugging MLD.................................................................................................................................................................537

Explicit Tracking.................................................................................................................................................................537

Reducing Leave Latency.................................................................................................................................................. 537

Displaying MLD groups table........................................................................................................................................... 537

Displaying MLD Interfaces............................................................................................................................................... 538

33 Multiple Spanning Tree Protocol (MSTP)................................................................................. 539

Spanning Tree Variations................................................................................................................................................. 540

Implementation Information.......................................................................................................................................540

Configure Multiple Spanning Tree Protocol...................................................................................................................540

Related Configuration Tasks......................................................................................................................................540

Contents

Enable Multiple Spanning Tree Globally.......................................................................................................................... 541

Adding and Removing Interfaces.....................................................................................................................................541

Creating Multiple Spanning Tree Instances....................................................................................................................541

Influencing MSTP Root Selection................................................................................................................................... 542

Interoperate with Non-Dell Bridges................................................................................................................................ 543

Changing the Region Name or Revision.........................................................................................................................543

Modifying Global Parameters.......................................................................................................................................... 543

Modifying the Interface Parameters...............................................................................................................................544

Setting STP path cost as constant................................................................................................................................ 545

Configuring an EdgePort..................................................................................................................................................545

Flush MAC Addresses after a Topology Change.......................................................................................................... 546

MSTP Sample Configurations......................................................................................................................................... 546

Debugging and Verifying MSTP Configurations........................................................................................................... 550

34 Multicast Features..................................................................................................................552

Enabling IP Multicast........................................................................................................................................................ 552

Implementation Information.............................................................................................................................................552

Multicast Policies...............................................................................................................................................................553

IPv4 Multicast Policies................................................................................................................................................553

Understanding Multicast Traceroute (mtrace).............................................................................................................559

Printing Multicast Traceroute (mtrace) Paths..............................................................................................................559

Supported Error Codes..................................................................................................................................................... 561

mtrace Scenarios............................................................................................................................................................... 561

35 Multicast Listener Discovery Protocol...................................................................................... 567

MLD timers........................................................................................................................................................................ 570

Reducing Host Response Burstiness........................................................................................................................570

Clearing MLD groups........................................................................................................................................................ 570

Debugging MLD..................................................................................................................................................................571

Explicit Tracking................................................................................................................................................................. 571

Reducing Leave Latency...................................................................................................................................................571

Displaying MLD groups table............................................................................................................................................ 571

Displaying MLD Interfaces................................................................................................................................................ 571

MLD Snooping................................................................................................................................................................... 572

Enable MLD Snooping.................................................................................................................................................572

Disable MLD Snooping................................................................................................................................................572

Configure the switch as a querier............................................................................................................................. 572

Specify port as connected to multicast router........................................................................................................573

Enable Snooping Explicit Tracking.............................................................................................................................573

Display the MLD Snooping Table...............................................................................................................................573

36 Object Tracking...................................................................................................................... 574

Object Tracking Overview................................................................................................................................................574

Track Layer 2 Interfaces.............................................................................................................................................575

Track Layer 3 Interfaces.............................................................................................................................................575

Track IPv4 and IPv6 Routes...................................................................................................................................... 575

Set Tracking Delays.....................................................................................................................................................576

VRRP Object Tracking................................................................................................................................................ 577

Object Tracking Configuration.........................................................................................................................................577

Contents

Tracking a Layer 2 Interface.......................................................................................................................................577

Tracking a Layer 3 Interface...................................................................................................................................... 578

Track an IPv4/IPv6 Route......................................................................................................................................... 579

Displaying Tracked Objects..............................................................................................................................................582

37 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................... 584

Protocol Overview............................................................................................................................................................ 584

Autonomous System (AS) Areas.............................................................................................................................. 584

Area Types................................................................................................................................................................... 585

Networks and Neighbors............................................................................................................................................586

Router Types............................................................................................................................................................... 586

Designated and Backup Designated Routers...........................................................................................................587

Link-State Advertisements (LSAs)........................................................................................................................... 587

Router Priority and Cost.............................................................................................................................................588

OSPF with Dell EMC Networking OS.............................................................................................................................589

Graceful Restart..........................................................................................................................................................589

Fast Convergence (OSPFv2, IPv4 Only).................................................................................................................590

Multi-Process OSPFv2 with VRF............................................................................................................................. 590

OSPF ACK Packing......................................................................................................................................................591

Setting OSPF Adjacency with Cisco Routers.......................................................................................................... 591

Configuration Information.................................................................................................................................................591

Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................... 592

OSPFv3 NSSA.............................................................................................................................................................603

Configuration Task List for OSPFv3 (OSPF for IPv6)...........................................................................................604

MIB Support for OSPFv3................................................................................................................................................. 615

Viewing the OSPFv3 MIB........................................................................................................................................... 615

Configuration Task List for OSPFv3 (OSPF for IPv6)..................................................................................................616

Enabling IPv6 Unicast Routing................................................................................................................................... 616

Applying cost for OSPFv3.......................................................................................................................................... 616

Assigning IPv6 Addresses on an Interface................................................................................................................617

Assigning Area ID on an Interface.............................................................................................................................. 617

Assigning OSPFv3 Process ID and Router ID Globally............................................................................................ 617

Assigning OSPFv3 Process ID and Router ID to a VRF.......................................................................................... 618

Configuring Stub Areas............................................................................................................................................... 618

Configuring Passive-Interface....................................................................................................................................618

Redistributing Routes.................................................................................................................................................. 619

Configuring a Default Route....................................................................................................................................... 619

Enabling OSPFv3 Graceful Restart........................................................................................................................... 619

OSPFv3 Authentication Using IPsec......................................................................................................................... 621

Troubleshooting OSPFv3........................................................................................................................................... 627

38 Policy-based Routing (PBR).................................................................................................... 628

Overview............................................................................................................................................................................ 628

Implementing PBR.............................................................................................................................................................629

Configuration Task List for Policy-based Routing........................................................................................................ 629

Create a Redirect List.................................................................................................................................................630

Create a Rule for a Redirect-list................................................................................................................................630

Apply a Redirect-list to an Interface using a Redirect-group................................................................................. 631

Sample Configuration....................................................................................................................................................... 634

Contents

39 PIM Sparse-Mode (PIM-SM)................................................................................................... 638

Implementation Information.............................................................................................................................................638

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

Requesting Multicast Traffic......................................................................................................................................638

Refuse Multicast Traffic.............................................................................................................................................638

Send Multicast Traffic................................................................................................................................................ 639

Configuring PIM-SM.........................................................................................................................................................639

Related Configuration Tasks......................................................................................................................................639

Enable PIM-SM................................................................................................................................................................. 639

Configuring S,G Expiry Timers......................................................................................................................................... 641

Configuring a Static Rendezvous Point......................................................................................................................... 642

Overriding Bootstrap Router Updates......................................................................................................................642

Configuring a Designated Router....................................................................................................................................643

Creating Multicast Boundaries and Domains.................................................................................................................644

Electing an RP using the BSR Mechanism.................................................................................................................... 644

40 PIM Source-Specific Mode (PIM-SSM).................................................................................... 646

Implementation Information.............................................................................................................................................646

Configure PIM-SSM......................................................................................................................................................... 646

Enabling PIM-SSM............................................................................................................................................................ 647

Use PIM-SSM with IGMP Version 2 Hosts................................................................................................................... 647

Electing an RP using the BSR Mechanism.................................................................................................................... 649

Enabling RP to Server Specific Multicast Groups.................................................................................................. 650

41 Port Monitoring.......................................................................................................................651

Important Points to Remember....................................................................................................................................... 651

Port Monitoring..................................................................................................................................................................651

Configuring Port Monitoring............................................................................................................................................654

Configuring Monitor Multicast Queue............................................................................................................................655

Enabling Flow-Based Monitoring.................................................................................................................................... 655

Remote Port Mirroring..................................................................................................................................................... 656

Remote Port Mirroring Example................................................................................................................................657

Configuring Remote Port Mirroring.......................................................................................................................... 657

Displaying Remote-Port Mirroring Configurations..................................................................................................659

Configuration procedure for Remote Port Mirroring..............................................................................................659

Encapsulated Remote Port Monitoring..........................................................................................................................663

ERPM Behavior on a typical Dell EMC Networking OS ..............................................................................................665

Port Monitoring on VLT................................................................................................................................................... 666

42 Private VLANs (PVLAN).......................................................................................................... 669

Private VLAN Concepts...................................................................................................................................................669

Using the Private VLAN Commands...............................................................................................................................670

Configuration Task List......................................................................................................................................................671

Creating PVLAN ports.................................................................................................................................................671

Creating a Primary VLAN............................................................................................................................................ 671

Creating a Community VLAN.....................................................................................................................................672

Creating an Isolated VLAN......................................................................................................................................... 673

Private VLAN Configuration Example.............................................................................................................................674

Contents

Inspecting the Private VLAN Configuration...................................................................................................................675

43 Per-VLAN Spanning Tree Plus (PVST+).................................................................................... 677

Protocol Overview.............................................................................................................................................................677

Implementation Information............................................................................................................................................. 678

Configure Per-VLAN Spanning Tree Plus...................................................................................................................... 678

Enabling PVST+.................................................................................................................................................................678

Disabling PVST+................................................................................................................................................................ 678

Influencing PVST+ Root Selection..................................................................................................................................679

Modifying Global PVST+ Parameters.............................................................................................................................680

Modifying Interface PVST+ Parameters.........................................................................................................................681

Configuring an EdgePort...................................................................................................................................................681

PVST+ in Multi-Vendor Networks.................................................................................................................................. 682

Enabling PVST+ Extend System ID................................................................................................................................ 682

PVST+ Sample Configurations........................................................................................................................................683

44 Quality of Service (QoS)......................................................................................................... 685

Implementation Information............................................................................................................................................. 687

Port-Based QoS Configurations......................................................................................................................................687

Setting dot1p Priorities for Incoming Traffic............................................................................................................687

Honoring dot1p Priorities on Ingress Traffic.............................................................................................................688

Configuring Port-Based Rate Policing......................................................................................................................688

Configuring Port-Based Rate Shaping..................................................................................................................... 688

Policy-Based QoS Configurations...................................................................................................................................689

Classify Traffic.............................................................................................................................................................689

Create a QoS Policy....................................................................................................................................................692

Create Policy Maps.....................................................................................................................................................694

DSCP Color Maps............................................................................................................................................................. 697

Creating a DSCP Color Map...................................................................................................................................... 697

Displaying DSCP Color Maps.....................................................................................................................................698

Displaying a DSCP Color Policy Configuration ....................................................................................................... 698

Enabling QoS Rate Adjustment.......................................................................................................................................699

Enabling Strict-Priority Queueing....................................................................................................................................699

Weighted Random Early Detection.................................................................................................................................699

Creating WRED Profiles............................................................................................................................................. 700

Applying a WRED Profile to Traffic...........................................................................................................................700

Displaying Default and Configured WRED Profiles.................................................................................................. 701

Displaying WRED Drop Statistics............................................................................................................................... 701

Displaying egress–queue Statistics............................................................................................................................701

Pre-Calculating Available QoS CAM Space....................................................................................................................701

Configuring Weights and ECN for WRED .....................................................................................................................702

Configuring WRED and ECN Attributes.........................................................................................................................704

Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................ 704

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.................................... 705

Classifying Incoming Packets Using ECN and Color-Marking...............................................................................705

Sample configuration to mark non-ecn packets as “yellow” with single traffic class.........................................707

Applying Layer 2 Match Criteria on a Layer 3 Interface...............................................................................................708

Applying DSCP and VLAN Match Criteria on a Service Queue.................................................................................. 708

Classifying Incoming Packets Using ECN and Color-Marking.....................................................................................709

Contents

Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................. 710

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class............................................711

Sample configuration to mark non-ecn packets as “yellow” with single traffic class................................................711

Enabling Buffer Statistics Tracking .................................................................................................................................712

45 Routing Information Protocol (RIP).......................................................................................... 715

Protocol Overview............................................................................................................................................................. 715

RIPv1.............................................................................................................................................................................. 715

RIPv2............................................................................................................................................................................. 715

Implementation Information..............................................................................................................................................715

Configuration Information................................................................................................................................................. 716

Configuration Task List................................................................................................................................................716

RIP Configuration Example......................................................................................................................................... 721

46 Remote Monitoring (RMON)....................................................................................................726

Implementation Information............................................................................................................................................. 726

Fault Recovery...................................................................................................................................................................726

Setting the RMON Alarm........................................................................................................................................... 726

Configuring an RMON Event..................................................................................................................................... 727

Configuring RMON Collection Statistics.................................................................................................................. 728

Configuring the RMON Collection History...............................................................................................................728

47 Rapid Spanning Tree Protocol (RSTP)...................................................................................... 729

Protocol Overview............................................................................................................................................................ 729

Configuring Rapid Spanning Tree....................................................................................................................................729

Important Points to Remember.......................................................................................................................................729

RSTP and VLT............................................................................................................................................................. 730

Configuring Interfaces for Layer 2 Mode.......................................................................................................................730

Enabling Rapid Spanning Tree Protocol Globally...........................................................................................................730

Adding and Removing Interfaces.................................................................................................................................... 732

Modifying Global Parameters...........................................................................................................................................732

Enabling SNMP Traps for Root Elections and Topology Changes........................................................................733

Modifying Interface Parameters......................................................................................................................................734

Enabling SNMP Traps for Root Elections and Topology Changes............................................................................. 734

Influencing RSTP Root Selection.................................................................................................................................... 734

Configuring an EdgePort.................................................................................................................................................. 734

Configuring Fast Hellos for Link State Detection..........................................................................................................735

48 Software-Defined Networking (SDN)....................................................................................... 737

49 Security................................................................................................................................. 738

AAA Accounting.................................................................................................................................................................738

Configuration Task List for AAA Accounting........................................................................................................... 738

RADIUS Accounting.................................................................................................................................................... 740

AAA Authentication...........................................................................................................................................................745

Configuration Task List for AAA Authentication..................................................................................................... 745

Obscuring Passwords and Keys.......................................................................................................................................747

AAA Authorization............................................................................................................................................................. 748

Privilege Levels Overview...........................................................................................................................................748

Contents

Configuration Task List for Privilege Levels.............................................................................................................748

RADIUS...............................................................................................................................................................................752

RADIUS Authentication.............................................................................................................................................. 752

Configuration Task List for RADIUS..........................................................................................................................753

Support for Change of Authorization and Disconnect Messages packets..........................................................756

TACACS+...........................................................................................................................................................................765

Configuration Task List for TACACS+......................................................................................................................765

TACACS+ Remote Authentication............................................................................................................................766

Command Authorization............................................................................................................................................. 767

Protection from TCP Tiny and Overlapping Fragment Attacks..................................................................................768

Enabling SCP and SSH..................................................................................................................................................... 768

Using SCP with SSH to Copy a Software Image.................................................................................................... 768

Removing the RSA Host Keys and Zeroizing Storage ...........................................................................................769

Configuring When to Re-generate an SSH Key .....................................................................................................769

Configuring the SSH Server Key Exchange Algorithm...........................................................................................770

Configuring the HMAC Algorithm for the SSH Server...........................................................................................770

Configuring the SSH Server Cipher List....................................................................................................................771

Configuring DNS in the SSH Server.......................................................................................................................... 771

Secure Shell Authentication....................................................................................................................................... 772

Troubleshooting SSH.................................................................................................................................................. 774

Telnet.................................................................................................................................................................................. 774

VTY Line and Access-Class Configuration..................................................................................................................... 774

VTY Line Local Authentication and Authorization...................................................................................................775

VTY Line Remote Authentication and Authorization.............................................................................................. 775

VTY MAC-SA Filter Support...................................................................................................................................... 775

Role-Based Access Control..............................................................................................................................................776

Overview of RBAC...................................................................................................................................................... 776

User Roles.....................................................................................................................................................................778

AAA Authentication and Authorization for Roles..................................................................................................... 781

Role Accounting...........................................................................................................................................................783

Display Information About User Roles.......................................................................................................................784

Two Factor Authentication (2FA)...................................................................................................................................785

Handling Access-Challenge Message....................................................................................................................... 785

Configuring Challenge Response Authentication for SSHv2.................................................................................785

SMS-OTP Mechanism................................................................................................................................................786

Configuring the System to Drop Certain ICMP Reply Messages............................................................................... 786

Dell EMC Networking OS Security Hardening...............................................................................................................788

Dell EMC Networking OS Image Verification...........................................................................................................788

Startup Configuration Verification............................................................................................................................ 789

Configuring the root User Password........................................................................................................................ 790

Locking Access to GRUB Interface.......................................................................................................................... 790

Enabling User Lockout for Failed Login Attempts................................................................................................... 791

50 Service Provider Bridging........................................................................................................792

VLAN Stacking...................................................................................................................................................................792

Configure VLAN Stacking...........................................................................................................................................793

Creating Access and Trunk Ports..............................................................................................................................794

Enable VLAN-Stacking for a VLAN...........................................................................................................................794

Configuring the Protocol Type Value for the Outer VLAN Tag............................................................................ 795

Configuring Dell EMC Networking OS Options for Trunk Ports........................................................................... 795

Contents

Debugging VLAN Stacking.........................................................................................................................................796

VLAN Stacking in Multi-Vendor Networks.............................................................................................................. 796

VLAN Stacking Packet Drop Precedence..................................................................................................................... 800

Enabling Drop Eligibility...............................................................................................................................................800

Honoring the Incoming DEI Value............................................................................................................................. 800

Marking Egress Packets with a DEI Value................................................................................................................ 801

Dynamic Mode CoS for VLAN Stacking......................................................................................................................... 801

Mapping C-Tag to S-Tag dot1p Values.................................................................................................................... 803

Layer 2 Protocol Tunneling.............................................................................................................................................. 803

Enabling Layer 2 Protocol Tunneling........................................................................................................................ 805

Specifying a Destination MAC Address for BPDUs................................................................................................806

Setting Rate-Limit BPDUs......................................................................................................................................... 806

Debugging Layer 2 Protocol Tunneling.................................................................................................................... 806

Provider Backbone Bridging............................................................................................................................................ 806

51 sFlow..................................................................................................................................... 808

Overview............................................................................................................................................................................ 808

Implementation Information.............................................................................................................................................808

Enabling Extended sFlow................................................................................................................................................. 809

Enabling and Disabling sFlow on an Interface................................................................................................................ 810

Enabling sFlow Max-Header Size Extended...................................................................................................................810

sFlow Show Commands.................................................................................................................................................... 811

Displaying Show sFlow Global..................................................................................................................................... 811

Displaying Show sFlow on an Interface......................................................................................................................811

Displaying Show sFlow on a Stack-unit.....................................................................................................................812

Configuring Specify Collectors.........................................................................................................................................812

Changing the Polling Intervals..........................................................................................................................................812

Back-Off Mechanism........................................................................................................................................................ 813

sFlow on LAG ports........................................................................................................................................................... 813

Enabling Extended sFlow.................................................................................................................................................. 813

Important Points to Remember..................................................................................................................................814

52 Simple Network Management Protocol (SNMP)........................................................................ 815

Protocol Overview.............................................................................................................................................................816

Implementation Information..............................................................................................................................................816

SNMPv3 Compliance With FIPS......................................................................................................................................816

Configuration Task List for SNMP...................................................................................................................................817

Important Points to Remember........................................................................................................................................817

Set up SNMP......................................................................................................................................................................817

Creating a Community.................................................................................................................................................818

Setting Up User-Based Security (SNMPv3)............................................................................................................818

Enable SNMPv3 traps................................................................................................................................................. 819

Reading Managed Object Values.....................................................................................................................................819

Writing Managed Object Values......................................................................................................................................820

Configuring Contact and Location Information using SNMP......................................................................................820

Subscribing to Managed Object Value Updates using SNMP..................................................................................... 821

Enabling a Subset of SNMP Traps.................................................................................................................................. 821

Enabling an SNMP Agent to Notify Syslog Server Failure...........................................................................................823

Copy Configuration Files Using SNMP...........................................................................................................................824

Contents

Copying a Configuration File......................................................................................................................................825

Copying Configuration Files via SNMP.....................................................................................................................826

Copying the Startup-Config Files to the Running-Config......................................................................................826

Copying the Startup-Config Files to the Server via FTP....................................................................................... 827

Copying the Startup-Config Files to the Server via TFTP.....................................................................................827

Copy a Binary File to the Startup-Configuration.....................................................................................................827

Additional MIB Objects to View Copy Statistics..................................................................................................... 828

Obtaining a Value for MIB Objects............................................................................................................................828

MIB Support to Display Reason for Last System Reboot............................................................................................829

Viewing the Reason for Last System Reboot Using SNMP.................................................................................. 829

MIB Support for Power Monitoring................................................................................................................................829

MIB Support to Display the Available Memory Size on Flash......................................................................................830

Viewing the Available Flash Memory Size................................................................................................................830

MIB Support to Display the Software Core Files Generated by the System............................................................ 830

Viewing the Software Core Files Generated by the System..................................................................................831

MIB Support to Display the Available Partitions on Flash.............................................................................................831

Viewing the Available Partitions on Flash.................................................................................................................832

MIB Support to Display Egress Queue Statistics..........................................................................................................833

MIB Support to ECMP Group Count..............................................................................................................................833

Viewing the ECMP Group Count Information......................................................................................................... 833

MIB Support for entAliasMappingTable ........................................................................................................................ 836

Viewing the entAliasMappingTable MIB...................................................................................................................836

MIB Support for LAG........................................................................................................................................................836

Viewing the LAG MIB..................................................................................................................................................837

MIB Support to Display Unrecognized LLDP TLVs...................................................................................................... 838

MIB Support to Display Reserved Unrecognized LLDP TLVs............................................................................... 838

MIB Support to Display Organizational Specific Unrecognized LLDP TLVs........................................................839

MIB Support for LLDP Notification Interval.................................................................................................................. 839

MIB support for Port Security.........................................................................................................................................840

Global MIB objects for port security.........................................................................................................................840

MIB support for interface level port security...........................................................................................................840

MIB objects for configuring MAC addresses............................................................................................................841

MIB objects for configuring MAC addresses...........................................................................................................842

Manage VLANs using SNMP...........................................................................................................................................843

Creating a VLAN..........................................................................................................................................................843

Assigning a VLAN Alias............................................................................................................................................... 843

Displaying the Ports in a VLAN..................................................................................................................................843

Add Tagged and Untagged Ports to a VLAN.......................................................................................................... 844

Managing Overload on Startup....................................................................................................................................... 845

Enabling and Disabling a Port using SNMP....................................................................................................................845

Fetch Dynamic MAC Entries using SNMP.....................................................................................................................846

Example of Deriving the Interface Index Number......................................................................................................... 847

MIB Objects for Viewing the System Image on Flash Partitions...........................................................................847

Monitoring BGP sessions via SNMP...............................................................................................................................847

Monitor Port-Channels.....................................................................................................................................................849

Enabling an SNMP Agent to Notify Syslog Server Failure.......................................................................................... 850

Troubleshooting SNMP Operation.................................................................................................................................. 851

Transceiver Monitoring..................................................................................................................................................... 851

Configuring SNMP context name...................................................................................................................................852

Contents

53 Stacking................................................................................................................................ 854

Stacking Overview............................................................................................................................................................854

Stack Management Roles.......................................................................................................................................... 854

Stack Master Election................................................................................................................................................ 855

Virtual IP....................................................................................................................................................................... 856

Failover Roles...............................................................................................................................................................857

MAC Addressing on Stacks........................................................................................................................................857

Stacking LAG............................................................................................................................................................... 858

Supported Stacking Topologies.................................................................................................................................858

High Availability on Stacks......................................................................................................................................... 858

Management Access on Stacks................................................................................................................................859

Mixed-mode Stacking.................................................................................................................................................860

Important Points to Remember....................................................................................................................................... 861

Stacking Installation Tasks................................................................................................................................................861

Create a Stack..............................................................................................................................................................861

Add Units to an Existing Stack.................................................................................................................................. 865

Split a Stack................................................................................................................................................................. 867

Stacking Configuration Tasks.......................................................................................................................................... 867

Assigning Unit Numbers to Units in an Stack.......................................................................................................... 867

Creating a Virtual Stack Unit on a Stack..................................................................................................................868

Displaying Information about a Stack....................................................................................................................... 868

Influencing Management Unit Selection on a Stack............................................................................................... 870

Managing Redundancy on a Stack.............................................................................................................................871

Resetting a Unit on a Stack........................................................................................................................................ 871

Enabling Mixed-mode Stacking.................................................................................................................................. 871

Verify a Stack Configuration............................................................................................................................................872

Displaying the Status of Stacking Ports................................................................................................................... 872

Remove Units or Front End Ports from a Stack........................................................................................................... 873

Removing a Unit from a Stack...................................................................................................................................873

Removing Front End Port Stacking.......................................................................................................................... 874

Troubleshoot a Stack........................................................................................................................................................874

Recover from Stack Link Flaps..................................................................................................................................875

Recover from a Card Problem State on a Stack.....................................................................................................875

54 Storm Control.........................................................................................................................877

Configure Storm Control.................................................................................................................................................. 877

Configuring Storm Control from INTERFACE Mode.............................................................................................. 877

Configuring Storm Control from CONFIGURATION Mode................................................................................... 878

55 Spanning Tree Protocol (STP)................................................................................................. 879

Protocol Overview............................................................................................................................................................ 879

Configure Spanning Tree..................................................................................................................................................879

Important Points to Remember.......................................................................................................................................880

Configuring Interfaces for Layer 2 Mode.......................................................................................................................880

Enabling Spanning Tree Protocol Globally...................................................................................................................... 881

Adding an Interface to the Spanning Tree Group.........................................................................................................883

Modifying Global Parameters.......................................................................................................................................... 883

Modifying Interface STP Parameters.............................................................................................................................884

Contents

Enabling PortFast..............................................................................................................................................................884

Prevent Network Disruptions with BPDU Guard....................................................................................................885

Selecting STP Root...........................................................................................................................................................887

STP Root Guard................................................................................................................................................................ 887

Root Guard Scenario...................................................................................................................................................887

Configuring Root Guard..............................................................................................................................................888

Enabling SNMP Traps for Root Elections and Topology Changes.............................................................................889

Configuring Spanning Trees as Hitless...........................................................................................................................889

STP Loop Guard................................................................................................................................................................889

Configuring Loop Guard............................................................................................................................................. 890

Displaying STP Guard Configuration............................................................................................................................... 891

56 SupportAssist........................................................................................................................ 892

Configuring SupportAssist Using a Configuration Wizard........................................................................................... 892

Configuring SupportAssist Manually...............................................................................................................................893

Configuring SupportAssist Activity.................................................................................................................................894

Configuring SupportAssist Company............................................................................................................................. 896

Configuring SupportAssist Person..................................................................................................................................896

Configuring SupportAssist Server...................................................................................................................................897

Viewing SupportAssist Configuration.............................................................................................................................898

57 System Time and Date............................................................................................................ 900

Network Time Protocol....................................................................................................................................................900

Protocol Overview....................................................................................................................................................... 901

Configure the Network Time Protocol......................................................................................................................901

Enabling NTP................................................................................................................................................................901

Configuring NTP Broadcasts.....................................................................................................................................902

Disabling NTP on an Interface................................................................................................................................... 902

Configuring a Source IP Address for NTP Packets................................................................................................ 902

Configuring NTP Authentication............................................................................................................................... 903

Configuring NTP control key password................................................................................................................... 905

Configuring the NTP Step-Threshold...................................................................................................................... 905

Dell EMC Networking OS Time and Date...................................................................................................................... 905

Configuration Task List ............................................................................................................................................. 905

Setting the Time and Date for the Switch Software Clock...................................................................................905

Setting the Timezone................................................................................................................................................. 906

Set Daylight Saving Time........................................................................................................................................... 906

Setting Daylight Saving Time Once.......................................................................................................................... 906

Setting Recurring Daylight Saving Time...................................................................................................................907

58 Tunneling...............................................................................................................................909

Configuring a Tunnel.........................................................................................................................................................909

Configuring Tunnel Keepalive Settings........................................................................................................................... 910

Configuring a Tunnel Interface.........................................................................................................................................910

Configuring Tunnel Allow-Remote Decapsulation.......................................................................................................... 911

Configuring the Tunnel Source Anylocal..........................................................................................................................911

59 Uplink Failure Detection (UFD).................................................................................................912

Feature Description........................................................................................................................................................... 912

Contents

How Uplink Failure Detection Works...............................................................................................................................913

UFD and NIC Teaming.......................................................................................................................................................914

Important Points to Remember....................................................................................................................................... 914

Configuring Uplink Failure Detection...............................................................................................................................915

Clearing a UFD-Disabled Interface.................................................................................................................................. 916

Displaying Uplink Failure Detection.................................................................................................................................. 917

Sample Configuration: Uplink Failure Detection.............................................................................................................918

60 Upgrade Procedures............................................................................................................... 920

61 Virtual LANs (VLANs)...............................................................................................................921

Default VLAN......................................................................................................................................................................921

Port-Based VLANs............................................................................................................................................................922

VLANs and Port Tagging..................................................................................................................................................922

Configuration Task List.....................................................................................................................................................923

Creating a Port-Based VLAN.....................................................................................................................................923

Assigning Interfaces to a VLAN.................................................................................................................................923

Moving Untagged Interfaces..................................................................................................................................... 924

Assigning an IP Address to a VLAN.......................................................................................................................... 925

Configuring Native VLANs...............................................................................................................................................926

Enabling Null VLAN as the Default VLAN...................................................................................................................... 926

62 Virtual Link Trunking (VLT)......................................................................................................927

Overview............................................................................................................................................................................ 927

VLT Terminology......................................................................................................................................................... 929

Layer-2 Traffic in VLT Domains.................................................................................................................................929

Interspersed VLANs....................................................................................................................................................930

VLT on Core Switches.................................................................................................................................................931

Enhanced VLT.............................................................................................................................................................. 931

Configure Virtual Link Trunking....................................................................................................................................... 932

Important Points to Remember.................................................................................................................................932

Configuration Notes....................................................................................................................................................933

Primary and Secondary VLT Peers........................................................................................................................... 936

RSTP and VLT............................................................................................................................................................. 936

VLT Bandwidth Monitoring........................................................................................................................................ 937

VLT and Stacking........................................................................................................................................................ 937

VLT and IGMP Snooping............................................................................................................................................ 937

VLT IPv6....................................................................................................................................................................... 937

VLT Port Delayed Restoration................................................................................................................................... 937

PIM-Sparse Mode Support on VLT.......................................................................................................................... 938

VLT Routing ................................................................................................................................................................ 939

Non-VLT ARP Sync.................................................................................................................................................... 942

RSTP Configuration.......................................................................................................................................................... 942

Preventing Forwarding Loops in a VLT Domain......................................................................................................942

Sample RSTP configuration....................................................................................................................................... 943

Configuring VLT...........................................................................................................................................................943

PVST+ Configuration........................................................................................................................................................952

Peer Routing Configuration Example............................................................................................................................. 953

Dell-1 Switch Configuration........................................................................................................................................953

Contents

Dell-2 Switch Configuration....................................................................................................................................... 957

R1 Configuration..........................................................................................................................................................960

Access Switch A1 Configurations and Verification.................................................................................................. 961

eVLT Configuration Example...........................................................................................................................................962

PIM-Sparse Mode Configuration Example.................................................................................................................... 964

Verifying a VLT Configuration......................................................................................................................................... 964

Additional VLT Sample Configurations........................................................................................................................... 967

Troubleshooting VLT........................................................................................................................................................ 969

Reconfiguring Stacked Switches as VLT.......................................................................................................................970

Specifying VLT Nodes in a PVLAN................................................................................................................................. 970

Configuring a VLT VLAN or LAG in a PVLAN................................................................................................................973

Creating a VLT LAG or a VLT VLAN.........................................................................................................................973

Associating the VLT LAG or VLT VLAN in a PVLAN.............................................................................................. 974

Proxy ARP Capability on VLT Peer Nodes.....................................................................................................................975

VLT Nodes as Rendezvous Points for Multicast Resiliency........................................................................................ 976

Configuring VLAN-Stack over VLT.................................................................................................................................976

IPv6 Peer Routing in VLT Domains Overview............................................................................................................... 979

Configure BFD in VLT Domain.........................................................................................................................................983

Sample BFD configuration in VLT domain................................................................................................................983

VXLAN on VLT.................................................................................................................................................................. 987

63 VLT Proxy Gateway.................................................................................................................989

Proxy Gateway in VLT Domains......................................................................................................................................989

LLDP VLT Proxy Gateway in a Square VLT Topology........................................................................................... 992

Configuring a Static VLT Proxy Gateway...................................................................................................................... 993

Configuring an LLDP VLT Proxy Gateway.....................................................................................................................993

VLT Proxy Gateway Sample Topology...........................................................................................................................993

VLT Domain Configuration.........................................................................................................................................994

Dell-1 VLT Configuration.............................................................................................................................................994

Dell-2 VLT Configuration............................................................................................................................................995

Dell-3 VLT Configuration............................................................................................................................................996

Dell-4 VLT Configuration............................................................................................................................................997

64 Virtual Extensible LAN (VXLAN)...............................................................................................998

advertise-local-mac.......................................................................................................................................................... 999

Components of VXLAN network.................................................................................................................................... 999

Functional Overview of VXLAN Gateway....................................................................................................................1000

VXLAN Frame Format.................................................................................................................................................... 1000

Limitations on VXLAN .....................................................................................................................................................1001

Configuring and Controlling VXLAN from the NSX Controller GUI.......................................................................... 1002

Configuring and Controling VXLAN from Nuage Controller GUI.............................................................................. 1006

Configuring VxLAN Gateway......................................................................................................................................... 1007

Connecting to an NVP Controller............................................................................................................................1007

Advertising VXLAN Access Ports to Controller.....................................................................................................1008

Displaying VXLAN Configurations................................................................................................................................. 1008

VXLAN Service nodes for BFD......................................................................................................................................1009

Static Virtual Extensible LAN (VXLAN).........................................................................................................................1010

Configuring Static VXLAN.........................................................................................................................................1010

Displaying Static VXLAN Configurations..................................................................................................................1011

Contents

Disabling MAC Address Learning on Static VXLAN Tunnels.................................................................................1011

Preserving 802.1 p value across VXLAN tunnels..........................................................................................................1012

VXLAN Scenario............................................................................................................................................................... 1012

Routing in and out of VXLAN tunnels............................................................................................................................1013

Configuring VXLAN RIOT.......................................................................................................................................... 1014

VLT Scenario...............................................................................................................................................................1015

NSX Controller-based VXLAN for VLT......................................................................................................................... 1016

Important Points to Remember................................................................................................................................ 1016

Configure NSX Controller-based VxLAN in VLT Setup.........................................................................................1017

Configuring BFD and UFD for VXLAN..................................................................................................................... 1017

Configuring NSX-based VxLAN on VLT Peer Devices.......................................................................................... 1017

Configuring VLT for NSX-based VxLAN................................................................................................................. 1018

Configuring and Controlling VXLAN from the NSX Controller GUI.....................................................................1022

65 Virtual Routing and Forwarding (VRF).....................................................................................1027

VRF Overview.................................................................................................................................................................. 1027

VRF Configuration Notes............................................................................................................................................... 1028

DHCP...........................................................................................................................................................................1029

VRF Configuration...........................................................................................................................................................1029

Loading VRF CAM..................................................................................................................................................... 1029

Creating a Non-Default VRF Instance.................................................................................................................... 1029

Assigning an Interface to a VRF.............................................................................................................................. 1030

Assigning a Front-end Port to a Management VRF..............................................................................................1030

View VRF Instance Information............................................................................................................................... 1030

Assigning an OSPF Process to a VRF Instance.....................................................................................................1030

Configuring VRRP on a VRF Instance......................................................................................................................1031

Configuring Management VRF................................................................................................................................. 1031

Configuring a Static Route....................................................................................................................................... 1032

Sample VRF Configuration............................................................................................................................................. 1032

Route Leaking VRFs........................................................................................................................................................1038

Dynamic Route Leaking.................................................................................................................................................. 1038

Configuring Route Leaking without Filtering Criteria............................................................................................1039

Configuring Route Leaking with Filtering................................................................................................................ 1041

66 Virtual Router Redundancy Protocol (VRRP)........................................................................... 1044

VRRP Overview............................................................................................................................................................... 1044

VRRP Benefits................................................................................................................................................................. 1045

VRRP Implementation.....................................................................................................................................................1045

VRRP Configuration........................................................................................................................................................ 1046

Configuration Task List............................................................................................................................................. 1046

Setting VRRP Initialization Delay............................................................................................................................. 1054

Sample Configurations....................................................................................................................................................1054

VRRP in a VRF Configuration.................................................................................................................................. 1058

VRRP for IPv6 Configuration................................................................................................................................... 1063

Proxy Gateway with VRRP............................................................................................................................................ 1066

67 Debugging and Diagnostics..................................................................................................... 1071

Offline Diagnostics............................................................................................................................................................1071

Important Points to Remember................................................................................................................................ 1071

Contents

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