Dell Networking Z9500 User guide

Dell Networking Configuration Guide for the

Z9500 Switch

9.8(0.0)

Notes, Cautions, and Warnings

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

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

how to avoid the problem.

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

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2015 - 05

Rev. A00

Contents

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

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

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

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

2 Configuration Fundamentals........................................................................... 35

Accessing the Command Line............................................................................................................35

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

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

The do Command...............................................................................................................................39

Undoing Commands.......................................................................................................................... 40

Obtaining Help.................................................................................................................................... 41

Entering and Editing Commands........................................................................................................41

Command History...............................................................................................................................42

Filtering show Command Outputs.....................................................................................................43

Multiple Users in Configuration Mode............................................................................................... 45

3 Getting Started....................................................................................................46

Console Access...................................................................................................................................46

Serial Console................................................................................................................................47

Default Configuration.........................................................................................................................48

Configuring a Host Name...................................................................................................................48

Accessing the System Remotely........................................................................................................ 49

Accessing the Z9500 Remotely....................................................................................................49

Configure the Management Port IP Address............................................................................... 49

Configure a Management Route..................................................................................................49

Configuring a Username and Password.......................................................................................50

Configuring the Enable Password......................................................................................................50

Manage Configuration Files................................................................................................................ 51

File Storage.....................................................................................................................................51

Copy Files to and from the System...............................................................................................51

Save the Running-Configuration..................................................................................................53

Configure the Overload Bit for a Startup Scenario...................................................................... 53

Using HTTP for File Transfers........................................................................................................53

Changes in Configuration Files.....................................................................................................54

Enabling Software Features on Devices Using a Command Option................................................ 55

View Command History......................................................................................................................56

Upgrading the Dell Networking OS....................................................................................................56

3

Using Hashes to Validate Software Images........................................................................................56

4 Switch Management.......................................................................................... 58

Configuring Privilege Levels............................................................................................................... 58

Creating a Custom Privilege Level................................................................................................58

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

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 59

Allowing Access to CONFIGURATION Mode Commands.......................................................... 59

Allowing Access to the Following Modes.................................................................................... 59

Applying a Privilege Level to a Username.....................................................................................61

Applying a Privilege Level to a Terminal Line............................................................................... 61

Configuring Logging........................................................................................................................... 61

Audit and Security Logs.................................................................................................................62

Configuring Logging Format ...................................................................................................... 64

Setting Up a Secure Connection to a Syslog Server....................................................................65

Track Login Activity.............................................................................................................................66

Restrictions for Tracking Login Activity........................................................................................66

Configuring Login Activity Tracking............................................................................................. 66

Display Login Statistics..................................................................................................................67

Limit Concurrent Login Sessions....................................................................................................... 68

Restrictions for Limiting the Number of Concurrent Sessions................................................... 68

Configuring Concurrent Session Limit.........................................................................................68

Enabling the System to Clear Existing Sessions...........................................................................68

Log Messages in the Internal Buffer...................................................................................................69

Configuration Task List for System Log Management................................................................ 69

Disabling System Logging...................................................................................................................70

Sending System Messages to a Syslog Server....................................................................................70

Configuring a UNIX System as a Syslog Server.............................................................................71

Display the Logging Buffer and the Logging Configuration..............................................................71

Changing System Logging Settings....................................................................................................72

Configuring a UNIX Logging Facility Level.........................................................................................73

Synchronizing Log Messages..............................................................................................................74

Enabling Timestamp on Syslog Messages..........................................................................................74

File Transfer Services...........................................................................................................................75

Configuration Task List for File Transfer Services........................................................................ 75

Enabling the FTP Server.................................................................................................................75

Configuring FTP Server Parameters..............................................................................................76

Configuring FTP Client Parameters.............................................................................................. 76

Terminal Lines......................................................................................................................................77

Denying and Permitting Access to a Terminal Line..................................................................... 77

Configuring Login Authentication for Terminal Lines................................................................. 78

Setting Time Out of EXEC Privilege Mode......................................................................................... 79

4

Using Telnet to Access Another Network Device..............................................................................79

Lock CONFIGURATION Mode........................................................................................................... 80

Viewing the Configuration Lock Status........................................................................................80

Recovering from a Forgotten Password on the Z9500.....................................................................81

Ignoring the Startup Configuration and Booting from the Factory-Default Configuration............ 82

Recovering from a Failed Start on the Z9500....................................................................................82

Restoring Factory-Default Settings.................................................................................................... 83

Important Points to Remember....................................................................................................83

Restoring Factory-Default Boot Environment Variables............................................................. 83

5 802.1X...................................................................................................................86

The Port-Authentication Process.......................................................................................................87

EAP over RADIUS...........................................................................................................................89

Configuring 802.1X............................................................................................................................. 89

Related Configuration Tasks.........................................................................................................89

Important Points to Remember......................................................................................................... 90

Enabling 802.1X................................................................................................................................... 91

Configuring Request Identity Re-Transmissions............................................................................... 92

Configuring a Quiet Period after a Failed Authentication........................................................... 93

Forcibly Authorizing or Unauthorizing a Port....................................................................................94

Re-Authenticating a Port.................................................................................................................... 95

Configuring Timeouts.........................................................................................................................96

Configuring Dynamic VLAN Assignment with Port Authentication.................................................. 97

Guest and Authentication-Fail VLANs................................................................................................98

Configuring a Guest VLAN............................................................................................................99

Configuring an Authentication-Fail VLAN....................................................................................99

6 Access Control Lists (ACLs).............................................................................101

IP Access Control Lists (ACLs).......................................................................................................... 102

CAM Usage.................................................................................................................................. 103

Implementing ACLs ....................................................................................................................104

IP Fragment Handling....................................................................................................................... 105

IP Fragments ACL Examples....................................................................................................... 105

Layer 4 ACL Rules Examples.......................................................................................................106

Configure a Standard IP ACL............................................................................................................ 107

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.......................................................................111

Configure Layer 2 and Layer 3 ACLs.................................................................................................112

Using ACL VLAN Groups................................................................................................................... 112

Guidelines for Configuring ACL VLAN Groups........................................................................... 113

5

Configuring an ACL VLAN Group................................................................................................113

Allocating ACL VLAN CAM...........................................................................................................114

Applying an IP ACL to an Interface................................................................................................... 115

Configure Ingress ACLs............................................................................................................... 116

Configure Egress ACLs................................................................................................................ 116

Applying Egress Layer 3 ACLs (Control-Plane)...........................................................................117

Counting ACL Hits....................................................................................................................... 118

IP Prefix Lists...................................................................................................................................... 118

Implementation Information.......................................................................................................119

Configuration Task List for Prefix Lists........................................................................................119

ACL Resequencing............................................................................................................................ 123

Resequencing an ACL or Prefix List............................................................................................123

Route Maps........................................................................................................................................125

Implementation Information.......................................................................................................125

Important Points to Remember........................................................................................................125

Configuration Task List for Route Maps..................................................................................... 125

Configuring Match Routes..........................................................................................................128

Configuring Set Conditions........................................................................................................ 129

Configure a Route Map for Route Redistribution...................................................................... 130

Configure a Route Map for Route Tagging................................................................................ 131

Continue Clause.......................................................................................................................... 131

Configuring UDF ACL........................................................................................................................132

7 Bare Metal Provisioning (BMP)....................................................................... 135

Enhanced Behavior of the stop bmp Command.............................................................................135

Removal of User-Defined String Parameter in the reload-type Command...................................135

Service Tag Information in the Option 60 String.............................................................................135

8 Bidirectional Forwarding Detection (BFD)...................................................136

How BFD Works................................................................................................................................ 136

BFD Packet Format......................................................................................................................137

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

BFD Three-Way Handshake........................................................................................................139

Session State Changes................................................................................................................140

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

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

Configure BFD for Static Routes.................................................................................................142

Configure BFD for OSPF............................................................................................................. 143

Configure BFD for OSPFv3..........................................................................................................147

Configure BFD for IS-IS.............................................................................................................. 148

Configure BFD for BGP................................................................................................................151

Configure BFD for VRRP............................................................................................................. 158

6

Configuring Protocol Liveness....................................................................................................161

9 Border Gateway Protocol IPv4 (BGPv4).......................................................162

Autonomous Systems (AS)................................................................................................................162

Sessions and Peers............................................................................................................................164

Establish a Session.......................................................................................................................165

Route Reflectors................................................................................................................................166

Communities...............................................................................................................................166

BGP Attributes................................................................................................................................... 167

Best Path Selection Criteria.........................................................................................................167

Weight..........................................................................................................................................169

Local Preference......................................................................................................................... 169

Multi-Exit Discriminators (MEDs)................................................................................................ 170

Origin............................................................................................................................................171

AS Path......................................................................................................................................... 172

Next Hop......................................................................................................................................172

Multiprotocol BGP.............................................................................................................................172

Implement BGP ................................................................................................................................ 173

Additional Path (Add-Path) Support............................................................................................173

Advertise IGP Cost as MED for Redistributed Routes.................................................................173

Ignore Router-ID for Some Best-Path Calculations.................................................................. 174

Four-Byte AS Numbers................................................................................................................174

AS4 Number Representation.......................................................................................................175

AS Number Migration.................................................................................................................. 176

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

Important Points to Remember..................................................................................................178

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

BGP Configuration............................................................................................................................ 179

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

Configuring AS4 Number Representations................................................................................184

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

Configuring BGP Fast Fail-Over................................................................................................. 188

Configuring Passive Peering.......................................................................................................190

Maintaining Existing AS Numbers During an AS Migration........................................................ 191

Allowing an AS Number to Appear in its Own AS Path..............................................................192

Enabling Neighbor Graceful Restart...........................................................................................193

Filtering on an AS-Path Attribute................................................................................................ 193

Regular Expressions as Filters..................................................................................................... 195

Redistributing Routes..................................................................................................................196

Enabling Additional Paths............................................................................................................197

Configuring IP Community Lists.................................................................................................197

Configuring an IP Extended Community List.............................................................................199

7

Filtering Routes with Community Lists......................................................................................200

Manipulating the COMMUNITY Attribute.................................................................................. 200

Changing MED Attributes........................................................................................................... 202

Changing the LOCAL_PREFERENCE Attribute.......................................................................... 203

Changing the NEXT_HOP Attribute........................................................................................... 203

Changing the WEIGHT Attribute................................................................................................204

Enabling Multipath......................................................................................................................204

Filtering BGP Routes...................................................................................................................205

Filtering BGP Routes Using Route Maps....................................................................................206

Filtering BGP Routes Using AS-PATH Information....................................................................207

Configuring BGP Route Reflectors............................................................................................ 208

Aggregating Routes.................................................................................................................... 208

Configuring BGP Confederations.............................................................................................. 209

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

Changing BGP Timers................................................................................................................. 212

Enabling BGP Neighbor Soft-Reconfiguration...........................................................................213

Route Map Continue...................................................................................................................214

Enabling MBGP Configurations........................................................................................................ 215

BGP Regular Expression Optimization............................................................................................. 215

Debugging BGP.................................................................................................................................216

Storing Last and Bad PDUs..........................................................................................................217

Capturing PDUs...........................................................................................................................218

PDU Counters..............................................................................................................................219

Sample Configurations..................................................................................................................... 219

10 Content Addressable Memory (CAM).........................................................229

CAM Allocation................................................................................................................................. 229

Test CAM Usage................................................................................................................................ 231

View CAM-ACL Settings....................................................................................................................231

View CAM Usage...............................................................................................................................232

Return to the Default CAM Configuration....................................................................................... 233

CAM Optimization............................................................................................................................ 234

Applications for CAM Profiling......................................................................................................... 234

LAG HashingLAG Hashing Based on Bidirectional Flow........................................................... 234

Unified Forwarding Table (UFT) Modes........................................................................................... 234

Configuring UFT Modes..............................................................................................................235

11 Control Plane Policing (CoPP)..................................................................... 236

Z9500 CoPP Implementation.......................................................................................................... 236

Protocol-based Control Plane Policing.....................................................................................236

Queue-based Control Plane Policing........................................................................................ 237

CoPP Example...................................................................................................................................238

8

Configure Control Plane Policing.................................................................................................... 239

Configuring CoPP for Protocols................................................................................................ 239

Examples of Configuring CoPP for Protocols............................................................................241

Configuring CoPP for CPU Queues...........................................................................................242

Examples of Configuring CoPP for CPU Queues......................................................................243

Displaying CoPP Configuration..................................................................................................243

Troubleshooting CoPP Operation................................................................................................... 247

Enabling CPU Traffic Statistics....................................................................................................247

Viewing CPU Traffic Statistics.....................................................................................................247

Troubleshooting CPU Packet Loss............................................................................................ 248

Viewing Per-Protocol CoPP Counters.......................................................................................250

Viewing Per-Queue CoPP Counters..........................................................................................253

12 Data Center Bridging (DCB)......................................................................... 254

Ethernet Enhancements in Data Center Bridging........................................................................... 254

Priority-Based Flow Control....................................................................................................... 255

Enhanced Transmission Selection............................................................................................. 256

Data Center Bridging Exchange Protocol (DCBx)......................................................................257

Data Center Bridging in a Traffic Flow.......................................................................................258

Priority-Based Flow Control.............................................................................................................258

Enhanced Transmission Selection...................................................................................................260

Data Center Bridging Exchange Protocol (DCBx)........................................................................... 261

Enabling Data Center Bridging......................................................................................................... 261

DCB Maps and its Attributes.......................................................................................................262

Data Center Bridging: Default Configuration.................................................................................. 265

Configuring Priority-Based Flow Control........................................................................................265

Configuring Lossless Queues.....................................................................................................266

Configuring PFC and ETS in a DCB Map......................................................................................... 268

PFC Configuration Notes........................................................................................................... 268

PFC Prerequisites and Restrictions.............................................................................................269

ETS Configuration Notes............................................................................................................269

ETS Prerequisites and Restrictions............................................................................................. 270

Applying a DCB Map on a Port......................................................................................................... 271

Configuring PFC without a DCB Map...............................................................................................271

Configuring Lossless QueuesExample:......................................................................................272

Priority-Based Flow Control Using Dynamic Buffer Method..........................................................274

Pause and Resume of Traffic......................................................................................................274

Buffer Sizes for Lossless or PFC Packets....................................................................................274

Behavior of Tagged Packets............................................................................................................. 275

Operations on Untagged Packets.................................................................................................... 275

Configuration Example for DSCP and PFC Priorities.......................................................................276

SNMP Support for PFC and Buffer Statistics Tracking.....................................................................277

9

Generation of PFC for a Priority for Untagged Packets...................................................................277

Performing PFC Using DSCP Bits Instead of 802.1p Bits................................................................ 278

PFC and ETS Configuration Examples............................................................................................. 279

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

Configure Enhanced Transmission Selection..................................................................................279

ETS Prerequisites and Restrictions............................................................................................. 279

Creating an ETS Priority Group...................................................................................................279

ETS Operation with DCBx...........................................................................................................281

Configuring Bandwidth Allocation for DCBx CIN......................................................................281

Hierarchical Scheduling in ETS Output Policies..............................................................................282

Applying the DCB Policies on Linecard........................................................................................... 283

Applying DCB Policies on SFM Ports............................................................................................... 283

Using PFC and ETS to Manage Converged Ethernet Traffic...........................................................284

Configure a DCBx Operation...........................................................................................................284

DCBx Operation..........................................................................................................................284

DCBx Port Roles..........................................................................................................................284

DCB Configuration Exchange.................................................................................................... 286

Configuration Source Election................................................................................................... 287

Propagation of DCB Information............................................................................................... 287

Auto-Detection and Manual Configuration of the DCBx Version............................................288

DCBx Example............................................................................................................................ 288

DCBx Prerequisites and Restrictions..........................................................................................289

Configuring DCBx.......................................................................................................................289

Verifying the DCB Configuration..................................................................................................... 293

QoS dot1p Traffic Classification and Queue Assignment...............................................................304

Configuring the Dynamic Buffer Method........................................................................................ 305

Using PFC and ETS to Manage Data Center Traffic........................................................................ 307

PFC and ETS Configuration Command Examples.................................................................... 309

13 Debugging and Diagnostics......................................................................... 310

Offline Diagnostics............................................................................................................................310

Important Points to Remember..................................................................................................310

Running Offline Diagnostics....................................................................................................... 310

Examples of Running Offline Diagnostics.................................................................................. 312

TRACE Logs.......................................................................................................................................320

Auto Save on Reload, Crash, or Rollover...................................................................................320

Last Restart Reason.......................................................................................................................... 320

Line Card Restart Causes and Reasons......................................................................................320

show hardware Commands.............................................................................................................320

Environmental Monitoring................................................................................................................322

Display Power Supply Status.......................................................................................................322

Display Fan Status....................................................................................................................... 323

10

Display Transceiver Type............................................................................................................ 324

Recognize an Over-Temperature Condition.............................................................................326

Troubleshoot an Over-Temperature Condition........................................................................ 327

Troubleshooting Packet Loss...........................................................................................................328

Displaying Drop Counters.......................................................................................................... 329

Displaying Dataplane Statistics................................................................................................... 331

Displaying Line-Card Counters.................................................................................................. 333

Accessing Application Core Dumps.................................................................................................334

Mini Core Dumps.............................................................................................................................. 335

Full Kernel Core Dumps....................................................................................................................335

Enabling TCP Dumps........................................................................................................................336

14 Dynamic Host Configuration Protocol (DHCP)........................................ 337

DHCP Packet Format and Options...................................................................................................337

Assign an IP Address using DHCP....................................................................................................339

Implementation Information............................................................................................................340

Configure the System to be a DHCP Server.................................................................................... 341

Configuring the Server for Automatic Address Allocation........................................................ 341

Specifying a Default Gateway.....................................................................................................343

Configure a Method of Hostname Resolution.......................................................................... 343

Using DNS for Address Resolution.............................................................................................343

Using NetBIOS WINS for Address Resolution............................................................................ 343

Creating Manual Binding Entries................................................................................................344

Debugging the DHCP Server......................................................................................................344

Using DHCP Clear Commands.................................................................................................. 344

Configure the System to be a Relay Agent......................................................................................345

Configure the System to be a DHCP Client.....................................................................................347

DHCP Client on a Management Interface................................................................................. 347

DHCP Client Operation with Other Features............................................................................ 348

Configure Secure DHCP...................................................................................................................348

Option 82.................................................................................................................................... 349

DHCP Snooping..........................................................................................................................349

Drop DHCP Packets on Snooped VLANs Only..........................................................................353

Dynamic ARP Inspection............................................................................................................ 353

Configuring Dynamic ARP Inspection........................................................................................355

Source Address Validation................................................................................................................356

Enabling IP Source Address Validation.......................................................................................356

DHCP MAC Source Address Validation......................................................................................356

Enabling IP+MAC Source Address Validation............................................................................ 357

Viewing the Number of SAV Dropped Packets..........................................................................357

Clearing the Number of SAV Dropped Packets.........................................................................358

11

15 Equal Cost Multi-Path (ECMP)..................................................................... 359

ECMP for Flow-Based Affinity.......................................................................................................... 359

Enabling Deterministic ECMP Next Hop....................................................................................359

Configuring the Hash Algorithm Seed....................................................................................... 359

Link Bundle Monitoring.................................................................................................................... 360

Managing ECMP Group Paths.....................................................................................................361

Creating an ECMP Group Bundle............................................................................................... 361

Modifying the ECMP Group Threshold......................................................................................362

ECMP Support in L3 Host and LPM Tables...................................................................................... 362

16 FCoE Transit.................................................................................................... 364

Fibre Channel over Ethernet............................................................................................................ 364

Ensure Robustness in a Converged Ethernet Network...................................................................364

FIP Snooping on Ethernet Bridges................................................................................................... 366

Using FIP Snooping...........................................................................................................................368

FIP Snooping Prerequisites.........................................................................................................368

Important Points to Remember................................................................................................. 369

Enabling the FCoE Transit Feature............................................................................................. 370

Enable FIP Snooping on VLANs..................................................................................................370

Configure the FC-MAP Value..................................................................................................... 370

Configure a Port for a Bridge-to-Bridge Link............................................................................370

Configure a Port for a Bridge-to-FCF Link.................................................................................371

Impact on Other Software Features........................................................................................... 371

FIP Snooping Restrictions............................................................................................................371

Configuring FIP Snooping...........................................................................................................372

FCoE Transit Configuration Example............................................................................................... 373

Displaying FIP Snooping Information...............................................................................................374

17 Enabling FIPS Cryptography.........................................................................381

Configuration Tasks.......................................................................................................................... 381

Preparing the System........................................................................................................................ 381

Enabling FIPS Mode.......................................................................................................................... 382

Generating Host-Keys...................................................................................................................... 382

Monitoring FIPS Mode Status........................................................................................................... 383

Disabling FIPS Mode......................................................................................................................... 383

18 Flex Hash..........................................................................................................385

Flex Hash Capability Overview......................................................................................................... 385

Configuring the Flex Hash Mechanism............................................................................................385

RDMA Over Converged Ethernet (RoCE) Overview........................................................................386

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces............................................................. 387

12

19 Force10 Resilient Ring Protocol (FRRP).....................................................389

Protocol Overview............................................................................................................................389

Ring Status.................................................................................................................................. 390

Multiple FRRP Rings.....................................................................................................................391

Important FRRP Points................................................................................................................ 391

Important FRRP Concepts..........................................................................................................392

Implementing FRRP.......................................................................................................................... 393

FRRP Configuration.......................................................................................................................... 393

Creating the FRRP Group........................................................................................................... 394

Configuring the Control VLAN...................................................................................................394

Configuring and Adding the Member VLANs.............................................................................395

Setting the FRRP Timers............................................................................................................. 396

Clearing the FRRP Counters....................................................................................................... 397

Viewing the FRRP Configuration................................................................................................ 397

Viewing the FRRP Information....................................................................................................397

Troubleshooting FRRP......................................................................................................................398

Configuration Checks.................................................................................................................398

Sample Configuration and Topology.............................................................................................. 398

20 GARP VLAN Registration Protocol (GVRP)............................................... 400

Important Points to Remember.......................................................................................................400

Configure GVRP................................................................................................................................401

Related Configuration Tasks.......................................................................................................401

Enabling GVRP Globally................................................................................................................... 402

Enabling GVRP on a Layer 2 Interface.............................................................................................402

Configure GVRP Registration...........................................................................................................402

Configure a GARP Timer.................................................................................................................. 403

21 Internet Group Management Protocol (IGMP).........................................405

IGMP Implementation Information..................................................................................................405

IGMP Protocol Overview..................................................................................................................405

IGMP Version 2........................................................................................................................... 405

IGMP Version 3............................................................................................................................407

Configure IGMP................................................................................................................................ 410

Related Configuration Tasks.......................................................................................................410

Viewing IGMP Enabled Interfaces.....................................................................................................411

Selecting an IGMP Version................................................................................................................411

Viewing IGMP Groups.......................................................................................................................412

Adjusting Timers................................................................................................................................412

Adjusting Query and Response Timers...................................................................................... 412

Adjusting the IGMP Querier Timeout Value...............................................................................413

13

Configuring a Static IGMP Group.....................................................................................................413

Enabling IGMP Immediate-Leave.....................................................................................................414

IGMP Snooping................................................................................................................................. 414

IGMP Snooping Implementation Information........................................................................... 414

Configuring IGMP Snooping.......................................................................................................415

Removing a Group-Port Association..........................................................................................415

Disabling Multicast Flooding.......................................................................................................416

Specifying a Port as Connected to a Multicast Router..............................................................416

Configuring the Switch as Querier.............................................................................................416

Fast Convergence after MSTP Topology Changes..........................................................................417

Designating a Multicast Router Interface......................................................................................... 417

22 Interfaces.........................................................................................................418

Basic Interface Configuration...........................................................................................................418

Advanced Interface Configuration................................................................................................... 418

Port Numbering Convention............................................................................................................418

Interface Types..................................................................................................................................419

View Basic Interface Information.....................................................................................................420

Enabling a Physical Interface............................................................................................................421

Physical Interfaces............................................................................................................................ 422

Port Pipes.................................................................................................................................... 422

Network Processing Units (NPUs)..............................................................................................423

Configuration Task List for Physical Interfaces..........................................................................423

Overview of Layer Modes........................................................................................................... 423

Configuring Layer 2 (Data Link) Mode....................................................................................... 424

Configuring Layer 2 (Interface) Mode........................................................................................424

Configuring Layer 3 (Network) Mode........................................................................................ 424

Configuring Layer 3 (Interface) Mode........................................................................................ 425

Egress Interface Selection (EIS)........................................................................................................426

Important Points to Remember................................................................................................. 426

Configuring EIS........................................................................................................................... 426

Management Interfaces....................................................................................................................427

Configuring a Dedicated Management Interface ..................................................................... 427

Configuring a Management Interface on an Ethernet Port...................................................... 428

VLAN Interfaces................................................................................................................................ 429

Loopback Interfaces.........................................................................................................................430

Null Interfaces................................................................................................................................... 431

Port Channel Interfaces.................................................................................................................... 431

Port Channel Definition and Standards......................................................................................431

Port Channel Benefits.................................................................................................................432

Port Channel Implementation....................................................................................................432

10/40 Gbps Interfaces in Port Channels....................................................................................432

14

Configuration Tasks for Port Channel Interfaces...................................................................... 433

Creating a Port Channel............................................................................................................. 433

Adding a Physical Interface to a Port Channel.......................................................................... 434

Reassigning an Interface to a New Port Channel......................................................................436

Configuring the Minimum Oper Up Links in a Port Channel....................................................436

Adding or Removing a Port Channel from a VLAN....................................................................437

Assigning an IP Address to a Port Channel................................................................................ 437

Deleting or Disabling a Port Channel.........................................................................................438

Load Balancing Through Port Channels....................................................................................438

Load-Balancing Methods........................................................................................................... 438

Changing the Hash Algorithm....................................................................................................439

Bulk Configuration........................................................................................................................... 440

Interface Range...........................................................................................................................440

Bulk Configuration Examples.....................................................................................................440

Defining Interface Range Macros.................................................................................................... 442

Define the Interface Range.........................................................................................................443

Choosing an Interface-Range Macro........................................................................................ 443

Monitoring and Maintaining Interfaces............................................................................................443

Displaying Traffic Statistics on HiGig Ports......................................................................................444

Link Bundle Monitoring.................................................................................................................... 445

Monitoring HiGig Link Bundles........................................................................................................ 445

Guidelines for Monitoring HiGig Link-Bundles ........................................................................ 446

Enabling HiGig Link-Bundle Monitoring.................................................................................... 447

Fanning out 40G Ports Dynamically................................................................................................448

Splitting QSFP Ports to SFP+ Ports.................................................................................................. 448

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port......................................................448

Link Dampening................................................................................................................................453

Important Points to Remember................................................................................................. 454

Enabling Link Dampening...........................................................................................................454

Using Ethernet Pause Frames for Flow Control.............................................................................. 456

Enabling Pause Frames...............................................................................................................456

Configure the MTU Size on an Interface......................................................................................... 457

Auto-Negotiation on Ethernet Interfaces........................................................................................458

Set Auto-Negotiation Options................................................................................................... 458

View Advanced Interface Information............................................................................................. 459

Configuring the Interface Sampling Size...................................................................................460

Dynamic Counters............................................................................................................................ 461

Clearing Interface Counters....................................................................................................... 461

23 Internet Protocol Security (IPSec).............................................................. 463

Configuring IPSec ............................................................................................................................464

15

24 IPv4 Routing................................................................................................... 465

IP Addresses......................................................................................................................................465

Implementation Information......................................................................................................465

Configuration Tasks for IP Addresses.............................................................................................. 466

Assigning IP Addresses to an Interface............................................................................................466

Configuring Static Routes.................................................................................................................467

Configure Static Routes for the Management Interface.................................................................468

Enabling Directed Broadcast............................................................................................................469

Resolution of Host Names............................................................................................................... 469

Enabling Dynamic Resolution of Host Names................................................................................ 469

Specifying the Local System Domain and a List of Domains..........................................................470

Configuring DNS with Traceroute................................................................................................... 470

ARP.....................................................................................................................................................471

Configuration Tasks for ARP.............................................................................................................472

Configuring Static ARP Entries......................................................................................................... 472

Enabling Proxy ARP...........................................................................................................................473

Clearing ARP Cache..........................................................................................................................473

ARP Learning via Gratuitous ARP......................................................................................................473

Enabling ARP Learning via Gratuitous ARP...................................................................................... 474

ARP Learning via ARP Request......................................................................................................... 474

Configuring ARP Retries................................................................................................................... 475

ICMP.................................................................................................................................................. 476

Configuration Tasks for ICMP.......................................................................................................... 476

Enabling ICMP Unreachable Messages............................................................................................476

UDP Helper....................................................................................................................................... 476

Configure UDP Helper................................................................................................................476

Important Points to Remember..................................................................................................477

Enabling UDP Helper........................................................................................................................ 477

Configuring a Broadcast Address.....................................................................................................477

Configurations Using UDP Helper................................................................................................... 478

UDP Helper with Broadcast-All Addresses...................................................................................... 478

UDP Helper with Subnet Broadcast Addresses............................................................................... 479

UDP Helper with Configured Broadcast Addresses........................................................................480

UDP Helper with No Configured Broadcast Addresses..................................................................480

Troubleshooting UDP Helper........................................................................................................... 481

25 IPv6 Routing................................................................................................... 482

Protocol Overview............................................................................................................................482

Extended Address Space............................................................................................................ 482

Stateless Autoconfiguration....................................................................................................... 482

IPv6 Headers............................................................................................................................... 483

16

IPv6 Header Fields...................................................................................................................... 484

Extension Header Fields............................................................................................................. 486

IPv6 Addressing...........................................................................................................................487

IPv6 Implementation on the Dell Networking OS.......................................................................... 488

Configuring the LPM Table for IPv6 Extended Prefixes..................................................................490

ICMPv6..............................................................................................................................................490

Path MTU Discovery..........................................................................................................................491

IPv6 Neighbor Discovery.................................................................................................................. 491

IPv6 Neighbor Discovery of MTU Packets.................................................................................492

Configuring the IPv6 Recursive DNS Server.............................................................................. 492

Secure Shell (SSH) Over an IPv6 Transport......................................................................................495

Configuration Tasks for IPv6............................................................................................................495

Adjusting Your CAM Profile........................................................................................................ 495

Assigning an IPv6 Address to an Interface.................................................................................496

Assigning a Static IPv6 Route..................................................................................................... 496

Configuring Telnet with IPv6......................................................................................................497

SNMP over IPv6...........................................................................................................................497

Displaying IPv6 Information....................................................................................................... 498

Displaying an IPv6 Configuration...............................................................................................498

Displaying IPv6 Routes............................................................................................................... 499

Displaying the Running Configuration for an Interface............................................................500

Clearing IPv6 Routes...................................................................................................................501

26 iSCSI Optimization.........................................................................................502

iSCSI Optimization Overview........................................................................................................... 502

Default iSCSI Optimization Values...................................................................................................504

iSCSI Optimization Prerequisites..................................................................................................... 504

Configuring iSCSI Optimization.......................................................................................................504

Displaying iSCSI Optimization Information..................................................................................... 507

Enable and Disable iSCSI Optimization........................................................................................... 508

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..............................................509

Monitoring iSCSI Traffic Flows.........................................................................................................509

Information Monitored in iSCSI Traffic Flows................................................................................. 509

Detection and Auto-Configuration for Dell EqualLogic Arrays...................................................... 510

Configuring Detection and Ports for Dell Compellent Arrays.........................................................511

Application of Quality of Service to iSCSI Traffic Flows...................................................................511

27 Intermediate System to Intermediate System...........................................513

IS-IS Protocol Overview....................................................................................................................513

IS-IS Addressing.................................................................................................................................513

Multi-Topology IS-IS.........................................................................................................................514

Transition Mode...........................................................................................................................515

17

Interface Support.........................................................................................................................515

Adjacencies..................................................................................................................................515

Graceful Restart.................................................................................................................................515

Timers.......................................................................................................................................... 516

Implementation Information............................................................................................................ 516

Configuration Information................................................................................................................ 517

Configuration Tasks for IS-IS...................................................................................................... 517

Configuring the Distance of a Route......................................................................................... 526

Changing the IS-Type................................................................................................................. 527

Redistributing IPv4 Routes..........................................................................................................530

Redistributing IPv6 Routes..........................................................................................................530

Configuring Authentication Passwords......................................................................................531

Setting the Overload Bit..............................................................................................................532

Debugging IS-IS.......................................................................................................................... 533

IS-IS Metric Styles............................................................................................................................. 534

Configure Metric Values................................................................................................................... 534

Maximum Values in the Routing Table.......................................................................................535

Change the IS-IS Metric Style in One Level Only...................................................................... 535

Leaks from One Level to Another...............................................................................................537

Sample Configurations..................................................................................................................... 537

28 Link Aggregation Control Protocol (LACP)...............................................540

Introduction to Dynamic LAGs and LACP....................................................................................... 540

Important Points to Remember................................................................................................. 540

LACP Modes................................................................................................................................ 541

Configuring LACP Commands................................................................................................... 541

LACP Configuration Tasks................................................................................................................542

Creating a LAG............................................................................................................................ 542

Configuring the LAG Interfaces as Dynamic..............................................................................543

Setting the LACP Long Timeout.................................................................................................543

Monitoring and Debugging LACP.............................................................................................. 544

Shared LAG State Tracking...............................................................................................................544

Configuring Shared LAG State Tracking.....................................................................................545

Important Points about Shared LAG State Tracking..................................................................546

LACP Basic Configuration Example................................................................................................. 547

Configure a LAG on ALPHA........................................................................................................ 547

29 Layer 2.............................................................................................................. 555

Manage the MAC Address Table...................................................................................................... 555

Clearing the MAC Address Table................................................................................................555

Setting the Aging Time for Dynamic Entries..............................................................................555

Configuring a Static MAC Address............................................................................................. 556

18

Displaying the MAC Address Table.............................................................................................556

MAC Learning Limit...........................................................................................................................556

Setting the MAC Learning Limit.................................................................................................. 557

mac learning-limit Dynamic....................................................................................................... 557

mac learning-limit mac-address-sticky.....................................................................................558

mac learning-limit station-move............................................................................................... 558

mac learning-limit no-station-move.........................................................................................558

Learning Limit Violation Actions.................................................................................................559

Setting Station Move Violation Actions......................................................................................559

Recovering from Learning Limit and Station Move Violations..................................................560

NIC Teaming.....................................................................................................................................560

Configure Redundant Pairs.............................................................................................................. 562

Important Points about Configuring Redundant Pairs..............................................................563

Far-End Failure Detection................................................................................................................ 565

FEFD State Changes....................................................................................................................566

Configuring FEFD........................................................................................................................ 567

Enabling FEFD on an Interface...................................................................................................568

Debugging FEFD......................................................................................................................... 569

30 Link Layer Discovery Protocol (LLDP)........................................................570

802.1AB (LLDP) Overview................................................................................................................. 570

Protocol Data Units.....................................................................................................................570

Optional TLVs.................................................................................................................................... 571

Management TLVs.......................................................................................................................572

TIA-1057 (LLDP-MED) Overview...................................................................................................... 574

TIA Organizationally Specific TLVs............................................................................................. 574

Configure LLDP.................................................................................................................................579

Related Configuration Tasks.......................................................................................................579

Important Points to Remember..................................................................................................579

LLDP Compatibility......................................................................................................................579

CONFIGURATION versus INTERFACE Configurations....................................................................579

Enabling LLDP...................................................................................................................................580

Disabling and Undoing LLDP......................................................................................................580

Enabling LLDP on Management Ports.............................................................................................580

Disabling and Undoing LLDP on Management Ports................................................................ 581

Advertising TLVs................................................................................................................................ 581

Viewing the LLDP Configuration......................................................................................................582

Viewing Information Advertised by Adjacent LLDP Agents.............................................................583

Configuring LLDPDU Intervals......................................................................................................... 584

Configuring Transmit and Receive Mode........................................................................................ 585

Configuring a Time to Live...............................................................................................................586

Debugging LLDP...............................................................................................................................586

19

Relevant Management Objects........................................................................................................ 587

31 Microsoft Network Load Balancing............................................................594

NLB Unicast and Multicast Modes................................................................................................... 594

NLB Unicast Mode Example....................................................................................................... 594

NLB Multicast Mode Example.....................................................................................................595

NLB Benefits......................................................................................................................................595

NLB Restrictions................................................................................................................................595

NLB VLAN Flooding.......................................................................................................................... 596

Configuring NLB on a Switch...........................................................................................................596

..................................................................................................................................................... 596

32 Multicast Source Discovery Protocol (MSDP)...........................................598

Protocol Overview............................................................................................................................598

Anycast RP........................................................................................................................................ 600

Implementation Information........................................................................................................... 600

Configure Multicast Source Discovery Protocol.............................................................................600

Related Configuration Tasks.......................................................................................................601

Enable MSDP.....................................................................................................................................605

Manage the Source-Active Cache...................................................................................................606

Viewing the Source-Active Cache.............................................................................................606

Limiting the Source-Active Cache............................................................................................. 607

Clearing the Source-Active Cache.............................................................................................607

Enabling the Rejected Source-Active Cache.............................................................................607

Accept Source-Active Messages that Fail the RFP Check.............................................................. 607

Specifying Source-Active Messages................................................................................................. 611

Limiting the Source-Active Messages from a Peer..........................................................................612

Preventing MSDP from Caching a Local Source............................................................................. 612

Preventing MSDP from Caching a Remote Source......................................................................... 613

Preventing MSDP from Advertising a Local Source.........................................................................614

Logging Changes in Peership States................................................................................................ 615

Terminating a Peership..................................................................................................................... 615

Clearing Peer Statistics..................................................................................................................... 616

Debugging MSDP..............................................................................................................................616

MSDP with Anycast RP...................................................................................................................... 617

Configuring Anycast RP.................................................................................................................... 618

Reducing Source-Active Message Flooding.............................................................................. 619

Specifying the RP Address Used in SA Messages.......................................................................619

MSDP Sample Configurations.......................................................................................................... 622

33 Multiple Spanning Tree Protocol (MSTP).................................................. 625

Protocol Overview............................................................................................................................625

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Dell Networking Z9500 User guide

Dell Networking Z9500 User guide

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