Dell C1048P Port Extender User guide

Dell Networking Configuration Guide

for the C9000 Series

Version 9.10(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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and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other

marks and names mentioned herein may be trademarks of their respective companies.

2016 - 04

Rev. A00

Contents

1 About this Guide......................................................................................................................37

Audience.....................................................................................................................................37

Conventions...............................................................................................................................37

Related Documents................................................................................................................. 38

2 Configuration Fundamentals............................................................................................... 39

Accessing the Command Line...............................................................................................39

CLI Modes..................................................................................................................................40

Navigating CLI Modes........................................................................................................42

The do Command....................................................................................................................45

Undoing Commands...............................................................................................................46

Obtaining Help..........................................................................................................................46

Entering and Editing Commands.......................................................................................... 47

Command History....................................................................................................................48

Filtering show Command Outputs.......................................................................................48

Multiple Users in Configuration Mode.................................................................................50

3 Getting Started........................................................................................................................ 51

Console Access.........................................................................................................................51

Serial Console......................................................................................................................52

Mounting an NFS File System................................................................................................ 53

Important Points to Remember...................................................................................... 54

Default Configuration..............................................................................................................55

Configuring a Host Name.......................................................................................................55

Accessing the System Remotely........................................................................................... 55

Accessing the System Remotely..................................................................................... 55

Configure the Management Port IP Address................................................................56

Configure a Management Route.....................................................................................56

Configuring a Username and Password........................................................................ 56

Configuring the Enable Password.........................................................................................57

Manage Configuration Files....................................................................................................57

File Storage.......................................................................................................................... 58

Copy Files to and from the System................................................................................ 58

Save the Running-Configuration.................................................................................... 59

Configure the Overload Bit for a Startup Scenario..................................................... 60

Viewing Files........................................................................................................................60

Changes in Configuration Files........................................................................................61

Viewing Command History.................................................................................................... 62

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Upgrading the Dell Networking OS......................................................................................62

4 Switch Management.............................................................................................................. 63

Configuring Privilege Levels...................................................................................................63

Creating a Custom Privilege Level..................................................................................63

Removing a Command from EXEC Mode.................................................................... 63

Moving a Command from EXEC Privilege Mode to EXEC Mode.............................64

Allowing Access to CONFIGURATION Mode Commands........................................ 64

Allowing Access to the Following Modes..................................................................... 64

Applying a Privilege Level to a Username..................................................................... 66

Applying a Privilege Level to a Terminal Line............................................................... 66

Configuring Logging................................................................................................................66

Audit and Security Logs.....................................................................................................67

Configuring Logging Format ......................................................................................... 69

Setting Up a Secure Connection to a Syslog Server...................................................69

Track Login Activity.................................................................................................................. 71

Restrictions for Tracking Login Activity..........................................................................71

Configuring Login Activity Tracking................................................................................71

Display Login Statistics...................................................................................................... 72

Limit Concurrent Login Sessions.......................................................................................... 74

Restrictions for Limiting the Number of Concurrent Sessions.................................74

Configuring Concurrent Session Limit...........................................................................74

Enabling the System to Clear Existing Sessions...........................................................74

Log Messages in the Internal Buffer..................................................................................... 75

Configuration Task List for System Log Management................................................75

Disabling System Logging.......................................................................................................76

Sending System Messages to a Syslog Server.................................................................... 76

Configuring a UNIX System as a Syslog Server.............................................................77

Display the Logging Buffer and the Logging Configuration............................................77

Changing System Logging Settings......................................................................................78

Configuring a UNIX Logging Facility Level..........................................................................79

Synchronizing Log Messages................................................................................................ 80

Enabling Timestamp on Syslog Messages..........................................................................80

File Transfer Services................................................................................................................81

Configuration Task List for File Transfer Services........................................................81

Enabling the FTP Server.....................................................................................................81

Configuring FTP Server Parameters............................................................................... 82

Configuring FTP Client Parameters................................................................................82

Terminal Lines...........................................................................................................................83

Denying and Permitting Access to a Terminal Line.................................................... 83

Configuring Login Authentication for Terminal Lines................................................84

Setting Time Out of EXEC Privilege Mode.......................................................................... 85

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Using Telnet to Access Another Network Device............................................................. 85

Lock CONFIGURATION Mode...............................................................................................86

Viewing the Configuration Lock Status......................................................................... 86

Recovering from a Forgotten Password .............................................................................87

Ignoring the Startup Configuration and Booting from the Factory-Default

Configuration............................................................................................................................88

Recovering from a Failed Start.............................................................................................. 88

Restoring Factory-Default Settings...................................................................................... 89

Important Point to Remember........................................................................................ 89

Restoring Factory-Default Boot Environment Variables............................................90

Using Hashes to Verify Software Images Before Installation.......................................... 91

Verifying System Images on C9010 Components............................................................ 93

When System Images on C9010 Components Do Not Match................................ 93

Manually Resetting the System Image on a C9010 Component.............................94

Logging in to the Virtual Console of a C9010 Component...................................... 95

Booting the C9010 from an Image on a Network Server..........................................95

Configuring C9010 Components to Boot from the RPM CP Image.......................95

5 802.1X....................................................................................................................................... 97

The Port-Authentication Process......................................................................................... 99

EAP over RADIUS...............................................................................................................101

Configuring 802.1X.................................................................................................................101

Related Configuration Tasks...........................................................................................101

Important Points to Remember.......................................................................................... 102

Enabling 802.1X...................................................................................................................... 103

Configuring dot1x Profile .....................................................................................................105

Configuring MAC addresses for a do1x Profile................................................................106

Configuring the Static MAB and MAB Profile .................................................................. 106

Configuring Critical VLAN ....................................................................................................107

Configuring Request Identity Re-Transmissions.............................................................108

Configuring a Quiet Period after a Failed Authentication............................................. 109

Forcibly Authorizing or Unauthorizing a Port...................................................................110

Re-Authenticating a Port.......................................................................................................111

Configuring Dynamic VLAN Assignment with Port Authentication............................. 112

Guest and Authentication-Fail VLANs................................................................................ 113

Configuring a Guest VLAN.............................................................................................. 114

Configuring an Authentication-Fail VLAN................................................................... 115

Configuring Timeouts...................................................................................................... 116

Multi-Host Authentication.....................................................................................................117

Configuring Multi-Host AuthenticationConfiguring Single-Host

Authentication...................................................................................................................120

Multi-Supplicant Authentication..........................................................................................121

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Configuring Multi-Supplicant AuthenticationRestricting Multi-Supplicant

Authentication................................................................................................................... 121

MAC Authentication Bypass................................................................................................. 122

MAB in Single-host and Multi-Host Mode.................................................................. 123

MAB in Multi-Supplicant Authentication Mode..........................................................123

Configuring MAC Authentication Bypass.................................................................... 124

Dynamic CoS with 802.1X.................................................................................................... 125

6 Access Control Lists (ACLs).................................................................................................127

IP Access Control Lists (ACLs)............................................................................................. 128

CAM Usage.........................................................................................................................128

User-Configurable CAM Allocation..............................................................................130

Allocating CAM for Ingress ACLs on the Port Extender........................................... 130

Allocating CAM for Egress ACLs on the Port Extender.............................................132

Implementing ACLs .........................................................................................................133

IP Fragment Handling............................................................................................................134

IP Fragments ACL Examples...........................................................................................135

Layer 4 ACL Rules Examples.......................................................................................... 135

Configure a Standard IP ACL............................................................................................... 136

Configuring a Standard IP ACL Filter............................................................................ 137

Configure an Extended IP ACL............................................................................................ 138

Configuring Filters with a Sequence Number............................................................ 138

Configuring Filters Without a Sequence Number..................................................... 140

Configure Layer 2 and Layer 3 ACLs...................................................................................141

Using ACL VLAN Groups....................................................................................................... 141

Guidelines for Configuring ACL VLAN Groups...........................................................142

Configuring an ACL VLAN Group..................................................................................142

Allocating ACL VLAN CAM..............................................................................................143

Applying an IP ACL to an Interface.....................................................................................144

Applying Ingress ACLs on the Port Extender.............................................................. 145

Applying Egress ACLs.......................................................................................................145

Applying Layer 3 Egress ACLs on Control-Plane Traffic..........................................146

Counting ACL Hits............................................................................................................ 147

IP Prefix Lists............................................................................................................................147

Implementation Information..........................................................................................148

Configuration Task List for Prefix Lists.........................................................................148

ACL Resequencing................................................................................................................. 152

Resequencing an ACL or Prefix List.............................................................................. 152

Route Maps..............................................................................................................................154

Implementation Information..........................................................................................154

Important Points to Remember.......................................................................................... 154

Configuration Task List for Route Maps.......................................................................155

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Configuring Match Routes..............................................................................................157

Configuring Set Conditions............................................................................................159

Configure a Route Map for Route Redistribution......................................................160

Configure a Route Map for Route Tagging................................................................ 160

Continue Clause................................................................................................................161

Configuring a UDF ACL......................................................................................................... 161

Hot-Lock Behavior.................................................................................................................163

7 Bidirectional Forwarding Detection (BFD).......................................................................164

How BFD Works......................................................................................................................164

BFD Packet Format...........................................................................................................166

BFD Sessions......................................................................................................................168

BFD Three-Way Handshake...........................................................................................168

Session State Changes.....................................................................................................170

Important Points to Remember.......................................................................................... 170

Configure BFD......................................................................................................................... 171

Configure BFD for Static Routes....................................................................................171

Configure BFD for OSPF..................................................................................................173

Configure BFD for OSPFv3............................................................................................. 176

Configure BFD for IS-IS................................................................................................... 177

Configure BFD for BGP................................................................................................... 180

Configure BFD for VRRP..................................................................................................187

Configuring Protocol Liveness...................................................................................... 190

8 Border Gateway Protocol IPv4 (BGPv4)...........................................................................191

Autonomous Systems (AS)....................................................................................................191

Sessions and Peers.................................................................................................................194

Establish a Session............................................................................................................194

Route Reflectors..................................................................................................................... 195

Communities.....................................................................................................................196

BGP Attributes.........................................................................................................................196

Best Path Selection Criteria............................................................................................196

Weight.................................................................................................................................198

Local Preference...............................................................................................................199

Multi-Exit Discriminators (MEDs)...................................................................................199

Origin..................................................................................................................................200

AS Path................................................................................................................................201

Next Hop............................................................................................................................ 201

Multiprotocol BGP................................................................................................................. 202

Implement BGP .....................................................................................................................202

Additional Path (Add-Path) Support.............................................................................202

Advertise IGP Cost as MED for Redistributed Routes...............................................202

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Ignore Router-ID for Some Best-Path Calculations.................................................203

Four-Byte AS Numbers................................................................................................... 203

AS4 Number Representation.........................................................................................204

AS Number Migration......................................................................................................206

BGP4 Management Information Base (MIB).............................................................. 208

Important Points to Remember....................................................................................208

Configuration Information...................................................................................................209

BGP Configuration.................................................................................................................209

Enabling BGP.....................................................................................................................210

Configuring AS4 Number Representations.................................................................214

Configuring Peer Groups................................................................................................216

Configuring BGP Fast Fail-Over.................................................................................... 218

Configuring Passive Peering.......................................................................................... 220

Maintaining Existing AS Numbers During an AS Migration...................................... 221

Allowing an AS Number to Appear in its Own AS Path............................................ 222

Enabling Neighbor Graceful Restart.............................................................................223

Filtering on an AS-Path Attribute.................................................................................. 224

Regular Expressions as Filters........................................................................................ 225

Redistributing Routes.......................................................................................................227

Enabling Additional Paths............................................................................................... 227

Configuring IP Community Lists...................................................................................228

Configuring an IP Extended Community List.............................................................229

Filtering Routes with Community Lists........................................................................230

Manipulating the COMMUNITY Attribute.................................................................... 231

Changing MED Attributes............................................................................................... 233

Changing the LOCAL_PREFERENCE Attribute.......................................................... 233

Changing the NEXT_HOP Attribute............................................................................. 234

Changing the WEIGHT Attribute...................................................................................234

Enabling Multipath........................................................................................................... 235

Filtering BGP Routes........................................................................................................235

Filtering BGP Routes Using Route Maps......................................................................237

Filtering BGP Routes Using AS-PATH Information....................................................237

Configuring BGP Route Reflectors...............................................................................238

Aggregating Routes......................................................................................................... 239

Configuring BGP Confederations.................................................................................239

Enabling Route Flap Dampening.................................................................................. 240

Changing BGP Timers.....................................................................................................243

Enabling BGP Neighbor Soft-Reconfiguration.......................................................... 243

Route Map Continue....................................................................................................... 245

Enabling MBGP Configurations...........................................................................................245

BGP Regular Expression Optimization.............................................................................. 246

Debugging BGP......................................................................................................................246

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Storing Last and Bad PDUs.............................................................................................247

Capturing PDUs................................................................................................................248

PDU Counters...................................................................................................................250

Sample Configurations......................................................................................................... 250

9 Content Addressable Memory (CAM)...............................................................................260

CAM Allocation.......................................................................................................................260

Test CAM Usage..................................................................................................................... 262

View CAM-ACL Settings....................................................................................................... 262

View CAM Usage....................................................................................................................263

Return to the Default CAM Configuration........................................................................264

CAM Optimization................................................................................................................. 265

Applications for CAM Profiling............................................................................................ 265

LAG HashingLAG Hashing Based on Bidirectional Flow..........................................265

Unified Forwarding Table (UFT) Modes.............................................................................265

Configuring UFT Modes..................................................................................................266

10 Control Plane Policing (CoPP).........................................................................................268

CoPP Implementation.......................................................................................................... 268

Protocol-based Control Plane Policing...................................................................... 268

Queue-based Control Plane Policing..........................................................................269

CoPP Example.........................................................................................................................271

Configure Control Plane Policing.......................................................................................273

Configuring CoPP for Protocols................................................................................... 273

Examples of Configuring CoPP for Protocols............................................................274

Configuring CoPP for CPU Queues............................................................................. 275

Examples of Configuring CoPP for CPU Queues......................................................276

Displaying CoPP Configuration.....................................................................................276

Troubleshooting CoPP Operation......................................................................................281

Enabling CPU Traffic Statistics.......................................................................................281

Viewing CPU Traffic Statistics........................................................................................282

Troubleshooting CPU Packet Loss...............................................................................282

Viewing Per-Protocol CoPP Counters........................................................................ 284

Viewing Per-Queue CoPP Counters........................................................................... 288

11 Data Center Bridging (DCB)............................................................................................. 290

Enabling Data Center Bridging............................................................................................290

Ethernet Enhancements in Data Center Bridging........................................................... 291

Priority-Based Flow Control.......................................................................................... 292

Enhanced Transmission Selection................................................................................294

Data Center Bridging Exchange Protocol (DCBx).....................................................295

Data Center Bridging in a Traffic Flow........................................................................ 296

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QoS dot1p Traffic Classification and Queue Assignment............................................. 296

SNMP Support for PFC and Buffer Statistics Tracking....................................................297

DCB Maps and its Attributes................................................................................................298

DCB Map: Configuration Procedure............................................................................298

Important Points to Remember.................................................................................... 299

Applying a DCB Map on a Port......................................................................................299

Configuring PFC without a DCB Map..........................................................................300

Configuring Lossless Queues........................................................................................ 301

Applying a DCB Map on a Line Card............................................................................302

Data Center Bridging: Default Configuration.................................................................. 302

Configuration Notes: PFC and ETS in a DCB Map..........................................................303

PFC Configuration Notes............................................................................................... 303

ETS Configuration Notes................................................................................................304

ETS Prerequisites and Restrictions............................................................................... 305

Priority-Group Configuration Notes............................................................................305

Configuring Priority-Based Flow Control.........................................................................306

Configuring Lossless Queues........................................................................................ 307

Configuring Enhanced Transmission Selection.............................................................. 308

Creating an ETS Priority Group.....................................................................................308

ETS Operation with DCBx.............................................................................................. 309

Configure a DCBx Operation...............................................................................................310

DCBx Operation................................................................................................................310

DCBx Port Roles............................................................................................................... 310

DCB Configuration Exchange........................................................................................312

Configuration Source Election...................................................................................... 313

Propagation of DCB Information.................................................................................. 313

Auto-Detection and Manual Configuration of the DCBx Version......................... 314

Behavior of Tagged Packets...........................................................................................314

Configuration Example for DSCP and PFC Priorities................................................ 315

DCBx Example...................................................................................................................316

DCBx Prerequisites and Restrictions.............................................................................317

Configuring DCBx.............................................................................................................317

Verifying the DCB Configuration.........................................................................................321

Performing PFC Using DSCP Bits Instead of 802.1p Bits...............................................332

PFC and ETS Configuration Examples...............................................................................333

Using PFC and ETS to Manage Data Center Traffic........................................................333

PFC and ETS Configuration Command Examples.................................................... 335

Using PFC and ETS to Manage Converged Ethernet Traffic...................................336

Hierarchical Scheduling in ETS Output Policies........................................................ 336

Priority-Based Flow Control Using Dynamic Buffer Method........................................337

Pause and Resume of Traffic......................................................................................... 337

Buffer Sizes for Lossless or PFC Packets..................................................................... 337

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Configuring the Dynamic Buffer Method......................................................................... 338

12 Debugging and Diagnostics.............................................................................................340

Offline Diagnostics................................................................................................................ 340

Running Port Extender Offline Diagnostics on the Switch......................................341

Running Offline Diagnostics on a Standalone Switch..............................................348

TRACE Logs..............................................................................................................................371

Auto Save on Reload, Crash, or Rollover.....................................................................371

Uploading Trace Logs......................................................................................................371

Last Restart Reason................................................................................................................372

show hardware Commands.................................................................................................372

Environmental Monitoring....................................................................................................375

Displaying Port Extender Environment Information ................................................375

Display Power Supply Status..........................................................................................376

Display Fan Status.............................................................................................................377

Display Transceiver Type.................................................................................................377

Recognize an Over-Temperature Condition............................................................. 379

Troubleshoot an Over-Temperature Condition....................................................... 380

Troubleshooting Packet Loss.............................................................................................. 382

Displaying Drop Counters.............................................................................................. 383

Displaying Dataplane Statistics......................................................................................384

Displaying Line-Card Counters.....................................................................................386

Accessing Application Core Dumps...................................................................................387

Mini Core Dumps...................................................................................................................388

Full Kernel Core Dumps....................................................................................................... 388

Enabling TCP Dumps............................................................................................................ 389

Accessing Port Extender Core and Mini Core Dumps...................................................390

13 Dynamic Host Configuration Protocol (DHCP)............................................................ 391

DHCP Packet Format and Options.....................................................................................391

Assign an IP Address using DHCP...................................................................................... 393

Implementation Information...............................................................................................394

Configure the System to be a DHCP Server.....................................................................395

Configuring the Server for Automatic Address Allocation...................................... 396

Specifying a Default Gateway........................................................................................397

Configure a Method of Hostname Resolution...........................................................397

Using DNS for Address Resolution...............................................................................398

Using NetBIOS WINS for Address Resolution............................................................ 398

Creating Manual Binding Entries...................................................................................398

Debugging the DHCP Server.........................................................................................399

Using DHCP Clear Commands..................................................................................... 399

Configure the System to be a Relay Agent.......................................................................399

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Configure the System to be a DHCP Client..................................................................... 401

DHCP Client on a Management Interface.................................................................. 401

DHCP Client Operation with Other Features.............................................................402

Configure Secure DHCP...................................................................................................... 403

Option 82...........................................................................................................................403

DHCP Snooping............................................................................................................... 404

Drop DHCP Packets on Snooped VLANs Only..........................................................406

Dynamic ARP Inspection................................................................................................ 407

Configuring Dynamic ARP Inspection.........................................................................408

Source Address Validation................................................................................................... 409

Enabling IP Source Address Validation........................................................................409

DHCP MAC Source Address Validation....................................................................... 410

Enabling IP+MAC Source Address Validation.............................................................410

Viewing the Number of SAV Dropped Packets...........................................................411

Clearing the Number of SAV Dropped Packets......................................................... 412

14 Equal Cost Multi-Path (ECMP)......................................................................................... 413

ECMP for Flow-Based Affinity..............................................................................................413

Enabling Deterministic ECMP Next Hop......................................................................413

Configuring the Hash Algorithm Seed......................................................................... 413

Link Bundle Monitoring...................................................................................................414

Managing ECMP Group Paths............................................................................................. 415

Creating an ECMP Group Bundle....................................................................................... 415

Modifying the ECMP Group Threshold..............................................................................416

BGP Multipath Operation with Link Bankwidth............................................................... 416

Dynamic Re-calculation of Link Bankwidth..................................................................... 419

Weighted ECMP for Static Routes...................................................................................... 419

ECMP Support in L3 Host and LPM Tables.......................................................................420

15 FCoE Transit.........................................................................................................................421

Fibre Channel over Ethernet................................................................................................ 421

Ensure Robustness in a Converged Ethernet Network..................................................421

FIP Snooping on Ethernet Bridges..................................................................................... 423

FIP Snooping in a Switch Stack...........................................................................................426

Using FIP Snooping............................................................................................................... 426

FIP Snooping Prerequisites............................................................................................ 426

Important Points to Remember.................................................................................... 427

Enabling the FCoE Transit Feature............................................................................... 427

Enable FIP Snooping on VLANs.....................................................................................428

Configure the FC-MAP Value........................................................................................ 428

Configure a Port for a Bridge-to-Bridge Link............................................................ 428

Configure a Port for a Bridge-to-FCF Link.................................................................428

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Impact on Other Software Features.............................................................................429

FIP Snooping Restrictions.............................................................................................. 429

Configuring FIP Snooping....................................................................................................430

Displaying FIP Snooping Information.................................................................................431

FCoE Transit Configuration Example.................................................................................437

16 FIPS Cryptography.............................................................................................................439

Configuration Tasks...............................................................................................................439

Preparing the System............................................................................................................440

Enabling FIPS Mode...............................................................................................................440

Generating Host-Keys...........................................................................................................441

Monitoring FIPS Mode Status...............................................................................................441

Disabling FIPS Mode..............................................................................................................442

17 Flex Hash and Optimized Boot-Up................................................................................. 443

Flex Hash Capability Overview............................................................................................443

Configuring the Flex Hash Mechanism.............................................................................444

LACP Fast Switchover........................................................................................................... 444

Configuring LACP Fast Switchover.................................................................................... 445

LACP......................................................................................................................................... 445

LACP Fast Switchover......................................................................................................445

RDMA Over Converged Ethernet (RoCE) Overview....................................................... 445

Sample Configurations......................................................................................................... 447

..............................................................................................................................................447

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...........................................450

18 Force10 Resilient Ring Protocol (FRRP).........................................................................452

Protocol Overview.................................................................................................................452

Ring Status......................................................................................................................... 453

Multiple FRRP Rings.........................................................................................................454

Important FRRP Points....................................................................................................454

Implementing FRRP......................................................................................................... 455

Important FRRP Concepts..............................................................................................455

FRRP Configuration............................................................................................................... 456

Creating the FRRP Group............................................................................................... 457

Configuring the Control VLAN...................................................................................... 457

Configuring and Adding the Member VLANs.............................................................458

Setting the FRRP Timers................................................................................................. 459

Clearing the FRRP Counters..........................................................................................460

Viewing the FRRP Configuration.................................................................................. 460

Viewing the FRRP Information......................................................................................460

Troubleshooting FRRP.......................................................................................................... 461

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Configuration Checks......................................................................................................461

Sample Configuration and Topology.................................................................................461

19 GARP VLAN Registration Protocol (GVRP)....................................................................463

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

Configure GVRP..................................................................................................................... 464

Related Configuration Tasks..........................................................................................465

Enabling GVRP Globally........................................................................................................465

Enabling GVRP on a Layer 2 Interface...............................................................................465

Configure GVRP Registration..............................................................................................466

Configure a GARP Timer...................................................................................................... 466

20 High Availability (HA)........................................................................................................ 468

High Availability on Chassis................................................................................................. 468

High Availability in a PE Stack..............................................................................................469

Online Insertion and Removal............................................................................................ 469

RPM Online Insertion...................................................................................................... 469

Line Card Online Insertion............................................................................................. 469

Pre-configuring a Slot for a Line-Card Type..............................................................470

Replacing a Line Card..................................................................................................... 470

Hitless Behavior.......................................................................................................................471

Graceful Restart......................................................................................................................472

Software Resiliency................................................................................................................472

System Health Monitoring..............................................................................................472

Failure and Event Logging.............................................................................................. 472

Trace Log........................................................................................................................... 472

Core Dumps...................................................................................................................... 473

System Log........................................................................................................................ 473

Control Plane Redundancy..................................................................................................473

Control-Plane Failover....................................................................................................474

RPM Synchronization...................................................................................................... 475

Forcing an RPM Failover................................................................................................. 475

Specifying an Auto-Failover Limit.................................................................................475

Disabling Auto-Reboot................................................................................................... 476

21 Internet Group Management Protocol (IGMP)............................................................. 477

IGMP Implementation Information.................................................................................... 477

IGMP Protocol Overview......................................................................................................478

IGMP Version 2................................................................................................................. 478

IGMP Version 3................................................................................................................. 479

Configure IGMP......................................................................................................................483

Related Configuration Tasks..........................................................................................483

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Viewing IGMP Enabled Interfaces...................................................................................... 483

Selecting an IGMP Version...................................................................................................484

Viewing IGMP Groups...........................................................................................................484

Enabling IGMP Immediate-Leave.......................................................................................485

IGMP Snooping...................................................................................................................... 485

IGMP Snooping Implementation Information........................................................... 485

Configuring IGMP Snooping......................................................................................... 486

Removing a Group-Port Association...........................................................................486

Disabling Multicast Flooding..........................................................................................487

Specifying a Port as Connected to a Multicast Router............................................ 487

Configuring the Switch as Querier...............................................................................487

Fast Convergence after MSTP Topology Changes.........................................................488

Designating a Multicast Router Interface......................................................................... 489

22 Interfaces.............................................................................................................................490

Basic Interface Configuration............................................................................................. 490

Advanced Interface Configuration.....................................................................................490

Port Numbering......................................................................................................................492

Interface Types....................................................................................................................... 495

View Basic Interface Information....................................................................................... 495

Resetting an Interface to its Factory Default State......................................................... 502

Enabling a Physical Interface...............................................................................................503

Physical Interfaces................................................................................................................. 503

Port Pipes...........................................................................................................................503

Setting the Speed and Duplex Mode of Ethernet Interfaces.................................. 504

Configuration Task List for Physical Interfaces..........................................................505

Overview of Layer Modes...............................................................................................505

Configuring Layer 2 (Data Link) Mode.........................................................................506

Configuring Layer 2 (Interface) Mode..........................................................................506

Configuring Layer 3 (Network) Mode.......................................................................... 506

Configuring Layer 3 (Interface) Mode..........................................................................507

Egress Interface Selection (EIS)...........................................................................................508

Important Points to Remember....................................................................................508

Configuring EIS.................................................................................................................508

Management Interfaces........................................................................................................509

Configuring a Dedicated Management Interface .................................................... 509

Configuring a Management Interface on an Ethernet Port.....................................510

Port Extender Interfaces........................................................................................................511

VLAN Interfaces.......................................................................................................................512

Loopback Interfaces.............................................................................................................. 513

Null Interfaces......................................................................................................................... 513

Port Channel Interfaces........................................................................................................ 514

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Port Channel Definition and Standards....................................................................... 514

Port Channel Benefits......................................................................................................514

Port Channel Implementation....................................................................................... 514

10/40 Gbps Interfaces in Port Channels......................................................................515

Configuration Tasks for Port Channel Interfaces...................................................... 515

Creating a Port Channel..................................................................................................516

Adding a Physical Interface to a Port Channel...........................................................516

Reassigning an Interface to a New Port Channel......................................................518

Configuring the Minimum Oper Up Links in a Port Channel.................................. 519

Adding or Removing a Port Channel from a VLAN...................................................520

Assigning an IP Address to a Port Channel.................................................................520

Deleting or Disabling a Port Channel...........................................................................521

Load Balancing Through Port Channels......................................................................521

Changing the Hash Algorithm....................................................................................... 521

Bulk Configuration.................................................................................................................522

Interface Range.................................................................................................................522

Bulk Configuration Examples.........................................................................................523

Defining Interface Range Macros....................................................................................... 524

Define the Interface Range............................................................................................ 525

Choosing an Interface-Range Macro.......................................................................... 525

Monitoring and Maintaining Interfaces..............................................................................525

Maintenance Using TDR................................................................................................. 526

Displaying Traffic Statistics on HiGig Ports.......................................................................527

Link Bundle Monitoring.........................................................................................................528

Monitoring HiGig Link Bundles........................................................................................... 529

Guidelines for Monitoring HiGig Link-Bundles .........................................................530

Enabling HiGig Link-Bundle Monitoring......................................................................531

Non Dell-Qualified Transceivers.........................................................................................531

Splitting QSFP Ports to SFP+ Ports.....................................................................................532

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port.................................... 533

Configuring wavelength for 10–Gigabit SFP+ optics.................................................... 534

Link Dampening......................................................................................................................535

Important Points to Remember.................................................................................... 535

Enabling Link Dampening...............................................................................................535

Using Ethernet Pause Frames for Flow Control...............................................................537

Threshold Settings........................................................................................................... 538

Enabling Pause Frames................................................................................................... 539

Configure the MTU Size on an Interface.......................................................................... 539

Auto-Negotiation on Ethernet Interfaces.........................................................................540

Set Auto-Negotiation Options.......................................................................................541

View Advanced Interface Information............................................................................... 541

Configuring the Interface Sampling Size.................................................................... 542

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Dynamic Counters.................................................................................................................543

Clearing Interface Counters.......................................................................................... 544

23 Internet Protocol Security (IPSec).................................................................................. 545

Configuring IPSec .................................................................................................................546

24 IPv4 Routing....................................................................................................................... 547

IP Addresses............................................................................................................................ 547

Implementation Information......................................................................................... 548

Configuration Tasks for IP Addresses................................................................................548

Assigning IP Addresses to an Interface..............................................................................548

Configuring Static Routes.................................................................................................... 549

Configure Static Routes for the Management Interface................................................551

Enabling Directed Broadcast................................................................................................551

Resolution of Host Names....................................................................................................551

Enabling Dynamic Resolution of Host Names.................................................................552

Specifying the Local System Domain and a List of Domains........................................552

Configuring DNS with Traceroute......................................................................................553

ARP............................................................................................................................................ 554

Configuration Tasks for ARP..........................................................................................554

Configuring Static ARP Entries...................................................................................... 554

Configuring ARP Inspection Trust................................................................................ 555

Configuring ARP Timeout...............................................................................................556

Enabling Proxy ARP..........................................................................................................556

Clearing ARP Cache.........................................................................................................556

ARP Learning via Gratuitous ARP.................................................................................. 557

Enabling ARP Learning via Gratuitous ARP................................................................. 557

ARP Learning via ARP Request...................................................................................... 558

Configuring ARP Retries..................................................................................................559

ICMP..........................................................................................................................................559

Configuration Tasks for ICMP........................................................................................559

Enabling ICMP Unreachable Messages....................................................................... 560

25 IPv6 Routing........................................................................................................................561

Protocol Overview................................................................................................................. 561

Extended Address Space.................................................................................................562

Stateless Autoconfiguration...........................................................................................562

IPv6 Headers..................................................................................................................... 563

IPv6 Header Fields............................................................................................................563

Extension Header Fields..................................................................................................565

IPv6 Addressing................................................................................................................ 566

IPv6 Implementation on the Dell Networking OS...........................................................567

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Configuring the LPM Table for IPv6 Extended Prefixes.................................................569

ICMPv6..................................................................................................................................... 570

Path MTU Discovery.............................................................................................................. 570

IPv6 Neighbor Discovery.......................................................................................................571

IPv6 Neighbor Discovery of MTU Packets.................................................................. 572

Configuring the IPv6 Recursive DNS Server............................................................... 572

Secure Shell (SSH) Over an IPv6 Transport.......................................................................574

Configuration Tasks for IPv6................................................................................................575

Adjusting Your CAM Profile............................................................................................ 575

Assigning an IPv6 Address to an Interface.................................................................. 576

Assigning a Static IPv6 Route.........................................................................................576

Configuring Telnet with IPv6......................................................................................... 577

SNMP over IPv6.................................................................................................................577

Displaying IPv6 Information...........................................................................................578

Displaying an IPv6 Configuration..................................................................................578

Displaying IPv6 Routes....................................................................................................579

Displaying the Running Configuration for an Interface...........................................580

Clearing IPv6 Routes........................................................................................................581

26 Intermediate System to Intermediate System..............................................................582

IS-IS Protocol Overview....................................................................................................... 582

IS-IS Addressing......................................................................................................................583

Multi-Topology IS-IS.............................................................................................................583

Transition Mode................................................................................................................584

Interface Support............................................................................................................. 584

Adjacencies........................................................................................................................584

Graceful Restart......................................................................................................................585

Timers................................................................................................................................. 585

Implementation Information............................................................................................... 585

Configuration Information...................................................................................................586

Configuration Tasks for IS-IS.........................................................................................587

Configuring the Distance of a Route........................................................................... 596

Changing the IS-Type..................................................................................................... 596

Redistributing IPv4 Routes............................................................................................. 599

Redistributing IPv6 Routes.............................................................................................600

Configuring Authentication Passwords.......................................................................601

Setting the Overload Bit..................................................................................................601

Debugging IS-IS............................................................................................................... 602

IS-IS Metric Styles.................................................................................................................. 603

Configure Metric Values.......................................................................................................603

Maximum Values in the Routing Table........................................................................604

Change the IS-IS Metric Style in One Level Only..................................................... 604

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Leaks from One Level to Another................................................................................ 606

Sample Configurations......................................................................................................... 607

27 iSCSI Optimization.............................................................................................................610

iSCSI Optimization Overview...............................................................................................610

Default iSCSI Optimization Values......................................................................................613

iSCSI Optimization Prerequisites.........................................................................................613

Configuring iSCSI Optimization.......................................................................................... 613

Displaying iSCSI Optimization Information...................................................................... 616

Enable and Disable iSCSI Optimization..............................................................................617

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.......................... 618

Monitoring iSCSI Traffic Flows............................................................................................ 618

Information Monitored in iSCSI Traffic Flows.................................................................. 619

Detection and Auto-Configuration for Dell EqualLogic Arrays................................... 620

Configuring Detection and Ports for Dell Compellent Arrays..................................... 620

Application of Quality of Service to iSCSI Traffic Flows.................................................621

28 Link Aggregation Control Protocol (LACP)...................................................................622

Introduction to Dynamic LAGs and LACP........................................................................ 622

Important Points to Remember.................................................................................... 622

LACP Modes...................................................................................................................... 623

Configuring LACP Commands......................................................................................623

LACP Configuration Tasks................................................................................................... 624

Creating a LAG..................................................................................................................624

Configuring the LAG Interfaces as Dynamic.............................................................. 625

Setting the LACP Long Timeout....................................................................................625

Monitoring and Debugging LACP.................................................................................626

Shared LAG State Tracking...................................................................................................627

Configuring Shared LAG State Tracking......................................................................627

Important Points about Shared LAG State Tracking.................................................629

LACP Basic Configuration Example................................................................................... 629

Configure a LAG on ALPHA........................................................................................... 630

29 Layer 2..................................................................................................................................638

Manage the MAC Address Table.........................................................................................638

Clearing the MAC Address Table.................................................................................. 638

Setting the Aging Time for Dynamic Entries.............................................................. 638

Configuring a Static MAC Address................................................................................639

Displaying the MAC Address Table...............................................................................639

MAC Learning Limit............................................................................................................... 639

Setting the MAC Learning Limit.................................................................................... 640

mac learning-limit Dynamic..........................................................................................640

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mac learning-limit mac-address-sticky...................................................................... 641

mac learning-limit station-move..................................................................................641

mac learning-limit no-station-move........................................................................... 641

Learning Limit Violation Actions................................................................................... 642

Setting Station Move Violation Actions....................................................................... 642

Recovering from Learning Limit and Station Move Violations...............................643

Disabling MAC Address Learning on the System...................................................... 643

NIC Teaming...........................................................................................................................644

Configure Redundant Pairs..................................................................................................645

Important Points about Configuring Redundant Pairs.............................................647

Far-End Failure Detection....................................................................................................649

FEFD State Changes........................................................................................................ 650

Configuring FEFD..............................................................................................................651

Enabling FEFD on an Interface...................................................................................... 652

Debugging FEFD...............................................................................................................653

30 Link Layer Discovery Protocol (LLDP)............................................................................654

802.1AB (LLDP) Overview.....................................................................................................654

Protocol Data Units......................................................................................................... 654

Optional TLVs..........................................................................................................................655

Management TLVs........................................................................................................... 656

TIA-1057 (LLDP-MED) Overview........................................................................................ 658

TIA Organizationally Specific TLVs...............................................................................658

Configure LLDP...................................................................................................................... 663

Related Configuration Tasks..........................................................................................663

Important Points to Remember.................................................................................... 663

LLDP Compatibility.......................................................................................................... 663

CONFIGURATION versus INTERFACE Configurations.................................................. 663

Enabling LLDP.........................................................................................................................664

Disabling and Undoing LLDP.........................................................................................665

Enabling LLDP on Management Ports...............................................................................665

Disabling and Undoing LLDP on Management Ports...............................................665

Advertising TLVs.....................................................................................................................666

Viewing the LLDP Configuration........................................................................................ 667

Viewing Information Advertised by Adjacent LLDP Agents.......................................... 668

Configuring LLDPDU Intervals............................................................................................ 669

Configuring Transmit and Receive Mode......................................................................... 670

Configuring a Time to Live................................................................................................... 671

Debugging LLDP.....................................................................................................................671

Relevant Management Objects...........................................................................................672

31 Multicast Source Discovery Protocol (MSDP)...............................................................678

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