Dell S4048T Configuration Manual

Dell Configuration Guide for the
S4048T–ON System

9.10(0.1)

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.

© 2016 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property
laws. Dell 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 - 05

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........................................................................................................41

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

Undoing Commands............................................................................................................... 45

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

Entering and Editing Commands..........................................................................................46

Command History....................................................................................................................47

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

Example of the grep Keyword......................................................................................... 48

Multiple Users in Configuration Mode.................................................................................49

3 Getting Started........................................................................................................................50

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

Serial Console...................................................................................................................... 51

Accessing the CLI Interface and Running Scripts Using SSH..........................................52

Entering CLI commands Using an SSH Connection...................................................52

Executing Local CLI Scripts Using an SSH Connection..............................................53

Default Configuration..............................................................................................................53

Configuring a Host Name.......................................................................................................53

Accessing the System Remotely........................................................................................... 54

Accessing the System Remotely..................................................................................... 54

Configure the Management Port IP Address................................................................54

Configure a Management Route.....................................................................................55

Configuring a Username and Password........................................................................ 55

Configuring the Enable Password.........................................................................................55

Configuration File Management........................................................................................... 56

Copy Files to and from the System................................................................................ 56

Mounting an NFS File System...........................................................................................57

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

Configure the Overload Bit for a Startup Scenario..................................................... 59

Viewing Files........................................................................................................................ 59

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Compressing Configuration Files....................................................................................61

Managing the File System.......................................................................................................64

Enabling Software Features on Devices Using a Command Option............................ 64

View Command History..........................................................................................................65

Upgrading Dell Networking OS.............................................................................................65

Verify Software Images Before Installation.........................................................................66

Using HTTP for File Transfers.................................................................................................67

4 Management........................................................................................................................... 69

Configuring Privilege Levels...................................................................................................69

Creating a Custom Privilege Level..................................................................................70

Removing a Command from EXEC Mode.................................................................... 70

Moving a Command from EXEC Privilege Mode to EXEC Mode............................. 70

Allowing Access to CONFIGURATION Mode Commands........................................ 70

Allowing Access to Different Modes............................................................................... 71

Applying a Privilege Level to a Username......................................................................73

Applying a Privilege Level to a Terminal Line................................................................73

Configuring Logging................................................................................................................73

Audit and Security Logs.....................................................................................................74

Configuring Logging Format ..........................................................................................75

Display the Logging Buffer and the Logging Configuration......................................76

Setting Up a Secure Connection to a Syslog Server................................................... 77

Sending System Messages to a Syslog Server.............................................................. 78

Track Login Activity..................................................................................................................78

Restrictions for Tracking Login Activity......................................................................... 79

Configuring Login Activity Tracking............................................................................... 79

Display Login Statistics...................................................................................................... 79

Limit Concurrent Login Sessions...........................................................................................81

Restrictions for Limiting the Number of Concurrent Sessions................................. 81

Configuring Concurrent Session Limit.......................................................................... 82

Enabling the System to Clear Existing Sessions...........................................................82

Log Messages in the Internal Buffer.....................................................................................83

Configuration Task List for System Log Management............................................... 83

Disabling System Logging...................................................................................................... 83

Sending System Messages to a Syslog Server....................................................................84

Configuring a UNIX System as a Syslog Server............................................................84

Changing System Logging Settings..................................................................................... 84

Display the Logging Buffer and the Logging Configuration........................................... 85

Configuring a UNIX Logging Facility Level......................................................................... 86

Synchronizing Log Messages.................................................................................................87

Enabling Timestamp on Syslog Messages.......................................................................... 88

File Transfer Services...............................................................................................................88

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Configuration Task List for File Transfer Services........................................................89

Enabling the FTP Server.................................................................................................... 89

Configuring FTP Server Parameters............................................................................... 89

Configuring FTP Client Parameters................................................................................90

Terminal Lines...........................................................................................................................90

Denying and Permitting Access to a Terminal Line.....................................................91

Configuring Login Authentication for Terminal Lines................................................ 92

Setting Timeout for EXEC Privilege Mode...........................................................................93

Using Telnet to get to Another Network Device...............................................................94

Lock CONFIGURATION Mode...............................................................................................94

Viewing the Configuration Lock Status......................................................................... 95

Restoring the Factory Default Settings................................................................................ 95

Important Points to Remember...................................................................................... 96

Restoring Factory Default Environment Variables.......................................................96

5 802.1ag..................................................................................................................................... 99

Ethernet CFM............................................................................................................................ 99

Maintenance Domains.......................................................................................................... 100

Maintenance Points................................................................................................................101

Maintenance End Points........................................................................................................101

Implementation Information............................................................................................... 102

Configuring the CFM............................................................................................................. 102

Related Configuration Tasks.......................................................................................... 103

Enable Ethernet CFM.............................................................................................................103

Creating a Maintenance Domain........................................................................................ 103

Creating a Maintenance Association..................................................................................104

Create Maintenance Points..................................................................................................104

Creating a Maintenance End Point...............................................................................104

Creating a Maintenance Intermediate Point...............................................................105

Displaying the MP Databases.........................................................................................105

Continuity Check Messages.................................................................................................106

Enabling CCM....................................................................................................................107

Enabling Cross-Checking...............................................................................................108

Sending Loopback Messages and Responses..................................................................108

Sending Linktrace Messages and Responses................................................................... 109

Caching Link Trace...........................................................................................................110

Enabling CFM SNMP Traps....................................................................................................111

Displaying Ethernet CFM Statistics......................................................................................112

6 802.1X..................................................................................................................................... 114

Port-Authentication Process................................................................................................116

EAP over RADIUS...............................................................................................................118

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5

Configuring 802.1X.................................................................................................................118

Related Configuration Tasks...........................................................................................118

Important Points to Remember...........................................................................................119

Enabling 802.1X...................................................................................................................... 120

Configuring Request Identity Re-Transmissions............................................................. 122

Configuring a Quiet Period after a Failed Authentication........................................122

Forcibly Authorizing or Unauthorizing a Port...................................................................123

Re-Authenticating a Port...................................................................................................... 124

Configuring Timeouts............................................................................................................125

Configuring Dynamic VLAN Assignment with Port Authentication.............................126

Guest and Authentication-Fail VLANs................................................................................127

Configuring a Guest VLAN..............................................................................................128

Configuring an Authentication-Fail VLAN...................................................................128

7 Access Control List (ACL) VLAN Groups and Content Addressable Memory

(CAM)..........................................................................................................................................130

Optimizing CAM Utilization During the Attachment of ACLs to VLANs.....................130

Guidelines for Configuring ACL VLAN Groups................................................................. 131

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.. 132

Configuring ACL VLAN Groups......................................................................................132

Configuring FP Blocks for VLAN Parameters..............................................................133

Viewing CAM Usage...............................................................................................................134

Allocating FP Blocks for VLAN Processes..........................................................................135

8 Access Control Lists (ACLs).................................................................................................137

IP Access Control Lists (ACLs)............................................................................................. 138

CAM Usage.........................................................................................................................139

Implementing ACLs on Dell Networking OS..............................................................140

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

Configuration Task List for Route Maps...................................................................... 142

Configuring Match Routes............................................................................................. 144

Configuring Set Conditions............................................................................................146

Configure a Route Map for Route Redistribution...................................................... 147

Configure a Route Map for Route Tagging.................................................................147

Continue Clause............................................................................................................... 148

IP Fragment Handling............................................................................................................148

IP Fragments ACL Examples...........................................................................................149

Layer 4 ACL Rules Examples.......................................................................................... 149

Configure a Standard IP ACL............................................................................................... 150

Configuring a Standard IP ACL Filter.............................................................................151

Configure an Extended IP ACL............................................................................................ 152

Configuring Filters with a Sequence Number............................................................ 152

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Configuring Filters Without a Sequence Number..................................................... 154

Configure Layer 2 and Layer 3 ACLs.................................................................................. 155

Assign an IP ACL to an Interface......................................................................................... 155

Applying an IP ACL................................................................................................................. 156

Counting ACL Hits............................................................................................................ 157

Configure Ingress ACLs.........................................................................................................157

Configure Egress ACLs..........................................................................................................158

Applying Egress Layer 3 ACLs (Control-Plane)...........................................................159

IP Prefix Lists............................................................................................................................159

Implementation Information......................................................................................... 160

Configuration Task List for Prefix Lists.........................................................................160

ACL Resequencing.................................................................................................................164

Resequencing an ACL or Prefix List..............................................................................165

Route Maps..............................................................................................................................166

Implementation Information..........................................................................................166

Logging of ACL Processes....................................................................................................166

Guidelines for Configuring ACL Logging.................................................................... 168

Configuring ACL Logging............................................................................................... 168

Flow-Based Monitoring Support for ACLs........................................................................169

Behavior of Flow-Based Monitoring............................................................................ 169

Enabling Flow-Based Monitoring.................................................................................. 171

Configuring UDF ACL............................................................................................................ 172

9 Bidirectional Forwarding Detection (BFD).......................................................................176

How BFD Works......................................................................................................................176

BFD Packet Format...........................................................................................................178

BFD Sessions..................................................................................................................... 180

BFD Three-Way Handshake...........................................................................................180

Session State Changes.................................................................................................... 182

Important Points to Remember.......................................................................................... 182

Configure BFD.........................................................................................................................183

Configure BFD for Physical Ports..................................................................................183

Configure BFD for Static Routes................................................................................... 186

Configure BFD for OSPF................................................................................................. 188

Configure BFD for OSPFv3..............................................................................................191

Configure BFD for IS-IS...................................................................................................192

Configure BFD for BGP................................................................................................... 195

Configure BFD for VRRP.................................................................................................202

Configuring Protocol Liveness......................................................................................205

Troubleshooting BFD...................................................................................................... 205

10 Border Gateway Protocol IPv4 (BGPv4)........................................................................ 207

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Autonomous Systems (AS)................................................................................................... 207

Sessions and Peers.................................................................................................................210

Establish a Session............................................................................................................210

Route Reflectors......................................................................................................................211

BGP Attributes......................................................................................................................... 212

Best Path Selection Criteria............................................................................................ 212

Weight................................................................................................................................. 215

Local Preference...............................................................................................................215

Multi-Exit Discriminators (MEDs)...................................................................................216

Origin...................................................................................................................................217

AS Path................................................................................................................................ 217

Next Hop............................................................................................................................ 218

Multiprotocol BGP..................................................................................................................218

Implement BGP with Dell Networking OS........................................................................219

Additional Path (Add-Path) Support............................................................................. 219

Advertise IGP Cost as MED for Redistributed Routes............................................... 219

Ignore Router-ID in Best-Path Calculation................................................................220

Four-Byte AS Numbers................................................................................................... 220

AS4 Number Representation..........................................................................................221

AS Number Migration...................................................................................................... 222

BGP4 Management Information Base (MIB)...............................................................224

Important Points to Remember.................................................................................... 224

Configuration Information................................................................................................... 225

BGP Configuration.................................................................................................................226

Enabling BGP.....................................................................................................................227

Configuring AS4 Number Representations................................................................ 230

Configuring Peer Groups................................................................................................232

Configuring BGP Fast Fall-Over....................................................................................235

Configuring Passive Peering.......................................................................................... 236

Maintaining Existing AS Numbers During an AS Migration......................................237

Allowing an AS Number to Appear in its Own AS Path............................................ 238

Enabling Graceful Restart...............................................................................................239

Enabling Neighbor Graceful Restart............................................................................ 240

Filtering on an AS-Path Attribute...................................................................................241

Regular Expressions as Filters........................................................................................242

Redistributing Routes...................................................................................................... 244

Enabling Additional Paths...............................................................................................245

Configuring IP Community Lists...................................................................................245

Configuring an IP Extended Community List.............................................................246

Filtering Routes with Community Lists........................................................................247

Manipulating the COMMUNITY Attribute................................................................... 248

Changing MED Attributes...............................................................................................250

9.10(0.1)

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Changing the LOCAL_PREFERENCE Attribute.......................................................... 250

Configuring the local System or a Different System to be the Next Hop for

BGP-Learned Routes....................................................................................................... 251

Changing the WEIGHT Attribute...................................................................................252

Enabling Multipath........................................................................................................... 252

Filtering BGP Routes........................................................................................................252

Filtering BGP Routes Using Route Maps..................................................................... 254

Filtering BGP Routes Using AS-PATH Information....................................................255

Configuring BGP Route Reflectors...............................................................................256

Aggregating Routes......................................................................................................... 256

Configuring BGP Confederations................................................................................. 257

Enabling Route Flap Dampening...................................................................................257

Changing BGP Timers.....................................................................................................260

Enabling BGP Neighbor Soft-Reconfiguration...........................................................261

Route Map Continue....................................................................................................... 262

Enabling MBGP Configurations...........................................................................................263

BGP Regular Expression Optimization.............................................................................. 263

Debugging BGP......................................................................................................................264

Storing Last and Bad PDUs.............................................................................................265

Capturing PDUs................................................................................................................266

PDU Counters................................................................................................................... 267

Sample Configurations..........................................................................................................267

11 Content Addressable Memory (CAM)............................................................................. 274

CAM Allocation....................................................................................................................... 274

Test CAM Usage..................................................................................................................... 276

View CAM-ACL Settings........................................................................................................277

View CAM Usage.................................................................................................................... 279

CAM Optimization..................................................................................................................279

Troubleshoot CAM Profiling................................................................................................ 279

QoS CAM Region Limitation.......................................................................................... 279

12 Control Plane Policing (CoPP)......................................................................................... 281

Configure Control Plane Policing.......................................................................................283

Configuring CoPP for Protocols...................................................................................283

Configuring CoPP for CPU Queues.............................................................................285

CoPP for OSPFv3 Packets.............................................................................................. 286

Configuring CoPP for OSPFv3...................................................................................... 290

Displaying CoPP Configuration ....................................................................................291

13 Data Center Bridging (DCB)............................................................................................. 293

Ethernet Enhancements in Data Center Bridging...........................................................293

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Priority-Based Flow Control.......................................................................................... 295

Enhanced Transmission Selection................................................................................296

Data Center Bridging Exchange Protocol (DCBx).....................................................297

Data Center Bridging in a Traffic Flow........................................................................ 298

Enabling Data Center Bridging............................................................................................298

DCB Maps and its Attributes.......................................................................................... 299

Data Center Bridging: Default Configuration.................................................................. 300

Configuring Priority-Based Flow Control......................................................................... 301

Configuring Lossless Queues........................................................................................302

Configuring PFC in a DCB Map...........................................................................................303

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

PFC Prerequisites and Restrictions...............................................................................304

Applying a DCB Map on a Port............................................................................................305

Configuring PFC without a DCB Map................................................................................305

Configuring Lossless QueuesExample:.......................................................................306

Priority-Based Flow Control Using Dynamic Buffer Method....................................... 308

Pause and Resume of Traffic.........................................................................................308

Buffer Sizes for Lossless or PFC Packets.....................................................................309

Behavior of Tagged Packets................................................................................................309

Configuration Example for DSCP and PFC Priorities......................................................310

Using PFC to Manage Converged Ethernet Traffic..........................................................311

Configure Enhanced Transmission Selection...................................................................311

ETS Prerequisites and Restrictions................................................................................ 311

Creating an ETS Priority Group......................................................................................312

ETS Operation with DCBx...............................................................................................313

Configuring Bandwidth Allocation for DCBx CIN..................................................... 314

Configuring ETS in a DCB Map......................................................................................315

Hierarchical Scheduling in ETS Output Policies.............................................................. 316

Using ETS to Manage Converged Ethernet Traffic..........................................................317

Applying DCB Policies in a Switch Stack........................................................................... 317

Configure a DCBx Operation...............................................................................................318

DCBx Operation................................................................................................................318

DCBx Port Roles................................................................................................................318

DCB Configuration Exchange....................................................................................... 320

Configuration Source Election...................................................................................... 321

Propagation of DCB Information.................................................................................. 321

Auto-Detection and Manual Configuration of the DCBx Version......................... 322

DCBx Example.................................................................................................................. 322

DCBx Prerequisites and Restrictions............................................................................323

Configuring DCBx............................................................................................................ 323

Verifying the DCB Configuration........................................................................................ 327

QoS dot1p Traffic Classification and Queue Assignment............................................. 338

9.10(0.1)

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Configuring the Dynamic Buffer Method......................................................................... 339

Sample DCB Configuration................................................................................................. 340

PFC and ETS Configuration Command Examples.................................................... 342

14 Dynamic Host Configuration Protocol (DHCP)............................................................343

DHCP Packet Format and Options.....................................................................................343

Assign an IP Address using DHCP...................................................................................... 345

Implementation Information...............................................................................................346

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

Configuring the Server for Automatic Address Allocation...................................... 348

Specifying a Default Gateway........................................................................................349

Configure a Method of Hostname Resolution.......................................................... 349

Using DNS for Address Resolution............................................................................... 350

Using NetBIOS WINS for Address Resolution............................................................ 350

Creating Manual Binding Entries...................................................................................350

Debugging the DHCP Server..........................................................................................351

Using DHCP Clear Commands......................................................................................351

Configure the System to be a Relay Agent....................................................................... 351

Configure the System to be a DHCP Client..................................................................... 353

Configuring the DHCP Client System..........................................................................354

DHCP Client on a Management Interface.................................................................. 355

DHCP Client Operation with Other Features.............................................................356

Configure the System for User Port Stacking (Option 230)..........................................357

Configure Secure DHCP.......................................................................................................357

Option 82........................................................................................................................... 357

DHCP Snooping............................................................................................................... 358

Drop DHCP Packets on Snooped VLANs Only..........................................................362

Dynamic ARP Inspection................................................................................................ 362

Configuring Dynamic ARP Inspection......................................................................... 363

Source Address Validation....................................................................................................365

Enabling IP Source Address Validation........................................................................ 365

DHCP MAC Source Address Validation....................................................................... 366

Enabling IP+MAC Source Address Validation............................................................ 366

Viewing the Number of SAV Dropped Packets..........................................................367

Clearing the Number of SAV Dropped Packets......................................................... 367

15 Equal Cost Multi-Path (ECMP)......................................................................................... 368

ECMP for Flow-Based Affinity.............................................................................................368

Configuring the Hash Algorithm...................................................................................368

Enabling Deterministic ECMP Next Hop.....................................................................368

Configuring the Hash Algorithm Seed.........................................................................369

Link Bundle Monitoring........................................................................................................ 369

9.10(0.1)

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Managing ECMP Group Paths....................................................................................... 370

Creating an ECMP Group Bundle..................................................................................371

Modifying the ECMP Group Threshold........................................................................ 371

RTAG7....................................................................................................................................... 372

Flow-based Hashing for ECMP........................................................................................... 373

16 FIP Snooping........................................................................................................................377

Fibre Channel over Ethernet................................................................................................ 377

Ensure Robustness in a Converged Ethernet Network.................................................. 377

FIP Snooping on Ethernet Bridges......................................................................................379

FIP Snooping in a Switch Stack...........................................................................................382

Using FIP Snooping................................................................................................................382

FIP Snooping Prerequisites.............................................................................................382

Important Points to Remember.................................................................................... 383

Enabling the FCoE Transit Feature............................................................................... 384

Enable FIP Snooping on VLANs.....................................................................................384

Configure the FC-MAP Value........................................................................................ 384

Configure a Port for a Bridge-to-Bridge Link............................................................ 385

Configure a Port for a Bridge-to-FCF Link................................................................. 385

Impact on Other Software Features.............................................................................385

FIP Snooping Restrictions.............................................................................................. 386

Configuring FIP Snooping..............................................................................................386

Displaying FIP Snooping Information................................................................................ 387

FCoE Transit Configuration Example.................................................................................393

17 FIPS Cryptography............................................................................................................. 395

Configuration Tasks...............................................................................................................395

Preparing the System............................................................................................................ 396

Enabling FIPS Mode...............................................................................................................396

Generating Host-Keys...........................................................................................................397

Monitoring FIPS Mode Status...............................................................................................397

Disabling FIPS Mode.............................................................................................................. 397

18 Force10 Resilient Ring Protocol (FRRP).........................................................................399

Protocol Overview.................................................................................................................399

Ring Status.........................................................................................................................400

Multiple FRRP Rings......................................................................................................... 401

Important FRRP Points....................................................................................................402

Important FRRP Concepts............................................................................................. 403

Implementing FRRP...............................................................................................................404

FRRP Configuration...............................................................................................................405

Creating the FRRP Group...............................................................................................405

9.10(0.1)

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Configuring the Control VLAN......................................................................................405

Configuring and Adding the Member VLANs.............................................................406

Setting the FRRP Timers................................................................................................. 408

Clearing the FRRP Counters..........................................................................................408

Viewing the FRRP Configuration.................................................................................. 408

Viewing the FRRP Information......................................................................................408

Troubleshooting FRRP..........................................................................................................409

Configuration Checks.....................................................................................................409

Sample Configuration and Topology................................................................................409

19 GARP VLAN Registration Protocol (GVRP).................................................................... 412

Important Points to Remember.......................................................................................... 412

Configure GVRP......................................................................................................................414

Related Configuration Tasks.......................................................................................... 415

Enabling GVRP Globally........................................................................................................ 415

Enabling GVRP on a Layer 2 Interface............................................................................... 415

Configure GVRP Registration...............................................................................................416

Configure a GARP Timer.......................................................................................................416

RPM Redundancy................................................................................................................... 417

20 High Availability (HA).........................................................................................................418

Component Redundancy..................................................................................................... 418

Automatic and Manual Stack Unit Failover................................................................. 419

Synchronization between Management and Standby Units.................................. 420

Forcing an Stack Unit Failover.......................................................................................420

Specifying an Auto-Failover Limit.................................................................................420

Disabling Auto-Reboot....................................................................................................421

Manually Synchronizing Management and Standby Units...................................... 421

Pre-Configuring a Stack Unit Slot.......................................................................................421

Removing a Provisioned Logical Stack Unit..................................................................... 421

Hitless Behavior...................................................................................................................... 422

Graceful Restart......................................................................................................................422

Software Resiliency................................................................................................................423

Software Component Health Monitoring................................................................... 423

System Health Monitoring..............................................................................................423

Failure and Event Logging..............................................................................................423

Hot-Lock Behavior................................................................................................................ 424

21 Internet Group Management Protocol (IGMP).............................................................425

IGMP Implementation Information....................................................................................425

IGMP Protocol Overview......................................................................................................426

IGMP Version 2................................................................................................................. 426

9.10(0.1)

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IGMP Version 3................................................................................................................. 427

Configure IGMP...................................................................................................................... 431

Related Configuration Tasks.......................................................................................... 431

Viewing IGMP Enabled Interfaces.......................................................................................431

Selecting an IGMP Version...................................................................................................432

Viewing IGMP Groups...........................................................................................................432

Adjusting Timers.....................................................................................................................433

Adjusting Query and Response Timers....................................................................... 433

Preventing a Host from Joining a Group..........................................................................434

Enabling IGMP Immediate-Leave....................................................................................... 437

IGMP Snooping.......................................................................................................................437

IGMP Snooping Implementation Information............................................................437

Configuring IGMP Snooping..........................................................................................438

Removing a Group-Port Association...........................................................................438

Disabling Multicast Flooding..........................................................................................439

Specifying a Port as Connected to a Multicast Router............................................ 439

Configuring the Switch as Querier...............................................................................439

Fast Convergence after MSTP Topology Changes.........................................................440

Egress Interface Selection (EIS) for HTTP and IGMP Applications..............................440

Protocol Separation......................................................................................................... 441

Enabling and Disabling Management Egress Interface Selection......................... 442

Handling of Management Route Configuration........................................................444

Handling of Switch-Initiated Traffic.............................................................................444

Handling of Switch-Destined Traffic........................................................................... 445

Handling of Transit Traffic (Traffic Separation)..........................................................446

Mapping of Management Applications and Traffic Type........................................ 446

Behavior of Various Applications for Switch-Initiated Traffic ................................447

Behavior of Various Applications for Switch-Destined Traffic ..............................448

Interworking of EIS With Various Applications.......................................................... 449

Designating a Multicast Router Interface......................................................................... 450

22 Interfaces............................................................................................................................. 451

Basic Interface Configuration.............................................................................................. 451

Advanced Interface Configuration......................................................................................451

Interface Types....................................................................................................................... 452

View Basic Interface Information........................................................................................453

Resetting an Interface to its Factory Default State......................................................... 455

Enabling a Physical Interface...............................................................................................455

Physical Interfaces................................................................................................................. 456

Configuration Task List for Physical Interfaces..........................................................456

Overview of Layer Modes...............................................................................................456

Configuring Layer 2 (Data Link) Mode......................................................................... 457

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14

Configuring Layer 2 (Interface) Mode..........................................................................457

Configuring Layer 3 (Network) Mode.......................................................................... 458

Configuring Layer 3 (Interface) Mode..........................................................................458

Egress Interface Selection (EIS)...........................................................................................459

Important Points to Remember.................................................................................... 459

Configuring EIS.................................................................................................................460

Management Interfaces....................................................................................................... 460

Configuring Management Interfaces...........................................................................460

Configuring a Management Interface on an Ethernet Port.................................... 462

VLAN Interfaces......................................................................................................................463

Loopback Interfaces..............................................................................................................464

Null Interfaces........................................................................................................................ 464

Port Channel Interfaces........................................................................................................465

Port Channel Definition and Standards.......................................................................465

Port Channel Benefits..................................................................................................... 465

Port Channel Implementation.......................................................................................465

Interfaces in Port Channels............................................................................................466

Configuration Tasks for Port Channel Interfaces......................................................466

Creating a Port Channel................................................................................................. 467

Adding a Physical Interface to a Port Channel.......................................................... 467

Reassigning an Interface to a New Port Channel..................................................... 469

Configuring the Minimum Oper Up Links in a Port Channel..................................470

Adding or Removing a Port Channel from a VLAN...................................................470

Assigning an IP Address to a Port Channel.................................................................472

Deleting or Disabling a Port Channel...........................................................................472

Load Balancing Through Port Channels..................................................................... 472

Changing the Hash Algorithm....................................................................................... 473

Bulk Configuration.................................................................................................................473

Interface Range.................................................................................................................473

Bulk Configuration Examples........................................................................................ 474

Defining Interface Range Macros....................................................................................... 476

Define the Interface Range............................................................................................ 476

Choosing an Interface-Range Macro.......................................................................... 476

Monitoring and Maintaining Interfaces............................................................................. 476

Maintenance Using TDR................................................................................................. 478

Non Dell-Qualified Transceivers........................................................................................ 478

Splitting QSFP Ports to SFP+ Ports.....................................................................................479

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..........................................480

Important Points to Remember....................................................................................480

Example Scenarios........................................................................................................... 481

Link Dampening..................................................................................................................... 482

Important Points to Remember....................................................................................482

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Enabling Link Dampening.............................................................................................. 482

Link Bundle Monitoring........................................................................................................ 484

Using Ethernet Pause Frames for Flow Control..............................................................485

Enabling Pause Frames...................................................................................................486

Configure the MTU Size on an Interface.......................................................................... 486

Port-Pipes................................................................................................................................487

Auto-Negotiation on Ethernet Interfaces.........................................................................488

Setting the Speed and Duplex Mode of Ethernet Interfaces.................................. 488

Set Auto-Negotiation Options...................................................................................... 490

View Advanced Interface Information...............................................................................490

Configuring the Interface Sampling Size.....................................................................491

Dynamic Counters.................................................................................................................493

Clearing Interface Counters.......................................................................................... 493

23 Internet Protocol Security (IPSec).................................................................................. 495

Configuring IPSec .................................................................................................................496

24 IPv4 Routing....................................................................................................................... 497

IP Addresses............................................................................................................................498

Implementation Information.........................................................................................498

Configuration Tasks for IP Addresses................................................................................498

Assigning IP Addresses to an Interface............................................................................. 499

Configuring Static Routes....................................................................................................500

Configure Static Routes for the Management Interface................................................501

IPv4 Path MTU Discovery Overview...................................................................................501

Using the Configured Source IP Address in ICMP Messages....................................... 502

Configuring the ICMP Source Interface......................................................................502

Configuring the Duration to Establish a TCP Connection............................................503

Enabling Directed Broadcast...............................................................................................503

Resolution of Host Names...................................................................................................504

Enabling Dynamic Resolution of Host Names................................................................ 504

Specifying the Local System Domain and a List of Domains....................................... 505

Configuring DNS with Traceroute......................................................................................505

ARP............................................................................................................................................506

Configuration Tasks for ARP................................................................................................506

Configuring Static ARP Entries............................................................................................ 507

Enabling Proxy ARP................................................................................................................507

Clearing ARP Cache.............................................................................................................. 508

ARP Learning via Gratuitous ARP........................................................................................508

Enabling ARP Learning via Gratuitous ARP.......................................................................509

ARP Learning via ARP Request............................................................................................ 509

Configuring ARP Retries........................................................................................................510

9.10(0.1)

16

ICMP.......................................................................................................................................... 511

Configuration Tasks for ICMP.............................................................................................. 511

Enabling ICMP Unreachable Messages.............................................................................. 511

UDP Helper.............................................................................................................................. 512

Configure UDP Helper.....................................................................................................512

Important Points to Remember.....................................................................................512

Enabling UDP Helper............................................................................................................. 512

Configuring a Broadcast Address........................................................................................513

Configurations Using UDP Helper...................................................................................... 513

UDP Helper with Broadcast-All Addresses....................................................................... 514

UDP Helper with Subnet Broadcast Addresses................................................................515

UDP Helper with Configured Broadcast Addresses........................................................515

UDP Helper with No Configured Broadcast Addresses................................................. 516

Troubleshooting UDP Helper.............................................................................................. 516

25 IPv6 Routing........................................................................................................................518

Protocol Overview................................................................................................................. 518

Extended Address Space.................................................................................................519

Stateless Autoconfiguration........................................................................................... 519

IPv6 Headers..................................................................................................................... 520

IPv6 Header Fields............................................................................................................520

Extension Header Fields..................................................................................................522

Addressing..........................................................................................................................523

Implementing IPv6 with Dell Networking OS..................................................................524

ICMPv6..................................................................................................................................... 527

Path MTU Discovery.............................................................................................................. 527

IPv6 Neighbor Discovery......................................................................................................528

IPv6 Neighbor Discovery of MTU Packets.................................................................. 529

Configuration Task List for IPv6 RDNSS............................................................................529

Configuring the IPv6 Recursive DNS Server...............................................................530

Debugging IPv6 RDNSS Information Sent to the Host ...........................................530

Displaying IPv6 RDNSS Information............................................................................. 531

Secure Shell (SSH) Over an IPv6 Transport.......................................................................532

Configuration Tasks for IPv6................................................................................................532

Adjusting Your CAM-Profile........................................................................................... 532

Assigning an IPv6 Address to an Interface.................................................................. 533

Assigning a Static IPv6 Route.........................................................................................534

Configuring Telnet with IPv6.........................................................................................534

SNMP over IPv6................................................................................................................ 535

Displaying IPv6 Information...........................................................................................535

Displaying an IPv6 Interface Information....................................................................536

Showing IPv6 Routes.......................................................................................................536

9.10(0.1)

17

Showing the Running-Configuration for an Interface.............................................538

Clearing IPv6 Routes....................................................................................................... 538

Configuring IPv6 RA Guard..................................................................................................539

Configuring IPv6 RA Guard on an Interface............................................................... 541

Monitoring IPv6 RA Guard.............................................................................................. 541

26 iSCSI Optimization.............................................................................................................542

iSCSI Optimization Overview...............................................................................................542

Monitoring iSCSI Traffic Flows...................................................................................... 544

Application of Quality of Service to iSCSI Traffic Flows...........................................545

Information Monitored in iSCSI Traffic Flows............................................................ 545

Detection and Auto-Configuration for Dell EqualLogic Arrays............................. 546

Configuring Detection and Ports for Dell Compellent Arrays................................547

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.....................547

Enable and Disable iSCSI Optimization.......................................................................548

Default iSCSI Optimization Values..................................................................................... 549

iSCSI Optimization Prerequisites........................................................................................ 549

Configuring iSCSI Optimization..........................................................................................549

Displaying iSCSI Optimization Information...................................................................... 552

27 Intermediate System to Intermediate System.............................................................. 554

IS-IS Protocol Overview....................................................................................................... 554

IS-IS Addressing......................................................................................................................555

Multi-Topology IS-IS............................................................................................................. 555

Transition Mode................................................................................................................556

Interface Support..............................................................................................................556

Adjacencies........................................................................................................................556

Graceful Restart......................................................................................................................556

Timers................................................................................................................................. 557

Implementation Information............................................................................................... 557

Configuration Information...................................................................................................558

Configuration Tasks for IS-IS.........................................................................................559

Configuring the Distance of a Route........................................................................... 567

Changing the IS-Type..................................................................................................... 568

Redistributing IPv4 Routes............................................................................................. 570

Redistributing IPv6 Routes..............................................................................................571

Configuring Authentication Passwords....................................................................... 572

Setting the Overload Bit.................................................................................................. 573

Debugging IS-IS................................................................................................................573

IS-IS Metric Styles...................................................................................................................575

Configure Metric Values....................................................................................................... 575

Maximum Values in the Routing Table........................................................................ 575

9.10(0.1)

18

Change the IS-IS Metric Style in One Level Only...................................................... 575

Leaks from One Level to Another................................................................................. 577

Sample Configurations..........................................................................................................578

28 Link Aggregation Control Protocol (LACP)...................................................................581

Introduction to Dynamic LAGs and LACP.........................................................................581

Important Points to Remember.....................................................................................581

LACP Modes...................................................................................................................... 582

Configuring LACP Commands......................................................................................582

LACP Configuration Tasks....................................................................................................583

Creating a LAG..................................................................................................................583

Configuring the LAG Interfaces as Dynamic..............................................................584

Setting the LACP Long Timeout................................................................................... 584

Monitoring and Debugging LACP.................................................................................585

Shared LAG State Tracking...................................................................................................585

Configuring Shared LAG State Tracking......................................................................586

Important Points about Shared LAG State Tracking.................................................588

LACP Basic Configuration Example................................................................................... 588

Configure a LAG on ALPHA........................................................................................... 588

29 Layer 2.................................................................................................................................. 597

Manage the MAC Address Table......................................................................................... 597

Clearing the MAC Address Table...................................................................................597

Setting the Aging Time for Dynamic Entries...............................................................597

Configuring a Static MAC Address............................................................................... 598

Displaying the MAC Address Table...............................................................................598

MAC Learning Limit............................................................................................................... 598

Setting the MAC Learning Limit.................................................................................... 599

mac learning-limit Dynamic.......................................................................................... 599

mac learning-limit mac-address-sticky......................................................................600

mac learning-limit station-move................................................................................. 600

mac learning-limit no-station-move.......................................................................... 600

Learning Limit Violation Actions....................................................................................601

Setting Station Move Violation Actions........................................................................601

Recovering from Learning Limit and Station Move Violations...............................602

NIC Teaming...........................................................................................................................602

Configure Redundant Pairs..................................................................................................604

Important Points about Configuring Redundant Pairs............................................ 606

Far-End Failure Detection.................................................................................................... 607

FEFD State Changes........................................................................................................ 608

Configuring FEFD............................................................................................................. 610

Enabling FEFD on an Interface.......................................................................................611

9.10(0.1)

19

Debugging FEFD............................................................................................................... 612

30 Link Layer Discovery Protocol (LLDP)............................................................................ 613

802.1AB (LLDP) Overview..................................................................................................... 613

Protocol Data Units..........................................................................................................613

Optional TLVs..........................................................................................................................614

Management TLVs............................................................................................................615

TIA-1057 (LLDP-MED) Overview.........................................................................................617

TIA Organizationally Specific TLVs................................................................................617

Configure LLDP...................................................................................................................... 622

Related Configuration Tasks..........................................................................................622

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

LLDP Compatibility.......................................................................................................... 622

CONFIGURATION versus INTERFACE Configurations...................................................622

Enabling LLDP.........................................................................................................................623

Disabling and Undoing LLDP.........................................................................................623

Enabling LLDP on Management Ports...............................................................................624

Disabling and Undoing LLDP on Management Ports...............................................624

Advertising TLVs..................................................................................................................... 624

Viewing the LLDP Configuration........................................................................................ 626

Viewing Information Advertised by Adjacent LLDP Agents.......................................... 626

Configuring LLDPDU Intervals.............................................................................................627

Configuring Transmit and Receive Mode.........................................................................628

Configuring the Time to Live Value................................................................................... 629

Debugging LLDP.................................................................................................................... 630

Relevant Management Objects........................................................................................... 631

31 Microsoft Network Load Balancing................................................................................ 637

NLB Unicast Mode Scenario................................................................................................ 637

NLB Multicast Mode Scenario............................................................................................. 638

Limitations of the NLB Feature........................................................................................... 638

Microsoft Clustering..............................................................................................................638

Enable and Disable VLAN Flooding ...................................................................................639

Configuring a Switch for NLB .............................................................................................639

Enabling a Switch for Multicast NLB............................................................................ 639

32 Multicast Source Discovery Protocol (MSDP)...............................................................641

Protocol Overview................................................................................................................. 641

Anycast RP...............................................................................................................................644

Implementation Information...............................................................................................644

Configure Multicast Source Discovery Protocol.............................................................644

Related Configuration Tasks..........................................................................................645

9.10(0.1)

20

Enable MSDP...........................................................................................................................649

Manage the Source-Active Cache..................................................................................... 650

Viewing the Source-Active Cache............................................................................... 650

Limiting the Source-Active Cache................................................................................651

Clearing the Source-Active Cache............................................................................... 651

Enabling the Rejected Source-Active Cache..............................................................651

Accept Source-Active Messages that Fail the RFP Check.............................................652

Specifying Source-Active Messages.................................................................................. 655

Limiting the Source-Active Messages from a Peer.........................................................656

Preventing MSDP from Caching a Local Source.............................................................656

Preventing MSDP from Caching a Remote Source........................................................ 657

Preventing MSDP from Advertising a Local Source........................................................658

Logging Changes in Peership States..................................................................................659

Terminating a Peership.........................................................................................................659

Clearing Peer Statistics......................................................................................................... 660

Debugging MSDP...................................................................................................................660

MSDP with Anycast RP.......................................................................................................... 661

Configuring Anycast RP........................................................................................................662

Reducing Source-Active Message Flooding.............................................................. 663

Specifying the RP Address Used in SA Messages...................................................... 663

MSDP Sample Configurations.............................................................................................666

33 Multiple Spanning Tree Protocol (MSTP)...................................................................... 669

Protocol Overview.................................................................................................................669

Spanning Tree Variations...................................................................................................... 671

Implementation Information..........................................................................................671

Configure Multiple Spanning Tree Protocol.....................................................................671

Related Configuration Tasks.......................................................................................... 671

Enable Multiple Spanning Tree Globally............................................................................672

Adding and Removing Interfaces........................................................................................672

Creating Multiple Spanning Tree Instances......................................................................673

Influencing MSTP Root Selection.......................................................................................674

Interoperate with Non-Dell Bridges...................................................................................675

Changing the Region Name or Revision...........................................................................675

Modifying Global Parameters.............................................................................................. 676

Modifying the Interface Parameters...................................................................................677

Configuring an EdgePort......................................................................................................678

Flush MAC Addresses after a Topology Change............................................................. 679

MSTP Sample Configurations............................................................................................. 680

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3

Running-ConfigurationSFTOS Example Running-Configuration......................... 680

Debugging and Verifying MSTP Configurations..............................................................683

9.10(0.1)

21

34 Multicast Features............................................................................................................. 686

Enabling IP Multicast.............................................................................................................686

Implementation Information...............................................................................................686

Multicast Policies....................................................................................................................687

IPv4 Multicast Policies.....................................................................................................687

35 Object Tracking..................................................................................................................695

Object Tracking Overview................................................................................................... 695

Track Layer 2 Interfaces..................................................................................................696

Track Layer 3 Interfaces..................................................................................................697

Track IPv4 and IPv6 Routes............................................................................................697

Set Tracking Delays......................................................................................................... 698

VRRP Object Tracking.....................................................................................................698

Object Tracking Configuration........................................................................................... 699

Tracking a Layer 2 Interface.......................................................................................... 699

Tracking a Layer 3 Interface...........................................................................................700

Track an IPv4/IPv6 Route............................................................................................... 702

Displaying Tracked Objects................................................................................................. 706

36 Open Shortest Path First (OSPFv2 and OSPFv3).......................................................... 708

Protocol Overview.................................................................................................................708

Autonomous System (AS) Areas....................................................................................709

Area Types..........................................................................................................................710

Networks and Neighbors................................................................................................ 710

Router Types......................................................................................................................710

Designated and Backup Designated Routers..............................................................712

Link-State Advertisements (LSAs).................................................................................. 713

Router Priority and Cost..................................................................................................714

OSPF with Dell Networking OS............................................................................................715

Graceful Restart.................................................................................................................716

Fast Convergence (OSPFv2, IPv4 Only)........................................................................717

Multi-Process OSPFv2 with VRF.................................................................................... 717

OSPF ACK Packing............................................................................................................718

Setting OSPF Adjacency with Cisco Routers.............................................................. 718

Configuration Information....................................................................................................719

Configuration Task List for OSPFv2 (OSPF for IPv4)................................................. 719

Configuration Task List for OSPFv3 (OSPF for IPv6)................................................. 735

Configuration Task List for OSPFv3 (OSPF for IPv6).......................................................750

Enabling IPv6 Unicast Routing....................................................................................... 751

Applying cost for OSPFv3................................................................................................751

Assigning IPv6 Addresses on an Interface................................................................... 751

9.10(0.1)

22

Assigning Area ID on an Interface.................................................................................752

Assigning OSPFv3 Process ID and Router ID Globally..............................................752

Assigning OSPFv3 Process ID and Router ID to a VRF............................................. 753

Configuring Stub Areas................................................................................................... 753

Configuring Passive-Interface....................................................................................... 754

Redistributing Routes...................................................................................................... 754

Configuring a Default Route.......................................................................................... 755

Enabling OSPFv3 Graceful Restart................................................................................755

OSPFv3 Authentication Using IPsec............................................................................. 757

Troubleshooting OSPFv3................................................................................................765

37 Policy-based Routing (PBR)..............................................................................................767

Overview.................................................................................................................................. 767

Implementing PBR................................................................................................................. 768

Configuration Task List for Policy-based Routing.......................................................... 769

PBR Exceptions (Permit)................................................................................................. 769

Create a Redirect List.......................................................................................................770

Create a Rule for a Redirect-list....................................................................................770

Apply a Redirect-list to an Interface using a Redirect-group................................. 772

Sample Configuration............................................................................................................774

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface

2/11View Redirect-List GOLD........................................................................................ 775

38 PIM Sparse-Mode (PIM-SM)............................................................................................. 779

Implementation Information............................................................................................... 779

Protocol Overview................................................................................................................. 779

Requesting Multicast Traffic...........................................................................................779

Refuse Multicast Traffic...................................................................................................780

Send Multicast Traffic......................................................................................................780

Configuring PIM-SM.............................................................................................................. 781

Related Configuration Tasks.......................................................................................... 781

Enable PIM-SM........................................................................................................................781

Configuring S,G Expiry Timers.............................................................................................782

Configuring a Static Rendezvous Point.............................................................................783

Overriding Bootstrap Router Updates......................................................................... 784

Configuring a Designated Router.......................................................................................784

Creating Multicast Boundaries and Domains...................................................................785

39 PIM Source-Specific Mode (PIM-SSM)...........................................................................786

Implementation Information............................................................................................... 786

Important Points to Remember.....................................................................................787

Configure PIM-SSM............................................................................................................... 787

9.10(0.1)

23

Related Configuration Tasks.......................................................................................... 787

Enabling PIM-SSM..................................................................................................................787

Use PIM-SSM with IGMP Version 2 Hosts.........................................................................788

Configuring PIM-SSM with IGMPv2............................................................................. 788

40 Port Monitoring..................................................................................................................791

Important Points to Remember...........................................................................................791

Port Monitoring...................................................................................................................... 792

Configuring Port Monitoring............................................................................................... 794

Configuring Monitor Multicast Queue...............................................................................795

Enabling Flow-Based Monitoring....................................................................................... 796

Remote Port Mirroring.......................................................................................................... 797

Remote Port Mirroring Example....................................................................................797

Configuring Remote Port Mirroring............................................................................. 798

Displaying Remote-Port Mirroring Configurations.................................................. 800

Configuring the Sample Remote Port Mirroring....................................................... 801

Encapsulated Remote Port Monitoring............................................................................ 804

ERPM Behavior on a typical Dell Networking OS .......................................................... 806

Decapsulation of ERPM packets at the Destination IP/ Analyzer.......................... 807

41 Private VLANs (PVLAN)......................................................................................................809

Private VLAN Concepts........................................................................................................ 809

Using the Private VLAN Commands...................................................................................810

Configuration Task List..........................................................................................................811

Creating PVLAN ports......................................................................................................812

Creating a Primary VLAN.................................................................................................813

Creating a Community VLAN.........................................................................................814

Creating an Isolated VLAN..............................................................................................814

Private VLAN Configuration Example.................................................................................816

Inspecting the Private VLAN Configuration...................................................................... 817

42 Per-VLAN Spanning Tree Plus (PVST+)..........................................................................820

Protocol Overview.................................................................................................................820

Implementation Information............................................................................................... 821

Configure Per-VLAN Spanning Tree Plus......................................................................... 822

Related Configuration Tasks..........................................................................................822

Enabling PVST+...................................................................................................................... 822

Disabling PVST+..................................................................................................................... 823

Influencing PVST+ Root Selection.....................................................................................824

Modifying Global PVST+ Parameters.................................................................................825

Modifying Interface PVST+ Parameters............................................................................ 826

Configuring an EdgePort......................................................................................................827

9.10(0.1)

24

PVST+ in Multi-Vendor Networks...................................................................................... 828

Enabling PVST+ Extend System ID.....................................................................................828

PVST+ Sample Configurations............................................................................................829

43 Quality of Service (QoS)....................................................................................................832

Implementation Information............................................................................................... 835

Port-Based QoS Configurations.........................................................................................835

Setting dot1p Priorities for Incoming Traffic.............................................................. 835

Honoring dot1p Priorities on Ingress Traffic.............................................................. 836

Configuring Port-Based Rate Policing.........................................................................837

Configuring Port-Based Rate Shaping.........................................................................837

Policy-Based QoS Configurations..................................................................................... 838

Classify Traffic...................................................................................................................838

Create a QoS Policy.........................................................................................................842

Create Policy Maps.......................................................................................................... 845

DSCP Color Maps.................................................................................................................. 849

Creating a DSCP Color Map.......................................................................................... 849

Displaying DSCP Color Maps........................................................................................ 850

Displaying a DSCP Color Policy Configuration ........................................................ 850

Enabling QoS Rate Adjustment........................................................................................... 851

Enabling Strict-Priority Queueing.......................................................................................852

Weighted Random Early Detection....................................................................................852

Creating WRED Profiles.................................................................................................. 853

Applying a WRED Profile to Traffic...............................................................................854

Displaying Default and Configured WRED Profiles...................................................854

Displaying WRED Drop Statistics.................................................................................. 854

Displaying egress-queue Statistics...............................................................................855

Pre-Calculating Available QoS CAM Space......................................................................855

Configuring Weights and ECN for WRED ........................................................................856

Global Service Pools With WRED and ECN Settings.................................................857

Configuring WRED and ECN Attributes............................................................................ 858

Guidelines for Configuring ECN for Classifying and Color-Marking Packets...........859

Sample configuration to mark non-ecn packets as “yellow” with Multiple

traffic class.........................................................................................................................860

Classifying Incoming Packets Using ECN and Color-Marking...............................860

Sample configuration to mark non-ecn packets as “yellow” with single

traffic class.........................................................................................................................862

Applying Layer 2 Match Criteria on a Layer 3 Interface.................................................864

Applying DSCP and VLAN Match Criteria on a Service Queue....................................864

Classifying Incoming Packets Using ECN and Color-Marking.....................................865

Guidelines for Configuring ECN for Classifying and Color-Marking Packets.......... 868

9.10(0.1)

25

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic

class.......................................................................................................................................... 868

Sample configuration to mark non-ecn packets as “yellow” with single traffic

class.......................................................................................................................................... 869

Enabling Buffer Statistics Tracking ....................................................................................870

44 Routing Information Protocol (RIP)............................................................................... 873

Protocol Overview................................................................................................................. 873

RIPv1....................................................................................................................................873

RIPv2................................................................................................................................... 874

Implementation Information............................................................................................... 874

Configuration Information...................................................................................................874

Configuration Task List....................................................................................................875

RIP Configuration Example............................................................................................ 881

45 Remote Monitoring (RMON)............................................................................................887

Implementation Information............................................................................................... 887

Fault Recovery........................................................................................................................888

Setting the RMON Alarm................................................................................................ 888

Configuring an RMON Event.........................................................................................889

Configuring RMON Collection Statistics.................................................................... 890

Configuring the RMON Collection History................................................................ 890

46 Rapid Spanning Tree Protocol (RSTP)........................................................................... 892

Protocol Overview.................................................................................................................892

Configuring Rapid Spanning Tree...................................................................................... 892

Related Configuration Tasks..........................................................................................892

Important Points to Remember..........................................................................................893

RSTP and VLT....................................................................................................................893

Configuring Interfaces for Layer 2 Mode..........................................................................893

Enabling Rapid Spanning Tree Protocol Globally...........................................................894

Adding and Removing Interfaces....................................................................................... 896

Modifying Global Parameters.............................................................................................. 897

Enabling SNMP Traps for Root Elections and Topology Changes........................898

Modifying Interface Parameters......................................................................................... 898

Enabling SNMP Traps for Root Elections and Topology Changes..............................899

Influencing RSTP Root Selection........................................................................................899

Configuring an EdgePort..................................................................................................... 900

Configuring Fast Hellos for Link State Detection............................................................901

47 Software-Defined Networking (SDN)............................................................................ 902

9.10(0.1)

26

48 Security................................................................................................................................903

AAA Accounting..................................................................................................................... 903

Configuration Task List for AAA Accounting..............................................................903

AAA Authentication............................................................................................................... 906

Configuration Task List for AAA Authentication........................................................906

Obscuring Passwords and Keys..........................................................................................909

AAA Authorization.................................................................................................................. 910

Privilege Levels Overview............................................................................................... 910

Configuration Task List for Privilege Levels................................................................ 910

RADIUS......................................................................................................................................915

RADIUS Authentication....................................................................................................915

Configuration Task List for RADIUS..............................................................................916

TACACS+.................................................................................................................................920

Configuration Task List for TACACS+......................................................................... 920

TACACS+ Remote Authentication................................................................................922

Command Authorization................................................................................................923

Protection from TCP Tiny and Overlapping Fragment Attacks....................................923

Enabling SCP and SSH.......................................................................................................... 923

Using SCP with SSH to Copy a Software Image........................................................924

Removing the RSA Host Keys and Zeroizing Storage ............................................. 926

Configuring When to Re-generate an SSH Key ........................................................926

Configuring the SSH Server Key Exchange Algorithm............................................. 926

Configuring the HMAC Algorithm for the SSH Server..............................................927

Configuring the SSH Server Cipher List.......................................................................928

Secure Shell Authentication...........................................................................................928

Troubleshooting SSH.......................................................................................................931

Telnet........................................................................................................................................ 931

VTY Line and Access-Class Configuration....................................................................... 932

VTY Line Local Authentication and Authorization.................................................... 932

VTY Line Remote Authentication and Authorization................................................933

VTY MAC-SA Filter Support............................................................................................934

Role-Based Access Control.................................................................................................934

Overview of RBAC............................................................................................................935

User Roles.......................................................................................................................... 937

AAA Authentication and Authorization for Roles.......................................................941

Role Accounting...............................................................................................................944

Display Information About User Roles.........................................................................945

49 Service Provider Bridging.................................................................................................947

VLAN Stacking.........................................................................................................................947

Important Points to Remember....................................................................................948

9.10(0.1)

27

Configure VLAN Stacking...............................................................................................949

Creating Access and Trunk Ports................................................................................. 949

Enable VLAN-Stacking for a VLAN............................................................................... 950

Configuring the Protocol Type Value for the Outer VLAN Tag............................. 950

Configuring Dell Networking OS Options for Trunk Ports......................................951

Debugging VLAN Stacking............................................................................................. 952

VLAN Stacking in Multi-Vendor Networks..................................................................952

VLAN Stacking Packet Drop Precedence..........................................................................957

Enabling Drop Eligibility.................................................................................................. 957

Honoring the Incoming DEI Value............................................................................... 958

Marking Egress Packets with a DEI Value................................................................... 959

Dynamic Mode CoS for VLAN Stacking............................................................................960

Mapping C-Tag to S-Tag dot1p Values....................................................................... 961

Layer 2 Protocol Tunneling................................................................................................. 962

Implementation Information......................................................................................... 965

Enabling Layer 2 Protocol Tunneling.......................................................................... 966

Specifying a Destination MAC Address for BPDUs................................................... 966

Setting Rate-Limit BPDUs.............................................................................................. 966

Debugging Layer 2 Protocol Tunneling...................................................................... 967

Provider Backbone Bridging................................................................................................ 967

50 sFlow.................................................................................................................................... 969

Overview..................................................................................................................................969

Implementation Information............................................................................................... 970

Important Points to Remember.................................................................................... 970

Enabling Extended sFlow......................................................................................................971

Enabling and Disabling sFlow on an Interface.................................................................972

Enabling sFlow Max-Header Size Extended.....................................................................972

sFlow Show Commands.......................................................................................................973

Displaying Show sFlow Global.......................................................................................973

Displaying Show sFlow on an Interface.......................................................................974

Displaying Show sFlow on a Stack-unit.......................................................................975

Configuring Specify Collectors........................................................................................... 975

Changing the Polling Intervals............................................................................................ 975

Back-Off Mechanism............................................................................................................ 976

sFlow on LAG ports................................................................................................................976

Enabling Extended sFlow......................................................................................................976

Important Points to Remember.....................................................................................977

51 Simple Network Management Protocol (SNMP).......................................................... 979

Protocol Overview.................................................................................................................980

Implementation Information...............................................................................................980

9.10(0.1)

28

SNMPv3 Compliance With FIPS..........................................................................................980

Configuration Task List for SNMP.......................................................................................981

Related Configuration Tasks..........................................................................................982

Important Points to Remember..........................................................................................982

Set up SNMP........................................................................................................................... 982

Creating a Community................................................................................................... 982

Setting Up User-Based Security (SNMPv3)................................................................. 983

Reading Managed Object Values....................................................................................... 984

Writing Managed Object Values......................................................................................... 985

Configuring Contact and Location Information using SNMP......................................986

Subscribing to Managed Object Value Updates using SNMP.......................................987

Enabling a Subset of SNMP Traps...................................................................................... 988

Enabling an SNMP Agent to Notify Syslog Server Failure............................................. 990

Copy Configuration Files Using SNMP.............................................................................. 991

Copying a Configuration File.........................................................................................993

Copying Configuration Files via SNMP........................................................................994

Copying the Startup-Config Files to the Running-Config......................................994

Copying the Startup-Config Files to the Server via FTP.......................................... 995

Copying the Startup-Config Files to the Server via TFTP........................................995

Copy a Binary File to the Startup-Configuration.......................................................996

Additional MIB Objects to View Copy Statistics........................................................ 996

Obtaining a Value for MIB Objects............................................................................... 997

MIB Support to Display the Available Memory Size on Flash....................................... 998

Viewing the Available Flash Memory Size...................................................................998

MIB Support to Display the Software Core Files Generated by the System..............999

Viewing the Software Core Files Generated by the System................................... 999

Manage VLANs using SNMP.............................................................................................. 1000

Creating a VLAN.............................................................................................................1000

Assigning a VLAN Alias..................................................................................................1000

Displaying the Ports in a VLAN.................................................................................... 1001

Add Tagged and Untagged Ports to a VLAN............................................................1002

Managing Overload on Startup.........................................................................................1003

Enabling and Disabling a Port using SNMP....................................................................1004

Fetch Dynamic MAC Entries using SNMP.......................................................................1004

Deriving Interface Indices.................................................................................................. 1006

Monitor Port-Channels.......................................................................................................1007

Enabling an SNMP Agent to Notify Syslog Server Failure........................................... 1008

Troubleshooting SNMP Operation.................................................................................. 1009

52 Stacking..............................................................................................................................1011

Stacking Overview................................................................................................................ 1011

Stack Management Roles..............................................................................................1011

9.10(0.1)

29

Stack Master Election.....................................................................................................1012

Virtual IP............................................................................................................................1014

Failover Roles...................................................................................................................1015

MAC Addressing on Stacks........................................................................................... 1015

Stacking LAG....................................................................................................................1016

Supported Stacking Topologies...................................................................................1017

High Availability on Stacks............................................................................................ 1017

Management Access on Stacks...................................................................................1018

Mixed-mode Stacking................................................................................................... 1019

Important Points to Remember........................................................................................ 1021

Stacking Installation Tasks..................................................................................................1021

Create a Stack..................................................................................................................1021

Add Units to an Existing Stack.....................................................................................1026

Split a Stack..................................................................................................................... 1029

Stacking Configuration Tasks............................................................................................1029

Assigning Unit Numbers to Units in an Stack...........................................................1030

Creating a Virtual Stack Unit on a Stack....................................................................1030

Displaying Information about a Stack........................................................................1030

Influencing Management Unit Selection on a Stack.............................................. 1033

Managing Redundancy on a Stack.............................................................................1034

Resetting a Unit on a Stack.......................................................................................... 1034

Enabling Mixed-mode Stacking.................................................................................. 1035

Verify a Stack Configuration.............................................................................................. 1035

Displaying the Status of Stacking Ports..................................................................... 1035

Remove Units or Front End Ports from a Stack.............................................................1037

Removing a Unit from a Stack.....................................................................................1037

Removing Front End Port Stacking............................................................................ 1038

Troubleshoot a Stack.......................................................................................................... 1039

Recover from Stack Link Flaps.................................................................................... 1039

Recover from a Card Problem State on a Stack......................................................1039

53 Storm Control...................................................................................................................1041

Configure Storm Control....................................................................................................1041

Configuring Storm Control from INTERFACE Mode..............................................1042

Configuring Storm Control from CONFIGURATION Mode..................................1042

54 Spanning Tree Protocol (STP)....................................................................................... 1044

Protocol Overview...............................................................................................................1044

Configure Spanning Tree................................................................................................... 1045

Related Configuration Tasks........................................................................................1045

Important Points to Remember........................................................................................1045

Configuring Interfaces for Layer 2 Mode........................................................................1046

9.10(0.1)

30