Dell PowerSwitch S4810P Owner's manual

Dell Configuration Guide for the S4810

System

9.5(0.0)

Notes, Cautions, and Warnings

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

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

how to avoid the problem.

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

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2014 - 06

Rev. A00

Contents

1 About this Guide......................................................................................................35

Audience..............................................................................................................................................35

Conventions........................................................................................................................................ 35

Related Documents.............................................................................................................................35

2 Configuration Fundamentals.............................................................................. 36

Accessing the Command Line............................................................................................................36

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

Navigating CLI Modes................................................................................................................... 37

The do Command...............................................................................................................................40

Undoing Commands...........................................................................................................................41

Obtaining Help.................................................................................................................................... 42

Entering and Editing Commands....................................................................................................... 42

Command History...............................................................................................................................43

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

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

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

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

Serial Console................................................................................................................................46

Accessing the CLI Interface and Running Scripts Using SSH............................................................ 47

S4810 ............................................................................................................................................ 47

Entering CLI commands Using an SSH Connection................................................................... 48

Executing Local CLI Scripts Using an SSH Connection...............................................................48

Default Configuration......................................................................................................................... 49

Configuring a Host Name...................................................................................................................49

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

Accessing the S4810 and Remotely.............................................................................................49

Configure the Management Port IP Address............................................................................... 50

Configure a Management Route..................................................................................................50

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

Configuring the Enable Password.......................................................................................................51

Configuration File Management......................................................................................................... 51

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

Save the Running-Configuration..................................................................................................52

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

Viewing Files.................................................................................................................................. 53

Compressing Configuration Files................................................................................................. 54

Managing the File System................................................................................................................... 57

Enabling Software Features on Devices Using a Command Option................................................ 58

View Command History......................................................................................................................59

Upgrading Dell Networking OS.......................................................................................................... 59

Using Hashes to Validate Software Images........................................................................................59

Using HTTP for File Transfers.............................................................................................................60

4 Management............................................................................................................62

Configuring Privilege Levels............................................................................................................... 62

Creating a Custom Privilege Level................................................................................................62

Removing a Command from EXEC Mode................................................................................... 62

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 62

Allowing Access to CONFIGURATION Mode Commands.......................................................... 63

Allowing Access to the Following Modes.................................................................................... 63

Applying a Privilege Level to a Username.................................................................................... 65

Applying a Privilege Level to a Terminal Line...............................................................................65

Configuring Logging...........................................................................................................................65

Audit and Security Logs................................................................................................................ 66

Configuring Logging Format .......................................................................................................67

Display the Logging Buffer and the Logging Configuration....................................................... 68

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

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

Log Messages in the Internal Buffer...................................................................................................70

Configuration Task List for System Log Management.................................................................70

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

Sending System Messages to a Syslog Server.................................................................................... 71

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

Changing System Logging Settings.................................................................................................... 71

Display the Logging Buffer and the Logging Configuration..............................................................72

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

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

Enabling Timestamp on Syslog Messages..........................................................................................75

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

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

Enabling the FTP Server................................................................................................................ 76

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

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

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

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

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

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

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

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

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

Recovering from a Forgotten Password on the S4810 System.........................................................81

Recovering from a Forgotten Enable Password on the S4810 .................................................. 82

Recovering from a Failed Start on the S4810 System....................................................................... 83

Restoring the Factory Default Settings.............................................................................................. 84

S4810MXL Switch..........................................................................................................................84

Important Points to Remember....................................................................................................84

5 802.1ag......................................................................................................................85

Ethernet CFM...................................................................................................................................... 85

Maintenance Domains........................................................................................................................86

Maintenance Points............................................................................................................................ 86

Maintenance End Points..................................................................................................................... 87

Implementation Information..............................................................................................................88

Configuring the CFM.......................................................................................................................... 88

Related Configuration Tasks.........................................................................................................88

Enabling Ethernet CFM.......................................................................................................................88

Creating a Maintenance Domain....................................................................................................... 89

Creating a Maintenance Association..................................................................................................89

Create Maintenance Points................................................................................................................ 89

Creating a Maintenance End Point...............................................................................................90

Creating a Maintenance Intermediate Point................................................................................90

Displaying the MP Databases........................................................................................................ 91

Continuity Check Messages............................................................................................................... 92

Enabling CCM................................................................................................................................93

Enabling Cross-Checking............................................................................................................. 93

Sending Loopback Messages and Responses....................................................................................93

Sending Linktrace Messages and Responses.....................................................................................94

Caching Link Trace....................................................................................................................... 94

Enabling CFM SNMP Traps................................................................................................................. 95

Displaying Ethernet CFM Statistics..................................................................................................... 97

6 802.1X........................................................................................................................98

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

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

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

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

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

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

Configuring Request Identity Re-Transmissions.............................................................................104

Configuring a Quiet Period after a Failed Authentication......................................................... 105

Forcibly Authorizing or Unauthorizing a Port..................................................................................106

Re-Authenticating a Port.................................................................................................................. 107

Configuring Timeouts.......................................................................................................................108

Configuring Dynamic VLAN Assignment with Port Authentication................................................109

Guest and Authentication-Fail VLANs.............................................................................................. 110

Configuring a Guest VLAN...........................................................................................................111

Configuring an Authentication-Fail VLAN...................................................................................111

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

Memory (CAM)...........................................................................................................113

Optimizing CAM Utilization During the Attachment of ACLs to VLANs..........................................113

Guidelines for Configuring ACL VLAN groups................................................................................. 114

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.........................115

Configuring ACL VLAN Groups................................................................................................... 115

Configuring FP Blocks for VLAN Parameters..............................................................................116

Viewing CAM Usage...........................................................................................................................117

Allocating FP Blocks for VLAN Processes.........................................................................................118

8 Access Control Lists (ACLs)................................................................................120

IP Access Control Lists (ACLs)...........................................................................................................121

CAM Usage...................................................................................................................................121

Implementing ACLs on Dell Networking OS..............................................................................123

Important Points to Remember........................................................................................................124

Configuration Task List for Route Maps..................................................................................... 124

Configuring Match Routes.......................................................................................................... 127

Configuring Set Conditions........................................................................................................ 128

Configure a Route Map for Route Redistribution...................................................................... 129

Configure a Route Map for Route Tagging................................................................................130

Continue Clause..........................................................................................................................130

IP Fragment Handling........................................................................................................................131

IP Fragments ACL Examples........................................................................................................131

Layer 4 ACL Rules Examples....................................................................................................... 132

Configure a Standard IP ACL............................................................................................................ 133

Configuring a Standard IP ACL Filter.......................................................................................... 134

Configure an Extended IP ACL......................................................................................................... 135

Configuring Filters with a Sequence Number............................................................................ 135

Configuring Filters Without a Sequence Number......................................................................136

Configure Layer 2 and Layer 3 ACLs.................................................................................................137

Assign an IP ACL to an Interface.......................................................................................................138

Applying an IP ACL............................................................................................................................138

Counting ACL Hits.......................................................................................................................139

Configure Ingress ACLs.....................................................................................................................139

Configure Egress ACLs..................................................................................................................... 140

Applying Egress Layer 3 ACLs (Control-Plane)...........................................................................141

IP Prefix Lists...................................................................................................................................... 141

Implementation Information...................................................................................................... 142

Configuration Task List for Prefix Lists....................................................................................... 142

ACL Resequencing............................................................................................................................146

Resequencing an ACL or Prefix List............................................................................................147

Route Maps........................................................................................................................................148

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

Logging of ACL Processes................................................................................................................149

Guidelines for Configuring ACL Logging................................................................................... 150

Configuring ACL Logging........................................................................................................... 150

Flow-Based Monitoring Support for ACLs........................................................................................151

Behavior of Flow-Based Monitoring........................................................................................... 151

Enabling Flow-Based Monitoring............................................................................................... 153

9 Bidirectional Forwarding Detection (BFD).....................................................155

How BFD Works................................................................................................................................ 155

BFD Packet Format......................................................................................................................156

BFD Sessions................................................................................................................................158

BFD Three-Way Handshake........................................................................................................158

Session State Changes................................................................................................................ 159

Important Points to Remember....................................................................................................... 160

Configure BFD...................................................................................................................................160

Configure BFD for Physical Ports................................................................................................161

Configure BFD for Static Routes.................................................................................................164

Configure BFD for OSPF............................................................................................................. 166

Configure BFD for OSPFv3......................................................................................................... 169

Configure BFD for IS-IS...............................................................................................................170

Configure BFD for BGP............................................................................................................... 173

Configure BFD for VRRP............................................................................................................. 180

Configuring Protocol Liveness................................................................................................... 183

Troubleshooting BFD.................................................................................................................. 183

10 Border Gateway Protocol IPv4 (BGPv4)....................................................... 185

Autonomous Systems (AS)................................................................................................................185

Sessions and Peers............................................................................................................................ 187

Establish a Session.......................................................................................................................188

Route Reflectors................................................................................................................................188

BGP Attributes................................................................................................................................... 189

Best Path Selection Criteria........................................................................................................ 190

Weight..........................................................................................................................................192

Local Preference......................................................................................................................... 192

Multi-Exit Discriminators (MEDs)................................................................................................ 193

Origin........................................................................................................................................... 194

AS Path.........................................................................................................................................195

Next Hop......................................................................................................................................195

Multiprotocol BGP............................................................................................................................ 196

Implement BGP with Dell Networking OS.......................................................................................196

Additional Path (Add-Path) Support........................................................................................... 196

Advertise IGP Cost as MED for Redistributed Routes................................................................ 196

Ignore Router-ID for Some Best-Path Calculations.................................................................. 197

Four-Byte AS Numbers................................................................................................................197

AS4 Number Representation...................................................................................................... 198

AS Number Migration..................................................................................................................199

BGP4 Management Information Base (MIB).............................................................................. 201

Important Points to Remember..................................................................................................201

Configuration Information............................................................................................................... 202

BGP Configuration............................................................................................................................202

Enabling BGP...............................................................................................................................203

Configuring AS4 Number Representations................................................................................207

Configuring Peer Groups........................................................................................................... 209

Configuring BGP Fast Fall-Over..................................................................................................212

Configuring Passive Peering....................................................................................................... 213

Maintaining Existing AS Numbers During an AS Migration........................................................214

Allowing an AS Number to Appear in its Own AS Path..............................................................215

Enabling Graceful Restart............................................................................................................216

Enabling Neighbor Graceful Restart........................................................................................... 217

Filtering on an AS-Path Attribute................................................................................................218

Regular Expressions as Filters..................................................................................................... 219

Redistributing Routes.................................................................................................................. 221

Enabling Additional Paths............................................................................................................221

Configuring IP Community Lists................................................................................................ 222

Configuring an IP Extended Community List............................................................................ 224

Filtering Routes with Community Lists...................................................................................... 225

Manipulating the COMMUNITY Attribute...................................................................................225

Changing MED Attributes............................................................................................................227

Changing the LOCAL_PREFERENCE Attribute.......................................................................... 227

Changing the NEXT_HOP Attribute........................................................................................... 228

Changing the WEIGHT Attribute................................................................................................ 229

Enabling Multipath...................................................................................................................... 229

Filtering BGP Routes................................................................................................................... 229

Filtering BGP Routes Using Route Maps.....................................................................................231

Filtering BGP Routes Using AS-PATH Information....................................................................232

Configuring BGP Route Reflectors.............................................................................................232

Aggregating Routes.....................................................................................................................233

Configuring BGP Confederations.............................................................................................. 234

Enabling Route Flap Dampening................................................................................................234

Changing BGP Timers.................................................................................................................237

Enabling BGP Neighbor Soft-Reconfiguration.......................................................................... 237

Route Map Continue...................................................................................................................239

Enabling MBGP Configurations........................................................................................................239

BGP Regular Expression Optimization............................................................................................ 240

Debugging BGP................................................................................................................................ 240

Storing Last and Bad PDUs......................................................................................................... 241

Capturing PDUs...........................................................................................................................242

PDU Counters............................................................................................................................. 243

Sample Configurations.....................................................................................................................244

11 Content Addressable Memory (CAM)............................................................ 250

CAM Allocation................................................................................................................................. 250

Test CAM Usage................................................................................................................................252

View CAM-ACL Settings................................................................................................................... 252

View CAM Usage...............................................................................................................................254

CAM Optimization.............................................................................................................................255

Troubleshoot CAM Profiling.............................................................................................................255

CAM Profile Mismatches.............................................................................................................255

QoS CAM Region Limitation.......................................................................................................256

12 Control Plane Policing (CoPP)........................................................................ 257

Configure Control Plane Policing.................................................................................................... 258

Configuring CoPP for Protocols................................................................................................ 259

Configuring CoPP for CPU Queues........................................................................................... 261

CoPP for OSPFv3 Packets...........................................................................................................262

Configuring CoPP for OSPFv3....................................................................................................265

Show Commands....................................................................................................................... 266

13 Data Center Bridging (DCB).............................................................................268

Ethernet Enhancements in Data Center Bridging...........................................................................268

Priority-Based Flow Control.......................................................................................................269

Enhanced Transmission Selection............................................................................................. 270

Data Center Bridging Exchange Protocol (DCBx)......................................................................272

Data Center Bridging in a Traffic Flow....................................................................................... 273

Enabling Data Center Bridging......................................................................................................... 273

QoS dot1p Traffic Classification and Queue Assignment............................................................... 274

Configuring Priority-Based Flow Control........................................................................................ 275

Configuring Lossless Queues..................................................................................................... 277

Configuring the PFC Buffer in a Switch Stack............................................................................278

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

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

Creating a QoS DCB Output Policy........................................................................................... 280

Creating an ETS Priority Group.................................................................................................. 282

Applying an ETS Output Policy for a Priority Group to an Interface.........................................283

ETS Operation with DCBx.......................................................................................................... 284

Configuring Bandwidth Allocation for DCBx CIN..................................................................... 285

Applying DCB Policies in a Switch Stack..........................................................................................285

Applying DCB Policies with an ETS Configuration..........................................................................286

Configure a DCBx Operation........................................................................................................... 286

DCBx Operation..........................................................................................................................287

DCBx Port Roles..........................................................................................................................287

DCB Configuration Exchange.................................................................................................... 289

Configuration Source Election...................................................................................................289

Propagation of DCB Information...............................................................................................290

Auto-Detection and Manual Configuration of the DCBx Version............................................290

DCBx Example.............................................................................................................................291

DCBx Prerequisites and Restrictions.......................................................................................... 291

Configuring DCBx....................................................................................................................... 291

Verifying the DCB Configuration..................................................................................................... 296

PFC and ETS Configuration Examples............................................................................................. 307

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

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

Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 310

Hierarchical Scheduling in ETS Output Policies........................................................................ 310

Configuring DCB Maps and its Attributes.........................................................................................311

DCB Map: Configuration Procedure...........................................................................................311

Important Points to Remember..................................................................................................312

Applying a DCB Map on a Port................................................................................................... 312

Configuring PFC without a DCB Map.........................................................................................313

Configuring Lossless Queues..................................................................................................... 314

Priority-Based Flow Control Using Dynamic Buffer Method.......................................................... 315

Pause and Resume of Traffic...................................................................................................... 315

Buffer Sizes for Lossless or PFC Packets.................................................................................... 315

Interworking of DCB Map With DCB Buffer Threshold Settings.....................................................316

Configuring the Dynamic Buffer Method.........................................................................................317

14 Dynamic Host Configuration Protocol (DHCP).......................................... 319

DHCP Packet Format and Options...................................................................................................319

Assign an IP Address using DHCP.....................................................................................................321

Implementation Information............................................................................................................322

Configure the System to be a DHCP Server.................................................................................... 323

Configuring the Server for Automatic Address Allocation........................................................ 323

Specifying a Default Gateway.....................................................................................................325

Configure a Method of Hostname Resolution...........................................................................325

Using DNS for Address Resolution............................................................................................. 325

Using NetBIOS WINS for Address Resolution............................................................................ 325

Creating Manual Binding Entries................................................................................................ 326

Debugging the DHCP Server......................................................................................................326

Using DHCP Clear Commands.................................................................................................. 326

Configure the System to be a Relay Agent...................................................................................... 327

Configure the System to be a DHCP Client.....................................................................................329

Configuring the DHCP Client System........................................................................................329

DHCP Client on a Management Interface..................................................................................331

DHCP Client Operation with Other Features.............................................................................331

Configure the System for User Port Stacking (Option 230)............................................................332

Configure Secure DHCP...................................................................................................................333

Option 82.................................................................................................................................... 333

DHCP Snooping..........................................................................................................................334

Drop DHCP Packets on Snooped VLANs Only..........................................................................336

Dynamic ARP Inspection............................................................................................................ 336

Configuring Dynamic ARP Inspection........................................................................................337

Source Address Validation................................................................................................................338

Enabling IP Source Address Validation.......................................................................................338

DHCP MAC Source Address Validation......................................................................................339

Enabling IP+MAC Source Address Validation............................................................................ 339

15 Equal Cost Multi-Path (ECMP).........................................................................341

ECMP for Flow-Based Affinity...........................................................................................................341

Configuring the Hash Algorithm.................................................................................................341

Enabling Deterministic ECMP Next Hop.................................................................................... 341

Configuring the Hash Algorithm Seed....................................................................................... 342

Link Bundle Monitoring.................................................................................................................... 342

Managing ECMP Group Paths.................................................................................................... 343

Creating an ECMP Group Bundle...............................................................................................344

Modifying the ECMP Group Threshold......................................................................................344

16 FCoE Transit........................................................................................................ 346

Fibre Channel over Ethernet............................................................................................................ 346

Ensure Robustness in a Converged Ethernet Network...................................................................346

FIP Snooping on Ethernet Bridges...................................................................................................348

FIP Snooping in a Switch Stack........................................................................................................ 350

Using FIP Snooping...........................................................................................................................350

FIP Snooping Prerequisites.........................................................................................................350

Important Points to Remember..................................................................................................351

Enabling the FCoE Transit Feature..............................................................................................351

Enable FIP Snooping on VLANs..................................................................................................352

Configure the FC-MAP Value..................................................................................................... 352

Configure a Port for a Bridge-to-Bridge Link............................................................................ 352

Configure a Port for a Bridge-to-FCF Link................................................................................ 352

Impact on Other Software Features...........................................................................................352

FIP Snooping Restrictions...........................................................................................................353

Configuring FIP Snooping...........................................................................................................353

Displaying FIP Snooping Information.............................................................................................. 354

FCoE Transit Configuration Example...............................................................................................360

17 Enabling FIPS Cryptography............................................................................362

Configuration Tasks..........................................................................................................................362

Preparing the System........................................................................................................................362

Enabling FIPS Mode.......................................................................................................................... 363

Generating Host-Keys...................................................................................................................... 363

Monitoring FIPS Mode Status...........................................................................................................364

Disabling FIPS Mode......................................................................................................................... 364

18 Force10 Resilient Ring Protocol (FRRP)....................................................... 366

Protocol Overview............................................................................................................................366

Ring Status...................................................................................................................................367

Multiple FRRP Rings.................................................................................................................... 368

Important FRRP Points................................................................................................................368

Important FRRP Concepts..........................................................................................................368

Implementing FRRP.......................................................................................................................... 370

FRRP Configuration.......................................................................................................................... 370

Creating the FRRP Group........................................................................................................... 370

Configuring the Control VLAN....................................................................................................371

Configuring and Adding the Member VLANs.............................................................................372

Setting the FRRP Timers..............................................................................................................374

Clearing the FRRP Counters....................................................................................................... 374

Viewing the FRRP Configuration................................................................................................ 374

Viewing the FRRP Information....................................................................................................374

Troubleshooting FRRP...................................................................................................................... 375

Configuration Checks................................................................................................................. 375

Sample Configuration and Topology...............................................................................................375

19 GARP VLAN Registration Protocol (GVRP)...................................................378

Important Points to Remember....................................................................................................... 378

Configure GVRP................................................................................................................................379

Related Configuration Tasks.......................................................................................................379

Enabling GVRP Globally................................................................................................................... 380

Enabling GVRP on a Layer 2 Interface.............................................................................................380

Configure GVRP Registration...........................................................................................................380

Configure a GARP Timer...................................................................................................................381

RPM Redundancy..............................................................................................................................382

20 High Availability (HA)........................................................................................ 383

Component Redundancy.................................................................................................................383

Automatic and Manual Stack Unit Failover................................................................................ 383

Synchronization between Management and Standby Units.....................................................384

Forcing an Stack Unit Failover....................................................................................................384

Specifying an Auto-Failover Limit.............................................................................................. 385

Disabling Auto-Reboot............................................................................................................... 385

Manually Synchronizing Management and Standby Units........................................................385

Pre-Configuring a Stack Unit Slot....................................................................................................385

Removing a Provisioned Logical Stack Unit.................................................................................... 386

Hitless Behavior................................................................................................................................ 386

Graceful Restart................................................................................................................................ 387

Software Resiliency...........................................................................................................................387

Software Component Health Monitoring.................................................................................. 387

System Health Monitoring.......................................................................................................... 387

Failure and Event Logging.......................................................................................................... 387

Hot-Lock Behavior........................................................................................................................... 388

21 Internet Group Management Protocol (IGMP)...........................................389

IGMP Implementation Information..................................................................................................389

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

IGMP Version 2........................................................................................................................... 389

IGMP Version 3............................................................................................................................ 391

Configure IGMP................................................................................................................................ 394

Related Configuration Tasks...................................................................................................... 394

Viewing IGMP Enabled Interfaces.................................................................................................... 395

Selecting an IGMP Version............................................................................................................... 395

Viewing IGMP Groups...................................................................................................................... 396

Adjusting Timers............................................................................................................................... 396

Adjusting Query and Response Timers......................................................................................396

Adjusting the IGMP Querier Timeout Value...............................................................................397

Configuring a Static IGMP Group.....................................................................................................397

Enabling IGMP Immediate-Leave.................................................................................................... 398

IGMP Snooping.................................................................................................................................398

IGMP Snooping Implementation Information...........................................................................398

Configuring IGMP Snooping...................................................................................................... 398

Removing a Group-Port Association......................................................................................... 399

Disabling Multicast Flooding...................................................................................................... 399

Specifying a Port as Connected to a Multicast Router............................................................. 400

Configuring the Switch as Querier............................................................................................ 400

Fast Convergence after MSTP Topology Changes..........................................................................401

Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................401

Protocol Separation....................................................................................................................402

Enabling and Disabling Management Egress Interface Selection............................................ 403

Handling of Management Route Configuration........................................................................404

Handling of Switch-Initiated Traffic...........................................................................................404

Handling of Switch-Destined Traffic......................................................................................... 405

Handling of Transit Traffic (Traffic Separation)......................................................................... 406

Mapping of Management Applications and Traffic Type..........................................................406

Behavior of Various Applications for Switch-Initiated Traffic .................................................. 407

Behavior of Various Applications for Switch-Destined Traffic ................................................ 408

Interworking of EIS With Various Applications.......................................................................... 409

Designating a Multicast Router Interface.........................................................................................410

22 Interfaces.............................................................................................................. 411

Basic Interface Configuration........................................................................................................... 411

Advanced Interface Configuration....................................................................................................411

Interface Types..................................................................................................................................412

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

Enabling a Physical Interface............................................................................................................414

Physical Interfaces............................................................................................................................ 414

Configuration Task List for Physical Interfaces.......................................................................... 415

Overview of Layer Modes............................................................................................................415

Configuring Layer 2 (Data Link) Mode........................................................................................415

Configuring Layer 2 (Interface) Mode........................................................................................ 416

Configuring Layer 3 (Network) Mode.........................................................................................416

Configuring Layer 3 (Interface) Mode.........................................................................................417

Egress Interface Selection (EIS).........................................................................................................417

Important Points to Remember..................................................................................................418

Configuring EIS............................................................................................................................418

Management Interfaces....................................................................................................................418

Configuring Management Interfaces......................................................................................... 418

Configuring Management Interfaces on the S-Series............................................................... 419

VLAN Interfaces................................................................................................................................ 420

Loopback Interfaces..........................................................................................................................421

Null Interfaces................................................................................................................................... 421

Port Channel Interfaces.................................................................................................................... 421

Port Channel Definition and Standards......................................................................................422

Port Channel Benefits.................................................................................................................422

Port Channel Implementation....................................................................................................422

10/100/1000 Mbps Interfaces in Port Channels........................................................................423

Configuration Tasks for Port Channel Interfaces...................................................................... 423

Creating a Port Channel............................................................................................................. 424

Adding a Physical Interface to a Port Channel.......................................................................... 424

Reassigning an Interface to a New Port Channel......................................................................426

Configuring the Minimum Oper Up Links in a Port Channel.................................................... 427

..................................................................................................................................................... 427

Assigning an IP Address to a Port Channel................................................................................428

Deleting or Disabling a Port Channel.........................................................................................428

Load Balancing Through Port Channels....................................................................................428

Load-Balancing on the S- Series................................................................................................429

Changing the Hash Algorithm....................................................................................................429

Bulk Configuration............................................................................................................................ 431

Interface Range........................................................................................................................... 431

Bulk Configuration Examples......................................................................................................431

Defining Interface Range Macros.....................................................................................................433

Define the Interface Range.........................................................................................................433

Choosing an Interface-Range Macro........................................................................................ 433

Monitoring and Maintaining Interfaces............................................................................................434

Maintenance Using TDR............................................................................................................. 435

Splitting QSFP Ports to SFP+ Ports.................................................................................................. 435

Link Dampening................................................................................................................................436

Important Points to Remember..................................................................................................437

Enabling Link Dampening...........................................................................................................437

Link Bundle Monitoring.................................................................................................................... 438

Using Ethernet Pause Frames for Flow Control.............................................................................. 439

Threshold Settings......................................................................................................................440

Enabling Pause Frames...............................................................................................................440

Configure the MTU Size on an Interface......................................................................................... 441

Port-Pipes......................................................................................................................................... 442

Auto-Negotiation on Ethernet Interfaces........................................................................................442

Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................442

Set Auto-Negotiation Options................................................................................................... 444

View Advanced Interface Information.............................................................................................444

Configuring the Interface Sampling Size................................................................................... 445

Dynamic Counters............................................................................................................................447

Clearing Interface Counters....................................................................................................... 447

Enhanced Validation of Interface Ranges....................................................................................... 448

23 Internet Protocol Security (IPSec).................................................................449

Configuring IPSec ............................................................................................................................450

24 IPv4 Routing........................................................................................................ 451

IP Addresses.......................................................................................................................................451

Implementation Information...................................................................................................... 451

Configuration Tasks for IP Addresses...............................................................................................451

Assigning IP Addresses to an Interface............................................................................................ 452

Configuring Static Routes.................................................................................................................453

Configure Static Routes for the Management Interface.................................................................454

IPv4 Path MTU Discovery Overview.................................................................................................455

Using the Configured Source IP Address in ICMP Messages..........................................................456

Configuring the ICMP Source Interface.....................................................................................456

Configuring the Duration to Establish a TCP Connection..............................................................456

Enabling Directed Broadcast............................................................................................................ 457

Resolution of Host Names................................................................................................................457

Enabling Dynamic Resolution of Host Names.................................................................................457

Specifying the Local System Domain and a List of Domains..........................................................458

Configuring DNS with Traceroute................................................................................................... 459

ARP.................................................................................................................................................... 459

Configuration Tasks for ARP............................................................................................................ 460

Configuring Static ARP Entries.........................................................................................................460

Enabling Proxy ARP...........................................................................................................................461

Clearing ARP Cache..........................................................................................................................461

ARP Learning via Gratuitous ARP......................................................................................................461

Enabling ARP Learning via Gratuitous ARP......................................................................................462

ARP Learning via ARP Request......................................................................................................... 462

Configuring ARP Retries................................................................................................................... 463

ICMP..................................................................................................................................................464

Configuration Tasks for ICMP..........................................................................................................464

Enabling ICMP Unreachable Messages........................................................................................... 464

UDP Helper....................................................................................................................................... 464

Configure UDP Helper................................................................................................................464

Important Points to Remember................................................................................................. 465

Enabling UDP Helper........................................................................................................................465

Configuring a Broadcast Address.....................................................................................................465

Configurations Using UDP Helper................................................................................................... 466

UDP Helper with Broadcast-All Addresses......................................................................................466

UDP Helper with Subnet Broadcast Addresses............................................................................... 467

UDP Helper with Configured Broadcast Addresses........................................................................468

UDP Helper with No Configured Broadcast Addresses..................................................................468

Troubleshooting UDP Helper...........................................................................................................468

25 IPv6 Routing........................................................................................................470

Protocol Overview............................................................................................................................470

Extended Address Space............................................................................................................ 470

Stateless Autoconfiguration....................................................................................................... 470

IPv6 Headers................................................................................................................................471

IPv6 Header Fields.......................................................................................................................472

Extension Header Fields..............................................................................................................473

Addressing...................................................................................................................................474

Implementing IPv6 with Dell Networking OS..................................................................................476

ICMPv6.............................................................................................................................................. 478

Path MTU Discovery......................................................................................................................... 478

IPv6 Neighbor Discovery..................................................................................................................479

IPv6 Neighbor Discovery of MTU Packets.................................................................................480

Configuration Task List for IPv6 RDNSS.......................................................................................... 480

Configuring the IPv6 Recursive DNS Server..............................................................................480

Debugging IPv6 RDNSS Information Sent to the Host .............................................................481

Displaying IPv6 RDNSS Information...........................................................................................482

Secure Shell (SSH) Over an IPv6 Transport......................................................................................483

Configuration Tasks for IPv6............................................................................................................483

Adjusting Your CAM-Profile....................................................................................................... 483

Assigning an IPv6 Address to an Interface.................................................................................484

Assigning a Static IPv6 Route..................................................................................................... 484

Configuring Telnet with IPv6......................................................................................................485

SNMP over IPv6...........................................................................................................................485

Showing IPv6 Information..........................................................................................................486

Showing an IPv6 Interface..........................................................................................................486

Showing IPv6 Routes.................................................................................................................. 487

Showing the Running-Configuration for an Interface..............................................................488

Clearing IPv6 Routes.................................................................................................................. 489

26 iSCSI Optimization............................................................................................490

iSCSI Optimization Overview...........................................................................................................490

Monitoring iSCSI Traffic Flows................................................................................................... 492

Application of Quality of Service to iSCSI Traffic Flows............................................................492

Information Monitored in iSCSI Traffic Flows............................................................................492

Detection and Auto-Configuration for Dell EqualLogic Arrays................................................ 493

Configuring Detection and Ports for Dell Compellent Arrays..................................................494

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................494

Enable and Disable iSCSI Optimization..................................................................................... 494

Default iSCSI Optimization Values...................................................................................................495

iSCSI Optimization Prerequisites..................................................................................................... 496

Configuring iSCSI Optimization.......................................................................................................496

Displaying iSCSI Optimization Information..................................................................................... 498

27 Intermediate System to Intermediate System............................................500

IS-IS Protocol Overview...................................................................................................................500

IS-IS Addressing................................................................................................................................500

Multi-Topology IS-IS.........................................................................................................................501

Transition Mode.......................................................................................................................... 502

Interface Support........................................................................................................................ 502

Adjacencies................................................................................................................................. 502

Graceful Restart................................................................................................................................ 502

Timers..........................................................................................................................................503

Implementation Information............................................................................................................503

Configuration Information............................................................................................................... 504

Configuration Tasks for IS-IS..................................................................................................... 504

Configuring the Distance of a Route..........................................................................................513

Changing the IS-Type................................................................................................................. 513

Redistributing IPv4 Routes..........................................................................................................516

Redistributing IPv6 Routes.......................................................................................................... 517

Configuring Authentication Passwords......................................................................................518

Setting the Overload Bit.............................................................................................................. 519

Debugging IS-IS...........................................................................................................................519

IS-IS Metric Styles............................................................................................................................. 520

Configure Metric Values....................................................................................................................521

Maximum Values in the Routing Table.......................................................................................521

Change the IS-IS Metric Style in One Level Only.......................................................................521

Leaks from One Level to Another.............................................................................................. 523

Sample Configurations..................................................................................................................... 524

28 Link Aggregation Control Protocol (LACP)................................................. 527

Introduction to Dynamic LAGs and LACP........................................................................................527

Important Points to Remember..................................................................................................527

LACP Modes................................................................................................................................528

Configuring LACP Commands...................................................................................................528

LACP Configuration Tasks................................................................................................................529

Creating a LAG............................................................................................................................ 529

Configuring the LAG Interfaces as Dynamic............................................................................. 530

Setting the LACP Long Timeout.................................................................................................530

Monitoring and Debugging LACP...............................................................................................531

Shared LAG State Tracking................................................................................................................531

Configuring Shared LAG State Tracking.....................................................................................532

Important Points about Shared LAG State Tracking..................................................................533

LACP Basic Configuration Example................................................................................................. 534

Configure a LAG on ALPHA........................................................................................................ 534

29 Layer 2...................................................................................................................542

Manage the MAC Address Table...................................................................................................... 542

Clearing the MAC Address Table................................................................................................542

Setting the Aging Time for Dynamic Entries..............................................................................542

Configuring a Static MAC Address............................................................................................. 543

Displaying the MAC Address Table.............................................................................................543

MAC Learning Limit...........................................................................................................................543

Setting the MAC Learning Limit..................................................................................................544

mac learning-limit Dynamic.......................................................................................................544

mac learning-limit mac-address-sticky.....................................................................................545

mac learning-limit station-move............................................................................................... 545

mac learning-limit no-station-move.........................................................................................545

Learning Limit Violation Actions.................................................................................................546

Setting Station Move Violation Actions......................................................................................546

Recovering from Learning Limit and Station Move Violations..................................................547

NIC Teaming..................................................................................................................................... 547

Configure Redundant Pairs.............................................................................................................. 548

Important Points about Configuring Redundant Pairs..............................................................550

Far-End Failure Detection.................................................................................................................551

FEFD State Changes....................................................................................................................552

Configuring FEFD........................................................................................................................ 553

Enabling FEFD on an Interface................................................................................................... 554

Debugging FEFD......................................................................................................................... 555

30 Link Layer Discovery Protocol (LLDP)...........................................................557

802.1AB (LLDP) Overview................................................................................................................. 557

Protocol Data Units.....................................................................................................................557

Optional TLVs....................................................................................................................................558

Management TLVs...................................................................................................................... 558

TIA-1057 (LLDP-MED) Overview......................................................................................................560

TIA Organizationally Specific TLVs............................................................................................. 561

Configure LLDP.................................................................................................................................565

Related Configuration Tasks.......................................................................................................565

Important Points to Remember................................................................................................. 566

LLDP Compatibility..................................................................................................................... 566

CONFIGURATION versus INTERFACE Configurations....................................................................566

Enabling LLDP................................................................................................................................... 567

Disabling and Undoing LLDP......................................................................................................567

Enabling LLDP on Management Ports............................................................................................. 567

Disabling and Undoing LLDP on Management Ports................................................................ 567

Advertising TLVs................................................................................................................................568

Viewing the LLDP Configuration......................................................................................................569

Viewing Information Advertised by Adjacent LLDP Agents.............................................................570

Configuring LLDPDU Intervals.......................................................................................................... 571

Configuring Transmit and Receive Mode.........................................................................................571

Configuring a Time to Live............................................................................................................... 572

Debugging LLDP............................................................................................................................... 573

Relevant Management Objects........................................................................................................ 574

31 Microsoft Network Load Balancing...............................................................580

NLB Unicast Mode Scenario.............................................................................................................580

NLB Multicast Mode Scenario...........................................................................................................581

Limitations With Enabling NLB on Switches.................................................................................... 581

Benefits and Working of Microsoft Clustering.................................................................................581

Enable and Disable VLAN Flooding .................................................................................................582

Configuring a Switch for NLB ..........................................................................................................582

..................................................................................................................................................... 582

32 Multicast Source Discovery Protocol (MSDP).............................................583

Protocol Overview............................................................................................................................583

Anycast RP.........................................................................................................................................585

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

Configure Multicast Source Discovery Protocol............................................................................. 585

Related Configuration Tasks.......................................................................................................585

Enable MSDP.....................................................................................................................................589

Manage the Source-Active Cache...................................................................................................590

Viewing the Source-Active Cache............................................................................................. 590

Limiting the Source-Active Cache..............................................................................................591

Clearing the Source-Active Cache............................................................................................. 591

Enabling the Rejected Source-Active Cache............................................................................. 591

Accept Source-Active Messages that Fail the RFP Check...............................................................591

Specifying Source-Active Messages................................................................................................ 595

Limiting the Source-Active Messages from a Peer......................................................................... 596

Preventing MSDP from Caching a Local Source.............................................................................596

Preventing MSDP from Caching a Remote Source.........................................................................597

Preventing MSDP from Advertising a Local Source........................................................................ 598

Logging Changes in Peership States................................................................................................599

Terminating a Peership.....................................................................................................................599

Clearing Peer Statistics..................................................................................................................... 599

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