Dell PowerSwitch S6000 ON User manual

Dell Configuration Guide for the S6000–ON

System

9.8(0.0)

Notes, cautions, and warnings

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

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

how to avoid the problem.

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2015 - 05

Rev. A00

Contents

1 About this Guide................................................................................................. 34

Audience..............................................................................................................................................34

Conventions........................................................................................................................................ 34

Related Documents............................................................................................................................ 34

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

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

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

Navigating CLI Modes................................................................................................................... 38

The do Command............................................................................................................................... 41

Undoing Commands...........................................................................................................................42

Obtaining Help.................................................................................................................................... 43

Entering and Editing Commands....................................................................................................... 43

Command History...............................................................................................................................44

Filtering show Command Outputs.....................................................................................................44

Multiple Users in Configuration Mode............................................................................................... 46

3 Getting Started....................................................................................................47

Console Access................................................................................................................................... 47

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

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

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

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

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

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

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

Mounting an NFS File System....................................................................................................... 52

Save the Running-Configuration..................................................................................................54

Configure the Overload Bit for a Startup Scenario...................................................................... 55

Viewing Files.................................................................................................................................. 55

Managing the File System...................................................................................................................56

View Command History......................................................................................................................57

Upgrading Dell Networking OS.......................................................................................................... 57

Using HTTP for File Transfers..............................................................................................................57

3

Using Hashes to Validate Software Images........................................................................................58

4 Management....................................................................................................... 60

Configuring Privilege Levels............................................................................................................... 60

Creating a Custom Privilege Level............................................................................................... 60

Removing a Command from EXEC Mode................................................................................... 60

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 61

Allowing Access to CONFIGURATION Mode Commands...........................................................61

Allowing Access to the Following Modes.....................................................................................61

Applying a Privilege Level to a Username.................................................................................... 63

Applying a Privilege Level to a Terminal Line...............................................................................63

Configuring Logging...........................................................................................................................63

Audit and Security Logs................................................................................................................ 64

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

Setting Up a Secure Connection to a Syslog Server....................................................................67

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

Configuration Task List for System Log Management................................................................ 68

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

Sending System Messages to a Syslog Server................................................................................... 69

Configuring a UNIX System as a Syslog Server............................................................................69

Track Login Activity.............................................................................................................................69

Restrictions for Tracking Login Activity........................................................................................69

Configuring Login Activity Tracking............................................................................................. 70

Display Login Statistics..................................................................................................................70

Limit Concurrent Login Sessions........................................................................................................ 71

Restrictions for Limiting the Number of Concurrent Sessions.................................................... 71

Configuring Concurrent Session Limit..........................................................................................71

Enabling the System to Clear Existing Sessions........................................................................... 72

Changing System Logging Settings....................................................................................................73

Display the Logging Buffer and the Logging Configuration..............................................................74

Configuring a UNIX Logging Facility Level.........................................................................................74

Synchronizing Log Messages..............................................................................................................76

Enabling Timestamp on Syslog Messages..........................................................................................76

File Transfer Services........................................................................................................................... 77

Configuration Task List for File Transfer Services........................................................................ 77

Enabling the FTP Server.................................................................................................................77

Configuring FTP Server Parameters..............................................................................................78

Configuring FTP Client Parameters.............................................................................................. 78

Terminal Lines..................................................................................................................................... 79

Denying and Permitting Access to a Terminal Line..................................................................... 79

Configuring Login Authentication for Terminal Lines.................................................................80

Setting Time Out of EXEC Privilege Mode..........................................................................................81

4

Using Telnet to get to Another Network Device............................................................................... 82

Lock CONFIGURATION Mode............................................................................................................83

Viewing the Configuration Lock Status........................................................................................83

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

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

Restoring Factory Default Environment Variables.......................................................................84

5 802.1X................................................................................................................... 87

The Port-Authentication Process.......................................................................................................88

EAP over RADIUS...........................................................................................................................90

Configuring 802.1X.............................................................................................................................90

Related Configuration Tasks.........................................................................................................90

Important Points to Remember..........................................................................................................91

Enabling 802.1X...................................................................................................................................92

Configuring Request Identity Re-Transmissions............................................................................... 93

Configuring a Quiet Period after a Failed Authentication........................................................... 94

Forcibly Authorizing or Unauthorizing a Port.................................................................................... 95

Re-Authenticating a Port....................................................................................................................96

Configuring Timeouts......................................................................................................................... 97

Configuring Dynamic VLAN Assignment with Port Authentication..................................................98

Guest and Authentication-Fail VLANs................................................................................................99

Configuring a Guest VLAN..........................................................................................................100

Configuring an Authentication-Fail VLAN..................................................................................100

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

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

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

Implementing ACLs on Dell Networking OS............................................................................. 104

Important Points to Remember........................................................................................................105

Configuration Task List for Route Maps.....................................................................................105

Configuring Match Routes..........................................................................................................108

Configuring Set Conditions........................................................................................................ 109

Configure a Route Map for Route Redistribution....................................................................... 111

Configure a Route Map for Route Tagging.................................................................................111

Continue Clause.......................................................................................................................... 112

IP Fragment Handling........................................................................................................................112

IP Fragments ACL Examples........................................................................................................113

Layer 4 ACL Rules Examples........................................................................................................113

Configure a Standard IP ACL.............................................................................................................114

Configuring a Standard IP ACL Filter...........................................................................................115

Configure an Extended IP ACL..........................................................................................................116

Configuring Filters with a Sequence Number............................................................................ 116

5

Configuring Filters Without a Sequence Number...................................................................... 118

Configure Layer 2 and Layer 3 ACLs.................................................................................................119

Assign an IP ACL to an Interface.......................................................................................................119

Applying an IP ACL............................................................................................................................120

Counting ACL Hits....................................................................................................................... 121

Configure Ingress ACLs..................................................................................................................... 121

Configure Egress ACLs......................................................................................................................122

Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 122

IP Prefix Lists......................................................................................................................................123

Implementation Information.......................................................................................................123

Configuration Task List for Prefix Lists....................................................................................... 123

ACL Resequencing............................................................................................................................ 127

Resequencing an ACL or Prefix List............................................................................................128

Route Maps........................................................................................................................................129

Implementation Information...................................................................................................... 130

Flow-Based Monitoring Support for ACLs.......................................................................................130

Behavior of Flow-Based Monitoring...........................................................................................130

Enabling Flow-Based Monitoring............................................................................................... 132

7 Bidirectional Forwarding Detection (BFD)...................................................134

How BFD Works................................................................................................................................ 134

BFD Packet Format......................................................................................................................135

BFD Sessions................................................................................................................................137

BFD Three-Way Handshake........................................................................................................ 137

Session State Changes................................................................................................................ 138

Important Points to Remember........................................................................................................139

Configure BFD...................................................................................................................................139

Configure BFD for Physical Ports............................................................................................... 140

Configure BFD for Static Routes.................................................................................................143

Configure BFD for OSPF............................................................................................................. 145

Configure BFD for OSPFv3......................................................................................................... 148

Configure BFD for IS-IS...............................................................................................................149

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

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

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

Troubleshooting BFD.................................................................................................................. 162

8 Border Gateway Protocol IPv4 (BGPv4)...................................................... 164

Autonomous Systems (AS)................................................................................................................164

Sessions and Peers............................................................................................................................166

Establish a Session.......................................................................................................................167

Route Reflectors................................................................................................................................168

6

BGP Attributes................................................................................................................................... 169

Best Path Selection Criteria........................................................................................................ 169

Weight...........................................................................................................................................171

Local Preference..........................................................................................................................172

Multi-Exit Discriminators (MEDs)................................................................................................ 172

Origin............................................................................................................................................173

AS Path......................................................................................................................................... 174

Next Hop......................................................................................................................................174

Multiprotocol BGP.............................................................................................................................175

Implement BGP with Dell Networking OS....................................................................................... 175

Additional Path (Add-Path) Support............................................................................................175

Advertise IGP Cost as MED for Redistributed Routes................................................................ 176

Ignore Router-ID for Some Best-Path Calculations.................................................................. 177

Four-Byte AS Numbers................................................................................................................177

AS4 Number Representation.......................................................................................................177

AS Number Migration.................................................................................................................. 179

BGP4 Management Information Base (MIB)...............................................................................181

Important Points to Remember.................................................................................................. 181

Configuration Information................................................................................................................182

BGP Configuration............................................................................................................................ 182

Enabling BGP...............................................................................................................................183

Configuring AS4 Number Representations................................................................................ 187

Configuring Peer Groups............................................................................................................189

Configuring BGP Fast Fall-Over..................................................................................................191

Configuring Passive Peering....................................................................................................... 193

Maintaining Existing AS Numbers During an AS Migration........................................................194

Allowing an AS Number to Appear in its Own AS Path..............................................................195

Enabling Graceful Restart........................................................................................................... 196

Enabling Neighbor Graceful Restart........................................................................................... 197

Filtering on an AS-Path Attribute................................................................................................198

Regular Expressions as Filters..................................................................................................... 199

Redistributing Routes..................................................................................................................201

Enabling Additional Paths........................................................................................................... 201

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

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

Filtering Routes with Community Lists......................................................................................204

Manipulating the COMMUNITY Attribute.................................................................................. 205

Changing MED Attributes........................................................................................................... 207

Changing the LOCAL_PREFERENCE Attribute.......................................................................... 207

Changing the NEXT_HOP Attribute...........................................................................................208

Changing the WEIGHT Attribute................................................................................................208

Enabling Multipath......................................................................................................................209

7

Filtering BGP Routes...................................................................................................................209

Filtering BGP Routes Using Route Maps.....................................................................................211

Filtering BGP Routes Using AS-PATH Information.....................................................................211

Configuring BGP Route Reflectors.............................................................................................212

Aggregating Routes.....................................................................................................................213

Configuring BGP Confederations...............................................................................................213

Enabling Route Flap Dampening................................................................................................ 214

Changing BGP Timers................................................................................................................. 217

Enabling BGP Neighbor Soft-Reconfiguration...........................................................................217

Route Map Continue...................................................................................................................218

Enabling MBGP Configurations........................................................................................................ 219

BGP Regular Expression Optimization.............................................................................................220

Debugging BGP................................................................................................................................ 220

Storing Last and Bad PDUs..........................................................................................................221

Capturing PDUs...........................................................................................................................222

PDU Counters............................................................................................................................. 223

Sample Configurations..................................................................................................................... 224

9 Content Addressable Memory (CAM)...........................................................230

CAM Allocation................................................................................................................................. 230

Test CAM Usage................................................................................................................................232

View CAM Profiles.............................................................................................................................232

View CAM-ACL Settings................................................................................................................... 233

View CAM Usage...............................................................................................................................235

CAM Optimization............................................................................................................................ 236

Troubleshoot CAM Profiling.............................................................................................................236

CAM Profile Mismatches.............................................................................................................236

QoS CAM Region Limitation.......................................................................................................236

Syslog Error When the Table is Full............................................................................................ 237

Syslog Warning Upon 90 Percent Utilization of CAM............................................................... 237

Syslog Warning for Discrepancies Between Configured Extended Prefixes............................ 237

Unified Forwarding Table (UFT) Modes............................................................................................237

Configuring UFT Modes..............................................................................................................238

10 Control Plane Policing (CoPP).....................................................................239

Configure Control Plane Policing....................................................................................................240

Configuring CoPP for Protocols.................................................................................................241

Configuring CoPP for CPU Queues...........................................................................................243

Show Commands....................................................................................................................... 244

11 Data Center Bridging (DCB)..........................................................................246

Ethernet Enhancements in Data Center Bridging........................................................................... 246

8

Priority-Based Flow Control....................................................................................................... 247

Enhanced Transmission Selection............................................................................................. 249

Data Center Bridging Exchange Protocol (DCBx)..................................................................... 250

Data Center Bridging in a Traffic Flow.......................................................................................250

Enabling Data Center Bridging......................................................................................................... 251

DCB Maps and its Attributes........................................................................................................251

Data Center Bridging: Default Configuration.................................................................................. 252

Configuring Priority-Based Flow Control........................................................................................ 253

Configuring Lossless Queues.....................................................................................................254

Configuring PFC in a DCB Map........................................................................................................ 255

PFC Configuration Notes............................................................................................................255

PFC Prerequisites and Restrictions.............................................................................................257

Applying a DCB Map on a Port......................................................................................................... 257

Configuring PFC without a DCB Map.............................................................................................. 257

Configuring Lossless QueuesExample:......................................................................................258

Priority-Based Flow Control Using Dynamic Buffer Method......................................................... 260

Pause and Resume of Traffic......................................................................................................260

Buffer Sizes for Lossless or PFC Packets................................................................................... 260

Behavior of Tagged Packets............................................................................................................. 261

Configuration Example for DSCP and PFC Priorities...................................................................... 262

SNMP Support for PFC and Buffer Statistics Tracking.....................................................................262

Performing PFC Using DSCP Bits Instead of 802.1p Bits................................................................ 263

PFC and ETS Configuration Examples.............................................................................................264

Using PFC to Manage Converged Ethernet Traffic......................................................................... 264

Operations on Untagged Packets....................................................................................................264

Generation of PFC for a Priority for Untagged Packets.................................................................. 265

Configure Enhanced Transmission Selection..................................................................................265

ETS Prerequisites and Restrictions............................................................................................. 265

Creating an ETS Priority Group.................................................................................................. 266

ETS Operation with DCBx...........................................................................................................267

Configuring Bandwidth Allocation for DCBx CIN..................................................................... 268

Configuring ETS in a DCB Map.................................................................................................. 269

Hierarchical Scheduling in ETS Output Policies.............................................................................. 270

Using ETS to Manage Converged Ethernet Traffic.......................................................................... 271

Applying DCB Policies in a Switch Stack.......................................................................................... 271

Configure a DCBx Operation............................................................................................................271

DCBx Operation.......................................................................................................................... 272

DCBx Port Roles..........................................................................................................................272

DCB Configuration Exchange.................................................................................................... 274

Configuration Source Election................................................................................................... 274

Propagation of DCB Information................................................................................................275

Auto-Detection and Manual Configuration of the DCBx Version............................................ 275

9

DCBx Example.............................................................................................................................276

DCBx Prerequisites and Restrictions.......................................................................................... 276

Configuring DCBx....................................................................................................................... 277

Verifying the DCB Configuration......................................................................................................281

QoS dot1p Traffic Classification and Queue Assignment...............................................................292

Configuring the Dynamic Buffer Method........................................................................................ 293

Sample DCB Configuration..............................................................................................................294

PFC and ETS Configuration Command Examples.....................................................................295

12 Dynamic Host Configuration Protocol (DHCP)........................................296

DHCP Packet Format and Options.................................................................................................. 296

Assign an IP Address using DHCP....................................................................................................298

Implementation Information............................................................................................................299

Configure the System to be a DHCP Server....................................................................................300

Configuring the Server for Automatic Address Allocation........................................................300

Specifying a Default Gateway.....................................................................................................302

Configure a Method of Hostname Resolution.......................................................................... 302

Using DNS for Address Resolution.............................................................................................302

Using NetBIOS WINS for Address Resolution............................................................................302

Creating Manual Binding Entries................................................................................................303

Debugging the DHCP Server......................................................................................................303

Using DHCP Clear Commands.................................................................................................. 303

Configure the System to be a DHCP Client.................................................................................... 304

Configuring the DHCP Client System........................................................................................304

DHCP Client on a Management Interface.................................................................................306

DHCP Client Operation with Other Features.............................................................................307

Configure the System for User Port Stacking (Option 230)........................................................... 308

Configure Secure DHCP.................................................................................................................. 308

Option 82....................................................................................................................................308

DHCP Snooping..........................................................................................................................309

Drop DHCP Packets on Snooped VLANs Only.......................................................................... 313

Dynamic ARP Inspection.............................................................................................................313

Configuring Dynamic ARP Inspection........................................................................................314

Source Address Validation................................................................................................................ 315

Enabling IP Source Address Validation.......................................................................................316

DHCP MAC Source Address Validation...................................................................................... 316

Enabling IP+MAC Source Address Validation.............................................................................317

Viewing the Number of SAV Dropped Packets.......................................................................... 317

Clearing the Number of SAV Dropped Packets......................................................................... 318

13 Equal Cost Multi-Path (ECMP)......................................................................319

ECMP for Flow-Based Affinity...........................................................................................................319

10

Configuring the Hash Algorithm.................................................................................................319

Enabling Deterministic ECMP Next Hop.................................................................................... 319

Configuring the Hash Algorithm Seed.......................................................................................320

Link Bundle Monitoring.................................................................................................................... 320

Managing ECMP Group Paths.....................................................................................................321

Creating an ECMP Group Bundle...............................................................................................322

Modifying the ECMP Group Threshold...................................................................................... 322

Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table.................323

Support for ECMP in host table..................................................................................................323

Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ..................................................324

14 FCoE Transit.................................................................................................... 325

Fibre Channel over Ethernet.............................................................................................................325

Ensure Robustness in a Converged Ethernet Network................................................................... 325

FIP Snooping on Ethernet Bridges................................................................................................... 327

FIP Snooping in a Switch Stack........................................................................................................ 329

Using FIP Snooping...........................................................................................................................329

FIP Snooping Prerequisites.........................................................................................................329

Important Points to Remember................................................................................................. 330

Enabling the FCoE Transit Feature..............................................................................................331

Enable FIP Snooping on VLANs.................................................................................................. 331

Configure the FC-MAP Value......................................................................................................331

Configure a Port for a Bridge-to-Bridge Link............................................................................ 332

Configure a Port for a Bridge-to-FCF Link................................................................................ 332

Impact on Other Software Features...........................................................................................332

FIP Snooping Restrictions...........................................................................................................333

Configuring FIP Snooping...........................................................................................................333

Displaying FIP Snooping Information.............................................................................................. 334

FCoE Transit Configuration Example...............................................................................................340

15 Flex Hash and Optimized Boot-Up............................................................. 342

Flex Hash Capability Overview......................................................................................................... 342

Configuring the Flex Hash Mechanism............................................................................................342

Configuring Fast Boot and LACP Fast Switchover.......................................................................... 343

Optimizing the Boot Time................................................................................................................343

Booting Process When Optimized Boot Time Mechanism is Enabled.....................................344

Guidelines for Configuring Optimized Booting Mechanism.................................................... 344

Interoperation of Applications with Fast Boot and System States..................................................345

LACP and IPv4 Routing...............................................................................................................345

LACP and IPv6 Routing...............................................................................................................346

BGP Graceful Restart.................................................................................................................. 346

Cold Boot Caused by Power Cycling the System..................................................................... 346

11

Unexpected Reload of the System.............................................................................................347

Software Upgrade....................................................................................................................... 347

LACP Fast Switchover................................................................................................................. 347

Changes to BGP Multipath......................................................................................................... 347

Delayed Installation of ECMP Routes Into BGP.........................................................................347

RDMA Over Converged Ethernet (RoCE) Overview........................................................................348

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.............................................................349

16 Force10 Resilient Ring Protocol (FRRP).....................................................350

Protocol Overview............................................................................................................................350

Ring Status................................................................................................................................... 351

Multiple FRRP Rings.................................................................................................................... 352

Important FRRP Points................................................................................................................352

Important FRRP Concepts.......................................................................................................... 353

Implementing FRRP.......................................................................................................................... 354

FRRP Configuration.......................................................................................................................... 354

Creating the FRRP Group............................................................................................................355

Configuring the Control VLAN................................................................................................... 355

Configuring and Adding the Member VLANs.............................................................................356

Setting the FRRP Timers............................................................................................................. 358

Clearing the FRRP Counters.......................................................................................................358

Viewing the FRRP Configuration................................................................................................358

Viewing the FRRP Information................................................................................................... 358

Troubleshooting FRRP......................................................................................................................359

Configuration Checks.................................................................................................................359

Sample Configuration and Topology...............................................................................................359

17 GARP VLAN Registration Protocol (GVRP).................................................361

Important Points to Remember........................................................................................................361

Configure GVRP................................................................................................................................362

Related Configuration Tasks.......................................................................................................363

Enabling GVRP Globally....................................................................................................................363

Enabling GVRP on a Layer 2 Interface............................................................................................. 363

Configure GVRP Registration...........................................................................................................364

Configure a GARP Timer.................................................................................................................. 364

18 Internet Group Management Protocol (IGMP).........................................366

IGMP Implementation Information..................................................................................................366

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

IGMP Version 2............................................................................................................................366

IGMP Version 3............................................................................................................................368

Configure IGMP.................................................................................................................................371

12

Related Configuration Tasks....................................................................................................... 371

Viewing IGMP Enabled Interfaces.................................................................................................... 372

Selecting an IGMP Version................................................................................................................372

Viewing IGMP Groups.......................................................................................................................373

Adjusting Timers................................................................................................................................373

Adjusting Query and Response Timers...................................................................................... 373

Enabling IGMP Immediate-Leave.....................................................................................................374

IGMP Snooping................................................................................................................................. 374

IGMP Snooping Implementation Information........................................................................... 375

Configuring IGMP Snooping.......................................................................................................375

Removing a Group-Port Association..........................................................................................375

Disabling Multicast Flooding.......................................................................................................376

Specifying a Port as Connected to a Multicast Router..............................................................376

Configuring the Switch as Querier.............................................................................................376

Fast Convergence after MSTP Topology Changes..........................................................................377

Egress Interface Selection (EIS) for HTTP and IGMP Applications.................................................. 377

Protocol Separation.................................................................................................................... 378

Enabling and Disabling Management Egress Interface Selection.............................................379

Handling of Management Route Configuration........................................................................380

Handling of Switch-Initiated Traffic........................................................................................... 381

Handling of Switch-Destined Traffic..........................................................................................382

Handling of Transit Traffic (Traffic Separation)..........................................................................382

Mapping of Management Applications and Traffic Type.......................................................... 383

Behavior of Various Applications for Switch-Initiated Traffic .................................................. 384

Behavior of Various Applications for Switch-Destined Traffic .................................................385

Interworking of EIS With Various Applications.......................................................................... 386

Designating a Multicast Router Interface........................................................................................ 386

19 Interfaces......................................................................................................... 387

Basic Interface Configuration...........................................................................................................387

Advanced Interface Configuration...................................................................................................387

Interface Types................................................................................................................................. 388

View Basic Interface Information.....................................................................................................388

Enabling a Physical Interface........................................................................................................... 390

Physical Interfaces.............................................................................................................................391

Configuration Task List for Physical Interfaces.......................................................................... 391

40G to 1G Breakout Cable Adaptor............................................................................................391

Overview of Layer Modes........................................................................................................... 392

Configuring Layer 2 (Data Link) Mode....................................................................................... 392

Configuring Layer 2 (Interface) Mode........................................................................................ 393

Configuring Layer 3 (Network) Mode.........................................................................................393

Configuring Layer 3 (Interface) Mode........................................................................................394

13

Egress Interface Selection (EIS)........................................................................................................394

Important Points to Remember................................................................................................. 395

Configuring EIS........................................................................................................................... 395

Management Interfaces....................................................................................................................395

Configuring Management Interfaces......................................................................................... 395

Configuring Management Interfaces on the S-Series...............................................................396

VLAN Interfaces.................................................................................................................................397

Loopback Interfaces.........................................................................................................................398

Null Interfaces...................................................................................................................................398

Port Channel Interfaces....................................................................................................................398

Port Channel Definition and Standards..................................................................................... 399

Port Channel Benefits.................................................................................................................399

Port Channel Implementation....................................................................................................399

10/100/1000 Mbps Interfaces in Port Channels....................................................................... 400

Configuration Tasks for Port Channel Interfaces......................................................................400

Creating a Port Channel............................................................................................................. 401

Adding a Physical Interface to a Port Channel.......................................................................... 401

Reassigning an Interface to a New Port Channel......................................................................403

Configuring the Minimum Oper Up Links in a Port Channel....................................................404

.....................................................................................................................................................404

Assigning an IP Address to a Port Channel................................................................................405

Deleting or Disabling a Port Channel........................................................................................ 405

Load Balancing Through Port Channels....................................................................................405

Load-Balancing Method.............................................................................................................406

Changing the Hash Algorithm....................................................................................................406

Bulk Configuration........................................................................................................................... 408

Interface Range...........................................................................................................................408

Bulk Configuration Examples.....................................................................................................408

Defining Interface Range Macros.....................................................................................................410

Define the Interface Range.........................................................................................................410

Choosing an Interface-Range Macro.........................................................................................410

Monitoring and Maintaining Interfaces.............................................................................................411

Maintenance Using TDR..............................................................................................................412

Fanning out 40G Ports Dynamically.................................................................................................413

Splitting QSFP Ports to SFP+ Ports...................................................................................................413

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................ 413

Important Points to Remember..................................................................................................414

Example Scenarios...................................................................................................................... 414

Link Dampening................................................................................................................................ 416

Important Points to Remember..................................................................................................416

Enabling Link Dampening...........................................................................................................416

Link Bundle Monitoring.....................................................................................................................418

14

Using Ethernet Pause Frames for Flow Control.............................................................................. 418

Enabling Pause Frames............................................................................................................... 419

Configure the MTU Size on an Interface.........................................................................................420

Port-Pipes..........................................................................................................................................421

Auto-Negotiation on Ethernet Interfaces........................................................................................ 421

Setting the Speed and Duplex Mode of Ethernet Interfaces..................................................... 421

Set Auto-Negotiation Options................................................................................................... 423

View Advanced Interface Information............................................................................................. 424

Configuring the Interface Sampling Size................................................................................... 425

Dynamic Counters............................................................................................................................426

Clearing Interface Counters.......................................................................................................426

Enhanced Validation of Interface Ranges........................................................................................427

Compressing Configuration Files.....................................................................................................427

20 IPv4 Routing....................................................................................................431

IP Addresses.......................................................................................................................................431

Implementation Information...................................................................................................... 431

Configuration Tasks for IP Addresses.............................................................................................. 432

Assigning IP Addresses to an Interface............................................................................................ 432

Configuring Static Routes.................................................................................................................433

Configure Static Routes for the Management Interface.................................................................435

Using the Configured Source IP Address in ICMP Messages..........................................................435

Configuring the ICMP Source Interface.....................................................................................435

Configuring the Duration to Establish a TCP Connection..............................................................436

Enabling Directed Broadcast............................................................................................................436

Resolution of Host Names................................................................................................................437

Enabling Dynamic Resolution of Host Names.................................................................................437

Specifying the Local System Domain and a List of Domains..........................................................438

Configuring DNS with Traceroute................................................................................................... 438

ARP.................................................................................................................................................... 439

Configuration Tasks for ARP............................................................................................................ 439

Configuring Static ARP Entries.........................................................................................................440

Enabling Proxy ARP.......................................................................................................................... 440

Clearing ARP Cache..........................................................................................................................441

ARP Learning via Gratuitous ARP......................................................................................................441

Enabling ARP Learning via Gratuitous ARP......................................................................................442

ARP Learning via ARP Request......................................................................................................... 442

Configuring ARP Retries................................................................................................................... 443

ICMP..................................................................................................................................................444

Configuration Tasks for ICMP..........................................................................................................444

Enabling ICMP Unreachable Messages........................................................................................... 444

UDP Helper....................................................................................................................................... 444

15

Configure UDP Helper................................................................................................................444

Important Points to Remember................................................................................................. 445

Enabling UDP Helper........................................................................................................................445

Configuring a Broadcast Address.....................................................................................................445

Configurations Using UDP Helper................................................................................................... 446

UDP Helper with Broadcast-All Addresses......................................................................................446

UDP Helper with Subnet Broadcast Addresses............................................................................... 447

UDP Helper with Configured Broadcast Addresses........................................................................448

UDP Helper with No Configured Broadcast Addresses..................................................................448

Troubleshooting UDP Helper...........................................................................................................449

21 IPv6 Routing....................................................................................................450

Protocol Overview............................................................................................................................450

Extended Address Space............................................................................................................ 450

Stateless Autoconfiguration....................................................................................................... 450

IPv6 Headers................................................................................................................................451

Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support.............................................. 452

IPv6 Header Fields.......................................................................................................................453

Extension Header Fields..............................................................................................................455

Addressing...................................................................................................................................456

Implementing IPv6 with Dell Networking OS..................................................................................457

ICMPv6..............................................................................................................................................459

Path MTU Discovery.........................................................................................................................460

IPv6 Neighbor Discovery..................................................................................................................460

IPv6 Neighbor Discovery of MTU Packets................................................................................. 461

Configuring the IPv6 Recursive DNS Server.............................................................................. 461

Debugging IPv6 RDNSS Information Sent to the Host ............................................................ 462

Displaying IPv6 RDNSS Information...........................................................................................463

Secure Shell (SSH) Over an IPv6 Transport..................................................................................... 464

Configuration Tasks for IPv6............................................................................................................464

Adjusting Your CAM-Profile....................................................................................................... 464

Assigning an IPv6 Address to an Interface.................................................................................465

Assigning a Static IPv6 Route..................................................................................................... 465

Configuring Telnet with IPv6..................................................................................................... 466

SNMP over IPv6.......................................................................................................................... 466

Showing IPv6 Information.......................................................................................................... 467

Showing an IPv6 Interface..........................................................................................................467

Showing IPv6 Routes..................................................................................................................468

Showing the Running-Configuration for an Interface..............................................................469

Clearing IPv6 Routes...................................................................................................................470

Configuring IPv6 RA Guard.............................................................................................................. 470

Configuring IPv6 RA Guard on an Interface...............................................................................472

16

Monitoring IPv6 RA Guard.......................................................................................................... 473

22 iSCSI Optimization.........................................................................................474

iSCSI Optimization Overview........................................................................................................... 474

Monitoring iSCSI Traffic Flows................................................................................................... 476

Application of Quality of Service to iSCSI Traffic Flows............................................................ 477

Information Monitored in iSCSI Traffic Flows............................................................................ 477

Detection and Auto-Configuration for Dell EqualLogic Arrays................................................ 478

Configuring Detection and Ports for Dell Compellent Arrays.................................................. 478

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................479

Enable and Disable iSCSI Optimization......................................................................................479

Default iSCSI Optimization Values...................................................................................................480

iSCSI Optimization Prerequisites......................................................................................................481

Configuring iSCSI Optimization....................................................................................................... 481

Displaying iSCSI Optimization Information..................................................................................... 483

23 Intermediate System to Intermediate System..........................................485

IS-IS Protocol Overview................................................................................................................... 485

IS-IS Addressing................................................................................................................................485

Multi-Topology IS-IS........................................................................................................................ 486

Transition Mode.......................................................................................................................... 487

Interface Support........................................................................................................................ 487

Adjacencies................................................................................................................................. 487

Graceful Restart................................................................................................................................ 487

Timers..........................................................................................................................................488

Implementation Information............................................................................................................488

Configuration Information............................................................................................................... 489

Configuration Tasks for IS-IS..................................................................................................... 489

Configuring the Distance of a Route......................................................................................... 498

Changing the IS-Type.................................................................................................................498

Redistributing IPv4 Routes..........................................................................................................501

Redistributing IPv6 Routes..........................................................................................................502

Configuring Authentication Passwords..................................................................................... 503

Setting the Overload Bit............................................................................................................. 504

Debugging IS-IS..........................................................................................................................504

IS-IS Metric Styles............................................................................................................................. 506

Configure Metric Values...................................................................................................................506

Maximum Values in the Routing Table...................................................................................... 506

Change the IS-IS Metric Style in One Level Only......................................................................506

Leaks from One Level to Another.............................................................................................. 508

Sample Configurations.....................................................................................................................509

17

24 Link Aggregation Control Protocol (LACP)............................................... 512

Introduction to Dynamic LAGs and LACP........................................................................................512

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

LACP Modes.................................................................................................................................513

Configuring LACP Commands....................................................................................................513

LACP Configuration Tasks................................................................................................................ 514

Creating a LAG.............................................................................................................................514

Configuring the LAG Interfaces as Dynamic.............................................................................. 515

Setting the LACP Long Timeout................................................................................................. 515

Monitoring and Debugging LACP...............................................................................................516

Shared LAG State Tracking............................................................................................................... 516

Configuring Shared LAG State Tracking..................................................................................... 517

Important Points about Shared LAG State Tracking.................................................................. 518

LACP Basic Configuration Example..................................................................................................519

Configure a LAG on ALPHA........................................................................................................ 519

25 Layer 2.............................................................................................................. 527

Manage the MAC Address Table.......................................................................................................527

Clearing the MAC Address Table................................................................................................ 527

Setting the Aging Time for Dynamic Entries.............................................................................. 527

Configuring a Static MAC Address............................................................................................. 528

Displaying the MAC Address Table.............................................................................................528

MAC Learning Limit.......................................................................................................................... 528

Setting the MAC Learning Limit..................................................................................................529

mac learning-limit Dynamic.......................................................................................................529

mac learning-limit mac-address-sticky.....................................................................................530

mac learning-limit station-move............................................................................................... 530

mac learning-limit no-station-move.........................................................................................530

Learning Limit Violation Actions................................................................................................. 531

Setting Station Move Violation Actions.......................................................................................531

Recovering from Learning Limit and Station Move Violations..................................................532

NIC Teaming..................................................................................................................................... 532

Configure Redundant Pairs.............................................................................................................. 534

Important Points about Configuring Redundant Pairs.............................................................. 535

Far-End Failure Detection.................................................................................................................537

FEFD State Changes....................................................................................................................538

Configuring FEFD........................................................................................................................539

Enabling FEFD on an Interface...................................................................................................540

Debugging FEFD..........................................................................................................................541

26 Link Layer Discovery Protocol (LLDP)........................................................543

18

802.1AB (LLDP) Overview.................................................................................................................543

Protocol Data Units.....................................................................................................................543

Optional TLVs....................................................................................................................................544

Management TLVs...................................................................................................................... 545

TIA-1057 (LLDP-MED) Overview...................................................................................................... 547

TIA Organizationally Specific TLVs............................................................................................. 547

Configure LLDP.................................................................................................................................552

Related Configuration Tasks.......................................................................................................552

Important Points to Remember..................................................................................................552

LLDP Compatibility......................................................................................................................552

CONFIGURATION versus INTERFACE Configurations....................................................................552

Enabling LLDP................................................................................................................................... 553

Disabling and Undoing LLDP......................................................................................................553

Enabling LLDP on Management Ports............................................................................................. 553

Disabling and Undoing LLDP on Management Ports................................................................554

Advertising TLVs................................................................................................................................554

Viewing the LLDP Configuration......................................................................................................555

Viewing Information Advertised by Adjacent LLDP Agents.............................................................556

Configuring LLDPDU Intervals..........................................................................................................557

Configuring Transmit and Receive Mode........................................................................................ 558

Configuring a Time to Live............................................................................................................... 559

Debugging LLDP...............................................................................................................................559

Relevant Management Objects........................................................................................................560

27 Microsoft Network Load Balancing............................................................ 567

NLB Unicast Mode Scenario.............................................................................................................567

NLB Multicast Mode Scenario.......................................................................................................... 568

Limitations of the NLB Feature.........................................................................................................568

Microsoft Clustering......................................................................................................................... 568

Enable and Disable VLAN Flooding .................................................................................................569

Configuring a Switch for NLB ..........................................................................................................569

..................................................................................................................................................... 569

28 Multicast Source Discovery Protocol (MSDP)........................................... 571

Protocol Overview.............................................................................................................................571

Anycast RP.........................................................................................................................................573

Implementation Information............................................................................................................ 573

Configure Multicast Source Discovery Protocol............................................................................. 573

Related Configuration Tasks.......................................................................................................574

Enable MSDP.....................................................................................................................................578

Manage the Source-Active Cache................................................................................................... 579

Viewing the Source-Active Cache..............................................................................................579

19

Limiting the Source-Active Cache.............................................................................................580

Clearing the Source-Active Cache............................................................................................ 580

Enabling the Rejected Source-Active Cache............................................................................ 580

Accept Source-Active Messages that Fail the RFP Check.............................................................. 580

Specifying Source-Active Messages................................................................................................ 584

Limiting the Source-Active Messages from a Peer......................................................................... 585

Preventing MSDP from Caching a Local Source.............................................................................585

Preventing MSDP from Caching a Remote Source.........................................................................586

Preventing MSDP from Advertising a Local Source.........................................................................587

Logging Changes in Peership States................................................................................................588

Terminating a Peership.....................................................................................................................588

Clearing Peer Statistics..................................................................................................................... 589

Debugging MSDP..............................................................................................................................589

MSDP with Anycast RP..................................................................................................................... 590

Configuring Anycast RP.................................................................................................................... 591

Reducing Source-Active Message Flooding..............................................................................592

Specifying the RP Address Used in SA Messages.......................................................................592

MSDP Sample Configurations.......................................................................................................... 595

29 Multiple Spanning Tree Protocol (MSTP).................................................. 598

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

Spanning Tree Variations..................................................................................................................599

Implementation Information......................................................................................................599

Configure Multiple Spanning Tree Protocol....................................................................................599

Related Configuration Tasks...................................................................................................... 599

Enable Multiple Spanning Tree Globally..........................................................................................600

Adding and Removing Interfaces.....................................................................................................600

Creating Multiple Spanning Tree Instances..................................................................................... 601

Influencing MSTP Root Selection.................................................................................................... 602

Interoperate with Non-Dell Networking OS Bridges......................................................................603

Changing the Region Name or Revision......................................................................................... 603

Modifying Global Parameters...........................................................................................................604

Modifying the Interface Parameters................................................................................................ 605

Configuring an EdgePort................................................................................................................. 606

Flush MAC Addresses after a Topology Change............................................................................. 607

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

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-

ConfigurationSFTOS Example Running-Configuration............................................................608

Debugging and Verifying MSTP Configurations...............................................................................611

30 Multicast Features..........................................................................................614

Enabling IP Multicast.........................................................................................................................614

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