Dell PowerSwitch S6000 User guide

Dell Conguration Guide for the S6000 System

9.11(2.0P1)

Notes, cautions, and warnings

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

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

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

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2017 - 05

Rev. A00

Contents

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

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

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

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

2 Conguration Fundamentals........................................................................................................................ 36

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

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

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

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

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

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

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

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

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

Example of the grep Keyword.................................................................................................................................. 43

Multiple Users in Conguration Mode...........................................................................................................................44

3 Getting Started............................................................................................................................................45

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

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

Default Conguration.......................................................................................................................................................47

Conguring a Host Name................................................................................................................................................47

Accessing the System Remotely....................................................................................................................................47

Accessing the System Remotely..............................................................................................................................47

Congure the Management Port IP Address......................................................................................................... 48

Congure a Management Route..............................................................................................................................48

Conguring a Username and Password..................................................................................................................48

Conguring the Enable Password..................................................................................................................................49

Conguration File Management.....................................................................................................................................49

Copy Files to and from the System......................................................................................................................... 49

Mounting an NFS File System..................................................................................................................................50

Save the Running-Conguration..............................................................................................................................52

Congure the Overload Bit for a Startup Scenario............................................................................................... 52

Viewing Files...............................................................................................................................................................52

Managing the File System.............................................................................................................................................. 53

View Command History.................................................................................................................................................. 54

Upgrading Dell Networking OS...................................................................................................................................... 54

Using HTTP for File Transfers........................................................................................................................................ 54

Verify Software Images Before Installation...................................................................................................................55

4 Management................................................................................................................................................57

Contents

3

Conguring Privilege Levels............................................................................................................................................57

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

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

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................58

Allowing Access to CONFIGURATION Mode Commands....................................................................................58

Allowing Access to Dierent Modes........................................................................................................................58

Applying a Privilege Level to a Username...............................................................................................................60

Applying a Privilege Level to a Terminal Line.......................................................................................................... 60

Conguring Logging........................................................................................................................................................ 60

Audit and Security Logs.............................................................................................................................................61

Conguring Logging Format ...................................................................................................................................63

Setting Up a Secure Connection to a Syslog Server.............................................................................................63

Log Messages in the Internal Buer..............................................................................................................................64

Conguration Task List for System Log Management.......................................................................................... 64

Disabling System Logging............................................................................................................................................... 64

Sending System Messages to a Syslog Server............................................................................................................65

Conguring a UNIX System as a Syslog Server.....................................................................................................65

Track Login Activity......................................................................................................................................................... 65

Restrictions for Tracking Login Activity.................................................................................................................. 65

Conguring Login Activity Tracking.........................................................................................................................65

Display Login Statistics..............................................................................................................................................66

Limit Concurrent Login Sessions....................................................................................................................................67

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................67

Conguring Concurrent Session Limit.....................................................................................................................68

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

Enabling Secured CLI Mode........................................................................................................................................... 69

Changing System Logging Settings.............................................................................................................................. 69

Display the Logging Buer and the Logging Conguration........................................................................................ 70

Conguring a UNIX Logging Facility Level....................................................................................................................70

Synchronizing Log Messages......................................................................................................................................... 72

Enabling Timestamp on Syslog Messages.................................................................................................................... 72

File Transfer Services.......................................................................................................................................................73

Conguration Task List for File Transfer Services..................................................................................................73

Enabling the FTP Server........................................................................................................................................... 73

Conguring FTP Server Parameters........................................................................................................................73

Conguring FTP Client Parameters......................................................................................................................... 74

Terminal Lines................................................................................................................................................................... 74

Denying and Permitting Access to a Terminal Line................................................................................................75

Conguring Login Authentication for Terminal Lines.............................................................................................76

Setting Timeout for EXEC Privilege Mode....................................................................................................................77

Using Telnet to get to Another Network Device.......................................................................................................... 77

Lock CONFIGURATION Mode....................................................................................................................................... 78

Viewing the Conguration Lock Status...................................................................................................................78

Recovering from a Forgotten Password on the S6000.............................................................................................. 78

Recovering from a Forgotten Enable Password...........................................................................................................79

4

Contents

Recovering from a Failed Start on the S6000..............................................................................................................79

Restoring the Factory Default Settings........................................................................................................................ 80

Important Points to Remember................................................................................................................................80

Restoring Factory Default Environment Variables.................................................................................................. 81

5 802.1X..........................................................................................................................................................83

Port-Authentication Process..........................................................................................................................................85

EAP over RADIUS......................................................................................................................................................85

Conguring 802.1X...........................................................................................................................................................86

Related Conguration Tasks..................................................................................................................................... 86

Important Points to Remember......................................................................................................................................86

Enabling 802.1X.................................................................................................................................................................87

Conguring dot1x Prole ................................................................................................................................................88

Conguring MAC addresses for a do1x Prole.............................................................................................................89

Conguring the Static MAB and MAB Prole .............................................................................................................89

Conguring Critical VLAN ..............................................................................................................................................90

Conguring Request Identity Re-Transmissions............................................................................................................91

Conguring a Quiet Period after a Failed Authentication...................................................................................... 91

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 92

Re-Authenticating a Port................................................................................................................................................93

Conguring Timeouts......................................................................................................................................................94

Conguring Dynamic VLAN Assignment with Port Authentication.......................................................................... 95

Guest and Authentication-Fail VLANs.......................................................................................................................... 96

Conguring a Guest VLAN....................................................................................................................................... 96

Conguring an Authentication-Fail VLAN...............................................................................................................96

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)....................................98

Optimizing CAM Utilization During the Attachment of ACLs to VLANs...................................................................98

Guidelines for Conguring ACL VLAN Groups.............................................................................................................99

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters................................................ 99

Conguring ACL VLAN Groups................................................................................................................................99

Conguring FP Blocks for VLAN Parameters.......................................................................................................100

Viewing CAM Usage....................................................................................................................................................... 101

Allocating FP Blocks for VLAN Processes.................................................................................................................. 102

7 Access Control Lists (ACLs)....................................................................................................................... 104

IP Access Control Lists (ACLs).....................................................................................................................................105

CAM Usage...............................................................................................................................................................106

Implementing ACLs on Dell Networking OS..........................................................................................................106

Important Points to Remember....................................................................................................................................108

Conguration Task List for Route Maps................................................................................................................108

Conguring Match Routes.......................................................................................................................................110

Conguring Set Conditions.......................................................................................................................................111

Congure a Route Map for Route Redistribution..................................................................................................112

Congure a Route Map for Route Tagging............................................................................................................ 113

Continue Clause........................................................................................................................................................ 113

Contents

5

IP Fragment Handling..................................................................................................................................................... 114

IP Fragments ACL Examples....................................................................................................................................114

Layer 4 ACL Rules Examples................................................................................................................................... 114

Congure a Standard IP ACL.........................................................................................................................................115

Conguring a Standard IP ACL Filter......................................................................................................................116

Congure an Extended IP ACL......................................................................................................................................117

Conguring Filters with a Sequence Number........................................................................................................117

Conguring Filters Without a Sequence Number.................................................................................................120

Congure Layer 2 and Layer 3 ACLs............................................................................................................................120

Assign an IP ACL to an Interface...................................................................................................................................121

Applying an IP ACL..........................................................................................................................................................121

Counting ACL Hits....................................................................................................................................................122

Congure Ingress ACLs................................................................................................................................................. 122

Congure Egress ACLs.................................................................................................................................................. 123

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 124

IP Prex Lists.................................................................................................................................................................. 124

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

Conguration Task List for Prex Lists.................................................................................................................. 125

ACL Resequencing......................................................................................................................................................... 128

Resequencing an ACL or Prex List.......................................................................................................................129

Route Maps.....................................................................................................................................................................130

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

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

Behavior of Flow-Based Monitoring....................................................................................................................... 131

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

Conguring UDF ACL.....................................................................................................................................................133

Conguring IP Mirror Access Group............................................................................................................................ 135

Sample Conguration...............................................................................................................................................136

Example of viewing IP mirror–access–group applied to an Interface................................................................136

8 Bidirectional Forwarding Detection (BFD)...................................................................................................137

How BFD Works..............................................................................................................................................................137

BFD Packet Format..................................................................................................................................................138

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

BFD Three-Way Handshake.................................................................................................................................... 140

Session State Changes............................................................................................................................................142

Important Points to Remember.................................................................................................................................... 142

Congure BFD................................................................................................................................................................ 142

Congure BFD for Physical Ports...........................................................................................................................143

Congure BFD for Static Routes............................................................................................................................144

Congure BFD for OSPF......................................................................................................................................... 147

Congure BFD for OSPFv3......................................................................................................................................151

Congure BFD for IS-IS...........................................................................................................................................153

Congure BFD for BGP...........................................................................................................................................155

Congure BFD for VRRP.........................................................................................................................................162

Conguring Protocol Liveness................................................................................................................................165

6

Contents

Troubleshooting BFD................................................................................................................................................165

9 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................167

Autonomous Systems (AS)........................................................................................................................................... 167

Sessions and Peers........................................................................................................................................................ 169

Establish a Session...................................................................................................................................................169

Route Reectors.............................................................................................................................................................170

BGP Attributes.................................................................................................................................................................171

Best Path Selection Criteria.....................................................................................................................................171

Weight........................................................................................................................................................................173

Local Preference....................................................................................................................................................... 173

Multi-Exit Discriminators (MEDs)........................................................................................................................... 174

Origin..........................................................................................................................................................................175

AS Path......................................................................................................................................................................176

Next Hop................................................................................................................................................................... 176

Multiprotocol BGP..........................................................................................................................................................176

Implement BGP with Dell Networking OS................................................................................................................... 177

Additional Path (Add-Path) Support...................................................................................................................... 177

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................177

Ignore Router-ID in Best-Path Calculation............................................................................................................ 178

Four-Byte AS Numbers............................................................................................................................................178

AS4 Number Representation.................................................................................................................................. 178

AS Number Migration.............................................................................................................................................. 180

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

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

Conguration Information..............................................................................................................................................182

BGP Conguration......................................................................................................................................................... 182

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

Conguring AS4 Number Representations........................................................................................................... 186

Conguring Peer Groups.........................................................................................................................................188

Conguring BGP Fast Fall-Over.............................................................................................................................190

Conguring Passive Peering................................................................................................................................... 192

Maintaining Existing AS Numbers During an AS Migration................................................................................. 192

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 193

Enabling Graceful Restart........................................................................................................................................194

Enabling Neighbor Graceful Restart...................................................................................................................... 195

Filtering on an AS-Path Attribute........................................................................................................................... 195

Regular Expressions as Filters.................................................................................................................................197

Redistributing Routes...............................................................................................................................................198

Enabling Additional Paths........................................................................................................................................ 199

Conguring IP Community Lists.............................................................................................................................199

Conguring an IP Extended Community List....................................................................................................... 200

Filtering Routes with Community Lists..................................................................................................................201

Manipulating the COMMUNITY Attribute............................................................................................................ 202

Changing MED Attributes.......................................................................................................................................203

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

Contents

7

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............ 204

Changing the WEIGHT Attribute...........................................................................................................................205

Enabling Multipath...................................................................................................................................................205

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

Filtering BGP Routes Using Route Maps..............................................................................................................207

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

Conguring BGP Route Reectors........................................................................................................................208

Aggregating Routes.................................................................................................................................................209

Conguring BGP Confederations.......................................................................................................................... 209

Enabling Route Flap Dampening.............................................................................................................................210

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

Enabling BGP Neighbor Soft-Reconguration......................................................................................................212

Enabling or disabling BGP neighbors......................................................................................................................213

Route Map Continue................................................................................................................................................215

Enabling MBGP Congurations.................................................................................................................................... 215

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor..........................................216

BGP Regular Expression Optimization.........................................................................................................................216

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

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

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

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

Sample Congurations...................................................................................................................................................219

10 Content Addressable Memory (CAM).......................................................................................................226

CAM Allocation...............................................................................................................................................................226

Test CAM Usage............................................................................................................................................................228

View CAM Proles.........................................................................................................................................................228

View CAM-ACL Settings.............................................................................................................................................. 229

View CAM Usage...........................................................................................................................................................230

CAM Optimization.......................................................................................................................................................... 231

Troubleshoot CAM Proling...........................................................................................................................................231

QoS CAM Region Limitation....................................................................................................................................231

Syslog Error When the Table is Full........................................................................................................................ 231

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................232

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................232

Unied Forwarding Table (UFT) Modes......................................................................................................................232

Conguring UFT Modes..........................................................................................................................................232

11 Control Plane Policing (CoPP).................................................................................................................. 234

Congure Control Plane Policing................................................................................................................................. 235

Conguring CoPP for Protocols............................................................................................................................ 236

Conguring CoPP for CPU Queues...................................................................................................................... 238

Protocol to CPU Queue Mapping..........................................................................................................................239

Conguring Protocol to CPU Queue Mapping.....................................................................................................239

Displaying CoPP Conguration ............................................................................................................................. 240

8

Contents

12 Data Center Bridging (DCB)..................................................................................................................... 242

Ethernet Enhancements in Data Center Bridging......................................................................................................242

Priority-Based Flow Control................................................................................................................................... 243

Enhanced Transmission Selection..........................................................................................................................244

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................245

Data Center Bridging in a Trac Flow...................................................................................................................246

Enabling Data Center Bridging..................................................................................................................................... 246

DCB Maps and its Attributes..................................................................................................................................247

Data Center Bridging: Default Conguration..............................................................................................................248

Conguring Priority-Based Flow Control.................................................................................................................... 248

Conguring Lossless Queues....................................................................................................................................... 249

Conguring PFC in a DCB Map....................................................................................................................................251

PFC Conguration Notes........................................................................................................................................ 251

PFC Prerequisites and Restrictions....................................................................................................................... 252

Conguring PFC without a DCB Map.........................................................................................................................252

Conguring Lossless QueuesExample:..................................................................................................................252

Priority-Based Flow Control Using Dynamic Buer Method..............................................................................254

Behavior of Tagged Packets.........................................................................................................................................255

Conguration Example for DSCP and PFC Priorities................................................................................................255

SNMP Support for PFC and Buer Statistics Tracking........................................................................................... 256

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................257

PFC and ETS Conguration Examples........................................................................................................................257

Using PFC to Manage Converged Ethernet Trac...................................................................................................257

Operations on Untagged Packets................................................................................................................................258

Generation of PFC for a Priority for Untagged Packets...........................................................................................258

Congure Enhanced Transmission Selection..............................................................................................................258

ETS Prerequisites and Restrictions....................................................................................................................... 258

Creating an ETS Priority Group............................................................................................................................. 259

ETS Operation with DCBx......................................................................................................................................260

Conguring Bandwidth Allocation for DCBx CIN................................................................................................ 260

Conguring ETS in a DCB Map.............................................................................................................................. 261

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 262

Using ETS to Manage Converged Ethernet Trac...................................................................................................263

Applying DCB Policies in a Switch Stack.................................................................................................................... 263

Congure a DCBx Operation........................................................................................................................................263

DCBx Operation....................................................................................................................................................... 263

DCBx Port Roles...................................................................................................................................................... 264

DCB Conguration Exchange................................................................................................................................ 265

Conguration Source Election............................................................................................................................... 265

Propagation of DCB Information........................................................................................................................... 266

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 266

DCBx Example..........................................................................................................................................................267

DCBx Prerequisites and Restrictions.....................................................................................................................267

Conguring DCBx.................................................................................................................................................... 267

Verifying the DCB Conguration.................................................................................................................................. 271

Contents

9

QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 279

Conguring the Dynamic Buer Method................................................................................................................... 280

Sample DCB Conguration............................................................................................................................................281

PFC and ETS Conguration Command Examples...............................................................................................283

13 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 284

DHCP Packet Format and Options............................................................................................................................. 284

Assign an IP Address using DHCP...............................................................................................................................286

Implementation Information..........................................................................................................................................287

Congure the System to be a DHCP Server..............................................................................................................287

Conguring the Server for Automatic Address Allocation..................................................................................288

Specifying a Default Gateway................................................................................................................................ 289

Congure a Method of Hostname Resolution..................................................................................................... 289

Using DNS for Address Resolution........................................................................................................................289

Using NetBIOS WINS for Address Resolution..................................................................................................... 290

Creating Manual Binding Entries............................................................................................................................290

Debugging the DHCP Server.................................................................................................................................290

Using DHCP Clear Commands............................................................................................................................... 291

Congure the System to be a DHCP Client................................................................................................................291

Conguring the DHCP Client System....................................................................................................................291

DHCP Client on a Management Interface............................................................................................................293

DHCP Client Operation with Other Features.......................................................................................................293

Congure the System for User Port Stacking (Option 230)....................................................................................294

Congure Secure DHCP...............................................................................................................................................294

Option 82..................................................................................................................................................................295

DHCP Snooping.......................................................................................................................................................295

Conguring the DHCP secondary-subnet............................................................................................................299

Drop DHCP Packets on Snooped VLANs Only....................................................................................................299

Dynamic ARP Inspection........................................................................................................................................ 300

Conguring Dynamic ARP Inspection....................................................................................................................301

Source Address Validation............................................................................................................................................ 302

Enabling IP Source Address Validation..................................................................................................................302

DHCP MAC Source Address Validation................................................................................................................ 303

Enabling IP+MAC Source Address Validation.......................................................................................................303

Viewing the Number of SAV Dropped Packets................................................................................................... 304

Clearing the Number of SAV Dropped Packets...................................................................................................304

14 Equal Cost Multi-Path (ECMP)................................................................................................................305

ECMP for Flow-Based Anity.....................................................................................................................................305

Conguring the Hash Algorithm............................................................................................................................ 305

Enabling Deterministic ECMP Next Hop.............................................................................................................. 305

Conguring the Hash Algorithm Seed.................................................................................................................. 306

Link Bundle Monitoring................................................................................................................................................. 306

Managing ECMP Group Paths...............................................................................................................................307

Creating an ECMP Group Bundle.......................................................................................................................... 307

Modifying the ECMP Group Threshold.................................................................................................................307

10

Contents

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................308

Support for ECMP in host table............................................................................................................................ 309

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 309

RTAG7.............................................................................................................................................................................309

Flow-based Hashing for ECMP.................................................................................................................................... 310

15 FIP Snooping............................................................................................................................................ 313

Fibre Channel over Ethernet.........................................................................................................................................313

Ensure Robustness in a Converged Ethernet Network.............................................................................................313

FIP Snooping on Ethernet Bridges...............................................................................................................................315

FIP Snooping in a Switch Stack....................................................................................................................................317

Using FIP Snooping........................................................................................................................................................ 317

FIP Snooping Prerequisites......................................................................................................................................317

Important Points to Remember.............................................................................................................................. 317

Enabling the FCoE Transit Feature.........................................................................................................................318

Enable FIP Snooping on VLANs............................................................................................................................. 319

Congure the FC-MAP Value................................................................................................................................. 319

Congure a Port for a Bridge-to-Bridge Link........................................................................................................319

Congure a Port for a Bridge-to-FCF Link............................................................................................................319

Impact on Other Software Features...................................................................................................................... 319

FIP Snooping Restrictions...................................................................................................................................... 320

Conguring FIP Snooping.......................................................................................................................................320

Displaying FIP Snooping Information............................................................................................................................321

FCoE Transit Conguration Example...........................................................................................................................326

16 Flex Hash and Optimized Boot-Up............................................................................................................328

Flex Hash Capability Overview.....................................................................................................................................328

Conguring the Flex Hash Mechanism.......................................................................................................................328

Conguring Fast Boot and LACP Fast Switchover...................................................................................................329

Optimizing the Boot Time.............................................................................................................................................329

Booting Process When Optimized Boot Time Mechanism is Enabled..............................................................329

Guidelines for Conguring Optimized Booting Mechanism................................................................................330

Interoperation of Applications with Fast Boot and System States...........................................................................331

LACP and IPv4 Routing...........................................................................................................................................331

LACP and IPv6 Routing...........................................................................................................................................331

BGP Graceful Restart............................................................................................................................................. 332

Cold Boot Caused by Power Cycling the System................................................................................................332

Unexpected Reload of the System........................................................................................................................332

Software Upgrade................................................................................................................................................... 332

LACP Fast Switchover............................................................................................................................................332

Changes to BGP Multipath.....................................................................................................................................333

Delayed Installation of ECMP Routes Into BGP...................................................................................................333

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................333

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 334

17 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 335

Contents

11

Protocol Overview.........................................................................................................................................................335

Ring Status............................................................................................................................................................... 336

Multiple FRRP Rings............................................................................................................................................... 336

Important FRRP Points........................................................................................................................................... 337

Important FRRP Concepts..................................................................................................................................... 338

Implementing FRRP.......................................................................................................................................................339

FRRP Conguration...................................................................................................................................................... 339

Creating the FRRP Group.......................................................................................................................................339

Conguring the Control VLAN...............................................................................................................................340

Conguring and Adding the Member VLANs....................................................................................................... 341

Setting the FRRP Timers........................................................................................................................................342

Clearing the FRRP Counters..................................................................................................................................342

Viewing the FRRP Conguration...........................................................................................................................342

Viewing the FRRP Information...............................................................................................................................342

Troubleshooting FRRP.................................................................................................................................................. 343

Conguration Checks..............................................................................................................................................343

Sample Conguration and Topology............................................................................................................................343

FRRP Support on VLT...................................................................................................................................................344

Example Scenario.................................................................................................................................................... 345

Important Points to Remember............................................................................................................................. 346

18 GARP VLAN Registration Protocol (GVRP)..............................................................................................347

Important Points to Remember....................................................................................................................................347

Congure GVRP............................................................................................................................................................ 348

Related Conguration Tasks...................................................................................................................................348

Enabling GVRP Globally................................................................................................................................................ 349

Enabling GVRP on a Layer 2 Interface........................................................................................................................349

Congure GVRP Registration...................................................................................................................................... 349

Congure a GARP Timer.............................................................................................................................................. 350

19 Internet Group Management Protocol (IGMP).......................................................................................... 351

IGMP Implementation Information............................................................................................................................... 351

IGMP Protocol Overview...............................................................................................................................................351

IGMP Version 2.........................................................................................................................................................351

IGMP Version 3........................................................................................................................................................ 353

Congure IGMP.............................................................................................................................................................356

Related Conguration Tasks...................................................................................................................................356

Viewing IGMP Enabled Interfaces............................................................................................................................... 357

Selecting an IGMP Version........................................................................................................................................... 357

Viewing IGMP Groups................................................................................................................................................... 357

Viewing IGMP Snooping Groups................................................................................................................................. 358

Adjusting Timers............................................................................................................................................................ 358

Adjusting Query and Response Timers................................................................................................................. 358

Enabling IGMP Immediate-Leave................................................................................................................................ 359

IGMP Snooping..............................................................................................................................................................359

IGMP Snooping Implementation Information.......................................................................................................359

12

Contents

Conguring IGMP Snooping.................................................................................................................................. 360

Removing a Group-Port Association.....................................................................................................................360

Disabling Multicast Flooding....................................................................................................................................361

Specifying a Port as Connected to a Multicast Router....................................................................................... 361

Conguring the Switch as Querier.........................................................................................................................361

Fast Convergence after MSTP Topology Changes...................................................................................................362

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................362

Protocol Separation.................................................................................................................................................363

Enabling and Disabling Management Egress Interface Selection...................................................................... 364

Handling of Management Route Conguration................................................................................................... 364

Handling of Switch-Initiated Trac.......................................................................................................................365

Handling of Switch-Destined Trac......................................................................................................................366

Handling of Transit Trac (Trac Separation).................................................................................................... 366

Mapping of Management Applications and Trac Type.....................................................................................366

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 367

Behavior of Various Applications for Switch-Destined Trac ...........................................................................368

Interworking of EIS With Various Applications.....................................................................................................369

Designating a Multicast Router Interface................................................................................................................... 370

20 Interfaces................................................................................................................................................. 371

Basic Interface Conguration........................................................................................................................................371

Advanced Interface Conguration................................................................................................................................371

Interface Types............................................................................................................................................................... 372

View Basic Interface Information................................................................................................................................. 372

Resetting an Interface to its Factory Default State................................................................................................... 374

Enabling a Physical Interface........................................................................................................................................375

Physical Interfaces.........................................................................................................................................................375

Conguration Task List for Physical Interfaces.................................................................................................... 375

40G to 1G Breakout Cable Adaptor....................................................................................................................... 375

Overview of Layer Modes.......................................................................................................................................376

Conguring Layer 2 (Data Link) Mode..................................................................................................................376

Conguring Layer 2 (Interface) Mode...................................................................................................................377

Conguring Layer 3 (Network) Mode................................................................................................................... 377

Conguring Layer 3 (Interface) Mode...................................................................................................................378

Egress Interface Selection (EIS).................................................................................................................................. 378

Important Points to Remember..............................................................................................................................379

Conguring EIS........................................................................................................................................................ 379

Management Interfaces................................................................................................................................................379

Conguring Management Interfaces.....................................................................................................................379

Conguring a Management Interface on an Ethernet Port................................................................................ 381

VLAN Interfaces.............................................................................................................................................................382

Loopback Interfaces...................................................................................................................................................... 382

Null Interfaces................................................................................................................................................................ 383

Port Channel Interfaces................................................................................................................................................ 383

Port Channel Denition and Standards.................................................................................................................383

Port Channel Benets.............................................................................................................................................383

Contents

13

Port Channel Implementation.................................................................................................................................384

Interfaces in Port Channels.................................................................................................................................... 384

Conguration Tasks for Port Channel Interfaces.................................................................................................385

Creating a Port Channel......................................................................................................................................... 385

Adding a Physical Interface to a Port Channel.....................................................................................................385

Reassigning an Interface to a New Port Channel................................................................................................ 387

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 388

Adding or Removing a Port Channel from a VLAN............................................................................................. 388

Assigning an IP Address to a Port Channel.......................................................................................................... 389

Deleting or Disabling a Port Channel.....................................................................................................................389

Load Balancing Through Port Channels............................................................................................................... 390

Changing the Hash Algorithm................................................................................................................................390

Bulk Conguration..........................................................................................................................................................391

Interface Range........................................................................................................................................................ 391

Bulk Conguration Examples.................................................................................................................................. 391

Dening Interface Range Macros................................................................................................................................ 393

Dene the Interface Range.................................................................................................................................... 393

Choosing an Interface-Range Macro.................................................................................................................... 393

Monitoring and Maintaining Interfaces........................................................................................................................393

Maintenance Using TDR......................................................................................................................................... 394

Splitting 40G Ports without Reload.............................................................................................................................395

Splitting QSFP Ports to SFP+ Ports............................................................................................................................397

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port.................................................................................. 397

Important Points to Remember............................................................................................................................. 398

Example Scenarios.................................................................................................................................................. 398

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................402

Link Dampening..............................................................................................................................................................402

Important Points to Remember............................................................................................................................. 402

Enabling Link Dampening........................................................................................................................................403

Link Bundle Monitoring................................................................................................................................................. 404

Using Ethernet Pause Frames for Flow Control........................................................................................................ 405

Enabling Pause Frames...........................................................................................................................................405

Congure the MTU Size on an Interface....................................................................................................................406

Port-Pipes.......................................................................................................................................................................407

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 407

Setting the Speed of Ethernet Interfaces............................................................................................................ 407

Set Auto-Negotiation Options............................................................................................................................... 408

View Advanced Interface Information.........................................................................................................................409

Conguring the Interface Sampling Size............................................................................................................... 410

Conguring the Trac Sampling Size Globally............................................................................................................ 411

Dynamic Counters.......................................................................................................................................................... 412

Clearing Interface Counters.................................................................................................................................... 413

Compressing Conguration Files.................................................................................................................................. 413

21 IPv4 Routing............................................................................................................................................. 417

IP Addresses....................................................................................................................................................................418

14

Contents

Implementation Information.................................................................................................................................... 418

Conguration Tasks for IP Addresses.......................................................................................................................... 418

Assigning IP Addresses to an Interface........................................................................................................................418

Conguring Static Routes............................................................................................................................................. 419

Congure Static Routes for the Management Interface..........................................................................................420

Using the Congured Source IP Address in ICMP Messages...................................................................................421

Conguring the ICMP Source Interface................................................................................................................ 421

Conguring the Duration to Establish a TCP Connection......................................................................................... 421

Enabling Directed Broadcast........................................................................................................................................ 422

Resolution of Host Names............................................................................................................................................422

Enabling Dynamic Resolution of Host Names............................................................................................................422

Specifying the Local System Domain and a List of Domains....................................................................................423

Conguring DNS with Traceroute................................................................................................................................423

ARP..................................................................................................................................................................................424

Conguration Tasks for ARP........................................................................................................................................ 424

Conguring Static ARP Entries....................................................................................................................................424

Enabling Proxy ARP.......................................................................................................................................................425

Clearing ARP Cache......................................................................................................................................................425

ARP Learning via Gratuitous ARP................................................................................................................................425

Enabling ARP Learning via Gratuitous ARP................................................................................................................426

ARP Learning via ARP Request................................................................................................................................... 426

Conguring ARP Retries............................................................................................................................................... 427

ICMP................................................................................................................................................................................427

Conguration Tasks for ICMP...................................................................................................................................... 427

Enabling ICMP Unreachable Messages.......................................................................................................................427

UDP Helper.....................................................................................................................................................................428

Congure UDP Helper.............................................................................................................................................428

Important Points to Remember..............................................................................................................................428

Enabling UDP Helper.....................................................................................................................................................428

Conguring a Broadcast Address................................................................................................................................ 429

Congurations Using UDP Helper............................................................................................................................... 429

UDP Helper with Broadcast-All Addresses.................................................................................................................429

UDP Helper with Subnet Broadcast Addresses.........................................................................................................430

UDP Helper with Congured Broadcast Addresses..................................................................................................430

UDP Helper with No Congured Broadcast Addresses.............................................................................................431

Troubleshooting UDP Helper.........................................................................................................................................431

22 IPv6 Routing............................................................................................................................................432

Protocol Overview.........................................................................................................................................................432

Extended Address Space........................................................................................................................................433

Stateless Autoconguration................................................................................................................................... 433

IPv6 Headers............................................................................................................................................................433

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support....................................................................434

IPv6 Header Fields...................................................................................................................................................435

Extension Header Fields..........................................................................................................................................437

Addressing................................................................................................................................................................ 438

Contents

15

Implementing IPv6 with Dell Networking OS.............................................................................................................439

ICMPv6...........................................................................................................................................................................440

Path MTU Discovery......................................................................................................................................................441

IPv6 Neighbor Discovery...............................................................................................................................................441

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................442

Conguring the IPv6 Recursive DNS Server....................................................................................................... 442

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 443

Displaying IPv6 RDNSS Information......................................................................................................................443

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 444

Conguration Tasks for IPv6........................................................................................................................................ 444

Adjusting Your CAM-Prole....................................................................................................................................444

Assigning an IPv6 Address to an Interface...........................................................................................................445

Assigning a Static IPv6 Route................................................................................................................................446

Conguring Telnet with IPv6..................................................................................................................................446

SNMP over IPv6......................................................................................................................................................446

Displaying IPv6 Information.................................................................................................................................... 447

Displaying an IPv6 Interface Information...............................................................................................................447

Showing IPv6 Routes..............................................................................................................................................448

Showing the Running-Conguration for an Interface.........................................................................................449

Clearing IPv6 Routes...............................................................................................................................................450

Disabling ND Entry Timeout...................................................................................................................................450

Conguring IPv6 RA Guard..........................................................................................................................................450

Conguring IPv6 RA Guard on an Interface.........................................................................................................452

Monitoring IPv6 RA Guard..................................................................................................................................... 453

23 iSCSI Optimization...................................................................................................................................454

iSCSI Optimization Overview.......................................................................................................................................454

Monitoring iSCSI Trac Flows...............................................................................................................................456

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 456

Information Monitored in iSCSI Trac Flows.......................................................................................................456

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 457

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 457

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................458

Enable and Disable iSCSI Optimization.................................................................................................................458

Default iSCSI Optimization Values...............................................................................................................................459

iSCSI Optimization Prerequisites................................................................................................................................. 459

Conguring iSCSI Optimization................................................................................................................................... 459

Displaying iSCSI Optimization Information.................................................................................................................. 461

24 Intermediate System to Intermediate System.......................................................................................... 463

IS-IS Protocol Overview................................................................................................................................................463

IS-IS Addressing.............................................................................................................................................................463

Multi-Topology IS-IS...................................................................................................................................................... 464

Transition Mode....................................................................................................................................................... 464

Interface Support.................................................................................................................................................... 465

Adjacencies...............................................................................................................................................................465

16

Contents

Graceful Restart............................................................................................................................................................ 465

Timers....................................................................................................................................................................... 465

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

Conguration Information.............................................................................................................................................466

Conguration Tasks for IS-IS..................................................................................................................................467

Conguring the Distance of a Route..................................................................................................................... 474

Changing the IS-Type.............................................................................................................................................. 475

Redistributing IPv4 Routes..................................................................................................................................... 477

Redistributing IPv6 Routes..................................................................................................................................... 478

Conguring Authentication Passwords.................................................................................................................479

Setting the Overload Bit......................................................................................................................................... 479

Debugging IS-IS....................................................................................................................................................... 480

IS-IS Metric Styles..........................................................................................................................................................481

Congure Metric Values................................................................................................................................................ 481

Maximum Values in the Routing Table................................................................................................................... 481

Change the IS-IS Metric Style in One Level Only.................................................................................................481

Leaks from One Level to Another..........................................................................................................................483

Sample Congurations.................................................................................................................................................. 484

25 Link Aggregation Control Protocol (LACP).............................................................................................. 486

Introduction to Dynamic LAGs and LACP.................................................................................................................. 486

Important Points to Remember............................................................................................................................. 486

LACP Modes.............................................................................................................................................................487

Conguring LACP Commands............................................................................................................................... 487

LACP Conguration Tasks............................................................................................................................................ 488

Creating a LAG.........................................................................................................................................................488

Conguring the LAG Interfaces as Dynamic........................................................................................................ 488

Setting the LACP Long Timeout............................................................................................................................489

Monitoring and Debugging LACP..........................................................................................................................489

Shared LAG State Tracking.......................................................................................................................................... 490

Conguring Shared LAG State Tracking...............................................................................................................490

Important Points about Shared LAG State Tracking........................................................................................... 492

LACP Basic Conguration Example.............................................................................................................................492

Congure a LAG on ALPHA................................................................................................................................... 492

26 Layer 2..................................................................................................................................................... 501

Manage the MAC Address Table..................................................................................................................................501

Clearing the MAC Address Table............................................................................................................................501

Setting the Aging Time for Dynamic Entries.........................................................................................................501

Conguring a Static MAC Address........................................................................................................................502

Displaying the MAC Address Table........................................................................................................................502

MAC Learning Limit.......................................................................................................................................................502

Setting the MAC Learning Limit............................................................................................................................ 503

mac learning-limit Dynamic.................................................................................................................................... 503

mac learning-limit mac-address-sticky................................................................................................................. 503

mac learning-limit station-move............................................................................................................................ 504

Contents

17

mac learning-limit no-station-move...................................................................................................................... 504

Learning Limit Violation Actions.............................................................................................................................504

Setting Station Move Violation Actions................................................................................................................505

Recovering from Learning Limit and Station Move Violations...........................................................................505

Disabling MAC Address Learning on the System................................................................................................ 506

NIC Teaming...................................................................................................................................................................506

Congure Redundant Pairs...........................................................................................................................................507

Important Points about Conguring Redundant Pairs........................................................................................509

Far-End Failure Detection..............................................................................................................................................510

FEFD State Changes................................................................................................................................................ 511

Conguring FEFD..................................................................................................................................................... 512

Enabling FEFD on an Interface............................................................................................................................... 512

Debugging FEFD.......................................................................................................................................................513

27 Link Layer Discovery Protocol (LLDP)...................................................................................................... 515

802.1AB (LLDP) Overview............................................................................................................................................ 515

Protocol Data Units..................................................................................................................................................515

Optional TLVs..................................................................................................................................................................516

Management TLVs................................................................................................................................................... 516

TIA-1057 (LLDP-MED) Overview................................................................................................................................. 518

TIA Organizationally Specic TLVs.........................................................................................................................518

Congure LLDP..............................................................................................................................................................522

Related Conguration Tasks...................................................................................................................................522

Important Points to Remember............................................................................................................................. 522

LLDP Compatibility..................................................................................................................................................523

CONFIGURATION versus INTERFACE Congurations............................................................................................ 523

Enabling LLDP................................................................................................................................................................523

Disabling and Undoing LLDP.................................................................................................................................. 524

Enabling LLDP on Management Ports........................................................................................................................524

Disabling and Undoing LLDP on Management Ports.......................................................................................... 524

Advertising TLVs............................................................................................................................................................ 524

Viewing the LLDP Conguration................................................................................................................................. 526

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 526

Conguring LLDPDU Intervals..................................................................................................................................... 527

Conguring Transmit and Receive Mode....................................................................................................................528

Conguring the Time to Live Value............................................................................................................................. 528

Debugging LLDP............................................................................................................................................................529

Relevant Management Objects................................................................................................................................... 530

28 Microsoft Network Load Balancing.......................................................................................................... 535

NLB Unicast Mode Scenario........................................................................................................................................535

NLB Multicast Mode Scenario.....................................................................................................................................535

Limitations of the NLB Feature....................................................................................................................................536

Microsoft Clustering......................................................................................................................................................536

Enable and Disable VLAN Flooding ............................................................................................................................ 536

Conguring a Switch for NLB .....................................................................................................................................536

18

Contents

Enabling a Switch for Multicast NLB.....................................................................................................................537

29 Multicast Source Discovery Protocol (MSDP).........................................................................................538

Protocol Overview.........................................................................................................................................................538

Anycast RP.....................................................................................................................................................................539

Implementation Information......................................................................................................................................... 540

Congure Multicast Source Discovery Protocol........................................................................................................540

Related Conguration Tasks...................................................................................................................................540

Enable MSDP................................................................................................................................................................. 544

Manage the Source-Active Cache.............................................................................................................................. 545

Viewing the Source-Active Cache........................................................................................................................ 545

Limiting the Source-Active Cache.........................................................................................................................545

Clearing the Source-Active Cache........................................................................................................................546

Enabling the Rejected Source-Active Cache....................................................................................................... 546

Accept Source-Active Messages that Fail the RFP Check......................................................................................546

Specifying Source-Active Messages...........................................................................................................................549

Limiting the Source-Active Messages from a Peer...................................................................................................550

Preventing MSDP from Caching a Local Source.......................................................................................................550

Preventing MSDP from Caching a Remote Source................................................................................................... 551

Preventing MSDP from Advertising a Local Source.................................................................................................. 551

Logging Changes in Peership States...........................................................................................................................552

Terminating a Peership..................................................................................................................................................552

Clearing Peer Statistics.................................................................................................................................................553

Debugging MSDP..........................................................................................................................................................553

MSDP with Anycast RP................................................................................................................................................554

Conguring Anycast RP............................................................................................................................................... 555

Reducing Source-Active Message Flooding........................................................................................................ 556

Specifying the RP Address Used in SA Messages..............................................................................................556

MSDP Sample Congurations..................................................................................................................................... 558

30 Multiple Spanning Tree Protocol (MSTP).................................................................................................561

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

Spanning Tree Variations.............................................................................................................................................. 562

Implementation Information................................................................................................................................... 562

Congure Multiple Spanning Tree Protocol................................................................................................................562

Related Conguration Tasks...................................................................................................................................563

Enable Multiple Spanning Tree Globally...................................................................................................................... 563

Adding and Removing Interfaces.................................................................................................................................563

Creating Multiple Spanning Tree Instances................................................................................................................ 564

Inuencing MSTP Root Selection............................................................................................................................... 565

Interoperate with Non-Dell Bridges.............................................................................................................................565

Changing the Region Name or Revision.....................................................................................................................566

Modifying Global Parameters.......................................................................................................................................566

Modifying the Interface Parameters............................................................................................................................567

Conguring an EdgePort.............................................................................................................................................. 568

Flush MAC Addresses after a Topology Change....................................................................................................... 569

Contents

19

MSTP Sample Congurations......................................................................................................................................569

Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-

CongurationSFTOS Example Running-Conguration....................................................................................... 570

Debugging and Verifying MSTP Congurations.........................................................................................................573

31 Multicast Features....................................................................................................................................575

Enabling IP Multicast.....................................................................................................................................................575

Implementation Information..........................................................................................................................................575

Multicast Policies........................................................................................................................................................... 576

IPv4 Multicast Policies............................................................................................................................................ 576

Understanding Multicast Traceroute (mtrace).......................................................................................................... 583

Important Points to Remember............................................................................................................................. 584

Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 584

Supported Error Codes.................................................................................................................................................585

mtrace Scenarios...........................................................................................................................................................586

32 Object Tracking........................................................................................................................................592

Object Tracking Overview............................................................................................................................................ 592

Track Layer 2 Interfaces..........................................................................................................................................593

Track Layer 3 Interfaces..........................................................................................................................................593

Track IPv4 and IPv6 Routes................................................................................................................................... 594

Set Tracking Delays................................................................................................................................................. 595

VRRP Object Tracking............................................................................................................................................ 595

Object Tracking Conguration..................................................................................................................................... 595

Tracking a Layer 2 Interface................................................................................................................................... 595

Tracking a Layer 3 Interface................................................................................................................................... 596

Track an IPv4/IPv6 Route...................................................................................................................................... 598

Displaying Tracked Objects........................................................................................................................................... 601

33 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................603

Protocol Overview.........................................................................................................................................................603

Autonomous System (AS) Areas........................................................................................................................... 603

Area Types................................................................................................................................................................ 604

Networks and Neighbors........................................................................................................................................605

Router Types............................................................................................................................................................ 605

Designated and Backup Designated Routers....................................................................................................... 607

Link-State Advertisements (LSAs)........................................................................................................................ 607

Router Priority and Cost.........................................................................................................................................608

OSPF with Dell Networking OS...................................................................................................................................609

Graceful Restart....................................................................................................................................................... 610

Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................... 611

Multi-Process OSPFv2 with VRF............................................................................................................................611

RFC-2328 Compliant OSPF Flooding.....................................................................................................................611

OSPF ACK Packing.................................................................................................................................................. 612

Setting OSPF Adjacency with Cisco Routers.......................................................................................................612

Conguration Information..............................................................................................................................................613

20

Contents

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Dell PowerSwitch S6000 User guide

Dell PowerSwitch S6000 User guide

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