Dell PowerSwitch S6100-ON User guide

Dell Conguration Guide for the S6100–ON

System

9.11(2.1P1)

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 - 06

Rev. A00

Contents

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

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

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

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

2 Conguration Fundamentals........................................................................................................................ 35

Accessing the Command Line........................................................................................................................................35

CLI Modes.........................................................................................................................................................................35

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

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

Undoing Commands........................................................................................................................................................ 40

Obtaining Help...................................................................................................................................................................41

Entering and Editing Commands.................................................................................................................................... 41

Command History............................................................................................................................................................ 42

Filtering show Command Outputs.................................................................................................................................42

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

Multiple Users in Conguration Mode...........................................................................................................................43

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

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

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

Micro USB-B Access................................................................................................................................................. 47

Default Conguration...................................................................................................................................................... 48

Conguring a Host Name............................................................................................................................................... 48

Accessing the System Remotely....................................................................................................................................48

Accessing the System Remotely..............................................................................................................................48

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

Congure a Management Route..............................................................................................................................49

Conguring a Username and Password..................................................................................................................49

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

Conguration File Management.....................................................................................................................................50

Copy Files to and from the System.........................................................................................................................50

Mounting an NFS File System...................................................................................................................................51

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

Congure the Overload Bit for a Startup Scenario............................................................................................... 53

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

Managing the File System.............................................................................................................................................. 54

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

Upgrading Dell Networking OS...................................................................................................................................... 55

Using HTTP for File Transfers........................................................................................................................................55

Verify Software Images Before Installation...................................................................................................................56

Contents

3

4 Management............................................................................................................................................... 58

Conguring Privilege Levels........................................................................................................................................... 58

Creating a Custom Privilege Level...........................................................................................................................59

Removing a Command from EXEC Mode.............................................................................................................. 59

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................59

Allowing Access to CONFIGURATION Mode Commands....................................................................................59

Allowing Access to Dierent Modes........................................................................................................................59

Applying a Privilege Level to a Username................................................................................................................61

Applying a Privilege Level to a Terminal Line...........................................................................................................61

Conguring Logging......................................................................................................................................................... 61

Audit and Security Logs............................................................................................................................................ 62

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

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

Log Messages in the Internal Buer..............................................................................................................................65

Conguration Task List for System Log Management..........................................................................................65

Disabling System Logging...............................................................................................................................................65

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

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

Track Login Activity......................................................................................................................................................... 66

Restrictions for Tracking Login Activity.................................................................................................................. 66

Conguring Login Activity Tracking.........................................................................................................................66

Display Login Statistics..............................................................................................................................................67

Limit Concurrent Login Sessions....................................................................................................................................68

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 68

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

Enabling the System to Clear Existing Sessions.................................................................................................... 69

Enabling Secured CLI Mode........................................................................................................................................... 70

Changing System Logging Settings...............................................................................................................................70

Display the Logging Buer and the Logging Conguration.........................................................................................71

Conguring a UNIX Logging Facility Level.....................................................................................................................71

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

Enabling Timestamp on Syslog Messages.................................................................................................................... 73

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

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

Enabling the FTP Server........................................................................................................................................... 74

Conguring FTP Server Parameters........................................................................................................................74

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

Terminal Lines................................................................................................................................................................... 75

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..........................................................................................................78

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

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

LPC Bus Quality Degradation......................................................................................................................................... 79

4

Contents

LBQA (LPC Bus Quality Analyzer) Failure Detection mode..................................................................................80

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

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

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

Reloading the system...................................................................................................................................................... 82

5 802.1X..........................................................................................................................................................84

Port-Authentication Process..........................................................................................................................................86

EAP over RADIUS...................................................................................................................................................... 87

Conguring 802.1X........................................................................................................................................................... 87

Related Conguration Tasks..................................................................................................................................... 87

Important Points to Remember......................................................................................................................................88

Enabling 802.1X................................................................................................................................................................ 88

Conguring dot1x Prole ................................................................................................................................................89

Conguring MAC addresses for a do1x Prole.............................................................................................................90

Conguring the Static MAB and MAB Prole .............................................................................................................90

Conguring Critical VLAN .............................................................................................................................................. 91

Conguring Request Identity Re-Transmissions...........................................................................................................92

Conguring a Quiet Period after a Failed Authentication..................................................................................... 92

Conguring a Quiet Period after a Failed Authentication........................................................................................... 93

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 94

Re-Authenticating a Port................................................................................................................................................95

Conguring Dynamic VLAN Assignment with Port Authentication.......................................................................... 96

Guest and Authentication-Fail VLANs...........................................................................................................................97

Conguring a Guest VLAN........................................................................................................................................97

Conguring an Authentication-Fail VLAN............................................................................................................... 97

Conguring Timeouts................................................................................................................................................98

Multi-Host Authentication.............................................................................................................................................. 99

Conguring Multi-Host AuthenticationConguring Single-Host Authentication..............................................101

Multi-Supplicant Authentication...................................................................................................................................102

Conguring Multi-Supplicant AuthenticationRestricting Multi-Supplicant Authentication.............................102

MAC Authentication Bypass......................................................................................................................................... 103

MAB in Single-host and Multi-Host Mode............................................................................................................104

MAB in Multi-Supplicant Authentication Mode....................................................................................................104

Conguring MAC Authentication Bypass..............................................................................................................104

Dynamic CoS with 802.1X............................................................................................................................................. 105

6 Access Control Lists (ACLs)....................................................................................................................... 107

IP Access Control Lists (ACLs).....................................................................................................................................108

CAM Usage...............................................................................................................................................................109

Implementing ACLs on Dell Networking OS..........................................................................................................109

Congure ACL Range Proles..................................................................................................................................111

Important Points to Remember......................................................................................................................................111

Conguration Task List for Route Maps.................................................................................................................112

Conguring Match Routes.......................................................................................................................................114

Conguring Set Conditions......................................................................................................................................115

Contents

5

Congure a Route Map for Route Redistribution..................................................................................................116

Congure a Route Map for Route Tagging............................................................................................................ 117

Continue Clause.........................................................................................................................................................117

IP Fragment Handling..................................................................................................................................................... 117

IP Fragments ACL Examples................................................................................................................................... 118

Layer 4 ACL Rules Examples................................................................................................................................... 118

Congure a Standard IP ACL.........................................................................................................................................119

Conguring a Standard IP ACL Filter..................................................................................................................... 120

Congure an Extended IP ACL......................................................................................................................................121

Conguring Filters with a Sequence Number........................................................................................................121

Conguring Filters Without a Sequence Number.................................................................................................124

Congure Layer 2 and Layer 3 ACLs............................................................................................................................124

Assign an IP ACL to an Interface..................................................................................................................................125

Applying an IP ACL.........................................................................................................................................................125

Counting ACL Hits....................................................................................................................................................126

Congure Ingress ACLs................................................................................................................................................. 126

Congure Egress ACLs.................................................................................................................................................. 127

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 128

IP Prex Lists.................................................................................................................................................................. 128

Implementation Information.................................................................................................................................... 129

Conguration Task List for Prex Lists.................................................................................................................. 129

ACL Resequencing......................................................................................................................................................... 132

Resequencing an ACL or Prex List.......................................................................................................................133

Route Maps.....................................................................................................................................................................134

Implementation Information.................................................................................................................................... 134

Flow-Based Monitoring Support for ACLs.................................................................................................................. 134

Behavior of Flow-Based Monitoring.......................................................................................................................135

Enabling Flow-Based Monitoring............................................................................................................................136

Conguring IP Mirror Access Group............................................................................................................................ 136

Sample Conguration...............................................................................................................................................137

Example of viewing IP mirror–access–group applied to an Interface................................................................138

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 139

How BFD Works............................................................................................................................................................. 139

BFD Packet Format..................................................................................................................................................140

BFD Sessions............................................................................................................................................................. 141

BFD Three-Way Handshake.................................................................................................................................... 142

Session State Changes............................................................................................................................................144

Important Points to Remember.................................................................................................................................... 144

Congure BFD................................................................................................................................................................ 144

Congure BFD for Physical Ports...........................................................................................................................145

Congure BFD for Static Routes............................................................................................................................148

Congure BFD for OSPF..........................................................................................................................................151

Congure BFD for OSPFv3.....................................................................................................................................156

Congure BFD for IS-IS...........................................................................................................................................159

Congure BFD for BGP........................................................................................................................................... 162

6

Contents

Congure BFD for VRRP.........................................................................................................................................168

Conguring Protocol Liveness.................................................................................................................................171

Troubleshooting BFD.................................................................................................................................................171

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................173

Autonomous Systems (AS)........................................................................................................................................... 173

Sessions and Peers.........................................................................................................................................................175

Establish a Session................................................................................................................................................... 175

Route Reectors.............................................................................................................................................................176

BGP Attributes................................................................................................................................................................177

Best Path Selection Criteria.................................................................................................................................... 177

Weight........................................................................................................................................................................179

Local Preference....................................................................................................................................................... 179

Multi-Exit Discriminators (MEDs)...........................................................................................................................180

Origin...........................................................................................................................................................................181

AS Path......................................................................................................................................................................182

Next Hop................................................................................................................................................................... 182

Multiprotocol BGP..........................................................................................................................................................182

Implement BGP with Dell Networking OS...................................................................................................................183

Additional Path (Add-Path) Support......................................................................................................................183

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 183

Ignore Router-ID in Best-Path Calculation............................................................................................................ 184

Four-Byte AS Numbers............................................................................................................................................184

AS4 Number Representation.................................................................................................................................. 184

AS Number Migration.............................................................................................................................................. 186

BGP4 Management Information Base (MIB)........................................................................................................187

Important Points to Remember...............................................................................................................................187

Conguration Information..............................................................................................................................................188

BGP Conguration......................................................................................................................................................... 188

Enabling BGP............................................................................................................................................................ 189

Conguring AS4 Number Representations........................................................................................................... 192

Conguring Peer Groups.........................................................................................................................................194

Conguring BGP Fast Fall-Over.............................................................................................................................196

Conguring Passive Peering................................................................................................................................... 198

Maintaining Existing AS Numbers During an AS Migration.................................................................................198

Allowing an AS Number to Appear in its Own AS Path.......................................................................................199

Enabling Graceful Restart.......................................................................................................................................200

Enabling Neighbor Graceful Restart...................................................................................................................... 201

Filtering on an AS-Path Attribute........................................................................................................................... 201

Regular Expressions as Filters................................................................................................................................203

Redistributing Routes..............................................................................................................................................204

Enabling Additional Paths....................................................................................................................................... 205

Conguring IP Community Lists............................................................................................................................ 205

Conguring an IP Extended Community List....................................................................................................... 206

Filtering Routes with Community Lists................................................................................................................. 207

Manipulating the COMMUNITY Attribute............................................................................................................208

Contents

7

Changing MED Attributes.......................................................................................................................................209

Changing the LOCAL_PREFERENCE Attribute..................................................................................................209

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 210

Changing the WEIGHT Attribute.............................................................................................................................211

Enabling Multipath.................................................................................................................................................... 211

Filtering BGP Routes.................................................................................................................................................211

Filtering BGP Routes Using Route Maps...............................................................................................................213

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 213

Conguring BGP Route Reectors........................................................................................................................ 214

Aggregating Routes..................................................................................................................................................215

Conguring BGP Confederations...........................................................................................................................215

Enabling Route Flap Dampening.............................................................................................................................216

Changing BGP Timers..............................................................................................................................................218

Enabling BGP Neighbor Soft-Reconguration..................................................................................................... 218

Enabling or disabling BGP neighbors..................................................................................................................... 219

Route Map Continue................................................................................................................................................221

Enabling MBGP Congurations.................................................................................................................................... 221

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 222

BGP Regular Expression Optimization........................................................................................................................222

Debugging BGP..............................................................................................................................................................222

Storing Last and Bad PDUs....................................................................................................................................223

Capturing PDUs....................................................................................................................................................... 224

PDU Counters.......................................................................................................................................................... 225

Sample Congurations.................................................................................................................................................. 225

9 Content Addressable Memory (CAM)........................................................................................................ 232

CAM Allocation...............................................................................................................................................................232

Test CAM Usage............................................................................................................................................................ 234

View CAM-ACL Settings.............................................................................................................................................. 234

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

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

Troubleshoot CAM Proling..........................................................................................................................................236

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

Syslog Error When the Table is Full....................................................................................................................... 236

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

Syslog Warning for Discrepancies Between Congured Extended Prexes.................................................... 237

Unied Forwarding Table (UFT) Modes......................................................................................................................237

Conguring UFT Modes..........................................................................................................................................237

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

Congure Control Plane Policing................................................................................................................................. 240

Conguring CoPP for Protocols............................................................................................................................. 241

Conguring CoPP for CPU Queues...................................................................................................................... 243

Protocol to CPU Queue Mapping.......................................................................................................................... 244

Conguring Protocol to CPU Queue Mapping.....................................................................................................244

Displaying CoPP Conguration ............................................................................................................................. 245

8

Contents

11 Data Center Bridging (DCB)......................................................................................................................247

Ethernet Enhancements in Data Center Bridging......................................................................................................247

Priority-Based Flow Control................................................................................................................................... 248

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

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

Data Center Bridging in a Trac Flow................................................................................................................... 251

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

DCB Maps and its Attributes..................................................................................................................................252

Data Center Bridging: Default Conguration..............................................................................................................252

Conguring Priority-Based Flow Control....................................................................................................................253

Conguring Lossless Queues................................................................................................................................. 254

Conguring PFC in a DCB Map...................................................................................................................................255

PFC Conguration Notes....................................................................................................................................... 255

PFC Prerequisites and Restrictions.......................................................................................................................256

Applying a DCB Map on a Port....................................................................................................................................256

Conguring PFC without a DCB Map.........................................................................................................................257

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................257

Pause and Resume of Trac..................................................................................................................................257

Buer Sizes for Lossless or PFC Packets............................................................................................................ 258

Shared headroom for lossless or PFC packets.......................................................................................................... 258

Example Scenario.................................................................................................................................................... 259

Conguring Shared Head Room Buer................................................................................................................ 260

Viewing Shared Head Room Usage.......................................................................................................................260

Monitoring Buer Statistics for Tracking Purposes............................................................................................. 261

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

SNMP Support for PFC and Buer Statistics Tracking............................................................................................262

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................262

Conguration Example for DSCP and PFC Priorities................................................................................................263

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

Generation of PFC for a Priority for Untagged Packets...........................................................................................263

Congure Enhanced Transmission Selection..............................................................................................................264

Creating an ETS Priority Group..............................................................................................................................264

ETS Operation with DCBx......................................................................................................................................265

Conguring ETS in a DCB Map..............................................................................................................................265

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 267

Using ETS to Manage Converged Ethernet Trac................................................................................................... 267

Applying DCB Policies in a Switch Stack.................................................................................................................... 267

Congure a DCBx Operation........................................................................................................................................ 267

DCBx Operation.......................................................................................................................................................268

DCBx Port Roles...................................................................................................................................................... 268

DCB Conguration Exchange................................................................................................................................ 269

Conguration Source Election................................................................................................................................270

Propagation of DCB Information............................................................................................................................270

Auto-Detection and Manual Conguration of the DCBx Version....................................................................... 271

DCBx Example.......................................................................................................................................................... 271

Contents

9

DCBx Prerequisites and Restrictions.....................................................................................................................272

Conguring DCBx.................................................................................................................................................... 272

Verifying the DCB Conguration..................................................................................................................................276

QoS dot1p Trac Classication and Queue Assignment..........................................................................................283

Conguring the Dynamic Buer Method....................................................................................................................283

Sample DCB Conguration...........................................................................................................................................284

PFC and ETS Conguration Command Examples...............................................................................................286

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 287

DHCP Packet Format and Options..............................................................................................................................287

Assign an IP Address using DHCP...............................................................................................................................289

Implementation Information......................................................................................................................................... 290

Congure the System to be a DHCP Server............................................................................................................. 290

Conguring the Server for Automatic Address Allocation.................................................................................. 291

Specifying a Default Gateway................................................................................................................................ 292

Congure a Method of Hostname Resolution..................................................................................................... 292

Using DNS for Address Resolution........................................................................................................................292

Using NetBIOS WINS for Address Resolution..................................................................................................... 293

Creating Manual Binding Entries............................................................................................................................293

Debugging the DHCP Server................................................................................................................................. 293

Using DHCP Clear Commands.............................................................................................................................. 294

Congure the System to be a DHCP Client............................................................................................................... 294

Conguring the DHCP Client System...................................................................................................................294

DHCP Client on a Management Interface............................................................................................................296

DHCP Client Operation with Other Features.......................................................................................................296

Congure the System for User Port Stacking (Option 230)....................................................................................297

Congure Secure DHCP............................................................................................................................................... 297

Option 82..................................................................................................................................................................298

DHCP Snooping.......................................................................................................................................................298

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 301

Dynamic ARP Inspection.........................................................................................................................................302

Conguring Dynamic ARP Inspection................................................................................................................... 303

Source Address Validation............................................................................................................................................ 304

Enabling IP Source Address Validation..................................................................................................................304

DHCP MAC Source Address Validation................................................................................................................ 305

Enabling IP+MAC Source Address Validation.......................................................................................................305

Viewing the Number of SAV Dropped Packets................................................................................................... 306

Clearing the Number of SAV Dropped Packets...................................................................................................306

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 307

ECMP for Flow-Based Anity..................................................................................................................................... 307

Conguring the Hash Algorithm Seed...................................................................................................................307

Link Bundle Monitoring..................................................................................................................................................307

Managing ECMP Group Paths...............................................................................................................................308

Creating an ECMP Group Bundle..........................................................................................................................308

Modifying the ECMP Group Threshold................................................................................................................ 309

10

Contents

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................309

Support for ECMP in host table............................................................................................................................. 310

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes .........................................................................310

RTAG7........................................................................................................................................................................310

Flow-based Hashing for ECMP...............................................................................................................................311

14 FIP Snooping............................................................................................................................................ 315

Fibre Channel over Ethernet.........................................................................................................................................315

Ensure Robustness in a Converged Ethernet Network.............................................................................................315

FIP Snooping on Ethernet Bridges............................................................................................................................... 317

Using FIP Snooping........................................................................................................................................................319

FIP Snooping Prerequisites..................................................................................................................................... 319

Important Points to Remember.............................................................................................................................. 319

Enabling the FCoE Transit Feature........................................................................................................................320

Enable FIP Snooping on VLANs..............................................................................................................................321

Congure the FC-MAP Value................................................................................................................................. 321

Congure a Port for a Bridge-to-Bridge Link........................................................................................................321

Congure a Port for a Bridge-to-FCF Link............................................................................................................321

Impact on Other Software Features..................................................................................................................... 322

FIP Snooping Restrictions...................................................................................................................................... 322

Conguring FIP Snooping.......................................................................................................................................322

Displaying FIP Snooping Information...........................................................................................................................323

FCoE Transit Conguration Example...........................................................................................................................328

15 Flex Hash and Optimized Boot-Up............................................................................................................330

Flex Hash Capability Overview.................................................................................................................................... 330

Conguring the Flex Hash Mechanism.......................................................................................................................330

Conguring Fast Boot and LACP Fast Switchover....................................................................................................331

Optimizing the Boot Time..............................................................................................................................................331

Booting Process When Optimized Boot Time Mechanism is Enabled...............................................................331

Guidelines for Conguring Optimized Booting Mechanism................................................................................332

Interoperation of Applications with Fast Boot and System States..........................................................................333

LACP and IPv4 Routing.......................................................................................................................................... 333

LACP and IPv6 Routing.......................................................................................................................................... 333

BGP Graceful Restart............................................................................................................................................. 334

Cold Boot Caused by Power Cycling the System................................................................................................334

Unexpected Reload of the System........................................................................................................................334

Software Upgrade................................................................................................................................................... 334

LACP Fast Switchover............................................................................................................................................334

Changes to BGP Multipath.................................................................................................................................... 335

Delayed Installation of ECMP Routes Into BGP...................................................................................................335

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 335

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 336

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 337

Protocol Overview......................................................................................................................................................... 337

Contents

11

Ring Status............................................................................................................................................................... 338

Multiple FRRP Rings................................................................................................................................................338

Important FRRP Points...........................................................................................................................................339

Important FRRP Concepts.....................................................................................................................................340

Implementing FRRP....................................................................................................................................................... 341

FRRP Conguration....................................................................................................................................................... 341

Creating the FRRP Group....................................................................................................................................... 341

Conguring the Control VLAN...............................................................................................................................342

Conguring and Adding the Member VLANs.......................................................................................................343

Setting the FRRP Timers........................................................................................................................................344

Clearing the FRRP Counters..................................................................................................................................344

Viewing the FRRP Conguration...........................................................................................................................344

Viewing the FRRP Information.............................................................................................................................. 345

Troubleshooting FRRP.................................................................................................................................................. 345

Conguration Checks..............................................................................................................................................345

Sample Conguration and Topology............................................................................................................................345

FRRP Support on VLT...................................................................................................................................................347

Example Scenario.....................................................................................................................................................347

Important Points to Remember............................................................................................................................. 348

17 GARP VLAN Registration Protocol (GVRP)..............................................................................................350

Important Points to Remember................................................................................................................................... 350

Congure GVRP............................................................................................................................................................. 351

Related Conguration Tasks....................................................................................................................................351

Enabling GVRP Globally................................................................................................................................................ 352

Enabling GVRP on a Layer 2 Interface........................................................................................................................352

Congure GVRP Registration...................................................................................................................................... 352

Congure a GARP Timer.............................................................................................................................................. 353

18 Internet Group Management Protocol (IGMP)......................................................................................... 354

IGMP Implementation Information.............................................................................................................................. 354

IGMP Protocol Overview..............................................................................................................................................354

IGMP Version 2........................................................................................................................................................ 354

IGMP Version 3........................................................................................................................................................356

Congure IGMP............................................................................................................................................................. 359

Related Conguration Tasks...................................................................................................................................359

Viewing IGMP Enabled Interfaces...............................................................................................................................360

Selecting an IGMP Version...........................................................................................................................................360

Viewing IGMP Groups...................................................................................................................................................360

Adjusting Timers............................................................................................................................................................. 361

Adjusting Query and Response Timers..................................................................................................................361

Enabling IGMP Immediate-Leave.................................................................................................................................362

IGMP Snooping..............................................................................................................................................................362

IGMP Snooping Implementation Information....................................................................................................... 362

Conguring IGMP Snooping...................................................................................................................................362

Removing a Group-Port Association.....................................................................................................................363

12

Contents

Disabling Multicast Flooding...................................................................................................................................363

Specifying a Port as Connected to a Multicast Router...................................................................................... 363

Conguring the Switch as Querier........................................................................................................................ 364

Fast Convergence after MSTP Topology Changes...................................................................................................364

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................365

Protocol Separation.................................................................................................................................................365

Enabling and Disabling Management Egress Interface Selection...................................................................... 366

Handling of Management Route Conguration................................................................................................... 367

Handling of Switch-Initiated Trac....................................................................................................................... 367

Handling of Switch-Destined Trac......................................................................................................................368

Handling of Transit Trac (Trac Separation).................................................................................................... 369

Mapping of Management Applications and Trac Type.....................................................................................369

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 370

Behavior of Various Applications for Switch-Destined Trac ............................................................................371

Interworking of EIS With Various Applications..................................................................................................... 372

Designating a Multicast Router Interface................................................................................................................... 372

19 Interfaces................................................................................................................................................. 373

Basic Interface Conguration....................................................................................................................................... 373

Advanced Interface Conguration............................................................................................................................... 373

Interface Types............................................................................................................................................................... 374

View Basic Interface Information................................................................................................................................. 374

Resetting an Interface to its Factory Default State...................................................................................................376

Enabling a Physical Interface........................................................................................................................................ 377

Physical Interfaces......................................................................................................................................................... 377

Conguration Task List for Physical Interfaces.....................................................................................................377

Overview of Layer Modes.......................................................................................................................................378

Conguring Layer 2 (Data Link) Mode..................................................................................................................378

Conguring Layer 2 (Interface) Mode...................................................................................................................379

Conguring Layer 3 (Network) Mode...................................................................................................................379

Conguring Layer 3 (Interface) Mode...................................................................................................................379

Egress Interface Selection (EIS)..................................................................................................................................380

Important Points to Remember............................................................................................................................. 380

Conguring EIS........................................................................................................................................................ 380

Management Interfaces.................................................................................................................................................381

Conguring Management Interfaces..................................................................................................................... 381

Conguring a Management Interface on an Ethernet Port................................................................................382

S6100 — OIR...........................................................................................................................................................383

VLAN Interfaces.............................................................................................................................................................383

Loopback Interfaces......................................................................................................................................................384

Null Interfaces................................................................................................................................................................ 385

Port Channel Interfaces................................................................................................................................................385

Port Channel Denition and Standards.................................................................................................................385

Port Channel Benets.............................................................................................................................................385

Port Channel Implementation.................................................................................................................................385

Interfaces in Port Channels.................................................................................................................................... 386

Contents

13

Conguration Tasks for Port Channel Interfaces.................................................................................................386

Creating a Port Channel..........................................................................................................................................387

Adding a Physical Interface to a Port Channel.....................................................................................................387

Reassigning an Interface to a New Port Channel................................................................................................389

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 389

Adding or Removing a Port Channel from a VLAN............................................................................................. 390

Assigning an IP Address to a Port Channel...........................................................................................................391

Deleting or Disabling a Port Channel......................................................................................................................391

Load Balancing Through Port Channels................................................................................................................ 391

Load-Balancing Method..........................................................................................................................................392

Changing the Hash Algorithm................................................................................................................................392

Bulk Conguration......................................................................................................................................................... 393

Interface Range........................................................................................................................................................393

Bulk Conguration Examples..................................................................................................................................394

Dening Interface Range Macros................................................................................................................................ 395

Dene the Interface Range.................................................................................................................................... 396

Choosing an Interface-Range Macro....................................................................................................................396

Monitoring and Maintaining Interfaces....................................................................................................................... 396

Split 40G Ports on a 16X40G QSFP+ Module............................................................................................................397

Splitting 100G Ports...................................................................................................................................................... 398

Link Dampening..............................................................................................................................................................399

Important Points to Remember............................................................................................................................. 399

Enabling Link Dampening........................................................................................................................................399

Link Bundle Monitoring.................................................................................................................................................. 401

Using Ethernet Pause Frames for Flow Control......................................................................................................... 401

Enabling Pause Frames........................................................................................................................................... 402

Congure the MTU Size on an Interface....................................................................................................................402

Port-Pipes.......................................................................................................................................................................403

CR4 Auto-Negotiation...................................................................................................................................................403

FEC Conguration......................................................................................................................................................... 404

Setting the Speed of Ethernet Interfaces..................................................................................................................406

Adjusting the Keepalive Timer......................................................................................................................................407

View Advanced Interface Information.........................................................................................................................407

Conguring the Interface Sampling Size.............................................................................................................. 408

Conguring the Trac Sampling Size Globally.......................................................................................................... 409

Dynamic Counters..........................................................................................................................................................410

Clearing Interface Counters.....................................................................................................................................411

Enhanced Validation of Interface Ranges.................................................................................................................... 411

Compressing Conguration Files.................................................................................................................................. 412

20 IPv4 Routing............................................................................................................................................ 415

IP Addresses....................................................................................................................................................................416

Implementation Information.................................................................................................................................... 416

Conguration Tasks for IP Addresses.......................................................................................................................... 416

Assigning IP Addresses to an Interface........................................................................................................................416

Conguring Static Routes..............................................................................................................................................417

14

Contents

Congure Static Routes for the Management Interface...........................................................................................418

Using the Congured Source IP Address in ICMP Messages...................................................................................419

Conguring the ICMP Source Interface................................................................................................................419

Conguring the Duration to Establish a TCP Connection......................................................................................... 419

Enabling Directed Broadcast........................................................................................................................................ 420

Resolution of Host Names............................................................................................................................................420

Enabling Dynamic Resolution of Host Names............................................................................................................420

Specifying the Local System Domain and a List of Domains.................................................................................... 421

Conguring DNS with Traceroute................................................................................................................................ 421

ARP..................................................................................................................................................................................422

Conguration Tasks for ARP........................................................................................................................................ 422

Conguring Static ARP Entries....................................................................................................................................422

Enabling Proxy ARP.......................................................................................................................................................423

Clearing ARP Cache...................................................................................................................................................... 423

ARP Learning via Gratuitous ARP................................................................................................................................423

Enabling ARP Learning via Gratuitous ARP................................................................................................................424

ARP Learning via ARP Request................................................................................................................................... 424

Conguring ARP Retries...............................................................................................................................................425

ICMP............................................................................................................................................................................... 425

Conguration Tasks for ICMP...................................................................................................................................... 425

Enabling ICMP Unreachable Messages...................................................................................................................... 425

UDP Helper.....................................................................................................................................................................426

Congure UDP Helper.............................................................................................................................................426

Important Points to Remember............................................................................................................................. 426

Enabling UDP Helper.....................................................................................................................................................426

Conguring a Broadcast Address................................................................................................................................ 426

Congurations Using UDP Helper................................................................................................................................427

UDP Helper with Broadcast-All Addresses................................................................................................................. 427

UDP Helper with Subnet Broadcast Addresses.........................................................................................................428

UDP Helper with Congured Broadcast Addresses.................................................................................................. 428

UDP Helper with No Congured Broadcast Addresses............................................................................................429

Troubleshooting UDP Helper........................................................................................................................................429

21 IPv6 Routing............................................................................................................................................ 430

Protocol Overview.........................................................................................................................................................430

Extended Address Space.........................................................................................................................................431

Stateless Autoconguration.................................................................................................................................... 431

IPv6 Headers.............................................................................................................................................................431

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support....................................................................432

IPv6 Header Fields...................................................................................................................................................433

Extension Header Fields..........................................................................................................................................435

Addressing................................................................................................................................................................ 436

Implementing IPv6 with Dell Networking OS............................................................................................................. 437

ICMPv6........................................................................................................................................................................... 437

Path MTU Discovery..................................................................................................................................................... 437

IPv6 Neighbor Discovery.............................................................................................................................................. 438

Contents

15

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................438

Conguring the IPv6 Recursive DNS Server....................................................................................................... 438

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................439

Displaying IPv6 RDNSS Information......................................................................................................................440

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 440

Conguration Tasks for IPv6.........................................................................................................................................441

Adjusting Your CAM-Prole.....................................................................................................................................441

Assigning an IPv6 Address to an Interface........................................................................................................... 442

Assigning a Static IPv6 Route................................................................................................................................442

Conguring Telnet with IPv6..................................................................................................................................443

SNMP over IPv6......................................................................................................................................................443

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

Displaying an IPv6 Interface Information.............................................................................................................. 444

Showing IPv6 Routes..............................................................................................................................................445

Showing the Running-Conguration for an Interface.........................................................................................446

Clearing IPv6 Routes...............................................................................................................................................446

Disabling ND Entry Timeout................................................................................................................................... 447

Conguring IPv6 RA Guard.......................................................................................................................................... 447

Conguring IPv6 RA Guard on an Interface.........................................................................................................449

Monitoring IPv6 RA Guard......................................................................................................................................449

22 iSCSI Optimization.................................................................................................................................. 450

iSCSI Optimization Overview.......................................................................................................................................450

Monitoring iSCSI Trac Flows...............................................................................................................................452

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 452

Information Monitored in iSCSI Trac Flows.......................................................................................................452

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 453

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................453

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................454

Enable and Disable iSCSI Optimization................................................................................................................. 454

Default iSCSI Optimization Values...............................................................................................................................455

iSCSI Optimization Prerequisites................................................................................................................................. 455

Conguring iSCSI Optimization................................................................................................................................... 455

Displaying iSCSI Optimization Information..................................................................................................................457

23 Intermediate System to Intermediate System.......................................................................................... 459

IS-IS Protocol Overview............................................................................................................................................... 459

IS-IS Addressing.............................................................................................................................................................459

Multi-Topology IS-IS...................................................................................................................................................... 460

Transition Mode....................................................................................................................................................... 460

Interface Support..................................................................................................................................................... 461

Adjacencies............................................................................................................................................................... 461

Graceful Restart............................................................................................................................................................. 461

Timers........................................................................................................................................................................ 461

Implementation Information.......................................................................................................................................... 461

Conguration Information.............................................................................................................................................462

16

Contents

Conguration Tasks for IS-IS..................................................................................................................................463

Conguring the Distance of a Route.....................................................................................................................470

Changing the IS-Type............................................................................................................................................... 471

Redistributing IPv4 Routes..................................................................................................................................... 473

Redistributing IPv6 Routes..................................................................................................................................... 474

Conguring Authentication Passwords.................................................................................................................475

Setting the Overload Bit......................................................................................................................................... 475

Debugging IS-IS....................................................................................................................................................... 476

IS-IS Metric Styles......................................................................................................................................................... 477

Congure Metric Values................................................................................................................................................477

Maximum Values in the Routing Table...................................................................................................................478

Change the IS-IS Metric Style in One Level Only................................................................................................ 478

Leaks from One Level to Another.......................................................................................................................... 479

Sample Congurations..................................................................................................................................................480

24 Link Aggregation Control Protocol (LACP).............................................................................................. 483

Introduction to Dynamic LAGs and LACP.................................................................................................................. 483

Important Points to Remember............................................................................................................................. 483

LACP Modes............................................................................................................................................................ 484

Conguring LACP Commands............................................................................................................................... 484

LACP Conguration Tasks............................................................................................................................................485

Creating a LAG.........................................................................................................................................................485

Conguring the LAG Interfaces as Dynamic........................................................................................................485

Setting the LACP Long Timeout............................................................................................................................486

Monitoring and Debugging LACP..........................................................................................................................486

Shared LAG State Tracking...........................................................................................................................................487

Conguring Shared LAG State Tracking............................................................................................................... 487

Important Points about Shared LAG State Tracking........................................................................................... 489

LACP Basic Conguration Example............................................................................................................................ 489

Congure a LAG on ALPHA................................................................................................................................... 489

25 Layer 2.....................................................................................................................................................498

Manage the MAC Address Table................................................................................................................................. 498

Clearing the MAC Address Table........................................................................................................................... 498

Setting the Aging Time for Dynamic Entries........................................................................................................498

Conguring a Static MAC Address........................................................................................................................499

Displaying the MAC Address Table........................................................................................................................ 499

MAC Learning Limit.......................................................................................................................................................499

Setting the MAC Learning Limit............................................................................................................................ 500

mac learning-limit Dynamic.................................................................................................................................... 500

mac learning-limit mac-address-sticky................................................................................................................. 500

mac learning-limit station-move............................................................................................................................. 501

mac learning-limit no-station-move....................................................................................................................... 501

Learning Limit Violation Actions..............................................................................................................................501

Setting Station Move Violation Actions................................................................................................................ 502

Recovering from Learning Limit and Station Move Violations........................................................................... 502

Contents

17

Disabling MAC Address Learning on the System................................................................................................ 503

NIC Teaming................................................................................................................................................................... 503

Congure Redundant Pairs.......................................................................................................................................... 504

Important Points about Conguring Redundant Pairs........................................................................................506

Far-End Failure Detection............................................................................................................................................. 507

FEFD State Changes...............................................................................................................................................508

Conguring FEFD....................................................................................................................................................509

Enabling FEFD on an Interface.............................................................................................................................. 509

Debugging FEFD.......................................................................................................................................................510

26 Link Layer Discovery Protocol (LLDP)...................................................................................................... 512

802.1AB (LLDP) Overview.............................................................................................................................................512

Protocol Data Units.................................................................................................................................................. 512

Optional TLVs..................................................................................................................................................................513

Management TLVs................................................................................................................................................... 513

TIA-1057 (LLDP-MED) Overview................................................................................................................................. 515

TIA Organizationally Specic TLVs.........................................................................................................................515

Congure LLDP.............................................................................................................................................................. 519

Related Conguration Tasks....................................................................................................................................519

Important Points to Remember.............................................................................................................................. 519

LLDP Compatibility...................................................................................................................................................519

CONFIGURATION versus INTERFACE Congurations.............................................................................................519

Enabling LLDP................................................................................................................................................................520

Disabling and Undoing LLDP.................................................................................................................................. 520

Enabling LLDP on Management Ports.........................................................................................................................521

Disabling and Undoing LLDP on Management Ports...........................................................................................521

Advertising TLVs.............................................................................................................................................................521

Viewing the LLDP Conguration................................................................................................................................. 522

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 523

Conguring LLDPDU Intervals..................................................................................................................................... 524

Conguring Transmit and Receive Mode....................................................................................................................524

Conguring the Time to Live Value............................................................................................................................. 525

Debugging LLDP............................................................................................................................................................526

Relevant Management Objects....................................................................................................................................527

27 Microsoft Network Load Balancing.......................................................................................................... 532

NLB Unicast Mode Scenario........................................................................................................................................532

NLB Multicast Mode Scenario.....................................................................................................................................532

Limitations of the NLB Feature....................................................................................................................................533

Microsoft Clustering......................................................................................................................................................533

Enable and Disable VLAN Flooding ............................................................................................................................ 533

Conguring a Switch for NLB .....................................................................................................................................533

Enabling a Switch for Multicast NLB.................................................................................................................... 534

28 Multicast Source Discovery Protocol (MSDP)......................................................................................... 535

Protocol Overview.........................................................................................................................................................535

18

Contents

Anycast RP.....................................................................................................................................................................536

Implementation Information..........................................................................................................................................537

Congure Multicast Source Discovery Protocol........................................................................................................ 537

Related Conguration Tasks................................................................................................................................... 537

Enable MSDP..................................................................................................................................................................541

Manage the Source-Active Cache.............................................................................................................................. 542

Viewing the Source-Active Cache.........................................................................................................................542

Limiting the Source-Active Cache.........................................................................................................................542

Clearing the Source-Active Cache........................................................................................................................ 543

Enabling the Rejected Source-Active Cache....................................................................................................... 543

Accept Source-Active Messages that Fail the RFP Check......................................................................................543

Specifying Source-Active Messages...........................................................................................................................546

Limiting the Source-Active Messages from a Peer...................................................................................................547

Preventing MSDP from Caching a Local Source.......................................................................................................547

Preventing MSDP from Caching a Remote Source.................................................................................................. 548

Preventing MSDP from Advertising a Local Source..................................................................................................548

Logging Changes in Peership States...........................................................................................................................549

Terminating a Peership..................................................................................................................................................549

Clearing Peer Statistics................................................................................................................................................ 550

Debugging MSDP..........................................................................................................................................................550

MSDP with Anycast RP.................................................................................................................................................551

Conguring Anycast RP................................................................................................................................................552

Reducing Source-Active Message Flooding........................................................................................................ 553

Specifying the RP Address Used in SA Messages..............................................................................................553

MSDP Sample Congurations..................................................................................................................................... 555

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 558

Protocol Overview.........................................................................................................................................................558

Spanning Tree Variations.............................................................................................................................................. 559

Implementation Information................................................................................................................................... 559

Congure Multiple Spanning Tree Protocol................................................................................................................559

Related Conguration Tasks...................................................................................................................................560

Enable Multiple Spanning Tree Globally...................................................................................................................... 560

Adding and Removing Interfaces.................................................................................................................................560

Creating Multiple Spanning Tree Instances.................................................................................................................561

Inuencing MSTP Root Selection................................................................................................................................ 561

Interoperate with Non-Dell Bridges.............................................................................................................................562

Changing the Region Name or Revision..................................................................................................................... 562

Modifying Global Parameters.......................................................................................................................................563

Modifying the Interface Parameters........................................................................................................................... 564

Conguring an EdgePort.............................................................................................................................................. 565

Flush MAC Addresses after a Topology Change....................................................................................................... 566

MSTP Sample Congurations......................................................................................................................................566

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

CongurationSFTOS Example Running-Conguration.......................................................................................566

Debugging and Verifying MSTP Congurations........................................................................................................ 568

Contents

19

30 Multicast Features................................................................................................................................... 570

Enabling IP Multicast.....................................................................................................................................................570

Implementation Information..........................................................................................................................................570

Multicast Policies............................................................................................................................................................571

IPv4 Multicast Policies.............................................................................................................................................571

Understanding Multicast Traceroute (mtrace)...........................................................................................................578

Important Points to Remember..............................................................................................................................579

Printing Multicast Traceroute (mtrace) Paths............................................................................................................579

Supported Error Codes.................................................................................................................................................580

mtrace Scenarios............................................................................................................................................................581

31 Object Tracking........................................................................................................................................ 587

Object Tracking Overview.............................................................................................................................................587

Track Layer 2 Interfaces..........................................................................................................................................588

Track Layer 3 Interfaces..........................................................................................................................................588

Track IPv4 and IPv6 Routes...................................................................................................................................589

Set Tracking Delays................................................................................................................................................. 590

VRRP Object Tracking............................................................................................................................................ 590

Object Tracking Conguration..................................................................................................................................... 590

Tracking a Layer 2 Interface................................................................................................................................... 590

Tracking a Layer 3 Interface....................................................................................................................................591

Track an IPv4/IPv6 Route...................................................................................................................................... 593

Displaying Tracked Objects...........................................................................................................................................596

32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................598

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

Autonomous System (AS) Areas........................................................................................................................... 598

Area Types................................................................................................................................................................ 599

Networks and Neighbors........................................................................................................................................600

Router Types............................................................................................................................................................ 600

Designated and Backup Designated Routers....................................................................................................... 602

Link-State Advertisements (LSAs)........................................................................................................................602

Router Priority and Cost.........................................................................................................................................603

OSPF with Dell Networking OS...................................................................................................................................604

Graceful Restart...................................................................................................................................................... 605

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................606

Multi-Process OSPFv2 with VRF..........................................................................................................................606

RFC-2328 Compliant OSPF Flooding................................................................................................................... 606

OSPF ACK Packing................................................................................................................................................. 607

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 607

Conguration Information.............................................................................................................................................608

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 608

Conguration Task List for OSPFv3 (OSPF for IPv6)...............................................................................................622

Enabling IPv6 Unicast Routing...............................................................................................................................623

Assigning IPv6 Addresses on an Interface............................................................................................................623

20

Contents

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