Dell PowerSwitch S6100-ON User guide

Dell Conguration Guide for the S6100–ON

System

9.11(2.0P1)

Notes, cautions, and warnings

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

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

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

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2017 - 05

Rev. A00

Contents

1 About this Guide...........................................................................................................................................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...........................................................................................................................................158

Congure BFD for BGP...........................................................................................................................................160

6

Contents

Congure BFD for VRRP.........................................................................................................................................167

Conguring Protocol Liveness................................................................................................................................ 170

Troubleshooting BFD................................................................................................................................................170

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................172

Autonomous Systems (AS)........................................................................................................................................... 172

Sessions and Peers.........................................................................................................................................................174

Establish a Session....................................................................................................................................................174

Route Reectors.............................................................................................................................................................175

BGP Attributes................................................................................................................................................................176

Best Path Selection Criteria.................................................................................................................................... 176

Weight........................................................................................................................................................................178

Local Preference....................................................................................................................................................... 178

Multi-Exit Discriminators (MEDs)...........................................................................................................................179

Origin..........................................................................................................................................................................180

AS Path.......................................................................................................................................................................181

Next Hop....................................................................................................................................................................181

Multiprotocol BGP...........................................................................................................................................................181

Implement BGP with Dell Networking OS...................................................................................................................182

Additional Path (Add-Path) Support......................................................................................................................182

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 182

Ignore Router-ID in Best-Path Calculation............................................................................................................ 183

Four-Byte AS Numbers............................................................................................................................................183

AS4 Number Representation.................................................................................................................................. 183

AS Number Migration.............................................................................................................................................. 185

BGP4 Management Information Base (MIB)........................................................................................................186

Important Points to Remember.............................................................................................................................. 186

Conguration Information..............................................................................................................................................187

BGP Conguration..........................................................................................................................................................187

Enabling BGP............................................................................................................................................................ 188

Conguring AS4 Number Representations............................................................................................................191

Conguring Peer Groups.........................................................................................................................................193

Conguring BGP Fast Fall-Over.............................................................................................................................195

Conguring Passive Peering....................................................................................................................................197

Maintaining Existing AS Numbers During an AS Migration................................................................................. 197

Allowing an AS Number to Appear in its Own AS Path.......................................................................................198

Enabling Graceful Restart....................................................................................................................................... 199

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

Filtering on an AS-Path Attribute.......................................................................................................................... 200

Regular Expressions as Filters................................................................................................................................202

Redistributing Routes..............................................................................................................................................203

Enabling Additional Paths....................................................................................................................................... 204

Conguring IP Community Lists............................................................................................................................ 204

Conguring an IP Extended Community List....................................................................................................... 205

Filtering Routes with Community Lists................................................................................................................. 206

Manipulating the COMMUNITY Attribute............................................................................................................ 207

Contents

7

Changing MED Attributes.......................................................................................................................................208

Changing the LOCAL_PREFERENCE Attribute..................................................................................................208

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............ 209

Changing the WEIGHT Attribute............................................................................................................................210

Enabling Multipath....................................................................................................................................................210

Filtering BGP Routes................................................................................................................................................210

Filtering BGP Routes Using Route Maps...............................................................................................................212

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 212

Conguring BGP Route Reectors........................................................................................................................ 213

Aggregating Routes..................................................................................................................................................214

Conguring BGP Confederations........................................................................................................................... 214

Enabling Route Flap Dampening.............................................................................................................................215

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

Enabling BGP Neighbor Soft-Reconguration......................................................................................................217

Enabling or disabling BGP neighbors......................................................................................................................218

Route Map Continue............................................................................................................................................... 220

Enabling MBGP Congurations................................................................................................................................... 220

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor.......................................... 221

BGP Regular Expression Optimization.........................................................................................................................221

Debugging BGP.............................................................................................................................................................. 221

Storing Last and Bad PDUs....................................................................................................................................222

Capturing PDUs....................................................................................................................................................... 223

PDU Counters.......................................................................................................................................................... 224

Sample Congurations.................................................................................................................................................. 224

9 Content Addressable Memory (CAM).........................................................................................................231

CAM Allocation............................................................................................................................................................... 231

Test CAM Usage............................................................................................................................................................ 233

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

View CAM Usage...........................................................................................................................................................234

CAM Optimization......................................................................................................................................................... 235

Troubleshoot CAM Proling..........................................................................................................................................235

QoS CAM Region Limitation...................................................................................................................................235

Syslog Error When the Table is Full....................................................................................................................... 235

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................236

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................236

Unied Forwarding Table (UFT) Modes......................................................................................................................236

Conguring UFT Modes..........................................................................................................................................236

10 Control Plane Policing (CoPP)................................................................................................................. 238

Congure Control Plane Policing................................................................................................................................. 239

Conguring CoPP for Protocols............................................................................................................................ 240

Conguring CoPP for CPU Queues...................................................................................................................... 242

Protocol to CPU Queue Mapping.......................................................................................................................... 243

Conguring Protocol to CPU Queue Mapping.....................................................................................................243

Displaying CoPP Conguration ............................................................................................................................. 244

8

Contents

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

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

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

Enhanced Transmission Selection..........................................................................................................................248

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................249

Data Center Bridging in a Trac Flow.................................................................................................................. 250

Enabling Data Center Bridging.....................................................................................................................................250

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

Data Center Bridging: Default Conguration.............................................................................................................. 251

Conguring Priority-Based Flow Control....................................................................................................................252

Conguring Lossless Queues................................................................................................................................. 253

Conguring PFC in a DCB Map................................................................................................................................... 254

PFC Conguration Notes........................................................................................................................................254

PFC Prerequisites and Restrictions.......................................................................................................................255

Applying a DCB Map on a Port....................................................................................................................................255

Conguring PFC without a DCB Map.........................................................................................................................256

Priority-Based Flow Control Using Dynamic Buer Method................................................................................... 256

Pause and Resume of Trac..................................................................................................................................256

Buer Sizes for Lossless or PFC Packets.............................................................................................................257

Shared headroom for lossless or PFC packets...........................................................................................................257

Example Scenario.................................................................................................................................................... 258

Conguring Shared Head Room Buer................................................................................................................ 259

Viewing Shared Head Room Usage.......................................................................................................................259

Monitoring Buer Statistics for Tracking Purposes............................................................................................ 260

Behavior of Tagged Packets.........................................................................................................................................260

SNMP Support for PFC and Buer Statistics Tracking............................................................................................ 261

Performing PFC Using DSCP Bits Instead of 802.1p Bits......................................................................................... 261

Conguration Example for DSCP and PFC Priorities................................................................................................262

Using PFC to Manage Converged Ethernet Trac...................................................................................................262

Generation of PFC for a Priority for Untagged Packets...........................................................................................262

Congure Enhanced Transmission Selection..............................................................................................................263

Creating an ETS Priority Group..............................................................................................................................263

ETS Operation with DCBx......................................................................................................................................264

Conguring ETS in a DCB Map..............................................................................................................................264

Hierarchical Scheduling in ETS Output Policies.........................................................................................................266

Using ETS to Manage Converged Ethernet Trac...................................................................................................266

Applying DCB Policies in a Switch Stack.................................................................................................................... 266

Congure a DCBx Operation........................................................................................................................................266

DCBx Operation....................................................................................................................................................... 267

DCBx Port Roles...................................................................................................................................................... 267

DCB Conguration Exchange................................................................................................................................ 268

Conguration Source Election............................................................................................................................... 269

Propagation of DCB Information........................................................................................................................... 269

Auto-Detection and Manual Conguration of the DCBx Version.......................................................................270

DCBx Example..........................................................................................................................................................270

Contents

9

DCBx Prerequisites and Restrictions......................................................................................................................271

Conguring DCBx.....................................................................................................................................................271

Verifying the DCB Conguration..................................................................................................................................275

QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 282

Conguring the Dynamic Buer Method....................................................................................................................282

Sample DCB Conguration...........................................................................................................................................283

PFC and ETS Conguration Command Examples...............................................................................................285

12 Dynamic Host Conguration Protocol (DHCP).........................................................................................286

DHCP Packet Format and Options............................................................................................................................. 286

Assign an IP Address using DHCP...............................................................................................................................288

Implementation Information..........................................................................................................................................289

Congure the System to be a DHCP Server..............................................................................................................289

Conguring the Server for Automatic Address Allocation..................................................................................290

Specifying a Default Gateway.................................................................................................................................291

Congure a Method of Hostname Resolution...................................................................................................... 291

Using DNS for Address Resolution.........................................................................................................................291

Using NetBIOS WINS for Address Resolution..................................................................................................... 292

Creating Manual Binding Entries............................................................................................................................292

Debugging the DHCP Server................................................................................................................................. 292

Using DHCP Clear Commands...............................................................................................................................293

Congure the System to be a DHCP Client............................................................................................................... 293

Conguring the DHCP Client System...................................................................................................................293

DHCP Client on a Management Interface............................................................................................................295

DHCP Client Operation with Other Features.......................................................................................................295

Congure the System for User Port Stacking (Option 230)................................................................................... 296

Congure Secure DHCP...............................................................................................................................................296

Option 82.................................................................................................................................................................. 297

DHCP Snooping....................................................................................................................................................... 297

Drop DHCP Packets on Snooped VLANs Only....................................................................................................300

Dynamic ARP Inspection......................................................................................................................................... 301

Conguring Dynamic ARP Inspection................................................................................................................... 302

Source Address Validation............................................................................................................................................ 303

Enabling IP Source Address Validation..................................................................................................................303

DHCP MAC Source Address Validation................................................................................................................ 304

Enabling IP+MAC Source Address Validation.......................................................................................................304

Viewing the Number of SAV Dropped Packets................................................................................................... 305

Clearing the Number of SAV Dropped Packets...................................................................................................305

13 Equal Cost Multi-Path (ECMP)................................................................................................................306

ECMP for Flow-Based Anity.....................................................................................................................................306

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

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

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

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

Modifying the ECMP Group Threshold................................................................................................................ 308

10

Contents

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

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

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

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

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

14 FIP Snooping.............................................................................................................................................314

Fibre Channel over Ethernet.........................................................................................................................................314

Ensure Robustness in a Converged Ethernet Network.............................................................................................314

FIP Snooping on Ethernet Bridges...............................................................................................................................316

Using FIP Snooping........................................................................................................................................................ 318

FIP Snooping Prerequisites......................................................................................................................................318

Important Points to Remember.............................................................................................................................. 318

Enabling the FCoE Transit Feature.........................................................................................................................319

Enable FIP Snooping on VLANs.............................................................................................................................320

Congure the FC-MAP Value................................................................................................................................ 320

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................320

Congure a Port for a Bridge-to-FCF Link...........................................................................................................320

Impact on Other Software Features...................................................................................................................... 321

FIP Snooping Restrictions....................................................................................................................................... 321

Conguring FIP Snooping........................................................................................................................................321

Displaying FIP Snooping Information...........................................................................................................................322

FCoE Transit Conguration Example...........................................................................................................................327

15 Flex Hash and Optimized Boot-Up............................................................................................................329

Flex Hash Capability Overview.....................................................................................................................................329

Conguring the Flex Hash Mechanism.......................................................................................................................329

Conguring Fast Boot and LACP Fast Switchover...................................................................................................330

Optimizing the Boot Time.............................................................................................................................................330

Booting Process When Optimized Boot Time Mechanism is Enabled..............................................................330

Guidelines for Conguring Optimized Booting Mechanism.................................................................................331

Interoperation of Applications with Fast Boot and System States..........................................................................332

LACP and IPv4 Routing.......................................................................................................................................... 332

LACP and IPv6 Routing.......................................................................................................................................... 332

BGP Graceful Restart............................................................................................................................................. 333

Cold Boot Caused by Power Cycling the System................................................................................................333

Unexpected Reload of the System........................................................................................................................333

Software Upgrade................................................................................................................................................... 333

LACP Fast Switchover............................................................................................................................................333

Changes to BGP Multipath.....................................................................................................................................334

Delayed Installation of ECMP Routes Into BGP...................................................................................................334

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................334

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces......................................................................................335

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 336

Protocol Overview.........................................................................................................................................................336

Contents

11

Ring Status............................................................................................................................................................... 337

Multiple FRRP Rings................................................................................................................................................337

Important FRRP Points...........................................................................................................................................338

Important FRRP Concepts..................................................................................................................................... 339

Implementing FRRP.......................................................................................................................................................340

FRRP Conguration...................................................................................................................................................... 340

Creating the FRRP Group.......................................................................................................................................340

Conguring the Control VLAN................................................................................................................................341

Conguring and Adding the Member VLANs.......................................................................................................342

Setting the FRRP Timers........................................................................................................................................343

Clearing the FRRP Counters..................................................................................................................................343

Viewing the FRRP Conguration...........................................................................................................................343

Viewing the FRRP Information...............................................................................................................................344

Troubleshooting FRRP.................................................................................................................................................. 344

Conguration Checks..............................................................................................................................................344

Sample Conguration and Topology............................................................................................................................344

FRRP Support on VLT...................................................................................................................................................346

Example Scenario.................................................................................................................................................... 346

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

17 GARP VLAN Registration Protocol (GVRP)..............................................................................................349

Important Points to Remember................................................................................................................................... 349

Congure GVRP............................................................................................................................................................ 350

Related Conguration Tasks...................................................................................................................................350

Enabling GVRP Globally.................................................................................................................................................351

Enabling GVRP on a Layer 2 Interface.........................................................................................................................351

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

Congure a GARP Timer.............................................................................................................................................. 352

18 Internet Group Management Protocol (IGMP)......................................................................................... 353

IGMP Implementation Information.............................................................................................................................. 353

IGMP Protocol Overview..............................................................................................................................................353

IGMP Version 2........................................................................................................................................................ 353

IGMP Version 3........................................................................................................................................................355

Congure IGMP............................................................................................................................................................. 358

Related Conguration Tasks...................................................................................................................................358

Viewing IGMP Enabled Interfaces...............................................................................................................................359

Selecting an IGMP Version...........................................................................................................................................359

Viewing IGMP Groups...................................................................................................................................................359

Adjusting Timers............................................................................................................................................................ 360

Adjusting Query and Response Timers................................................................................................................. 360

Enabling IGMP Immediate-Leave................................................................................................................................. 361

IGMP Snooping...............................................................................................................................................................361

IGMP Snooping Implementation Information........................................................................................................361

Conguring IGMP Snooping................................................................................................................................... 361

Removing a Group-Port Association.....................................................................................................................362

12

Contents

Disabling Multicast Flooding...................................................................................................................................362

Specifying a Port as Connected to a Multicast Router...................................................................................... 362

Conguring the Switch as Querier........................................................................................................................ 363

Fast Convergence after MSTP Topology Changes...................................................................................................363

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................364

Protocol Separation.................................................................................................................................................364

Enabling and Disabling Management Egress Interface Selection......................................................................365

Handling of Management Route Conguration................................................................................................... 366

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

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

Handling of Transit Trac (Trac Separation).................................................................................................... 368

Mapping of Management Applications and Trac Type.....................................................................................368

Behavior of Various Applications for Switch-Initiated Trac ............................................................................369

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

Interworking of EIS With Various Applications......................................................................................................371

Designating a Multicast Router Interface....................................................................................................................371

19 Interfaces................................................................................................................................................. 372

Basic Interface Conguration....................................................................................................................................... 372

Advanced Interface Conguration............................................................................................................................... 372

Interface Types............................................................................................................................................................... 373

View Basic Interface Information................................................................................................................................. 373

Resetting an Interface to its Factory Default State...................................................................................................375

Enabling a Physical Interface........................................................................................................................................376

Physical Interfaces.........................................................................................................................................................376

Conguration Task List for Physical Interfaces.................................................................................................... 376

Overview of Layer Modes.......................................................................................................................................377

Conguring Layer 2 (Data Link) Mode.................................................................................................................. 377

Conguring Layer 2 (Interface) Mode...................................................................................................................378

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

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

Egress Interface Selection (EIS).................................................................................................................................. 379

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

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

Management Interfaces................................................................................................................................................380

Conguring Management Interfaces.................................................................................................................... 380

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

S6100 — OIR........................................................................................................................................................... 382

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

Loopback Interfaces......................................................................................................................................................383

Null Interfaces................................................................................................................................................................ 384

Port Channel Interfaces................................................................................................................................................ 384

Port Channel Denition and Standards.................................................................................................................384

Port Channel Benets.............................................................................................................................................384

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

Interfaces in Port Channels.................................................................................................................................... 385

Contents

13

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

Creating a Port Channel......................................................................................................................................... 386

Adding a Physical Interface to a Port Channel.....................................................................................................386

Reassigning an Interface to a New Port Channel................................................................................................388

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

Adding or Removing a Port Channel from a VLAN............................................................................................. 389

Assigning an IP Address to a Port Channel.......................................................................................................... 390

Deleting or Disabling a Port Channel.....................................................................................................................390

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

Load-Balancing Method.......................................................................................................................................... 391

Changing the Hash Algorithm.................................................................................................................................391

Bulk Conguration......................................................................................................................................................... 392

Interface Range........................................................................................................................................................392

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

Dening Interface Range Macros................................................................................................................................ 394

Dene the Interface Range.................................................................................................................................... 395

Choosing an Interface-Range Macro....................................................................................................................395

Monitoring and Maintaining Interfaces....................................................................................................................... 395

Split 40G Ports on a 16X40G QSFP+ Module........................................................................................................... 396

Splitting 100G Ports.......................................................................................................................................................397

Link Dampening..............................................................................................................................................................398

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

Enabling Link Dampening........................................................................................................................................398

Link Bundle Monitoring................................................................................................................................................. 400

Using Ethernet Pause Frames for Flow Control........................................................................................................ 400

Enabling Pause Frames............................................................................................................................................401

Congure the MTU Size on an Interface.....................................................................................................................401

Port-Pipes.......................................................................................................................................................................402

CR4 Auto-Negotiation...................................................................................................................................................402

FEC Conguration......................................................................................................................................................... 403

Setting the Speed of Ethernet Interfaces..................................................................................................................405

Adjusting the Keepalive Timer......................................................................................................................................406

View Advanced Interface Information.........................................................................................................................406

Conguring the Interface Sampling Size...............................................................................................................407

Conguring the Trac Sampling Size Globally.......................................................................................................... 408

Dynamic Counters......................................................................................................................................................... 409

Clearing Interface Counters.................................................................................................................................... 410

Enhanced Validation of Interface Ranges....................................................................................................................410

Compressing Conguration Files...................................................................................................................................411

20 IPv4 Routing.............................................................................................................................................414

IP Addresses....................................................................................................................................................................415

Implementation Information.................................................................................................................................... 415

Conguration Tasks for IP Addresses.......................................................................................................................... 415

Assigning IP Addresses to an Interface....................................................................................................................... 415

Conguring Static Routes............................................................................................................................................. 416

14

Contents

Congure Static Routes for the Management Interface...........................................................................................417

Using the Congured Source IP Address in ICMP Messages...................................................................................418

Conguring the ICMP Source Interface................................................................................................................ 418

Conguring the Duration to Establish a TCP Connection......................................................................................... 418

Enabling Directed Broadcast.........................................................................................................................................419

Resolution of Host Names............................................................................................................................................ 419

Enabling Dynamic Resolution of Host Names.............................................................................................................419

Specifying the Local System Domain and a List of Domains................................................................................... 420

Conguring DNS with Traceroute................................................................................................................................420

ARP.................................................................................................................................................................................. 421

Conguration Tasks for ARP......................................................................................................................................... 421

Conguring Static ARP Entries.....................................................................................................................................421

Enabling Proxy ARP.......................................................................................................................................................422

Clearing ARP Cache...................................................................................................................................................... 422

ARP Learning via Gratuitous ARP................................................................................................................................422

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

ARP Learning via ARP Request................................................................................................................................... 423

Conguring ARP Retries............................................................................................................................................... 424

ICMP................................................................................................................................................................................424

Conguration Tasks for ICMP...................................................................................................................................... 424

Enabling ICMP Unreachable Messages...................................................................................................................... 424

UDP Helper.....................................................................................................................................................................425

Congure UDP Helper.............................................................................................................................................425

Important Points to Remember............................................................................................................................. 425

Enabling UDP Helper.....................................................................................................................................................425

Conguring a Broadcast Address................................................................................................................................ 425

Congurations Using UDP Helper............................................................................................................................... 426

UDP Helper with Broadcast-All Addresses.................................................................................................................426

UDP Helper with Subnet Broadcast Addresses.........................................................................................................427

UDP Helper with Congured Broadcast Addresses.................................................................................................. 427

UDP Helper with No Congured Broadcast Addresses............................................................................................428

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

21 IPv6 Routing............................................................................................................................................ 429

Protocol Overview.........................................................................................................................................................429

Extended Address Space........................................................................................................................................430

Stateless Autoconguration................................................................................................................................... 430

IPv6 Headers............................................................................................................................................................430

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 431

IPv6 Header Fields...................................................................................................................................................432

Extension Header Fields..........................................................................................................................................434

Addressing................................................................................................................................................................ 435

Implementing IPv6 with Dell Networking OS.............................................................................................................436

ICMPv6...........................................................................................................................................................................436

Path MTU Discovery.....................................................................................................................................................436

IPv6 Neighbor Discovery.............................................................................................................................................. 437

Contents

15

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................437

Conguring the IPv6 Recursive DNS Server........................................................................................................437

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 438

Displaying IPv6 RDNSS Information......................................................................................................................439

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 439

Conguration Tasks for IPv6........................................................................................................................................ 440

Adjusting Your CAM-Prole....................................................................................................................................440

Assigning an IPv6 Address to an Interface............................................................................................................441

Assigning a Static IPv6 Route.................................................................................................................................441

Conguring Telnet with IPv6..................................................................................................................................442

SNMP over IPv6......................................................................................................................................................442

Displaying IPv6 Information.................................................................................................................................... 442

Displaying an IPv6 Interface Information.............................................................................................................. 443

Showing IPv6 Routes..............................................................................................................................................444

Showing the Running-Conguration for an Interface.........................................................................................445

Clearing IPv6 Routes...............................................................................................................................................445

Disabling ND Entry Timeout................................................................................................................................... 446

Conguring IPv6 RA Guard.......................................................................................................................................... 446

Conguring IPv6 RA Guard on an Interface.........................................................................................................448

Monitoring IPv6 RA Guard......................................................................................................................................448

22 iSCSI Optimization...................................................................................................................................449

iSCSI Optimization Overview....................................................................................................................................... 449

Monitoring iSCSI Trac Flows................................................................................................................................451

Application of Quality of Service to iSCSI Trac Flows...................................................................................... 451

Information Monitored in iSCSI Trac Flows........................................................................................................451

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 452

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................452

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................453

Enable and Disable iSCSI Optimization................................................................................................................. 453

Default iSCSI Optimization Values...............................................................................................................................454

iSCSI Optimization Prerequisites................................................................................................................................. 454

Conguring iSCSI Optimization................................................................................................................................... 454

Displaying iSCSI Optimization Information................................................................................................................. 456

23 Intermediate System to Intermediate System.......................................................................................... 458

IS-IS Protocol Overview............................................................................................................................................... 458

IS-IS Addressing.............................................................................................................................................................458

Multi-Topology IS-IS...................................................................................................................................................... 459

Transition Mode....................................................................................................................................................... 459

Interface Support.................................................................................................................................................... 460

Adjacencies...............................................................................................................................................................460

Graceful Restart............................................................................................................................................................ 460

Timers....................................................................................................................................................................... 460

Implementation Information......................................................................................................................................... 460

Conguration Information..............................................................................................................................................461

16

Contents

Conguration Tasks for IS-IS..................................................................................................................................462

Conguring the Distance of a Route.....................................................................................................................469

Changing the IS-Type.............................................................................................................................................. 470

Redistributing IPv4 Routes..................................................................................................................................... 472

Redistributing IPv6 Routes..................................................................................................................................... 473

Conguring Authentication Passwords................................................................................................................. 474

Setting the Overload Bit..........................................................................................................................................474

Debugging IS-IS....................................................................................................................................................... 475

IS-IS Metric Styles.........................................................................................................................................................476

Congure Metric Values................................................................................................................................................476

Maximum Values in the Routing Table...................................................................................................................477

Change the IS-IS Metric Style in One Level Only................................................................................................ 477

Leaks from One Level to Another.......................................................................................................................... 478

Sample Congurations.................................................................................................................................................. 479

24 Link Aggregation Control Protocol (LACP)...............................................................................................482

Introduction to Dynamic LAGs and LACP...................................................................................................................482

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

LACP Modes............................................................................................................................................................ 483

Conguring LACP Commands............................................................................................................................... 483

LACP Conguration Tasks............................................................................................................................................ 484

Creating a LAG.........................................................................................................................................................484

Conguring the LAG Interfaces as Dynamic........................................................................................................ 484

Setting the LACP Long Timeout........................................................................................................................... 485

Monitoring and Debugging LACP..........................................................................................................................485

Shared LAG State Tracking.......................................................................................................................................... 486

Conguring Shared LAG State Tracking...............................................................................................................486

Important Points about Shared LAG State Tracking........................................................................................... 488

LACP Basic Conguration Example............................................................................................................................ 488

Congure a LAG on ALPHA................................................................................................................................... 488

25 Layer 2.....................................................................................................................................................497

Manage the MAC Address Table..................................................................................................................................497

Clearing the MAC Address Table........................................................................................................................... 497

Setting the Aging Time for Dynamic Entries........................................................................................................ 497

Conguring a Static MAC Address........................................................................................................................498

Displaying the MAC Address Table........................................................................................................................ 498

MAC Learning Limit.......................................................................................................................................................498

Setting the MAC Learning Limit............................................................................................................................ 499

mac learning-limit Dynamic.................................................................................................................................... 499

mac learning-limit mac-address-sticky................................................................................................................. 499

mac learning-limit station-move............................................................................................................................ 500

mac learning-limit no-station-move...................................................................................................................... 500

Learning Limit Violation Actions.............................................................................................................................500

Setting Station Move Violation Actions.................................................................................................................501

Recovering from Learning Limit and Station Move Violations............................................................................501

Contents

17

Disabling MAC Address Learning on the System................................................................................................ 502

NIC Teaming................................................................................................................................................................... 502

Congure Redundant Pairs.......................................................................................................................................... 503

Important Points about Conguring Redundant Pairs........................................................................................505

Far-End Failure Detection.............................................................................................................................................506

FEFD State Changes...............................................................................................................................................507

Conguring FEFD.................................................................................................................................................... 508

Enabling FEFD on an Interface.............................................................................................................................. 508

Debugging FEFD......................................................................................................................................................509

26 Link Layer Discovery Protocol (LLDP).......................................................................................................511

802.1AB (LLDP) Overview............................................................................................................................................. 511

Protocol Data Units...................................................................................................................................................511

Optional TLVs..................................................................................................................................................................512

Management TLVs................................................................................................................................................... 512

TIA-1057 (LLDP-MED) Overview................................................................................................................................. 514

TIA Organizationally Specic TLVs......................................................................................................................... 514

Congure LLDP.............................................................................................................................................................. 518

Related Conguration Tasks....................................................................................................................................518

Important Points to Remember.............................................................................................................................. 518

LLDP Compatibility...................................................................................................................................................518

CONFIGURATION versus INTERFACE Congurations.............................................................................................518

Enabling LLDP.................................................................................................................................................................519

Disabling and Undoing LLDP...................................................................................................................................519

Enabling LLDP on Management Ports........................................................................................................................520

Disabling and Undoing LLDP on Management Ports..........................................................................................520

Advertising TLVs............................................................................................................................................................ 520

Viewing the LLDP Conguration.................................................................................................................................. 521

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 522

Conguring LLDPDU Intervals..................................................................................................................................... 523

Conguring Transmit and Receive Mode....................................................................................................................523

Conguring the Time to Live Value............................................................................................................................. 524

Debugging LLDP............................................................................................................................................................525

Relevant Management Objects................................................................................................................................... 526

27 Microsoft Network Load Balancing...........................................................................................................531

NLB Unicast Mode Scenario.........................................................................................................................................531

NLB Multicast Mode Scenario......................................................................................................................................531

Limitations of the NLB Feature....................................................................................................................................532

Microsoft Clustering......................................................................................................................................................532

Enable and Disable VLAN Flooding ............................................................................................................................ 532

Conguring a Switch for NLB .....................................................................................................................................532

Enabling a Switch for Multicast NLB.................................................................................................................... 533

28 Multicast Source Discovery Protocol (MSDP)......................................................................................... 534

Protocol Overview.........................................................................................................................................................534

18

Contents

Anycast RP.....................................................................................................................................................................535

Implementation Information......................................................................................................................................... 536

Congure Multicast Source Discovery Protocol........................................................................................................536

Related Conguration Tasks...................................................................................................................................536

Enable MSDP.................................................................................................................................................................540

Manage the Source-Active Cache...............................................................................................................................541

Viewing the Source-Active Cache......................................................................................................................... 541

Limiting the Source-Active Cache......................................................................................................................... 541

Clearing the Source-Active Cache........................................................................................................................ 542

Enabling the Rejected Source-Active Cache....................................................................................................... 542

Accept Source-Active Messages that Fail the RFP Check......................................................................................542

Specifying Source-Active Messages...........................................................................................................................545

Limiting the Source-Active Messages from a Peer...................................................................................................546

Preventing MSDP from Caching a Local Source.......................................................................................................546

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

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

Logging Changes in Peership States...........................................................................................................................548

Terminating a Peership..................................................................................................................................................548

Clearing Peer Statistics.................................................................................................................................................549

Debugging MSDP..........................................................................................................................................................549

MSDP with Anycast RP................................................................................................................................................550

Conguring Anycast RP................................................................................................................................................ 551

Reducing Source-Active Message Flooding.........................................................................................................552

Specifying the RP Address Used in SA Messages.............................................................................................. 552

MSDP Sample Congurations..................................................................................................................................... 554

29 Multiple Spanning Tree Protocol (MSTP).................................................................................................557

Protocol Overview.........................................................................................................................................................557

Spanning Tree Variations.............................................................................................................................................. 558

Implementation Information................................................................................................................................... 558

Congure Multiple Spanning Tree Protocol................................................................................................................558

Related Conguration Tasks...................................................................................................................................559

Enable Multiple Spanning Tree Globally...................................................................................................................... 559

Adding and Removing Interfaces.................................................................................................................................559

Creating Multiple Spanning Tree Instances................................................................................................................560

Inuencing MSTP Root Selection............................................................................................................................... 560

Interoperate with Non-Dell Bridges..............................................................................................................................561

Changing the Region Name or Revision......................................................................................................................561

Modifying Global Parameters.......................................................................................................................................562

Modifying the Interface Parameters........................................................................................................................... 563

Conguring an EdgePort.............................................................................................................................................. 564

Flush MAC Addresses after a Topology Change....................................................................................................... 565

MSTP Sample Congurations......................................................................................................................................565

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

CongurationSFTOS Example Running-Conguration.......................................................................................565

Debugging and Verifying MSTP Congurations........................................................................................................ 567

Contents

19

30 Multicast Features...................................................................................................................................569

Enabling IP Multicast.....................................................................................................................................................569

Implementation Information......................................................................................................................................... 569

Multicast Policies........................................................................................................................................................... 570

IPv4 Multicast Policies............................................................................................................................................ 570

Understanding Multicast Traceroute (mtrace)...........................................................................................................577

Important Points to Remember..............................................................................................................................578

Printing Multicast Traceroute (mtrace) Paths............................................................................................................578

Supported Error Codes................................................................................................................................................. 579

mtrace Scenarios...........................................................................................................................................................580

31 Object Tracking........................................................................................................................................ 586

Object Tracking Overview............................................................................................................................................ 586

Track Layer 2 Interfaces..........................................................................................................................................587

Track Layer 3 Interfaces..........................................................................................................................................587

Track IPv4 and IPv6 Routes................................................................................................................................... 588

Set Tracking Delays................................................................................................................................................. 589

VRRP Object Tracking............................................................................................................................................ 589

Object Tracking Conguration..................................................................................................................................... 589

Tracking a Layer 2 Interface................................................................................................................................... 589

Tracking a Layer 3 Interface................................................................................................................................... 590

Track an IPv4/IPv6 Route...................................................................................................................................... 592

Displaying Tracked Objects...........................................................................................................................................595

32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................597

Protocol Overview......................................................................................................................................................... 597

Autonomous System (AS) Areas............................................................................................................................597

Area Types................................................................................................................................................................ 598

Networks and Neighbors........................................................................................................................................599

Router Types............................................................................................................................................................ 599

Designated and Backup Designated Routers........................................................................................................601

Link-State Advertisements (LSAs).........................................................................................................................601

Router Priority and Cost.........................................................................................................................................602

OSPF with Dell Networking OS...................................................................................................................................603

Graceful Restart...................................................................................................................................................... 604

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................605

Multi-Process OSPFv2 with VRF..........................................................................................................................605

RFC-2328 Compliant OSPF Flooding................................................................................................................... 605

OSPF ACK Packing................................................................................................................................................. 606

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 606

Conguration Information.............................................................................................................................................607

Conguration Task List for OSPFv2 (OSPF for IPv4).........................................................................................607

Conguration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 621

Enabling IPv6 Unicast Routing...............................................................................................................................622

Assigning IPv6 Addresses on an Interface............................................................................................................622

20

Contents

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