Dell PowerSwitch S4810P User guide

Dell Conguration Guide for the S4810 System

9.8(0.0)

Notes, cautions, and warnings

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

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

problem.

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

Dell

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and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may

be trademarks of their respective companies.

2015 - 05

Rev. A00

Contents

1 About this Guide............................................................................................................ 33

Audience.......................................................................................................................................................................... 33

Conventions..................................................................................................................................................................... 33

Related Documents.......................................................................................................................................................... 33

2 Conguration Fundamentals..........................................................................................34

Accessing the Command Line.......................................................................................................................................... 34

CLI Modes........................................................................................................................................................................34

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

The do Command.............................................................................................................................................................38

Undoing Commands.........................................................................................................................................................39

Obtaining Help..................................................................................................................................................................40

Entering and Editing Commands...................................................................................................................................... 40

Command History............................................................................................................................................................. 41

Filtering show Command Outputs.....................................................................................................................................41

Multiple Users in Conguration Mode...............................................................................................................................42

3 Getting Started............................................................................................................. 44

Console Access................................................................................................................................................................ 44

Serial Console.............................................................................................................................................................44

Accessing the CLI Interface and Running Scripts Using SSH........................................................................................... 45

Entering CLI commands Using an SSH Connection....................................................................................................45

Executing Local CLI Scripts Using an SSH Connection.............................................................................................. 45

Default Conguration....................................................................................................................................................... 46

Conguring a Host Name.................................................................................................................................................46

Accessing the System Remotely...................................................................................................................................... 46

Accessing the System Remotely................................................................................................................................ 46

Congure the Management Port IP Address.............................................................................................................. 47

Congure a Management Route.................................................................................................................................47

Conguring a Username and Password...................................................................................................................... 47

Conguring the Enable Password..................................................................................................................................... 47

Conguration File Management........................................................................................................................................48

Copy Files to and from the System.............................................................................................................................48

Mounting an NFS File System.................................................................................................................................... 49

Save the Running-Conguration................................................................................................................................ 50

Congure the Overload Bit for a Startup Scenario......................................................................................................51

Viewing Files............................................................................................................................................................... 51

Compressing Conguration Files................................................................................................................................ 52

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

Enabling Software Features on Devices Using a Command Option..................................................................................55

View Command History....................................................................................................................................................56

Upgrading Dell Networking OS.........................................................................................................................................56

3

Using Hashes to Validate Software Images...................................................................................................................... 56

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

4 Management.................................................................................................................59

Conguring Privilege Levels............................................................................................................................................. 59

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 the Following Modes....................................................................................................................60

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

Applying a Privilege Level to a Terminal Line............................................................................................................... 62

Conguring Logging......................................................................................................................................................... 62

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

Conguring Logging Format .....................................................................................................................................64

Display the Logging Buer and the Logging Conguration......................................................................................... 64

Setting Up a Secure Connection to a Syslog Server...................................................................................................65

Sending System Messages to a Syslog Server........................................................................................................... 66

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......................................................................................................... 68

Log Messages in the Internal Buer................................................................................................................................. 69

Conguration Task List for System Log Management................................................................................................ 69

Disabling System Logging.................................................................................................................................................69

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

Conguring a UNIX System as a Syslog Server.......................................................................................................... 70

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

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

Conguring a UNIX Logging Facility Level........................................................................................................................ 72

Synchronizing Log Messages............................................................................................................................................73

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

File Transfer Services........................................................................................................................................................74

Conguration Task List for File Transfer Services........................................................................................................74

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

Conguring FTP Server Parameters........................................................................................................................... 74

Conguring FTP Client Parameters............................................................................................................................ 75

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

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

Conguring Login Authentication for Terminal Lines................................................................................................... 77

Setting Time Out of EXEC Privilege Mode....................................................................................................................... 77

Using Telnet to get to Another Network Device............................................................................................................... 78

4

Lock CONFIGURATION Mode..........................................................................................................................................79

Viewing the Conguration Lock Status.......................................................................................................................79

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

Recovering from a Forgotten Enable Password..........................................................................................................80

Recovering from a Failed Start..........................................................................................................................................81

Restoring the Factory Default Settings............................................................................................................................. 81

Important Points to Remember.................................................................................................................................. 82

Restoring Factory Default Environment Variables.......................................................................................................82

5 802.1ag..........................................................................................................................84

Ethernet CFM.................................................................................................................................................................. 84

Maintenance Domains......................................................................................................................................................85

Maintenance Points..........................................................................................................................................................85

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

Implementation Information..............................................................................................................................................86

Conguring the CFM........................................................................................................................................................87

Related Conguration Tasks........................................................................................................................................87

Enabling Ethernet CFM.................................................................................................................................................... 87

Creating a Maintenance Domain.......................................................................................................................................87

Creating a Maintenance Association.................................................................................................................................88

Create Maintenance Points.............................................................................................................................................. 88

Creating a Maintenance End Point............................................................................................................................. 88

Creating a Maintenance Intermediate Point................................................................................................................89

Displaying the MP Databases..................................................................................................................................... 89

Continuity Check Messages.............................................................................................................................................90

Enabling CCM.............................................................................................................................................................91

Enabling Cross-Checking............................................................................................................................................ 91

Sending Loopback Messages and Responses................................................................................................................... 91

Sending Linktrace Messages and Responses................................................................................................................... 92

Caching Link Trace..................................................................................................................................................... 92

Enabling CFM SNMP Traps..............................................................................................................................................93

Displaying Ethernet CFM Statistics.................................................................................................................................. 94

6 802.1X........................................................................................................................... 96

The Port-Authentication Process..................................................................................................................................... 97

EAP over RADIUS...................................................................................................................................................... 98

Conguring 802.1X........................................................................................................................................................... 99

Related Conguration Tasks....................................................................................................................................... 99

Important Points to Remember........................................................................................................................................ 99

Enabling 802.1X...............................................................................................................................................................100

Conguring Request Identity Re-Transmissions............................................................................................................... 101

Conguring a Quiet Period after a Failed Authentication...........................................................................................102

Forcibly Authorizing or Unauthorizing a Port...................................................................................................................103

Re-Authenticating a Port................................................................................................................................................ 103

Conguring Timeouts......................................................................................................................................................104

Conguring Dynamic VLAN Assignment with Port Authentication................................................................................. 105

5

Guest and Authentication-Fail VLANs.............................................................................................................................106

Conguring a Guest VLAN........................................................................................................................................107

Conguring an Authentication-Fail VLAN..................................................................................................................107

7 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 109

Optimizing CAM Utilization During the Attachment of ACLs to VLANs.......................................................................... 109

Guidelines for Conguring ACL VLAN Groups................................................................................................................. 110

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...........................................................110

Conguring ACL VLAN Groups..................................................................................................................................110

Conguring FP Blocks for VLAN Parameters............................................................................................................. 111

Viewing CAM Usage........................................................................................................................................................112

Allocating FP Blocks for VLAN Processes........................................................................................................................113

8 Access Control Lists (ACLs)......................................................................................... 114

IP Access Control Lists (ACLs)........................................................................................................................................ 115

CAM Usage............................................................................................................................................................... 115

Implementing ACLs on Dell Networking OS............................................................................................................... 116

Important Points to Remember........................................................................................................................................117

Conguration Task List for Route Maps..................................................................................................................... 117

Conguring Match Routes........................................................................................................................................120

Conguring Set Conditions........................................................................................................................................121

Congure a Route Map for Route Redistribution...................................................................................................... 122

Congure a Route Map for Route Tagging................................................................................................................122

Continue Clause........................................................................................................................................................123

IP Fragment Handling......................................................................................................................................................123

IP Fragments ACL Examples.....................................................................................................................................123

Layer 4 ACL Rules Examples.....................................................................................................................................124

Congure a Standard IP ACL.......................................................................................................................................... 124

Conguring a Standard IP ACL Filter.........................................................................................................................125

Congure an Extended IP ACL........................................................................................................................................126

Conguring Filters with a Sequence Number............................................................................................................126

Conguring Filters Without a Sequence Number...................................................................................................... 128

Congure Layer 2 and Layer 3 ACLs............................................................................................................................... 128

Assign an IP ACL to an Interface.....................................................................................................................................129

Applying an IP ACL......................................................................................................................................................... 129

Counting ACL Hits.................................................................................................................................................... 130

Congure Ingress ACLs...................................................................................................................................................130

Congure Egress ACLs.................................................................................................................................................... 131

Applying Egress Layer 3 ACLs (Control-Plane)..........................................................................................................132

IP Prex Lists..................................................................................................................................................................132

Implementation Information...................................................................................................................................... 133

Conguration Task List for Prex Lists......................................................................................................................133

ACL Resequencing..........................................................................................................................................................136

Resequencing an ACL or Prex List.......................................................................................................................... 137

Route Maps.................................................................................................................................................................... 138

Implementation Information...................................................................................................................................... 138

6

Logging of ACL Processes.............................................................................................................................................. 138

Guidelines for Conguring ACL Logging....................................................................................................................139

Conguring ACL Logging.......................................................................................................................................... 140

Flow-Based Monitoring Support for ACLs...................................................................................................................... 140

Behavior of Flow-Based Monitoring...........................................................................................................................141

Enabling Flow-Based Monitoring...............................................................................................................................142

9 Bidirectional Forwarding Detection (BFD)....................................................................144

How BFD Works............................................................................................................................................................. 144

BFD Packet Format.................................................................................................................................................. 145

BFD Sessions............................................................................................................................................................146

BFD Three-Way Handshake...................................................................................................................................... 147

Session State Changes............................................................................................................................................. 149

Important Points to Remember.......................................................................................................................................149

Congure BFD................................................................................................................................................................ 149

Congure BFD for Physical Ports............................................................................................................................. 150

Congure BFD for Static Routes...............................................................................................................................153

Congure BFD for OSPF.......................................................................................................................................... 154

Congure BFD for OSPFv3.......................................................................................................................................157

Congure BFD for IS-IS............................................................................................................................................ 158

Congure BFD for BGP............................................................................................................................................ 160

Congure BFD for VRRP.......................................................................................................................................... 167

Conguring Protocol Liveness.................................................................................................................................. 169

Troubleshooting BFD.................................................................................................................................................169

10 Border Gateway Protocol IPv4 (BGPv4)..................................................................... 171

Autonomous Systems (AS)..............................................................................................................................................171

Sessions and Peers......................................................................................................................................................... 173

Establish a Session....................................................................................................................................................173

Route Reectors............................................................................................................................................................. 174

BGP Attributes................................................................................................................................................................175

Best Path Selection Criteria...................................................................................................................................... 175

Weight.......................................................................................................................................................................177

Local Preference....................................................................................................................................................... 177

Multi-Exit Discriminators (MEDs)..............................................................................................................................178

Origin........................................................................................................................................................................ 179

AS Path.....................................................................................................................................................................179

Next Hop..................................................................................................................................................................180

Multiprotocol BGP.......................................................................................................................................................... 180

Implement BGP with Dell Networking OS........................................................................................................................181

Additional Path (Add-Path) Support.......................................................................................................................... 181

Advertise IGP Cost as MED for Redistributed Routes............................................................................................... 181

Ignore Router-ID for Some Best-Path Calculations................................................................................................... 182

Four-Byte AS Numbers.............................................................................................................................................182

AS4 Number Representation.....................................................................................................................................182

AS Number Migration............................................................................................................................................... 184

7

BGP4 Management Information Base (MIB)............................................................................................................ 185

Important Points to Remember.................................................................................................................................185

Conguration Information............................................................................................................................................... 186

BGP Conguration..........................................................................................................................................................186

Enabling BGP............................................................................................................................................................ 187

Conguring AS4 Number Representations................................................................................................................190

Conguring Peer Groups...........................................................................................................................................192

Conguring BGP Fast Fall-Over................................................................................................................................194

Conguring Passive Peering..................................................................................................................................... 196

Maintaining Existing AS Numbers During an AS Migration........................................................................................ 196

Allowing an AS Number to Appear in its Own AS Path..............................................................................................197

Enabling Graceful Restart......................................................................................................................................... 198

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

Filtering on an AS-Path Attribute..............................................................................................................................199

Regular Expressions as Filters................................................................................................................................... 201

Redistributing Routes...............................................................................................................................................202

Enabling Additional Paths......................................................................................................................................... 203

Conguring IP Community Lists............................................................................................................................... 203

Conguring an IP Extended Community List............................................................................................................204

Filtering Routes with Community Lists.....................................................................................................................205

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

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

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

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

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

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

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

Filtering BGP Routes Using Route Maps...................................................................................................................210

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

Conguring BGP Route Reectors............................................................................................................................ 211

Aggregating Routes.................................................................................................................................................. 212

Conguring BGP Confederations.............................................................................................................................. 212

Enabling Route Flap Dampening................................................................................................................................213

Changing BGP Timers...............................................................................................................................................215

Enabling BGP Neighbor Soft-Reconguration...........................................................................................................216

Route Map Continue.................................................................................................................................................217

Enabling MBGP Congurations.......................................................................................................................................217

BGP Regular Expression Optimization.............................................................................................................................218

Debugging BGP.............................................................................................................................................................. 218

Storing Last and Bad PDUs.......................................................................................................................................219

Capturing PDUs....................................................................................................................................................... 220

PDU Counters...........................................................................................................................................................221

Sample Congurations....................................................................................................................................................221

11 Content Addressable Memory (CAM).........................................................................228

CAM Allocation.............................................................................................................................................................. 228

8

Test CAM Usage............................................................................................................................................................ 230

View CAM-ACL Settings................................................................................................................................................230

View CAM Usage........................................................................................................................................................... 232

CAM Optimization..........................................................................................................................................................232

Troubleshoot CAM Proling............................................................................................................................................232

CAM Prole Mismatches..........................................................................................................................................232

QoS CAM Region Limitation.....................................................................................................................................233

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

Congure Control Plane Policing.................................................................................................................................... 235

Conguring CoPP for Protocols............................................................................................................................... 236

Conguring CoPP for CPU Queues..........................................................................................................................237

CoPP for OSPFv3 Packets.......................................................................................................................................238

Conguring CoPP for OSPFv3..................................................................................................................................241

Show Commands.....................................................................................................................................................242

13 Data Center Bridging (DCB)...................................................................................... 244

Ethernet Enhancements in Data Center Bridging........................................................................................................... 244

Priority-Based Flow Control..................................................................................................................................... 245

Enhanced Transmission Selection.............................................................................................................................246

Data Center Bridging Exchange Protocol (DCBx).....................................................................................................247

Data Center Bridging in a Trac Flow.......................................................................................................................247

Enabling Data Center Bridging........................................................................................................................................247

DCB Maps and its Attributes....................................................................................................................................248

QoS dot1p Trac Classication and Queue Assignment.................................................................................................249

Data Center Bridging: Default Conguration.................................................................................................................. 250

Conguring Priority-Based Flow Control........................................................................................................................ 250

Conguring Lossless Queues.................................................................................................................................... 251

Conguring PFC in a DCB Map......................................................................................................................................252

PFC Conguration Notes......................................................................................................................................... 252

PFC Prerequisites and Restrictions.......................................................................................................................... 253

Applying a DCB Map on a Port.......................................................................................................................................254

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

Pause and Resume of Trac....................................................................................................................................254

Buer Sizes for Lossless or PFC Packets.................................................................................................................255

Conguring PFC without a DCB Map............................................................................................................................ 255

Conguring Lossless QueuesExample:..................................................................................................................... 256

Behavior of Tagged Packets...........................................................................................................................................257

Conguration Example for DSCP and PFC Priorities...................................................................................................... 257

Using PFC to Manage Converged Ethernet Trac........................................................................................................ 258

Congure Enhanced Transmission Selection.................................................................................................................. 258

ETS Prerequisites and Restrictions...........................................................................................................................259

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

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

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

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

9

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

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

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

Congure a DCBx Operation..........................................................................................................................................263

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

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

DCB Conguration Exchange...................................................................................................................................265

Conguration Source Election..................................................................................................................................265

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

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

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

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

Conguring DCBx.....................................................................................................................................................267

Verifying the DCB Conguration..................................................................................................................................... 271

QoS dot1p Trac Classication and Queue Assignment.................................................................................................280

Conguring the Dynamic Buer Method.........................................................................................................................281

Sample DCB Conguration.............................................................................................................................................282

PFC and ETS Conguration Command Examples.................................................................................................... 284

14 Dynamic Host Conguration Protocol (DHCP).......................................................... 285

DHCP Packet Format and Options.................................................................................................................................285

Assign an IP Address using DHCP.................................................................................................................................. 287

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

Congure the System to be a DHCP Server.................................................................................................................. 288

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

Specifying a Default Gateway.................................................................................................................................. 290

Congure a Method of Hostname Resolution.......................................................................................................... 290

Using DNS for Address Resolution...........................................................................................................................290

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

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

Debugging the DHCP Server....................................................................................................................................291

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

Congure the System to be a Relay Agent......................................................................................................................291

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

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

DHCP Client on a Management Interface................................................................................................................ 294

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.................................................................................................................................................................296

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

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

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

Conguring Dynamic ARP Inspection........................................................................................................................301

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

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

10

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

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

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

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

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

Conguring the Hash Algorithm.....................................................................................................................................305

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

Conguring the Hash Algorithm Seed............................................................................................................................305

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

Managing ECMP Group Paths................................................................................................................................. 306

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

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

16 FCoE Transit..............................................................................................................309

Fibre Channel over Ethernet.......................................................................................................................................... 309

Ensure Robustness in a Converged Ethernet Network.................................................................................................. 309

FIP Snooping on Ethernet Bridges..................................................................................................................................310

FIP Snooping in a Switch Stack...................................................................................................................................... 312

Using FIP Snooping.........................................................................................................................................................312

FIP Snooping Prerequisites....................................................................................................................................... 312

Important Points to Remember.................................................................................................................................313

Enabling the FCoE Transit Feature............................................................................................................................313

Enable FIP Snooping on VLANs................................................................................................................................ 314

Congure the FC-MAP Value....................................................................................................................................314

Congure a Port for a Bridge-to-Bridge Link.............................................................................................................314

Congure a Port for a Bridge-to-FCF Link................................................................................................................ 314

Impact on Other Software Features..........................................................................................................................314

FIP Snooping Restrictions.........................................................................................................................................315

Conguring FIP Snooping......................................................................................................................................... 315

Displaying FIP Snooping Information............................................................................................................................... 316

FCoE Transit Conguration Example...............................................................................................................................321

17 FIPS Cryptography.................................................................................................... 323

Conguration Tasks........................................................................................................................................................323

Preparing the System.....................................................................................................................................................323

Enabling FIPS Mode.......................................................................................................................................................323

Generating Host-Keys.................................................................................................................................................... 324

Monitoring FIPS Mode Status........................................................................................................................................ 324

Disabling FIPS Mode...................................................................................................................................................... 325

18 Force10 Resilient Ring Protocol (FRRP).....................................................................326

Protocol Overview......................................................................................................................................................... 326

Ring Status.............................................................................................................................................................. 326

Multiple FRRP Rings.................................................................................................................................................327

Important FRRP Points.............................................................................................................................................327

11

Important FRRP Concepts.......................................................................................................................................328

Implementing FRRP....................................................................................................................................................... 329

FRRP Conguration....................................................................................................................................................... 329

Creating the FRRP Group........................................................................................................................................ 329

Conguring the Control VLAN................................................................................................................................. 330

Conguring and Adding the Member VLANs............................................................................................................ 331

Setting the FRRP Timers......................................................................................................................................... 332

Clearing the FRRP Counters.................................................................................................................................... 332

Viewing the FRRP Conguration..............................................................................................................................332

Viewing the FRRP Information................................................................................................................................. 332

Troubleshooting FRRP....................................................................................................................................................333

Conguration Checks...............................................................................................................................................333

Sample Conguration and Topology............................................................................................................................... 333

19 GARP VLAN Registration Protocol (GVRP)............................................................... 335

Important Points to Remember......................................................................................................................................335

Congure GVRP............................................................................................................................................................ 335

Related Conguration Tasks..................................................................................................................................... 336

Enabling GVRP Globally................................................................................................................................................. 336

Enabling GVRP on a Layer 2 Interface............................................................................................................................337

Congure GVRP Registration.........................................................................................................................................337

Congure a GARP Timer................................................................................................................................................338

RPM Redundancy.......................................................................................................................................................... 338

20 High Availability (HA)................................................................................................ 339

Component Redundancy................................................................................................................................................339

Automatic and Manual Stack Unit Failover...............................................................................................................339

Synchronization between Management and Standby Units..................................................................................... 340

Forcing an Stack Unit Failover..................................................................................................................................340

Specifying an Auto-Failover Limit.............................................................................................................................340

Disabling Auto-Reboot.............................................................................................................................................. 341

Manually Synchronizing Management and Standby Units.........................................................................................341

Pre-Conguring a Stack Unit Slot...................................................................................................................................341

Removing a Provisioned Logical Stack Unit....................................................................................................................342

Hitless Behavior............................................................................................................................................................. 342

Graceful Restart.............................................................................................................................................................342

Software Resiliency........................................................................................................................................................343

Software Component Health Monitoring..................................................................................................................343

System Health Monitoring........................................................................................................................................343

Failure and Event Logging........................................................................................................................................ 343

Hot-Lock Behavior......................................................................................................................................................... 344

21 Internet Group Management Protocol (IGMP)...........................................................345

IGMP Implementation Information..................................................................................................................................345

IGMP Protocol Overview............................................................................................................................................... 345

IGMP Version 2........................................................................................................................................................345

12

IGMP Version 3........................................................................................................................................................ 346

Congure IGMP............................................................................................................................................................. 349

Related Conguration Tasks..................................................................................................................................... 349

Viewing IGMP Enabled Interfaces.................................................................................................................................. 350

Selecting an IGMP Version.............................................................................................................................................350

Viewing IGMP Groups....................................................................................................................................................350

Adjusting Timers............................................................................................................................................................. 351

Adjusting Query and Response Timers......................................................................................................................351

Preventing a Host from Joining a Group.........................................................................................................................352

Enabling IGMP Immediate-Leave................................................................................................................................... 354

IGMP Snooping..............................................................................................................................................................355

IGMP Snooping Implementation Information............................................................................................................355

Conguring IGMP Snooping.....................................................................................................................................355

Removing a Group-Port Association........................................................................................................................ 356

Disabling Multicast Flooding.....................................................................................................................................356

Specifying a Port as Connected to a Multicast Router.............................................................................................356

Conguring the Switch as Querier........................................................................................................................... 356

Fast Convergence after MSTP Topology Changes......................................................................................................... 357

Egress Interface Selection (EIS) for HTTP and IGMP Applications.................................................................................357

Protocol Separation..................................................................................................................................................358

Enabling and Disabling Management Egress Interface Selection.............................................................................. 359

Handling of Management Route Conguration........................................................................................................ 359

Handling of Switch-Initiated Trac.......................................................................................................................... 360

Handling of Switch-Destined Trac.........................................................................................................................360

Handling of Transit Trac (Trac Separation).......................................................................................................... 361

Mapping of Management Applications and Trac Type............................................................................................ 361

Behavior of Various Applications for Switch-Initiated Trac ....................................................................................362

Behavior of Various Applications for Switch-Destined Trac .................................................................................. 363

Interworking of EIS With Various Applications..........................................................................................................364

Designating a Multicast Router Interface....................................................................................................................... 364

22 Interfaces..................................................................................................................365

Basic Interface Conguration.........................................................................................................................................365

Advanced Interface Conguration..................................................................................................................................365

Interface Types.............................................................................................................................................................. 365

View Basic Interface Information....................................................................................................................................366

Enabling a Physical Interface.......................................................................................................................................... 367

Physical Interfaces......................................................................................................................................................... 368

Conguration Task List for Physical Interfaces......................................................................................................... 368

Overview of Layer Modes........................................................................................................................................ 368

Conguring Layer 2 (Data Link) Mode..................................................................................................................... 369

Conguring Layer 2 (Interface) Mode...................................................................................................................... 369

Conguring Layer 3 (Network) Mode...................................................................................................................... 369

Conguring Layer 3 (Interface) Mode...................................................................................................................... 370

Egress Interface Selection (EIS)......................................................................................................................................371

Important Points to Remember.................................................................................................................................371

13

Conguring EIS......................................................................................................................................................... 371

Management Interfaces.................................................................................................................................................. 371

Conguring Management Interfaces.........................................................................................................................371

Conguring Management Interfaces on the S-Series............................................................................................... 373

VLAN Interfaces............................................................................................................................................................. 374

Loopback Interfaces....................................................................................................................................................... 374

Null Interfaces................................................................................................................................................................ 375

Port Channel Interfaces..................................................................................................................................................375

Port Channel Denition and Standards.....................................................................................................................375

Port Channel Benets.............................................................................................................................................. 375

Port Channel Implementation................................................................................................................................... 375

10/100/1000 Mbps Interfaces in Port Channels....................................................................................................... 376

Conguration Tasks for Port Channel Interfaces.......................................................................................................376

Creating a Port Channel........................................................................................................................................... 377

Adding a Physical Interface to a Port Channel.......................................................................................................... 377

Reassigning an Interface to a New Port Channel......................................................................................................379

Conguring the Minimum Oper Up Links in a Port Channel......................................................................................379

................................................................................................................................................................................ 380

Assigning an IP Address to a Port Channel...............................................................................................................380

Deleting or Disabling a Port Channel......................................................................................................................... 381

Load Balancing Through Port Channels.................................................................................................................... 381

Load-Balancing Method............................................................................................................................................381

Changing the Hash Algorithm.................................................................................................................................. 382

Bulk Conguration..........................................................................................................................................................383

Interface Range........................................................................................................................................................383

Bulk Conguration Examples....................................................................................................................................383

Dening Interface Range Macros................................................................................................................................... 384

Dene the Interface Range...................................................................................................................................... 385

Choosing an Interface-Range Macro........................................................................................................................385

Monitoring and Maintaining Interfaces........................................................................................................................... 385

Maintenance Using TDR.......................................................................................................................................... 386

Splitting QSFP Ports to SFP+ Ports...............................................................................................................................387

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..........................................................................................387

Important Points to Remember................................................................................................................................388

Example Scenarios...................................................................................................................................................388

Link Dampening..............................................................................................................................................................392

Important Points to Remember................................................................................................................................392

Enabling Link Dampening......................................................................................................................................... 392

Link Bundle Monitoring...................................................................................................................................................393

Using Ethernet Pause Frames for Flow Control..............................................................................................................394

Enabling Pause Frames............................................................................................................................................ 395

Congure the MTU Size on an Interface........................................................................................................................395

Port-Pipes......................................................................................................................................................................396

Auto-Negotiation on Ethernet Interfaces....................................................................................................................... 396

Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................................................... 396

14

Set Auto-Negotiation Options..................................................................................................................................398

View Advanced Interface Information............................................................................................................................ 398

Conguring the Interface Sampling Size.................................................................................................................. 399

Dynamic Counters..........................................................................................................................................................400

Clearing Interface Counters...................................................................................................................................... 401

Enhanced Validation of Interface Ranges........................................................................................................................401

23 Internet Protocol Security (IPSec)............................................................................ 402

Conguring IPSec ......................................................................................................................................................... 402

24 IPv4 Routing............................................................................................................. 404

IP Addresses.................................................................................................................................................................. 404

Implementation Information......................................................................................................................................404

Conguration Tasks for IP Addresses............................................................................................................................. 404

Assigning IP Addresses to an Interface.......................................................................................................................... 405

Conguring Static Routes.............................................................................................................................................. 405

Congure Static Routes for the Management Interface.................................................................................................407

IPv4 Path MTU Discovery Overview..............................................................................................................................408

Using the Congured Source IP Address in ICMP Messages......................................................................................... 408

Conguring the ICMP Source Interface................................................................................................................... 408

Conguring the Duration to Establish a TCP Connection............................................................................................... 409

Enabling Directed Broadcast.......................................................................................................................................... 409

Resolution of Host Names............................................................................................................................................. 409

Enabling Dynamic Resolution of Host Names..................................................................................................................410

Specifying the Local System Domain and a List of Domains............................................................................................410

Conguring DNS with Traceroute.................................................................................................................................... 411

ARP................................................................................................................................................................................. 411

Conguration Tasks for ARP........................................................................................................................................... 412

Conguring Static ARP Entries....................................................................................................................................... 412

Enabling Proxy ARP........................................................................................................................................................ 412

Clearing ARP Cache........................................................................................................................................................413

ARP Learning via Gratuitous ARP................................................................................................................................... 413

Enabling ARP Learning via Gratuitous ARP..................................................................................................................... 413

ARP Learning via ARP Request.......................................................................................................................................414

Conguring ARP Retries................................................................................................................................................. 414

ICMP.............................................................................................................................................................................. 415

Conguration Tasks for ICMP......................................................................................................................................... 415

Enabling ICMP Unreachable Messages...........................................................................................................................415

UDP Helper.....................................................................................................................................................................416

Congure UDP Helper.............................................................................................................................................. 416

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

Enabling UDP Helper.......................................................................................................................................................416

Conguring a Broadcast Address....................................................................................................................................416

Congurations Using UDP Helper................................................................................................................................... 417

UDP Helper with Broadcast-All Addresses...................................................................................................................... 417

UDP Helper with Subnet Broadcast Addresses...............................................................................................................418

15

UDP Helper with Congured Broadcast Addresses.........................................................................................................418

UDP Helper with No Congured Broadcast Addresses................................................................................................... 419

Troubleshooting UDP Helper...........................................................................................................................................419

25 IPv6 Routing............................................................................................................. 420

Protocol Overview......................................................................................................................................................... 420

Extended Address Space......................................................................................................................................... 420

Stateless Autoconguration..................................................................................................................................... 420

IPv6 Headers............................................................................................................................................................ 421

IPv6 Header Fields....................................................................................................................................................421

Extension Header Fields...........................................................................................................................................423

Addressing............................................................................................................................................................... 424

Implementing IPv6 with Dell Networking OS..................................................................................................................425

ICMPv6..........................................................................................................................................................................426

Path MTU Discovery...................................................................................................................................................... 427

IPv6 Neighbor Discovery................................................................................................................................................427

IPv6 Neighbor Discovery of MTU Packets............................................................................................................... 428

Conguration Task List for IPv6 RDNSS.........................................................................................................................428

Conguring the IPv6 Recursive DNS Server............................................................................................................ 428

Debugging IPv6 RDNSS Information Sent to the Host ............................................................................................429

Displaying IPv6 RDNSS Information......................................................................................................................... 429

Secure Shell (SSH) Over an IPv6 Transport...................................................................................................................430

Conguration Tasks for IPv6.......................................................................................................................................... 430

Adjusting Your CAM-Prole......................................................................................................................................430

Assigning an IPv6 Address to an Interface................................................................................................................ 431

Assigning a Static IPv6 Route.................................................................................................................................. 432

Conguring Telnet with IPv6.................................................................................................................................... 432

SNMP over IPv6...................................................................................................................................................... 432

Showing IPv6 Information........................................................................................................................................ 433

Showing an IPv6 Interface....................................................................................................................................... 433

Showing IPv6 Routes............................................................................................................................................... 434

Showing the Running-Conguration for an Interface............................................................................................... 435

Clearing IPv6 Routes................................................................................................................................................435

Conguring IPv6 RA Guard............................................................................................................................................ 436

Conguring IPv6 RA Guard on an Interface..............................................................................................................437

Monitoring IPv6 RA Guard....................................................................................................................................... 438

26 iSCSI Optimization.................................................................................................... 439

iSCSI Optimization Overview......................................................................................................................................... 439

Monitoring iSCSI Trac Flows................................................................................................................................. 440

Application of Quality of Service to iSCSI Trac Flows............................................................................................440

Information Monitored in iSCSI Trac Flows.............................................................................................................441

Detection and Auto-Conguration for Dell EqualLogic Arrays....................................................................................441

Conguring Detection and Ports for Dell Compellent Arrays.................................................................................... 442

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..........................................................................442

Enable and Disable iSCSI Optimization..................................................................................................................... 443

16

Default iSCSI Optimization Values.................................................................................................................................. 443

iSCSI Optimization Prerequisites.................................................................................................................................... 444

Conguring iSCSI Optimization...................................................................................................................................... 444

Displaying iSCSI Optimization Information......................................................................................................................446

27 Intermediate System to Intermediate System............................................................ 448

IS-IS Protocol Overview.................................................................................................................................................448

IS-IS Addressing.............................................................................................................................................................448

Multi-Topology IS-IS....................................................................................................................................................... 449

Transition Mode....................................................................................................................................................... 449

Interface Support.....................................................................................................................................................449

Adjacencies..............................................................................................................................................................449

Graceful Restart............................................................................................................................................................ 450

Timers......................................................................................................................................................................450

Implementation Information........................................................................................................................................... 450

Conguration Information............................................................................................................................................... 451

Conguration Tasks for IS-IS.....................................................................................................................................451

Conguring the Distance of a Route........................................................................................................................ 459

Changing the IS-Type............................................................................................................................................... 459

Redistributing IPv4 Routes.......................................................................................................................................462

Redistributing IPv6 Routes.......................................................................................................................................462

Conguring Authentication Passwords.....................................................................................................................463

Setting the Overload Bit...........................................................................................................................................464

Debugging IS-IS....................................................................................................................................................... 464

IS-IS Metric Styles......................................................................................................................................................... 465

Congure Metric Values.................................................................................................................................................465

Maximum Values in the Routing Table...................................................................................................................... 466

Change the IS-IS Metric Style in One Level Only..................................................................................................... 466

Leaks from One Level to Another.............................................................................................................................467

Sample Congurations................................................................................................................................................... 468

28 Link Aggregation Control Protocol (LACP).................................................................471

Introduction to Dynamic LAGs and LACP........................................................................................................................471

Important Points to Remember.................................................................................................................................471

LACP Modes............................................................................................................................................................472

Conguring LACP Commands..................................................................................................................................472

LACP Conguration Tasks.............................................................................................................................................. 473

Creating a LAG.........................................................................................................................................................473

Conguring the LAG Interfaces as Dynamic............................................................................................................. 473

Setting the LACP Long Timeout...............................................................................................................................474

Monitoring and Debugging LACP............................................................................................................................. 474

Shared LAG State Tracking............................................................................................................................................ 475

Conguring Shared LAG State Tracking................................................................................................................... 475

Important Points about Shared LAG State Tracking................................................................................................. 476

LACP Basic Conguration Example................................................................................................................................ 477

Congure a LAG on ALPHA......................................................................................................................................477

17

29 Layer 2...................................................................................................................... 485

Manage the MAC Address Table.................................................................................................................................... 485

Clearing the MAC Address Table.............................................................................................................................. 485

Setting the Aging Time for Dynamic Entries.............................................................................................................485

Conguring a Static MAC Address...........................................................................................................................485

Displaying the MAC Address Table........................................................................................................................... 486

MAC Learning Limit........................................................................................................................................................486

Setting the MAC Learning Limit............................................................................................................................... 487

mac learning-limit Dynamic.......................................................................................................................................487

mac learning-limit mac-address-sticky..................................................................................................................... 487

mac learning-limit station-move................................................................................................................................487

mac learning-limit no-station-move..........................................................................................................................488

Learning Limit Violation Actions................................................................................................................................488

Setting Station Move Violation Actions.................................................................................................................... 488

Recovering from Learning Limit and Station Move Violations...................................................................................489

NIC Teaming.................................................................................................................................................................. 489

Congure Redundant Pairs............................................................................................................................................ 490

Important Points about Conguring Redundant Pairs...............................................................................................492

Far-End Failure Detection...............................................................................................................................................493

FEFD State Changes................................................................................................................................................494

Conguring FEFD.....................................................................................................................................................494

Enabling FEFD on an Interface.................................................................................................................................495

Debugging FEFD......................................................................................................................................................496

30 Link Layer Discovery Protocol (LLDP).......................................................................498

802.1AB (LLDP) Overview............................................................................................................................................. 498

Protocol Data Units..................................................................................................................................................498

Optional TLVs.................................................................................................................................................................499

Management TLVs...................................................................................................................................................499

TIA-1057 (LLDP-MED) Overview....................................................................................................................................501

TIA Organizationally Specic TLVs............................................................................................................................501

Congure LLDP............................................................................................................................................................. 505

Related Conguration Tasks.....................................................................................................................................505

Important Points to Remember................................................................................................................................505

LLDP Compatibility.................................................................................................................................................. 505

CONFIGURATION versus INTERFACE Congurations.................................................................................................. 505

Enabling LLDP............................................................................................................................................................... 506

Disabling and Undoing LLDP.................................................................................................................................... 506

Enabling LLDP on Management Ports........................................................................................................................... 506

Disabling and Undoing LLDP on Management Ports................................................................................................ 507

Advertising TLVs............................................................................................................................................................ 507

Viewing the LLDP Conguration.................................................................................................................................... 508

Viewing Information Advertised by Adjacent LLDP Agents............................................................................................ 509

Conguring LLDPDU Intervals....................................................................................................................................... 509

Conguring Transmit and Receive Mode.........................................................................................................................510

18

Conguring a Time to Live...............................................................................................................................................511

Debugging LLDP.............................................................................................................................................................512

Relevant Management Objects.......................................................................................................................................512

31 Microsoft Network Load Balancing............................................................................. 517

NLB Unicast Mode Scenario........................................................................................................................................... 517

NLB Multicast Mode Scenario........................................................................................................................................ 517

Limitations of the NLB Feature....................................................................................................................................... 518

Microsoft Clustering....................................................................................................................................................... 518

Enable and Disable VLAN Flooding .................................................................................................................................518

Conguring a Switch for NLB ........................................................................................................................................ 519

................................................................................................................................................................................. 519

32 Multicast Source Discovery Protocol (MSDP).......................................................... 520

Protocol Overview......................................................................................................................................................... 520

Anycast RP.....................................................................................................................................................................521

Implementation Information............................................................................................................................................ 521

Congure Multicast Source Discovery Protocol..............................................................................................................521

Related Conguration Tasks..................................................................................................................................... 522

Enable MSDP.................................................................................................................................................................526

Manage the Source-Active Cache..................................................................................................................................527

Viewing the Source-Active Cache............................................................................................................................527

Limiting the Source-Active Cache............................................................................................................................ 527

Clearing the Source-Active Cache........................................................................................................................... 528

Enabling the Rejected Source-Active Cache............................................................................................................ 528

Accept Source-Active Messages that Fail the RFP Check.............................................................................................528

Specifying Source-Active Messages.............................................................................................................................. 532

Limiting the Source-Active Messages from a Peer.........................................................................................................533

Preventing MSDP from Caching a Local Source............................................................................................................ 533

Preventing MSDP from Caching a Remote Source........................................................................................................ 534

Preventing MSDP from Advertising a Local Source........................................................................................................534

Logging Changes in Peership States..............................................................................................................................535

Terminating a Peership...................................................................................................................................................535

Clearing Peer Statistics..................................................................................................................................................536

Debugging MSDP.......................................................................................................................................................... 536

MSDP with Anycast RP................................................................................................................................................. 537

Conguring Anycast RP.................................................................................................................................................538

Reducing Source-Active Message Flooding............................................................................................................. 539

Specifying the RP Address Used in SA Messages....................................................................................................539

MSDP Sample Congurations........................................................................................................................................542

33 Multiple Spanning Tree Protocol (MSTP)..................................................................545

Protocol Overview......................................................................................................................................................... 545

Spanning Tree Variations................................................................................................................................................546

Implementation Information..................................................................................................................................... 546

Congure Multiple Spanning Tree Protocol.................................................................................................................... 546

19

Related Conguration Tasks.....................................................................................................................................546

Enable Multiple Spanning Tree Globally.......................................................................................................................... 547

Adding and Removing Interfaces....................................................................................................................................547

Creating Multiple Spanning Tree Instances.....................................................................................................................547

Inuencing MSTP Root Selection...................................................................................................................................548

Interoperate with Non-Dell Networking OS Bridges....................................................................................................... 549

Changing the Region Name or Revision......................................................................................................................... 549

Modifying Global Parameters......................................................................................................................................... 550

Modifying the Interface Parameters................................................................................................................................551

Conguring an EdgePort................................................................................................................................................552

Flush MAC Addresses after a Topology Change.............................................................................................................552

MSTP Sample Congurations........................................................................................................................................ 553

Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-CongurationSFTOS

Example Running-Conguration...............................................................................................................................553

Debugging and Verifying MSTP Congurations............................................................................................................. 556

34 Multicast Features.................................................................................................... 558

Enabling IP Multicast..................................................................................................................................................... 558

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

Multicast Policies........................................................................................................................................................... 559

IPv4 Multicast Policies............................................................................................................................................. 559

35 Object Tracking.........................................................................................................566

Object Tracking Overview..............................................................................................................................................566

Track Layer 2 Interfaces........................................................................................................................................... 567

Track Layer 3 Interfaces........................................................................................................................................... 567

Track IPv4 and IPv6 Routes..................................................................................................................................... 567

Set Tracking Delays..................................................................................................................................................568

VRRP Object Tracking............................................................................................................................................. 569

Object Tracking Conguration........................................................................................................................................569

Tracking a Layer 2 Interface..................................................................................................................................... 569

Tracking a Layer 3 Interface..................................................................................................................................... 570

Track an IPv4/IPv6 Route.........................................................................................................................................571

Displaying Tracked Objects.............................................................................................................................................574

36 Open Shortest Path First (OSPFv2 and OSPFv3)..................................................... 577

Protocol Overview..........................................................................................................................................................577

Autonomous System (AS) Areas...............................................................................................................................577

Area Types................................................................................................................................................................578

Networks and Neighbors..........................................................................................................................................579

Router Types............................................................................................................................................................ 579

Designated and Backup Designated Routers.............................................................................................................581

Link-State Advertisements (LSAs)............................................................................................................................581

Router Priority and Cost.......................................................................................................................................... 582

OSPF with Dell Networking OS......................................................................................................................................583

Graceful Restart.......................................................................................................................................................584

20