Dell PowerSwitch S4810P User guide

Dell Conguration Guide for the S4810 System

9.9(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.

™

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 - 09

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..................................................................................................................................................................39

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

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

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

Example of the grep Keyword..................................................................................................................................... 41

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

3 Getting Started............................................................................................................. 43

Console Access................................................................................................................................................................ 43

Serial Console.............................................................................................................................................................43

Accessing the CLI Interface and Running Scripts Using SSH........................................................................................... 44

Entering CLI commands Using an SSH Connection....................................................................................................44

Executing Local CLI Scripts Using an SSH Connection.............................................................................................. 44

Default Conguration....................................................................................................................................................... 45

Conguring a Host Name.................................................................................................................................................45

Accessing the System Remotely...................................................................................................................................... 45

Accessing the System Remotely................................................................................................................................ 45

Congure the Management Port IP Address.............................................................................................................. 46

Congure a Management Route.................................................................................................................................46

Conguring a Username and Password...................................................................................................................... 46

Conguring the Enable Password.....................................................................................................................................46

Conguration File Management........................................................................................................................................47

Copy Files to and from the System.............................................................................................................................47

Mounting an NFS File System.................................................................................................................................... 48

Save the Running-Conguration................................................................................................................................ 49

Congure the Overload Bit for a Startup Scenario.....................................................................................................50

Viewing Files.............................................................................................................................................................. 50

Compressing Conguration Files................................................................................................................................. 51

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

Enabling Software Features on Devices Using a Command Option.................................................................................. 54

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

3

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

Using Hashes to Verify Software Images Before Installation.............................................................................................55

Using HTTP for File Transfers.......................................................................................................................................... 56

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

Conguring Privilege Levels..............................................................................................................................................57

Creating a Custom Privilege Level.............................................................................................................................. 57

Removing a Command from EXEC Mode...................................................................................................................57

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................................................ 57

Allowing Access to CONFIGURATION Mode Commands........................................................................................... 57

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

Applying a Privilege Level to a Username................................................................................................................... 59

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

Conguring Logging......................................................................................................................................................... 60

Audit and Security Logs............................................................................................................................................. 60

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

Display the Logging Buer and the Logging Conguration......................................................................................... 62

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

Sending System Messages to a Syslog Server........................................................................................................... 64

Track Login Activity.......................................................................................................................................................... 64

Restrictions for Tracking Login Activity...................................................................................................................... 64

Conguring Login Activity Tracking............................................................................................................................ 64

Display Login Statistics...............................................................................................................................................65

Limit Concurrent Login Sessions...................................................................................................................................... 66

Restrictions for Limiting the Number of Concurrent Sessions.................................................................................... 66

Conguring Concurrent Session Limit........................................................................................................................ 66

Enabling the System to Clear Existing Sessions......................................................................................................... 66

Log Messages in the Internal Buer................................................................................................................................. 67

Conguration Task List for System Log Management.................................................................................................67

Disabling System Logging................................................................................................................................................. 67

Sending System Messages to a Syslog Server................................................................................................................. 68

Conguring a UNIX System as a Syslog Server..........................................................................................................68

Changing System Logging Settings..................................................................................................................................68

Display the Logging Buer and the Logging Conguration............................................................................................... 69

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

Synchronizing Log Messages............................................................................................................................................ 71

Enabling Timestamp on Syslog Messages......................................................................................................................... 71

File Transfer Services........................................................................................................................................................72

Conguration Task List for File Transfer Services........................................................................................................72

Enabling the FTP Server.............................................................................................................................................72

Conguring FTP Server Parameters........................................................................................................................... 72

Conguring FTP Client Parameters............................................................................................................................ 73

Terminal Lines...................................................................................................................................................................73

Denying and Permitting Access to a Terminal Line......................................................................................................73

Conguring Login Authentication for Terminal Lines................................................................................................... 74

Setting Timeout for EXEC Privilege Mode........................................................................................................................75

4

Using Telnet to get to Another Network Device............................................................................................................... 76

Lock CONFIGURATION Mode..........................................................................................................................................76

Viewing the Conguration Lock Status.......................................................................................................................77

Recovering from a Forgotten Password............................................................................................................................77

Recovering from a Forgotten Enable Password.......................................................................................................... 78

Recovering from a Failed Start......................................................................................................................................... 79

Restoring the Factory Default Settings.............................................................................................................................79

Important Points to Remember.................................................................................................................................. 79

Restoring Factory Default Environment Variables.......................................................................................................80

5 802.1ag..........................................................................................................................82

Ethernet CFM.................................................................................................................................................................. 82

Maintenance Domains...................................................................................................................................................... 83

Maintenance Points..........................................................................................................................................................83

Maintenance End Points...................................................................................................................................................84

Implementation Information..............................................................................................................................................84

Conguring the CFM....................................................................................................................................................... 85

Related Conguration Tasks....................................................................................................................................... 85

Enable Ethernet CFM.......................................................................................................................................................85

Creating a Maintenance Domain.......................................................................................................................................85

Creating a Maintenance Association.................................................................................................................................86

Create Maintenance Points.............................................................................................................................................. 86

Creating a Maintenance End Point............................................................................................................................. 86

Creating a Maintenance Intermediate Point................................................................................................................ 87

Displaying the MP Databases......................................................................................................................................87

Continuity Check Messages.............................................................................................................................................88

Enabling CCM............................................................................................................................................................ 89

Enabling Cross-Checking........................................................................................................................................... 89

Sending Loopback Messages and Responses...................................................................................................................89

Sending Linktrace Messages and Responses................................................................................................................... 89

Caching Link Trace.....................................................................................................................................................90

Enabling CFM SNMP Traps...............................................................................................................................................91

Displaying Ethernet CFM Statistics.................................................................................................................................. 92

6 802.1X........................................................................................................................... 94

Port-Authentication Process............................................................................................................................................ 95

EAP over RADIUS...................................................................................................................................................... 96

Conguring 802.1X............................................................................................................................................................97

Related Conguration Tasks....................................................................................................................................... 97

Important Points to Remember.........................................................................................................................................97

Enabling 802.1X................................................................................................................................................................ 98

Conguring Request Identity Re-Transmissions................................................................................................................99

Conguring a Quiet Period after a Failed Authentication...........................................................................................100

Forcibly Authorizing or Unauthorizing a Port................................................................................................................... 101

Re-Authenticating a Port.................................................................................................................................................101

Conguring Timeouts......................................................................................................................................................102

5

Conguring Dynamic VLAN Assignment with Port Authentication..................................................................................103

Guest and Authentication-Fail VLANs.............................................................................................................................104

Conguring a Guest VLAN....................................................................................................................................... 105

Conguring an Authentication-Fail VLAN................................................................................................................. 105

7 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).... 107

Optimizing CAM Utilization During the Attachment of ACLs to VLANs...........................................................................107

Guidelines for Conguring ACL VLAN Groups................................................................................................................ 108

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters..........................................................108

Conguring ACL VLAN Groups.................................................................................................................................108

Conguring FP Blocks for VLAN Parameters............................................................................................................109

Viewing CAM Usage........................................................................................................................................................110

Allocating FP Blocks for VLAN Processes........................................................................................................................ 111

8 Access Control Lists (ACLs)......................................................................................... 113

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

CAM Usage............................................................................................................................................................... 114

Implementing ACLs on Dell Networking OS............................................................................................................... 115

Important Points to Remember........................................................................................................................................116

Conguration Task List for Route Maps.....................................................................................................................116

Conguring Match Routes.........................................................................................................................................118

Conguring Set Conditions.......................................................................................................................................120

Congure a Route Map for Route Redistribution....................................................................................................... 121

Congure a Route Map for Route Tagging.................................................................................................................121

Continue Clause.........................................................................................................................................................121

IP Fragment Handling..................................................................................................................................................... 122

IP Fragments ACL Examples.....................................................................................................................................122

Layer 4 ACL Rules Examples.....................................................................................................................................122

Congure a Standard IP ACL.......................................................................................................................................... 123

Conguring a Standard IP ACL Filter.........................................................................................................................124

Congure an Extended IP ACL........................................................................................................................................125

Conguring Filters with a Sequence Number............................................................................................................125

Conguring Filters Without a Sequence Number...................................................................................................... 126

Congure Layer 2 and Layer 3 ACLs............................................................................................................................... 127

Assign an IP ACL to an Interface.....................................................................................................................................127

Applying an IP ACL..........................................................................................................................................................128

Counting ACL Hits.................................................................................................................................................... 128

Congure Ingress ACLs...................................................................................................................................................129

Congure Egress ACLs................................................................................................................................................... 129

Applying Egress Layer 3 ACLs (Control-Plane)......................................................................................................... 130

IP Prex Lists...................................................................................................................................................................131

Implementation Information....................................................................................................................................... 131

Conguration Task List for Prex Lists.......................................................................................................................131

ACL Resequencing..........................................................................................................................................................134

Resequencing an ACL or Prex List..........................................................................................................................135

Route Maps.................................................................................................................................................................... 136

6

Implementation Information...................................................................................................................................... 136

Logging of ACL Processes.............................................................................................................................................. 137

Guidelines for Conguring ACL Logging.................................................................................................................... 137

Conguring ACL Logging.......................................................................................................................................... 138

Flow-Based Monitoring Support for ACLs.......................................................................................................................138

Behavior of Flow-Based Monitoring..........................................................................................................................139

Enabling Flow-Based Monitoring...............................................................................................................................140

9 Bidirectional Forwarding Detection (BFD)....................................................................142

How BFD Works............................................................................................................................................................. 142

BFD Packet Format.................................................................................................................................................. 143

BFD Sessions............................................................................................................................................................144

BFD Three-Way Handshake......................................................................................................................................145

Session State Changes............................................................................................................................................. 147

Important Points to Remember.......................................................................................................................................147

Congure BFD................................................................................................................................................................ 147

Congure BFD for Physical Ports..............................................................................................................................148

Congure BFD for Static Routes............................................................................................................................... 151

Congure BFD for OSPF.......................................................................................................................................... 152

Congure BFD for OSPFv3.......................................................................................................................................154

Congure BFD for IS-IS............................................................................................................................................ 156

Congure BFD for BGP............................................................................................................................................ 158

Congure BFD for VRRP.......................................................................................................................................... 164

Conguring Protocol Liveness...................................................................................................................................167

Troubleshooting BFD.................................................................................................................................................167

10 Border Gateway Protocol IPv4 (BGPv4).................................................................... 169

Autonomous Systems (AS).............................................................................................................................................169

Sessions and Peers..........................................................................................................................................................171

Establish a Session.....................................................................................................................................................171

Route Reectors............................................................................................................................................................. 172

BGP Attributes................................................................................................................................................................173

Best Path Selection Criteria...................................................................................................................................... 173

Weight...................................................................................................................................................................... 175

Local Preference.......................................................................................................................................................175

Multi-Exit Discriminators (MEDs)..............................................................................................................................176

Origin........................................................................................................................................................................ 177

AS Path.....................................................................................................................................................................177

Next Hop.................................................................................................................................................................. 178

Multiprotocol BGP...........................................................................................................................................................178

Implement BGP with Dell Networking OS....................................................................................................................... 179

Additional Path (Add-Path) Support......................................................................................................................... 179

Advertise IGP Cost as MED for Redistributed Routes...............................................................................................179

Ignore Router-ID in Best-Path Calculation.................................................................................................................180

Four-Byte AS Numbers.............................................................................................................................................180

AS4 Number Representation.................................................................................................................................... 180

7

AS Number Migration............................................................................................................................................... 182

BGP4 Management Information Base (MIB).............................................................................................................183

Important Points to Remember.................................................................................................................................183

Conguration Information............................................................................................................................................... 184

BGP Conguration..........................................................................................................................................................184

Enabling BGP............................................................................................................................................................185

Conguring AS4 Number Representations................................................................................................................188

Conguring Peer Groups...........................................................................................................................................189

Conguring BGP Fast Fall-Over................................................................................................................................192

Conguring Passive Peering..................................................................................................................................... 194

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

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

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

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

Filtering on an AS-Path Attribute.............................................................................................................................. 197

Regular Expressions as Filters...................................................................................................................................198

Redistributing Routes...............................................................................................................................................200

Enabling Additional Paths.........................................................................................................................................200

Conguring IP Community Lists................................................................................................................................201

Conguring an IP Extended Community List............................................................................................................ 202

Filtering Routes with Community Lists..................................................................................................................... 203

Manipulating the COMMUNITY Attribute................................................................................................................ 203

Changing MED Attributes........................................................................................................................................ 205

Changing the LOCAL_PREFERENCE Attribute....................................................................................................... 205

Changing the NEXT_HOP Attribute.........................................................................................................................206

Changing the WEIGHT Attribute..............................................................................................................................206

Enabling Multipath................................................................................................................................................... 206

Filtering BGP Routes................................................................................................................................................207

Filtering BGP Routes Using Route Maps..................................................................................................................208

Filtering BGP Routes Using AS-PATH Information................................................................................................... 209

Conguring BGP Route Reectors...........................................................................................................................209

Aggregating Routes.................................................................................................................................................. 210

Conguring BGP Confederations..............................................................................................................................210

Enabling Route Flap Dampening................................................................................................................................ 211

Changing BGP Timers...............................................................................................................................................213

Enabling BGP Neighbor Soft-Reconguration...........................................................................................................213

Route Map Continue.................................................................................................................................................214

Enabling MBGP Congurations.......................................................................................................................................215

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

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

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

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

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

Sample Congurations....................................................................................................................................................219

11 Content Addressable Memory (CAM).........................................................................225

8

CAM Allocation.............................................................................................................................................................. 225

Test CAM Usage............................................................................................................................................................ 227

View CAM-ACL Settings................................................................................................................................................ 227

View CAM Usage...........................................................................................................................................................229

CAM Optimization..........................................................................................................................................................229

Troubleshoot CAM Proling............................................................................................................................................229

CAM Prole Mismatches..........................................................................................................................................229

QoS CAM Region Limitation.....................................................................................................................................230

12 Control Plane Policing (CoPP)....................................................................................231

Congure Control Plane Policing.................................................................................................................................... 232

Conguring CoPP for Protocols............................................................................................................................... 233

Conguring CoPP for CPU Queues..........................................................................................................................235

CoPP for OSPFv3 Packets...................................................................................................................................... 236

Conguring CoPP for OSPFv3.................................................................................................................................238

Displaying CoPP Conguration ................................................................................................................................239

13 Data Center Bridging (DCB)....................................................................................... 241

Ethernet Enhancements in Data Center Bridging............................................................................................................241

Priority-Based Flow Control..................................................................................................................................... 242

Enhanced Transmission Selection.............................................................................................................................243

Data Center Bridging Exchange Protocol (DCBx).....................................................................................................244

Data Center Bridging in a Trac Flow...................................................................................................................... 244

Enabling Data Center Bridging........................................................................................................................................245

DCB Maps and its Attributes....................................................................................................................................245

QoS dot1p Trac Classication and Queue Assignment.................................................................................................246

Data Center Bridging: Default Conguration...................................................................................................................247

Conguring Priority-Based Flow Control........................................................................................................................ 247

Conguring Lossless Queues....................................................................................................................................248

Conguring PFC in a DCB Map......................................................................................................................................249

PFC Conguration Notes......................................................................................................................................... 249

PFC Prerequisites and Restrictions.......................................................................................................................... 250

Applying a DCB Map on a Port........................................................................................................................................251

Priority-Based Flow Control Using Dynamic Buer Method............................................................................................251

Pause and Resume of Trac.....................................................................................................................................251

Buer Sizes for Lossless or PFC Packets.................................................................................................................252

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

Conguring Lossless QueuesExample:..................................................................................................................... 253

Behavior of Tagged Packets...........................................................................................................................................254

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

Using PFC to Manage Converged Ethernet Trac........................................................................................................ 255

Congure Enhanced Transmission Selection.................................................................................................................. 255

ETS Prerequisites and Restrictions...........................................................................................................................256

Creating an ETS Priority Group................................................................................................................................ 256

ETS Operation with DCBx........................................................................................................................................257

Conguring Bandwidth Allocation for DCBx CIN...................................................................................................... 257

9

Conguring ETS in a DCB Map................................................................................................................................ 258

Hierarchical Scheduling in ETS Output Policies........................................................................................................ 259

Using ETS to Manage Converged Ethernet Trac...................................................................................................260

Applying DCB Policies in a Switch Stack........................................................................................................................ 260

Congure a DCBx Operation..........................................................................................................................................260

DCBx Operation.......................................................................................................................................................260

DCBx Port Roles.......................................................................................................................................................261

DCB Conguration Exchange...................................................................................................................................262

Conguration Source Election..................................................................................................................................262

Propagation of DCB Information.............................................................................................................................. 263

Auto-Detection and Manual Conguration of the DCBx Version.............................................................................. 263

DCBx Example......................................................................................................................................................... 264

DCBx Prerequisites and Restrictions........................................................................................................................ 264

Conguring DCBx.................................................................................................................................................... 264

Verifying the DCB Conguration.................................................................................................................................... 268

QoS dot1p Trac Classication and Queue Assignment................................................................................................. 277

Conguring the Dynamic Buer Method........................................................................................................................278

Sample DCB Conguration.............................................................................................................................................279

PFC and ETS Conguration Command Examples..................................................................................................... 281

14 Dynamic Host Conguration Protocol (DHCP).......................................................... 282

DHCP Packet Format and Options.................................................................................................................................282

Assign an IP Address using DHCP.................................................................................................................................. 284

Implementation Information............................................................................................................................................284

Congure the System to be a DHCP Server.................................................................................................................. 285

Conguring the Server for Automatic Address Allocation.........................................................................................285

Specifying a Default Gateway...................................................................................................................................287

Congure a Method of Hostname Resolution...........................................................................................................287

Using DNS for Address Resolution........................................................................................................................... 287

Using NetBIOS WINS for Address Resolution...........................................................................................................287

Creating Manual Binding Entries...............................................................................................................................287

Debugging the DHCP Server................................................................................................................................... 288

Using DHCP Clear Commands................................................................................................................................. 288

Congure the System to be a Relay Agent.....................................................................................................................288

Congure the System to be a DHCP Client....................................................................................................................290

Conguring the DHCP Client System.......................................................................................................................290

DHCP Client on a Management Interface................................................................................................................. 291

DHCP Client Operation with Other Features............................................................................................................292

Congure the System for User Port Stacking (Option 230)...........................................................................................293

Congure Secure DHCP.................................................................................................................................................293

Option 82.................................................................................................................................................................293

DHCP Snooping.......................................................................................................................................................294

Conguring the DHCP secondary-subnet................................................................................................................ 297

Drop DHCP Packets on Snooped VLANs Only......................................................................................................... 297

Dynamic ARP Inspection..........................................................................................................................................298

Conguring Dynamic ARP Inspection.......................................................................................................................298

10

Source Address Validation..............................................................................................................................................299

Enabling IP Source Address Validation......................................................................................................................299

DHCP MAC Source Address Validation....................................................................................................................300

Enabling IP+MAC Source Address Validation........................................................................................................... 300

Viewing the Number of SAV Dropped Packets......................................................................................................... 301

Clearing the Number of SAV Dropped Packets.........................................................................................................301

15 Equal Cost Multi-Path (ECMP)................................................................................. 302

Conguring the Hash Algorithm.....................................................................................................................................302

Enabling Deterministic ECMP Next Hop........................................................................................................................ 302

Conguring the Hash Algorithm Seed............................................................................................................................ 302

Link Bundle Monitoring...................................................................................................................................................303

Managing ECMP Group Paths................................................................................................................................. 303

Creating an ECMP Group Bundle.............................................................................................................................304

Modifying the ECMP Group Threshold.................................................................................................................... 304

16 FCoE Transit..............................................................................................................306

Fibre Channel over Ethernet.......................................................................................................................................... 306

Ensure Robustness in a Converged Ethernet Network.................................................................................................. 306

FIP Snooping on Ethernet Bridges................................................................................................................................. 307

FIP Snooping in a Switch Stack..................................................................................................................................... 309

Using FIP Snooping........................................................................................................................................................309

FIP Snooping Prerequisites...................................................................................................................................... 309

Important Points to Remember.................................................................................................................................310

Enabling the FCoE Transit Feature............................................................................................................................310

Enable FIP Snooping on VLANs................................................................................................................................. 311

Congure the FC-MAP Value.................................................................................................................................... 311

Congure a Port for a Bridge-to-Bridge Link............................................................................................................. 311

Congure a Port for a Bridge-to-FCF Link.................................................................................................................311

Impact on Other Software Features.......................................................................................................................... 311

FIP Snooping Restrictions.........................................................................................................................................312

Conguring FIP Snooping......................................................................................................................................... 312

Displaying FIP Snooping Information............................................................................................................................... 313

FCoE Transit Conguration Example...............................................................................................................................318

17 FIPS Cryptography.................................................................................................... 320

Conguration Tasks........................................................................................................................................................320

Preparing the System.....................................................................................................................................................320

Enabling FIPS Mode.......................................................................................................................................................320

Generating Host-Keys.....................................................................................................................................................321

Monitoring FIPS Mode Status.........................................................................................................................................321

Disabling FIPS Mode...................................................................................................................................................... 322

18 Force10 Resilient Ring Protocol (FRRP).....................................................................323

Protocol Overview..........................................................................................................................................................323

Ring Status.............................................................................................................................................................. 323

11

Multiple FRRP Rings................................................................................................................................................ 324

Important FRRP Points............................................................................................................................................ 325

Important FRRP Concepts.......................................................................................................................................326

Implementing FRRP........................................................................................................................................................327

FRRP Conguration........................................................................................................................................................327

Creating the FRRP Group.........................................................................................................................................327

Conguring the Control VLAN..................................................................................................................................327

Conguring and Adding the Member VLANs............................................................................................................328

Setting the FRRP Timers......................................................................................................................................... 329

Clearing the FRRP Counters....................................................................................................................................330

Viewing the FRRP Conguration..............................................................................................................................330

Viewing the FRRP Information................................................................................................................................. 330

Troubleshooting FRRP................................................................................................................................................... 330

Conguration Checks...............................................................................................................................................330

Sample Conguration and Topology................................................................................................................................ 331

19 GARP VLAN Registration Protocol (GVRP)............................................................... 333

Important Points to Remember...................................................................................................................................... 333

Congure GVRP.............................................................................................................................................................334

Related Conguration Tasks..................................................................................................................................... 334

Enabling GVRP Globally..................................................................................................................................................334

Enabling GVRP on a Layer 2 Interface............................................................................................................................335

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

Congure a GARP Timer................................................................................................................................................336

RPM Redundancy.......................................................................................................................................................... 336

20 High Availability (HA)................................................................................................ 337

Component Redundancy................................................................................................................................................337

Automatic and Manual Stack Unit Failover............................................................................................................... 337

Synchronization between Management and Standby Units..................................................................................... 338

Forcing an Stack Unit Failover..................................................................................................................................338

Specifying an Auto-Failover Limit.............................................................................................................................338

Disabling Auto-Reboot............................................................................................................................................. 339

Manually Synchronizing Management and Standby Units........................................................................................ 339

Pre-Conguring a Stack Unit Slot.................................................................................................................................. 339

Removing a Provisioned Logical Stack Unit....................................................................................................................340

Hitless Behavior............................................................................................................................................................. 340

Graceful Restart.............................................................................................................................................................340

Software Resiliency.........................................................................................................................................................341

Software Component Health Monitoring.................................................................................................................. 341

System Health Monitoring........................................................................................................................................ 341

Failure and Event Logging......................................................................................................................................... 341

Hot-Lock Behavior......................................................................................................................................................... 342

21 Internet Group Management Protocol (IGMP)...........................................................343

IGMP Implementation Information..................................................................................................................................343

12

IGMP Protocol Overview............................................................................................................................................... 343

IGMP Version 2........................................................................................................................................................ 343

IGMP Version 3........................................................................................................................................................ 344

Congure IGMP............................................................................................................................................................. 347

Related Conguration Tasks..................................................................................................................................... 347

Viewing IGMP Enabled Interfaces.................................................................................................................................. 348

Selecting an IGMP Version.............................................................................................................................................348

Viewing IGMP Groups.................................................................................................................................................... 348

Adjusting Timers.............................................................................................................................................................349

Adjusting Query and Response Timers.....................................................................................................................349

Preventing a Host from Joining a Group........................................................................................................................ 350

Enabling IGMP Immediate-Leave................................................................................................................................... 352

IGMP Snooping..............................................................................................................................................................353

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

Conguring IGMP Snooping.....................................................................................................................................353

Removing a Group-Port Association........................................................................................................................ 354

Disabling Multicast Flooding.....................................................................................................................................354

Specifying a Port as Connected to a Multicast Router.............................................................................................354

Conguring the Switch as Querier........................................................................................................................... 354

Fast Convergence after MSTP Topology Changes.........................................................................................................355

Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................................................ 355

Protocol Separation..................................................................................................................................................356

Enabling and Disabling Management Egress Interface Selection.............................................................................. 357

Handling of Management Route Conguration.........................................................................................................357

Handling of Switch-Initiated Trac.......................................................................................................................... 358

Handling of Switch-Destined Trac.........................................................................................................................358

Handling of Transit Trac (Trac Separation)......................................................................................................... 359

Mapping of Management Applications and Trac Type........................................................................................... 359

Behavior of Various Applications for Switch-Initiated Trac ....................................................................................360

Behavior of Various Applications for Switch-Destined Trac ...................................................................................361

Interworking of EIS With Various Applications..........................................................................................................362

Designating a Multicast Router Interface....................................................................................................................... 362

22 Interfaces..................................................................................................................363

Basic Interface Conguration......................................................................................................................................... 363

Advanced Interface Conguration..................................................................................................................................363

Interface Types...............................................................................................................................................................363

View Basic Interface Information....................................................................................................................................364

Resetting an Interface to its Factory Default State........................................................................................................ 365

Enabling a Physical Interface..........................................................................................................................................366

Physical Interfaces......................................................................................................................................................... 366

Conguration Task List for Physical Interfaces......................................................................................................... 367

Overview of Layer Modes........................................................................................................................................ 367

Conguring Layer 2 (Data Link) Mode......................................................................................................................367

Conguring Layer 2 (Interface) Mode...................................................................................................................... 368

Conguring Layer 3 (Network) Mode...................................................................................................................... 368

13

Conguring Layer 3 (Interface) Mode...................................................................................................................... 368

Egress Interface Selection (EIS).....................................................................................................................................369

Important Points to Remember................................................................................................................................369

Conguring EIS........................................................................................................................................................ 369

Management Interfaces................................................................................................................................................. 370

Conguring Management Interfaces........................................................................................................................ 370

Conguring a Management Interface on an Ethernet Port........................................................................................371

VLAN Interfaces.............................................................................................................................................................372

Loopback Interfaces....................................................................................................................................................... 373

Null Interfaces................................................................................................................................................................ 373

Port Channel Interfaces..................................................................................................................................................373

Port Channel Denition and Standards..................................................................................................................... 374

Port Channel Benets...............................................................................................................................................374

Port Channel Implementation................................................................................................................................... 374

Interfaces in Port Channels.......................................................................................................................................374

Conguration Tasks for Port Channel Interfaces...................................................................................................... 375

Creating a Port Channel........................................................................................................................................... 375

Adding a Physical Interface to a Port Channel..........................................................................................................375

Reassigning an Interface to a New Port Channel...................................................................................................... 377

Conguring the Minimum Oper Up Links in a Port Channel...................................................................................... 378

Adding or Removing a Port Channel from a VLAN................................................................................................... 378

Assigning an IP Address to a Port Channel...............................................................................................................379

Deleting or Disabling a Port Channel.........................................................................................................................379

Load Balancing Through Port Channels....................................................................................................................380

Changing the Hash Algorithm.................................................................................................................................. 380

Bulk Conguration...........................................................................................................................................................381

Interface Range........................................................................................................................................................ 381

Bulk Conguration Examples.....................................................................................................................................381

Dening Interface Range Macros................................................................................................................................... 382

Dene the Interface Range...................................................................................................................................... 383

Choosing an Interface-Range Macro........................................................................................................................383

Monitoring and Maintaining Interfaces........................................................................................................................... 383

Maintenance Using TDR...........................................................................................................................................384

Splitting QSFP Ports to SFP+ Ports...............................................................................................................................385

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port......................................................................................... 385

Important Points to Remember................................................................................................................................386

Example Scenarios...................................................................................................................................................386

Link Dampening............................................................................................................................................................. 390

Important Points to Remember................................................................................................................................390

Enabling Link Dampening......................................................................................................................................... 390

Link Bundle Monitoring................................................................................................................................................... 391

Using Ethernet Pause Frames for Flow Control..............................................................................................................392

Enabling Pause Frames............................................................................................................................................ 393

Congure the MTU Size on an Interface........................................................................................................................ 393

Port-Pipes......................................................................................................................................................................394

14

Auto-Negotiation on Ethernet Interfaces....................................................................................................................... 394

Setting the Speed and Duplex Mode of Ethernet Interfaces.................................................................................... 394

Set Auto-Negotiation Options..................................................................................................................................396

View Advanced Interface Information.............................................................................................................................397

Conguring the Interface Sampling Size...................................................................................................................397

Dynamic Counters..........................................................................................................................................................398

Clearing Interface Counters..................................................................................................................................... 399

23 Internet Protocol Security (IPSec)............................................................................400

Conguring IPSec ......................................................................................................................................................... 400

24 IPv4 Routing............................................................................................................. 402

IP Addresses.................................................................................................................................................................. 402

Implementation Information......................................................................................................................................402

Conguration Tasks for IP Addresses............................................................................................................................. 402

Assigning IP Addresses to an Interface...........................................................................................................................403

Conguring Static Routes.............................................................................................................................................. 403

Congure Static Routes for the Management Interface.................................................................................................404

IPv4 Path MTU Discovery Overview..............................................................................................................................405

Using the Congured Source IP Address in ICMP Messages......................................................................................... 405

Conguring the ICMP Source Interface................................................................................................................... 405

Conguring the Duration to Establish a TCP Connection............................................................................................... 406

Enabling Directed Broadcast.......................................................................................................................................... 406

Resolution of Host Names............................................................................................................................................. 406

Enabling Dynamic Resolution of Host Names................................................................................................................. 407

Specifying the Local System Domain and a List of Domains...........................................................................................407

Conguring DNS with Traceroute.................................................................................................................................. 408

ARP............................................................................................................................................................................... 408

Conguration Tasks for ARP.......................................................................................................................................... 409

Conguring Static ARP Entries...................................................................................................................................... 409

Enabling Proxy ARP....................................................................................................................................................... 409

Clearing ARP Cache....................................................................................................................................................... 410

ARP Learning via Gratuitous ARP................................................................................................................................... 410

Enabling ARP Learning via Gratuitous ARP.....................................................................................................................410

ARP Learning via ARP Request.......................................................................................................................................410

Conguring ARP Retries..................................................................................................................................................411

ICMP.............................................................................................................................................................................. 412

Conguration Tasks for ICMP......................................................................................................................................... 412

Enabling ICMP Unreachable Messages...........................................................................................................................412

UDP Helper.....................................................................................................................................................................412

Congure UDP Helper.............................................................................................................................................. 412

Important Points to Remember.................................................................................................................................412

Enabling UDP Helper.......................................................................................................................................................413

Congurations Using UDP Helper................................................................................................................................... 413

UDP Helper with Broadcast-All Addresses......................................................................................................................413

UDP Helper with Subnet Broadcast Addresses...............................................................................................................414

15

UDP Helper with Congured Broadcast Addresses.........................................................................................................414

UDP Helper with No Congured Broadcast Addresses................................................................................................... 415

Troubleshooting UDP Helper...........................................................................................................................................415

25 IPv6 Routing..............................................................................................................416

Protocol Overview.......................................................................................................................................................... 416

Extended Address Space.......................................................................................................................................... 416

Stateless Autoconguration......................................................................................................................................416

IPv6 Headers............................................................................................................................................................ 417

IPv6 Header Fields.................................................................................................................................................... 417

Extension Header Fields............................................................................................................................................419

Addressing............................................................................................................................................................... 420

Implementing IPv6 with Dell Networking OS...................................................................................................................421

ICMPv6..........................................................................................................................................................................422

Path MTU Discovery......................................................................................................................................................423

IPv6 Neighbor Discovery................................................................................................................................................423

IPv6 Neighbor Discovery of MTU Packets............................................................................................................... 424

Conguration Task List for IPv6 RDNSS.........................................................................................................................424

Conguring the IPv6 Recursive DNS Server............................................................................................................ 424

Debugging IPv6 RDNSS Information Sent to the Host ............................................................................................425

Displaying IPv6 RDNSS Information......................................................................................................................... 425

Secure Shell (SSH) Over an IPv6 Transport...................................................................................................................426

Conguration Tasks for IPv6.......................................................................................................................................... 426

Adjusting Your CAM-Prole......................................................................................................................................426

Assigning an IPv6 Address to an Interface................................................................................................................427

Assigning a Static IPv6 Route.................................................................................................................................. 428

Conguring Telnet with IPv6.................................................................................................................................... 428

SNMP over IPv6...................................................................................................................................................... 428

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

Displaying an IPv6 Interface Information.................................................................................................................. 429

Showing IPv6 Routes...............................................................................................................................................430

Showing the Running-Conguration for an Interface................................................................................................ 431

Clearing IPv6 Routes.................................................................................................................................................431

Conguring IPv6 RA Guard............................................................................................................................................ 432

Conguring IPv6 RA Guard on an Interface..............................................................................................................433

Monitoring IPv6 RA Guard....................................................................................................................................... 434

26 iSCSI Optimization.................................................................................................... 435

iSCSI Optimization Overview......................................................................................................................................... 435

Monitoring iSCSI Trac Flows................................................................................................................................. 436

Application of Quality of Service to iSCSI Trac Flows............................................................................................436

Information Monitored in iSCSI Trac Flows............................................................................................................ 437

Detection and Auto-Conguration for Dell EqualLogic Arrays................................................................................... 437

Conguring Detection and Ports for Dell Compellent Arrays.................................................................................... 438

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..........................................................................438

Enable and Disable iSCSI Optimization.....................................................................................................................439

16

Default iSCSI Optimization Values..................................................................................................................................439

iSCSI Optimization Prerequisites.................................................................................................................................... 440

Conguring iSCSI Optimization...................................................................................................................................... 440

Displaying iSCSI Optimization Information...................................................................................................................... 442

27 Intermediate System to Intermediate System............................................................ 444

IS-IS Protocol Overview.................................................................................................................................................444

IS-IS Addressing.............................................................................................................................................................444

Multi-Topology IS-IS....................................................................................................................................................... 445

Transition Mode....................................................................................................................................................... 445

Interface Support.....................................................................................................................................................445

Adjacencies..............................................................................................................................................................445

Graceful Restart.............................................................................................................................................................446

Timers......................................................................................................................................................................446

Implementation Information............................................................................................................................................446

Conguration Information...............................................................................................................................................447

Conguration Tasks for IS-IS.................................................................................................................................... 447

Conguring the Distance of a Route........................................................................................................................ 455

Changing the IS-Type...............................................................................................................................................455

Redistributing IPv4 Routes.......................................................................................................................................458

Redistributing IPv6 Routes.......................................................................................................................................458

Conguring Authentication Passwords.....................................................................................................................459

Setting the Overload Bit.......................................................................................................................................... 460

Debugging IS-IS....................................................................................................................................................... 460

IS-IS Metric Styles..........................................................................................................................................................461

Congure Metric Values..................................................................................................................................................461

Maximum Values in the Routing Table...................................................................................................................... 462

Change the IS-IS Metric Style in One Level Only..................................................................................................... 462

Leaks from One Level to Another.............................................................................................................................463

Sample Congurations................................................................................................................................................... 464

28 Link Aggregation Control Protocol (LACP)................................................................ 467

Introduction to Dynamic LAGs and LACP.......................................................................................................................467

Important Points to Remember................................................................................................................................ 467

LACP Modes............................................................................................................................................................468

Conguring LACP Commands................................................................................................................................. 468

LACP Conguration Tasks..............................................................................................................................................469

Creating a LAG.........................................................................................................................................................469

Conguring the LAG Interfaces as Dynamic.............................................................................................................469

Setting the LACP Long Timeout...............................................................................................................................470

Monitoring and Debugging LACP............................................................................................................................. 470

Shared LAG State Tracking............................................................................................................................................. 471

Conguring Shared LAG State Tracking....................................................................................................................471

Important Points about Shared LAG State Tracking................................................................................................. 472

LACP Basic Conguration Example................................................................................................................................473

Congure a LAG on ALPHA......................................................................................................................................473

17

29 Layer 2.......................................................................................................................481

Manage the MAC Address Table..................................................................................................................................... 481

Clearing the MAC Address Table...............................................................................................................................481

Setting the Aging Time for Dynamic Entries..............................................................................................................481

Conguring a Static MAC Address............................................................................................................................481

Displaying the MAC Address Table........................................................................................................................... 482

MAC Learning Limit........................................................................................................................................................482

Setting the MAC Learning Limit............................................................................................................................... 483

mac learning-limit Dynamic...................................................................................................................................... 483

mac learning-limit mac-address-sticky..................................................................................................................... 483

mac learning-limit station-move............................................................................................................................... 483

mac learning-limit no-station-move..........................................................................................................................484

Learning Limit Violation Actions................................................................................................................................484

Setting Station Move Violation Actions.................................................................................................................... 484

Recovering from Learning Limit and Station Move Violations...................................................................................485

NIC Teaming.................................................................................................................................................................. 485

Congure Redundant Pairs............................................................................................................................................ 486

Important Points about Conguring Redundant Pairs...............................................................................................488

Far-End Failure Detection...............................................................................................................................................489

FEFD State Changes................................................................................................................................................490

Conguring FEFD.....................................................................................................................................................490

Enabling FEFD on an Interface..................................................................................................................................491

Debugging FEFD......................................................................................................................................................492

30 Link Layer Discovery Protocol (LLDP).......................................................................494

802.1AB (LLDP) Overview............................................................................................................................................. 494

Protocol Data Units..................................................................................................................................................494

Optional TLVs.................................................................................................................................................................495

Management TLVs...................................................................................................................................................495

TIA-1057 (LLDP-MED) Overview....................................................................................................................................497

TIA Organizationally Specic TLVs............................................................................................................................497

Congure LLDP.............................................................................................................................................................. 501

Related Conguration Tasks......................................................................................................................................501

Important Points to Remember.................................................................................................................................501

LLDP Compatibility................................................................................................................................................... 501

CONFIGURATION versus INTERFACE Congurations................................................................................................... 501

Enabling LLDP................................................................................................................................................................502

Disabling and Undoing LLDP.................................................................................................................................... 502

Enabling LLDP on Management Ports........................................................................................................................... 502

Disabling and Undoing LLDP on Management Ports................................................................................................ 503

Advertising TLVs............................................................................................................................................................ 503

Viewing the LLDP Conguration.................................................................................................................................... 504

Viewing Information Advertised by Adjacent LLDP Agents............................................................................................ 505

Conguring LLDPDU Intervals....................................................................................................................................... 506

Conguring Transmit and Receive Mode........................................................................................................................506

18

Conguring the Time to Live Value.................................................................................................................................507

Debugging LLDP............................................................................................................................................................508

Relevant Management Objects......................................................................................................................................508

31 Microsoft Network Load Balancing.............................................................................514

NLB Unicast Mode Scenario...........................................................................................................................................514

NLB Multicast Mode Scenario........................................................................................................................................ 514

Limitations of the NLB Feature....................................................................................................................................... 515

Microsoft Clustering....................................................................................................................................................... 515

Enable and Disable VLAN Flooding ................................................................................................................................ 515

Conguring a Switch for NLB ........................................................................................................................................ 516

Enabling a Switch for Multicast NLB.........................................................................................................................516

32 Multicast Source Discovery Protocol (MSDP)........................................................... 517

Protocol Overview.......................................................................................................................................................... 517

Anycast RP.....................................................................................................................................................................518

Implementation Information............................................................................................................................................ 518

Congure Multicast Source Discovery Protocol..............................................................................................................518

Related Conguration Tasks......................................................................................................................................519

Enable MSDP.................................................................................................................................................................523

Manage the Source-Active Cache................................................................................................................................. 524

Viewing the Source-Active Cache............................................................................................................................524

Limiting the Source-Active Cache............................................................................................................................524

Clearing the Source-Active Cache........................................................................................................................... 525

Enabling the Rejected Source-Active Cache............................................................................................................525

Accept Source-Active Messages that Fail the RFP Check.............................................................................................525

Specifying Source-Active Messages.............................................................................................................................. 529

Limiting the Source-Active Messages from a Peer.........................................................................................................530

Preventing MSDP from Caching a Local Source............................................................................................................ 530

Preventing MSDP from Caching a Remote Source.........................................................................................................531

Preventing MSDP from Advertising a Local Source........................................................................................................ 531

Logging Changes in Peership States.............................................................................................................................. 532

Terminating a Peership...................................................................................................................................................532

Clearing Peer Statistics..................................................................................................................................................533

Debugging MSDP.......................................................................................................................................................... 533

MSDP with Anycast RP................................................................................................................................................. 534

Conguring Anycast RP.................................................................................................................................................535

Reducing Source-Active Message Flooding............................................................................................................. 536

Specifying the RP Address Used in SA Messages....................................................................................................536

MSDP Sample Congurations........................................................................................................................................539

33 Multiple Spanning Tree Protocol (MSTP).................................................................. 542

Protocol Overview......................................................................................................................................................... 542

Spanning Tree Variations................................................................................................................................................543

Implementation Information......................................................................................................................................543

Congure Multiple Spanning Tree Protocol.................................................................................................................... 543

19

Related Conguration Tasks.....................................................................................................................................543

Enable Multiple Spanning Tree Globally.......................................................................................................................... 544

Adding and Removing Interfaces....................................................................................................................................544

Creating Multiple Spanning Tree Instances.....................................................................................................................544

Inuencing MSTP Root Selection...................................................................................................................................545

Interoperate with Non-Dell Bridges................................................................................................................................ 546

Changing the Region Name or Revision......................................................................................................................... 546

Modifying Global Parameters..........................................................................................................................................547

Modifying the Interface Parameters...............................................................................................................................548

Conguring an EdgePort................................................................................................................................................549

Flush MAC Addresses after a Topology Change.............................................................................................................549

MSTP Sample Congurations........................................................................................................................................ 550

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

Example Running-Conguration...............................................................................................................................550

Debugging and Verifying MSTP Congurations............................................................................................................. 553

34 Multicast Features.................................................................................................... 555

Enabling IP Multicast..................................................................................................................................................... 555

Implementation Information........................................................................................................................................... 555

Multicast Policies...........................................................................................................................................................556

IPv4 Multicast Policies.............................................................................................................................................556

35 Object Tracking.........................................................................................................563

Object Tracking Overview..............................................................................................................................................563

Track Layer 2 Interfaces...........................................................................................................................................564

Track Layer 3 Interfaces...........................................................................................................................................564

Track IPv4 and IPv6 Routes..................................................................................................................................... 564

Set Tracking Delays..................................................................................................................................................565

VRRP Object Tracking............................................................................................................................................. 566

Object Tracking Conguration........................................................................................................................................566

Tracking a Layer 2 Interface..................................................................................................................................... 566

Tracking a Layer 3 Interface..................................................................................................................................... 567

Track an IPv4/IPv6 Route........................................................................................................................................568

Displaying Tracked Objects.............................................................................................................................................572

36 Open Shortest Path First (OSPFv2 and OSPFv3)..................................................... 574

Protocol Overview..........................................................................................................................................................574

Autonomous System (AS) Areas...............................................................................................................................574

Area Types............................................................................................................................................................... 575

Networks and Neighbors..........................................................................................................................................576

Router Types............................................................................................................................................................ 576

Designated and Backup Designated Routers............................................................................................................ 578

Link-State Advertisements (LSAs)........................................................................................................................... 578

Router Priority and Cost...........................................................................................................................................579

OSPF with Dell Networking OS..................................................................................................................................... 580

Graceful Restart....................................................................................................................................................... 581

20

Dell PowerSwitch S4810P User guide

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