Dell PowerSwitch S4810-ON Owner's manual

Dell Conguration Guide for the S4810 System

9.14(1.5)

Notes, cautions, and warnings

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

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

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

may be trademarks of their respective owners.

2019 - 05

Rev. A00

Contents

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................47

Entering CLI commands Using an SSH Connection..............................................................................................47

Executing Local CLI Scripts Using an SSH Connection........................................................................................ 47

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

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

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

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

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

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

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

Conguring the Enable Password..................................................................................................................................50

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

Copy Files to and from the System..........................................................................................................................51

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

Save the Running-Conguration..............................................................................................................................53

Congure the Overload Bit for a Startup Scenario............................................................................................... 54

Viewing Files...............................................................................................................................................................54

Compressing Conguration Files............................................................................................................................. 55

Managing the File System...............................................................................................................................................57

Enabling Software Features on Devices Using a Command Option..........................................................................58

View Command History.................................................................................................................................................. 58

Contents

3

Upgrading Dell EMC Networking OS............................................................................................................................ 60

Verify Software Images Before Installation...................................................................................................................60

Using HTTP for File Transfers.........................................................................................................................................61

4 Management................................................................................................................................................63

Conguring Privilege Levels............................................................................................................................................63

Creating a Custom Privilege Level...........................................................................................................................64

Removing a Command from EXEC Mode.............................................................................................................. 64

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................64

Allowing Access to CONFIGURATION Mode Commands....................................................................................64

Allowing Access to Dierent Modes........................................................................................................................64

Applying a Privilege Level to a Username............................................................................................................... 66

Applying a Privilege Level to a Terminal Line.......................................................................................................... 66

Conguring Logging........................................................................................................................................................ 66

Audit and Security Logs............................................................................................................................................ 67

Conguring Logging Format ...................................................................................................................................69

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

Setting Up a Secure Connection to a Syslog Server.............................................................................................70

Sending System Messages to a Syslog Server.......................................................................................................71

Track Login Activity.......................................................................................................................................................... 71

Restrictions for Tracking Login Activity................................................................................................................... 71

Conguring Login Activity Tracking..........................................................................................................................71

Display Login Statistics..............................................................................................................................................72

Limit Concurrent Login Sessions....................................................................................................................................73

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................73

Conguring Concurrent Session Limit.....................................................................................................................74

Enabling the System to Clear Existing Sessions.....................................................................................................74

Enabling Secured CLI Mode........................................................................................................................................... 75

Log Messages in the Internal Buer..............................................................................................................................75

Conguration Task List for System Log Management.......................................................................................... 75

Disabling System Logging............................................................................................................................................... 75

Sending System Messages to a Syslog Server............................................................................................................ 76

Conguring a UNIX System as a Syslog Server.....................................................................................................76

Changing System Logging Settings...............................................................................................................................76

Display the Logging Buer and the Logging Conguration........................................................................................ 77

Conguring a UNIX Logging Facility Level.................................................................................................................... 78

Synchronizing Log Messages......................................................................................................................................... 79

Enabling Timestamp on Syslog Messages.................................................................................................................... 79

File Transfer Services...................................................................................................................................................... 82

Conguration Task List for File Transfer Services..................................................................................................82

Enabling the FTP Server...........................................................................................................................................82

Conguring FTP Server Parameters....................................................................................................................... 83

Conguring FTP Client Parameters.........................................................................................................................83

Terminal Lines...................................................................................................................................................................84

Denying and Permitting Access to a Terminal Line................................................................................................84

Conguring Login Authentication for Terminal Lines.............................................................................................85

4

Contents

Setting Timeout for EXEC Privilege Mode................................................................................................................... 86

Using Telnet to get to Another Network Device..........................................................................................................86

Lock CONFIGURATION Mode....................................................................................................................................... 87

Viewing the Conguration Lock Status...................................................................................................................87

Recovering from a Forgotten Password....................................................................................................................... 88

Recovering from a Forgotten Enable Password.....................................................................................................89

Recovering from a Failed Start...................................................................................................................................... 89

Restoring the Factory Default Settings........................................................................................................................ 90

Important Points to Remember................................................................................................................................90

Restoring Factory Default Environment Variables................................................................................................. 90

Dell EMC Networking OS Security Hardening............................................................................................................. 92

Dell EMC Networking OS Image Verication......................................................................................................... 92

Startup Conguration Verication........................................................................................................................... 93

Conguring the root User Password....................................................................................................................... 94

Locking Access to GRUB Interface......................................................................................................................... 95

Enabling User Lockout for Failed Login Attempts..................................................................................................95

5 802.1X......................................................................................................................................................... 96

Port-Authentication Process..........................................................................................................................................98

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

Conguring 802.1X...........................................................................................................................................................99

Related Conguration Tasks..................................................................................................................................... 99

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

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

Conguring MAC addresses for a do1x Prole............................................................................................................ 101

Conguring Request Identity Re-Transmissions......................................................................................................... 102

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

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

Re-Authenticating a Port.............................................................................................................................................. 104

Conguring Timeouts.................................................................................................................................................... 105

Conguring Dynamic VLAN Assignment with Port Authentication.........................................................................106

Guest and Authentication-Fail VLANs......................................................................................................................... 107

Conguring a Guest VLAN......................................................................................................................................107

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

Conguring dot1x Prole .............................................................................................................................................. 108

Conguring the Static MAB and MAB Prole ........................................................................................................... 109

Conguring Critical VLAN .............................................................................................................................................110

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)....................................111

Optimizing CAM Utilization During the Attachment of ACLs to VLANs...................................................................111

Guidelines for Conguring ACL VLAN Groups............................................................................................................ 112

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters................................................112

Conguring ACL VLAN Groups............................................................................................................................... 112

Conguring FP Blocks for VLAN Parameters........................................................................................................113

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

Allocating FP Blocks for VLAN Processes................................................................................................................... 115

Contents

5

7 Access Control Lists (ACLs)........................................................................................................................ 117

IP Access Control Lists (ACLs)......................................................................................................................................118

CAM Usage................................................................................................................................................................119

Implementing ACLs on Dell EMC Networking OS.................................................................................................119

Important Points to Remember.....................................................................................................................................121

Conguration Task List for Route Maps.................................................................................................................121

Conguring Match Routes...................................................................................................................................... 123

Conguring Set Conditions..................................................................................................................................... 125

Congure a Route Map for Route Redistribution.................................................................................................126

Congure a Route Map for Route Tagging........................................................................................................... 126

Continue Clause........................................................................................................................................................127

IP Fragment Handling.....................................................................................................................................................127

IP Fragments ACL Examples...................................................................................................................................127

Layer 4 ACL Rules Examples...................................................................................................................................128

Congure a Standard IP ACL........................................................................................................................................ 128

Conguring a Standard IP ACL Filter..................................................................................................................... 129

Congure an Extended IP ACL.....................................................................................................................................130

Conguring Filters with a Sequence Number.......................................................................................................130

Conguring Filters Without a Sequence Number.................................................................................................132

Congure Layer 2 and Layer 3 ACLs............................................................................................................................132

Assign an IP ACL to an Interface..................................................................................................................................133

Applying an IP ACL.........................................................................................................................................................133

Counting ACL Hits....................................................................................................................................................134

Congure Ingress ACLs................................................................................................................................................. 134

Congure Egress ACLs..................................................................................................................................................135

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 136

IP Prex Lists.................................................................................................................................................................. 136

Implementation Information.....................................................................................................................................137

Conguration Task List for Prex Lists.................................................................................................................. 137

ACL Remarks.................................................................................................................................................................. 140

Conguring a Remark.............................................................................................................................................. 140

Deleting a Remark.....................................................................................................................................................141

ACL Resequencing......................................................................................................................................................... 142

Resequencing an ACL or Prex List.......................................................................................................................142

Route Maps.....................................................................................................................................................................143

Implementation Information.................................................................................................................................... 143

Logging of ACL Processes............................................................................................................................................ 144

Guidelines for Conguring ACL Logging................................................................................................................145

Conguring ACL Logging........................................................................................................................................ 145

Flow-Based Monitoring..................................................................................................................................................146

Behavior of Flow-Based Monitoring.......................................................................................................................146

Enabling Flow-Based Monitoring............................................................................................................................147

8 Bidirectional Forwarding Detection (BFD).................................................................................................. 149

How BFD Works............................................................................................................................................................. 149

6

Contents

BFD Packet Format................................................................................................................................................. 150

BFD Sessions............................................................................................................................................................. 151

BFD Three-Way Handshake.................................................................................................................................... 152

Session State Changes............................................................................................................................................154

Important Points to Remember.................................................................................................................................... 154

Congure BFD................................................................................................................................................................ 155

Congure BFD for Physical Ports.......................................................................................................................... 155

Congure BFD for Static Routes............................................................................................................................157

Congure BFD for OSPF.........................................................................................................................................159

Congure BFD for OSPFv3.....................................................................................................................................163

Congure BFD for IS-IS...........................................................................................................................................166

Congure BFD for BGP...........................................................................................................................................168

Congure BFD for VRRP.........................................................................................................................................176

Conguring Protocol Liveness................................................................................................................................ 179

Troubleshooting BFD................................................................................................................................................179

Establishing Sessions for Static Routes for Default VRF.................................................................................... 180

9 Border Gateway Protocol (BGP)................................................................................................................ 183

BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 183

BGP Autonomous Systems.....................................................................................................................................183

AS4 Number Representation.................................................................................................................................. 185

Four-Byte AS Numbers............................................................................................................................................187

BGP router ID............................................................................................................................................................187

Sessions and Peers...................................................................................................................................................187

Establish a Session................................................................................................................................................... 188

BGP Attributes for selecting Best Path.................................................................................................................188

Multiprotocol BGP....................................................................................................................................................193

BGP global and address family conguration........................................................................................................194

Implement BGP with Dell EMC Networking OS...................................................................................................196

Conguration Information........................................................................................................................................199

Basic BGP conguration tasks..................................................................................................................................... 199

Prerequisite for conguring a BGP network......................................................................................................... 199

Restrictions.............................................................................................................................................................. 200

Enabling BGP........................................................................................................................................................... 200

Enabling four-byte autonomous system numbers............................................................................................... 202

Changing a BGP router ID...................................................................................................................................... 203

Conguring AS4 Number Representations.......................................................................................................... 203

Conguring a BGP peer..........................................................................................................................................205

Example-Conguring BGP routing between peers............................................................................................. 206

BGP peer group....................................................................................................................................................... 207

Advanced BGP conguration tasks..............................................................................................................................213

Route-refresh and Soft-reconguration................................................................................................................214

Aggregating Routes..................................................................................................................................................216

Filtering BGP.............................................................................................................................................................218

Conguring BGP Fast Fall-Over............................................................................................................................ 225

Conguring Passive Peering...................................................................................................................................226

Contents

7

Enabling Graceful Restart....................................................................................................................................... 227

Redistributing Routes..............................................................................................................................................228

Enabling Additional Paths....................................................................................................................................... 229

Conguring IP Community Lists............................................................................................................................ 230

Conguring an IP Extended Community List........................................................................................................ 231

Congure BGP attributes....................................................................................................................................... 232

Enabling Multipath...................................................................................................................................................236

Route Reectors...................................................................................................................................................... 237

Enabling Route Flap Dampening............................................................................................................................ 238

Changing BGP keepalive and hold timers.............................................................................................................240

Setting the extended timer..................................................................................................................................... 241

Enabling or disabling BGP neighbors.....................................................................................................................242

Route Map Continue............................................................................................................................................... 243

Conguring BGP Confederations.......................................................................................................................... 243

Conguring a BGP VRF address family.................................................................................................................244

Maintaining Existing AS Numbers During an AS Migration................................................................................ 245

Allowing an AS Number to Appear in its Own AS Path...................................................................................... 246

Enabling MBGP Congurations..............................................................................................................................247

MBGP support for IPv6.......................................................................................................................................... 247

Conguring IPv6 MBGP between peers...............................................................................................................248

Example-Conguring IPv4 and IPv6 neighbors................................................................................................... 249

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor.......................................... 251

BGP Regular Expression Optimization..................................................................................................................253

Debugging BGP....................................................................................................................................................... 253

10 Content Addressable Memory (CAM)...................................................................................................... 256

CAM Allocation.............................................................................................................................................................. 256

Test CAM Usage............................................................................................................................................................258

View CAM-ACL Settings.............................................................................................................................................. 258

View CAM Usage...........................................................................................................................................................260

Conguring CAM Threshold and Silence Period........................................................................................................260

Setting CAM Threshold and Silence Period......................................................................................................... 260

CAM Optimization.......................................................................................................................................................... 261

Troubleshoot CAM Proling..........................................................................................................................................262

QoS CAM Region Limitation...................................................................................................................................262

11 Control Plane Policing (CoPP).................................................................................................................. 263

Congure Control Plane Policing................................................................................................................................. 264

Conguring CoPP for Protocols............................................................................................................................ 265

Conguring CoPP for CPU Queues.......................................................................................................................267

CoPP for OSPFv3 Packets.....................................................................................................................................268

Conguring CoPP for OSPFv3............................................................................................................................... 271

Displaying CoPP Conguration .............................................................................................................................. 271

12 Data Center Bridging (DCB)..................................................................................................................... 274

Ethernet Enhancements in Data Center Bridging......................................................................................................274

8

Contents

Priority-Based Flow Control................................................................................................................................... 275

Enhanced Transmission Selection..........................................................................................................................276

Data Center Bridging Exchange Protocol (DCBx)............................................................................................... 277

Data Center Bridging in a Trac Flow...................................................................................................................278

Enabling Data Center Bridging..................................................................................................................................... 278

DCB Maps and its Attributes..................................................................................................................................279

QoS dot1p Trac Classication and Queue Assignment..........................................................................................280

Data Center Bridging: Default Conguration.............................................................................................................. 281

Conguring Priority-Based Flow Control.....................................................................................................................281

Conguring Lossless Queues................................................................................................................................. 282

Conguring PFC in a DCB Map................................................................................................................................... 283

PFC Conguration Notes........................................................................................................................................283

PFC Prerequisites and Restrictions....................................................................................................................... 284

Applying a DCB Map on a Port.................................................................................................................................... 284

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................285

Pause and Resume of Trac..................................................................................................................................285

Buer Sizes for Lossless or PFC Packets............................................................................................................ 285

Conguring PFC without a DCB Map.........................................................................................................................286

Conguring Lossless QueuesExample:..................................................................................................................286

Behavior of Tagged Packets.........................................................................................................................................288

Conguration Example for DSCP and PFC Priorities................................................................................................288

Using PFC to Manage Converged Ethernet Trac...................................................................................................289

Congure Enhanced Transmission Selection..............................................................................................................289

ETS Prerequisites and Restrictions....................................................................................................................... 290

Creating an ETS Priority Group............................................................................................................................. 290

ETS Operation with DCBx.......................................................................................................................................291

Conguring Bandwidth Allocation for DCBx CIN................................................................................................. 291

Conguring ETS in a DCB Map..............................................................................................................................292

Hierarchical Scheduling in ETS Output Policies...................................................................................................294

Using ETS to Manage Converged Ethernet Trac.............................................................................................294

Applying DCB Policies in a Switch Stack.................................................................................................................... 294

Congure a DCBx Operation........................................................................................................................................294

DCBx Operation.......................................................................................................................................................295

DCBx Port Roles......................................................................................................................................................295

DCB Conguration Exchange................................................................................................................................ 296

Conguration Source Election................................................................................................................................297

Propagation of DCB Information............................................................................................................................297

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 298

DCBx Example......................................................................................................................................................... 298

DCBx Prerequisites and Restrictions.....................................................................................................................299

Conguring DCBx....................................................................................................................................................299

Verifying the DCB Conguration................................................................................................................................. 303

QoS dot1p Trac Classication and Queue Assignment............................................................................................311

Conguring the Dynamic Buer Method.................................................................................................................... 312

Sample DCB Conguration............................................................................................................................................313

Contents

9

PFC and ETS Conguration Command Examples............................................................................................... 315

13 Dynamic Host Conguration Protocol (DHCP)..........................................................................................316

DHCP Packet Format and Options.............................................................................................................................. 316

Assign an IP Address using DHCP................................................................................................................................318

Implementation Information.......................................................................................................................................... 319

Congure the System to be a DHCP Server.............................................................................................................. 319

Conguring the Server for Automatic Address Allocation..................................................................................320

Specifying a Default Gateway.................................................................................................................................321

Congure a Method of Hostname Resolution...................................................................................................... 321

Using DNS for Address Resolution.........................................................................................................................321

Using NetBIOS WINS for Address Resolution..................................................................................................... 322

Creating Manual Binding Entries............................................................................................................................322

Debugging the DHCP Server................................................................................................................................. 322

Using DHCP Clear Commands...............................................................................................................................323

Congure the System to be a Relay Agent................................................................................................................ 323

Congure the System to be a DHCP Client............................................................................................................... 325

Conguring the DHCP Client System...................................................................................................................325

DHCP Client on a Management Interface............................................................................................................326

DHCP Client Operation with Other Features....................................................................................................... 327

Congure the System for User Port Stacking (Option 230)....................................................................................328

Conguring DHCP relay source interface...................................................................................................................328

Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 328

Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................329

Congure Secure DHCP...............................................................................................................................................330

Option 82..................................................................................................................................................................330

DHCPv6 relay agent options...................................................................................................................................331

DHCP Snooping.......................................................................................................................................................332

Conguring the DHCP secondary-subnet............................................................................................................336

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 337

Dynamic ARP Inspection.........................................................................................................................................337

Conguring Dynamic ARP Inspection................................................................................................................... 338

Source Address Validation............................................................................................................................................ 339

Enabling IP Source Address Validation..................................................................................................................339

DHCP MAC Source Address Validation................................................................................................................ 340

Enabling IP+MAC Source Address Validation.......................................................................................................340

Viewing the Number of SAV Dropped Packets.................................................................................................... 341

Clearing the Number of SAV Dropped Packets....................................................................................................341

14 Equal Cost Multi-Path (ECMP)................................................................................................................ 342

Conguring the Hash Algorithm.................................................................................................................................. 342

Enabling Deterministic ECMP Next Hop.................................................................................................................... 342

Conguring the Hash Algorithm Seed........................................................................................................................ 342

Link Bundle Monitoring................................................................................................................................................. 343

Managing ECMP Group Paths...............................................................................................................................343

Creating an ECMP Group Bundle.......................................................................................................................... 344

10

Contents

Modifying the ECMP Group Threshold.................................................................................................................344

15 FIP Snooping............................................................................................................................................346

Fibre Channel over Ethernet........................................................................................................................................ 346

Ensure Robustness in a Converged Ethernet Network............................................................................................346

FIP Snooping on Ethernet Bridges.............................................................................................................................. 348

FIP Snooping in a Switch Stack...................................................................................................................................350

Using FIP Snooping....................................................................................................................................................... 350

FIP Snooping Prerequisites.....................................................................................................................................350

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

Enabling the FCoE Transit Feature.........................................................................................................................351

Enable FIP Snooping on VLANs.............................................................................................................................352

Congure the FC-MAP Value................................................................................................................................ 352

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................352

Congure a Port for a Bridge-to-FCF Link...........................................................................................................352

Impact on Other Software Features..................................................................................................................... 352

FIP Snooping Restrictions...................................................................................................................................... 353

Conguring FIP Snooping.......................................................................................................................................353

Displaying FIP Snooping Information...........................................................................................................................354

FCoE Transit Conguration Example.......................................................................................................................... 359

16 FIPS Cryptography................................................................................................................................... 361

Conguration Tasks........................................................................................................................................................361

Preparing the System.................................................................................................................................................... 361

Enabling FIPS Mode...................................................................................................................................................... 362

Generating Host-Keys...................................................................................................................................................362

Monitoring FIPS Mode Status......................................................................................................................................362

Disabling FIPS Mode..................................................................................................................................................... 363

17 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 364

Protocol Overview.........................................................................................................................................................364

Ring Status...............................................................................................................................................................365

Multiple FRRP Rings............................................................................................................................................... 365

Important FRRP Points...........................................................................................................................................366

Important FRRP Concepts..................................................................................................................................... 367

Implementing FRRP.......................................................................................................................................................368

FRRP Conguration...................................................................................................................................................... 368

Creating the FRRP Group.......................................................................................................................................368

Conguring the Control VLAN...............................................................................................................................369

Conguring and Adding the Member VLANs.......................................................................................................370

Setting the FRRP Timers.........................................................................................................................................371

Clearing the FRRP Counters...................................................................................................................................371

Viewing the FRRP Conguration............................................................................................................................371

Viewing the FRRP Information................................................................................................................................371

Troubleshooting FRRP...................................................................................................................................................372

Conguration Checks.............................................................................................................................................. 372

Contents

11

Sample Conguration and Topology............................................................................................................................ 372

FRRP Support on VLT...................................................................................................................................................373

Example Scenario.....................................................................................................................................................374

Important Points to Remember..............................................................................................................................375

18 GARP VLAN Registration Protocol (GVRP).............................................................................................. 376

Important Points to Remember....................................................................................................................................376

Congure GVRP.............................................................................................................................................................377

Related Conguration Tasks................................................................................................................................... 377

Enabling GVRP Globally................................................................................................................................................ 378

Enabling GVRP on a Layer 2 Interface........................................................................................................................ 378

Congure GVRP Registration.......................................................................................................................................378

Congure a GARP Timer...............................................................................................................................................379

RPM Redundancy..........................................................................................................................................................379

19 High Availability (HA)................................................................................................................................ 381

Component Redundancy...............................................................................................................................................381

Automatic and Manual Stack Unit Failover........................................................................................................... 381

Synchronization between Management and Standby Units.............................................................................. 382

Forcing a Stack Unit Failover................................................................................................................................. 382

Disabling Auto-Reboot............................................................................................................................................ 383

Manually Synchronizing Management and Standby Units................................................................................. 383

Pre-Conguring a Stack Unit Slot............................................................................................................................... 383

Removing a Provisioned Logical Stack Unit............................................................................................................... 384

Hitless Behavior............................................................................................................................................................. 384

Graceful Restart.............................................................................................................................................................384

Software Resiliency....................................................................................................................................................... 385

Software Component Health Monitoring............................................................................................................. 385

System Health Monitoring......................................................................................................................................385

Failure and Event Logging...................................................................................................................................... 385

Hot-Lock Behavior.........................................................................................................................................................386

20 Internet Group Management Protocol (IGMP)......................................................................................... 387

IGMP Implementation Information...............................................................................................................................387

IGMP Protocol Overview.............................................................................................................................................. 387

IGMP Version 2........................................................................................................................................................ 387

IGMP Version 3........................................................................................................................................................ 389

Congure IGMP............................................................................................................................................................. 392

Related Conguration Tasks...................................................................................................................................392

Viewing IGMP Enabled Interfaces............................................................................................................................... 393

Selecting an IGMP Version...........................................................................................................................................393

Viewing IGMP Groups...................................................................................................................................................394

Adjusting Timers............................................................................................................................................................ 394

Adjusting Query and Response Timers................................................................................................................. 394

Preventing a Host from Joining a Group.................................................................................................................... 395

Enabling IGMP Immediate-Leave.................................................................................................................................398

12

Contents

IGMP Snooping..............................................................................................................................................................398

IGMP Snooping Implementation Information....................................................................................................... 398

Conguring IGMP Snooping...................................................................................................................................398

Removing a Group-Port Association.....................................................................................................................399

Disabling Multicast Flooding...................................................................................................................................399

Specifying a Port as Connected to a Multicast Router...................................................................................... 400

Conguring the Switch as Querier........................................................................................................................ 400

Fast Convergence after MSTP Topology Changes....................................................................................................401

Egress Interface Selection (EIS) for HTTP and IGMP Applications.........................................................................401

Protocol Separation..................................................................................................................................................401

Enabling and Disabling Management Egress Interface Selection...................................................................... 402

Handling of Management Route Conguration................................................................................................... 403

Handling of Switch-Initiated Trac.......................................................................................................................404

Handling of Switch-Destined Trac......................................................................................................................404

Handling of Transit Trac (Trac Separation).................................................................................................... 405

Mapping of Management Applications and Trac Type.....................................................................................405

Behavior of Various Applications for Switch-Initiated Trac ............................................................................406

Behavior of Various Applications for Switch-Destined Trac ...........................................................................407

Interworking of EIS With Various Applications.....................................................................................................408

Designating a Multicast Router Interface...................................................................................................................408

21 Interfaces..................................................................................................................................................410

Basic Interface Conguration........................................................................................................................................410

Advanced Interface Conguration............................................................................................................................... 410

Interface Types................................................................................................................................................................ 411

View Basic Interface Information.................................................................................................................................. 411

Resetting an Interface to its Factory Default State................................................................................................... 413

Enabling a Physical Interface.........................................................................................................................................413

Physical Interfaces..........................................................................................................................................................414

Conguration Task List for Physical Interfaces.....................................................................................................414

Overview of Layer Modes....................................................................................................................................... 414

Conguring Layer 2 (Data Link) Mode.................................................................................................................. 415

Conguring Layer 2 (Interface) Mode................................................................................................................... 415

Conguring Layer 3 (Network) Mode................................................................................................................... 415

Conguring Layer 3 (Interface) Mode................................................................................................................... 416

Egress Interface Selection (EIS)...................................................................................................................................417

Important Points to Remember.............................................................................................................................. 417

Conguring EIS......................................................................................................................................................... 417

Management Interfaces.................................................................................................................................................418

Conguring Management Interfaces..................................................................................................................... 418

Conguring a Management Interface on an Ethernet Port................................................................................ 419

VLAN Interfaces............................................................................................................................................................ 420

Loopback Interfaces.......................................................................................................................................................421

Null Interfaces................................................................................................................................................................. 421

Port Channel Interfaces.................................................................................................................................................421

Port Channel Denition and Standards.................................................................................................................422

Contents

13

Port Channel Benets............................................................................................................................................. 422

Port Channel Implementation.................................................................................................................................422

Interfaces in Port Channels.................................................................................................................................... 423

Conguration Tasks for Port Channel Interfaces.................................................................................................423

Creating a Port Channel..........................................................................................................................................423

Adding a Physical Interface to a Port Channel.....................................................................................................424

Reassigning an Interface to a New Port Channel................................................................................................425

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 426

Adding or Removing a Port Channel from a VLAN............................................................................................. 426

Assigning an IP Address to a Port Channel...........................................................................................................427

Deleting or Disabling a Port Channel..................................................................................................................... 428

Load Balancing Through Port Channels................................................................................................................428

Changing the Hash Algorithm................................................................................................................................ 428

Bulk Conguration......................................................................................................................................................... 429

Interface Range........................................................................................................................................................429

Bulk Conguration Examples..................................................................................................................................430

Dening Interface Range Macros................................................................................................................................. 431

Dene the Interface Range..................................................................................................................................... 431

Choosing an Interface-Range Macro.....................................................................................................................431

Monitoring and Maintaining Interfaces........................................................................................................................432

Maintenance Using TDR......................................................................................................................................... 433

Non Dell-Qualied Transceivers................................................................................................................................... 433

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 434

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................434

Important Points to Remember............................................................................................................................. 435

Example Scenarios.................................................................................................................................................. 435

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................439

Link Dampening..............................................................................................................................................................439

Important Points to Remember............................................................................................................................. 440

Conguration Example of Link Dampening...........................................................................................................440

Enabling Link Dampening........................................................................................................................................442

Link Bundle Monitoring................................................................................................................................................. 443

Using Ethernet Pause Frames for Flow Control........................................................................................................ 444

Enabling Pause Frames........................................................................................................................................... 444

Congure the MTU Size on an Interface....................................................................................................................445

Port-Pipes.......................................................................................................................................................................446

Auto-Negotiation on Ethernet Interfaces...................................................................................................................446

Setting the Speed of Ethernet Interfaces............................................................................................................ 446

Set Auto-Negotiation Options................................................................................................................................447

View Advanced Interface Information.........................................................................................................................448

Conguring the Interface Sampling Size.............................................................................................................. 448

Conguring the Trac Sampling Size Globally.................................................................................................... 450

Dynamic Counters.......................................................................................................................................................... 451

Clearing Interface Counters.................................................................................................................................... 451

22 Internet Protocol Security (IPSec).......................................................................................................... 453

14

Contents

Conguring IPSec .........................................................................................................................................................453

23 IPv4 Routing............................................................................................................................................455

IP Addresses...................................................................................................................................................................456

Implementation Information................................................................................................................................... 456

Conguration Tasks for IP Addresses......................................................................................................................... 456

Assigning IP Addresses to an Interface.......................................................................................................................456

Conguring Static Routes.............................................................................................................................................457

Adding description for IPv4 and IPv6 static routes.............................................................................................458

Congure Static Routes for the Management Interface..........................................................................................459

IPv4 Path MTU Discovery Overview.......................................................................................................................... 459

Packet handling during MTU mismatch................................................................................................................460

Using the Congured Source IP Address in ICMP Messages..................................................................................460

Conguring the ICMP Source Interface............................................................................................................... 460

Conguring the Duration to Establish a TCP Connection........................................................................................ 460

Enabling Directed Broadcast.........................................................................................................................................461

Resolution of Host Names............................................................................................................................................ 461

Enabling Dynamic Resolution of Host Names............................................................................................................462

Specifying the Local System Domain and a List of Domains................................................................................... 462

Conguring DNS with Traceroute................................................................................................................................463

ARP................................................................................................................................................................................. 463

Conguration Tasks for ARP........................................................................................................................................ 464

Conguring Static ARP Entries....................................................................................................................................464

Enabling Proxy ARP.......................................................................................................................................................464

Clearing ARP Cache......................................................................................................................................................465

ARP Learning via Gratuitous ARP............................................................................................................................... 465

Enabling ARP Learning via Gratuitous ARP................................................................................................................465

ARP Learning via ARP Request................................................................................................................................... 465

Conguring ARP Retries...............................................................................................................................................466

ICMP................................................................................................................................................................................467

Conguration Tasks for ICMP...................................................................................................................................... 467

Enabling ICMP Unreachable Messages...................................................................................................................... 467

ICMP Redirects.............................................................................................................................................................. 467

UDP Helper.....................................................................................................................................................................468

Congure UDP Helper.............................................................................................................................................468

Important Points to Remember............................................................................................................................. 469

Enabling UDP Helper.....................................................................................................................................................469

Congurations Using UDP Helper............................................................................................................................... 469

UDP Helper with Broadcast-All Addresses.................................................................................................................469

UDP Helper with Subnet Broadcast Addresses.........................................................................................................470

UDP Helper with Congured Broadcast Addresses...................................................................................................471

UDP Helper with No Congured Broadcast Addresses.............................................................................................471

Troubleshooting UDP Helper.........................................................................................................................................471

24 IPv6 Routing............................................................................................................................................ 473

Protocol Overview......................................................................................................................................................... 473

Contents

15

Extended Address Space........................................................................................................................................ 474

Stateless Autoconguration....................................................................................................................................474

IPv6 Headers............................................................................................................................................................ 474

IPv6 Header Fields...................................................................................................................................................475

Extension Header Fields..........................................................................................................................................477

Addressing................................................................................................................................................................ 478

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 479

ICMPv6...........................................................................................................................................................................480

Path MTU discovery...................................................................................................................................................... 481

IPv6 Neighbor Discovery...............................................................................................................................................481

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................482

Conguration Task List for IPv6 RDNSS.................................................................................................................... 482

Conguring the IPv6 Recursive DNS Server....................................................................................................... 482

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 483

Displaying IPv6 RDNSS Information......................................................................................................................484

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 484

Conguration Tasks for IPv6........................................................................................................................................485

Adjusting Your CAM-Prole....................................................................................................................................485

Assigning an IPv6 Address to an Interface...........................................................................................................486

Assigning a Static IPv6 Route................................................................................................................................486

Conguring Telnet with IPv6.................................................................................................................................. 487

SNMP over IPv6...................................................................................................................................................... 487

Displaying IPv6 Information.................................................................................................................................... 487

Displaying an IPv6 Interface Information.............................................................................................................. 488

Showing IPv6 Routes..............................................................................................................................................488

Showing the Running-Conguration for an Interface.........................................................................................490

Clearing IPv6 Routes...............................................................................................................................................490

Disabling ND Entry Timeout................................................................................................................................... 490

Conguring IPv6 RA Guard...........................................................................................................................................491

Conguring IPv6 RA Guard on an Interface.........................................................................................................492

Monitoring IPv6 RA Guard......................................................................................................................................493

25 iSCSI Optimization.................................................................................................................................. 494

iSCSI Optimization Overview....................................................................................................................................... 494

Monitoring iSCSI Trac Flows...............................................................................................................................496

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 496

Information Monitored in iSCSI Trac Flows.......................................................................................................496

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 497

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 497

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................498

Enable and Disable iSCSI Optimization................................................................................................................. 498

Default iSCSI Optimization Values...............................................................................................................................499

iSCSI Optimization Prerequisites................................................................................................................................. 499

Conguring iSCSI Optimization................................................................................................................................... 499

Displaying iSCSI Optimization Information.................................................................................................................. 501

16

Contents

26 Intermediate System to Intermediate System.......................................................................................... 503

IS-IS Protocol Overview............................................................................................................................................... 503

IS-IS Addressing.............................................................................................................................................................503

Multi-Topology IS-IS...................................................................................................................................................... 504

Transition Mode....................................................................................................................................................... 504

Interface Support.................................................................................................................................................... 505

Adjacencies.............................................................................................................................................................. 505

Graceful Restart............................................................................................................................................................ 505

Timers....................................................................................................................................................................... 505

Implementation Information......................................................................................................................................... 505

Conguration Information.............................................................................................................................................506

Conguration Tasks for IS-IS..................................................................................................................................507

Conguring the Distance of a Route......................................................................................................................514

Changing the IS-Type...............................................................................................................................................515

Redistributing IPv4 Routes......................................................................................................................................517

Redistributing IPv6 Routes......................................................................................................................................518

Conguring Authentication Passwords..................................................................................................................519

Setting the Overload Bit..........................................................................................................................................519

Debugging IS-IS....................................................................................................................................................... 520

IS-IS Metric Styles..........................................................................................................................................................521

Congure Metric Values................................................................................................................................................ 521

Maximum Values in the Routing Table................................................................................................................... 521

Change the IS-IS Metric Style in One Level Only.................................................................................................521

Leaks from One Level to Another..........................................................................................................................523

Sample Congurations.................................................................................................................................................. 524

27 Link Aggregation Control Protocol (LACP)...............................................................................................526

Introduction to Dynamic LAGs and LACP.................................................................................................................. 526

Important Points to Remember............................................................................................................................. 526

LACP Modes............................................................................................................................................................ 527

Conguring LACP Commands............................................................................................................................... 527

LACP Conguration Tasks............................................................................................................................................ 528

Creating a LAG.........................................................................................................................................................528

Conguring the LAG Interfaces as Dynamic........................................................................................................ 528

Setting the LACP Long Timeout........................................................................................................................... 529

Monitoring and Debugging LACP..........................................................................................................................529

Shared LAG State Tracking.......................................................................................................................................... 530

Conguring Shared LAG State Tracking...............................................................................................................530

Important Points about Shared LAG State Tracking........................................................................................... 532

LACP Basic Conguration Example............................................................................................................................ 532

Congure a LAG on ALPHA................................................................................................................................... 532

28 Layer 2..................................................................................................................................................... 541

Manage the MAC Address Table..................................................................................................................................541

Clearing the MAC Address Table............................................................................................................................541

Contents

17

Setting the Aging Time for Dynamic Entries.........................................................................................................541

Conguring a Static MAC Address........................................................................................................................542

Displaying the MAC Address Table........................................................................................................................ 542

MAC Learning Limit.......................................................................................................................................................542

Setting the MAC Learning Limit............................................................................................................................ 543

mac learning-limit Dynamic.....................................................................................................................................543

mac learning-limit mac-address-sticky................................................................................................................. 543

mac learning-limit station-move............................................................................................................................ 544

mac learning-limit no-station-move...................................................................................................................... 544

Learning Limit Violation Actions.............................................................................................................................544

Setting Station Move Violation Actions................................................................................................................ 545

Recovering from Learning Limit and Station Move Violations...........................................................................545

Disabling MAC Address Learning on the System................................................................................................ 546

Enabling port security............................................................................................................................................. 546

NIC Teaming................................................................................................................................................................... 546

Congure Redundant Pairs...........................................................................................................................................547

Important Points about Conguring Redundant Pairs........................................................................................ 549

Far-End Failure Detection.............................................................................................................................................550

FEFD State Changes............................................................................................................................................... 551

Conguring FEFD.................................................................................................................................................... 552

Enabling FEFD on an Interface.............................................................................................................................. 552

Debugging FEFD......................................................................................................................................................553

29 Link Layer Discovery Protocol (LLDP)..................................................................................................... 555

802.1AB (LLDP) Overview........................................................................................................................................... 555

Protocol Data Units.................................................................................................................................................555

Optional TLVs.................................................................................................................................................................556

Management TLVs.................................................................................................................................................. 556

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 558

TIA Organizationally Specic TLVs........................................................................................................................558

Congure LLDP............................................................................................................................................................. 562

Related Conguration Tasks...................................................................................................................................562

Important Points to Remember............................................................................................................................. 562

LLDP Compatibility..................................................................................................................................................563

CONFIGURATION versus INTERFACE Congurations............................................................................................ 563

Enabling LLDP................................................................................................................................................................563

Disabling and Undoing LLDP..................................................................................................................................564

Enabling LLDP on Management Ports........................................................................................................................564

Disabling and Undoing LLDP on Management Ports..........................................................................................564

Advertising TLVs............................................................................................................................................................ 564

Viewing the LLDP Conguration................................................................................................................................. 566

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................566

Examples of Viewing Information Advertised by Neighbors.............................................................................. 566

Conguring LLDPDU Intervals.....................................................................................................................................568

Conguring Transmit and Receive Mode................................................................................................................... 569

Conguring the Time to Live Value............................................................................................................................. 569

18

Contents

Debugging LLDP............................................................................................................................................................570

Relevant Management Objects.................................................................................................................................... 571

30 Microsoft Network Load Balancing.......................................................................................................... 577

NLB Unicast Mode Scenario........................................................................................................................................ 577

NLB Multicast Mode Scenario..................................................................................................................................... 577

Limitations of the NLB Feature.................................................................................................................................... 578

Microsoft Clustering......................................................................................................................................................578

Enable and Disable VLAN Flooding .............................................................................................................................578

Conguring a Switch for NLB ..................................................................................................................................... 578

Enabling a Switch for Multicast NLB.................................................................................................................... 579

31 Multicast Source Discovery Protocol (MSDP)..........................................................................................580

Protocol Overview.........................................................................................................................................................580

Anycast RP......................................................................................................................................................................581

Implementation Information..........................................................................................................................................582

Congure Multicast Source Discovery Protocol........................................................................................................582

Related Conguration Tasks...................................................................................................................................582

Enable MSDP.................................................................................................................................................................586

Manage the Source-Active Cache.............................................................................................................................. 587

Viewing the Source-Active Cache.........................................................................................................................587

Limiting the Source-Active Cache.........................................................................................................................587

Clearing the Source-Active Cache........................................................................................................................588

Enabling the Rejected Source-Active Cache....................................................................................................... 588

Accept Source-Active Messages that Fail the RFP Check......................................................................................588

Specifying Source-Active Messages........................................................................................................................... 591

Limiting the Source-Active Messages from a Peer...................................................................................................592

Preventing MSDP from Caching a Local Source.......................................................................................................592

Preventing MSDP from Caching a Remote Source.................................................................................................. 593

Preventing MSDP from Advertising a Local Source..................................................................................................593

Logging Changes in Peership States...........................................................................................................................594

Terminating a Peership..................................................................................................................................................594

Clearing Peer Statistics.................................................................................................................................................595

Debugging MSDP..........................................................................................................................................................595

MSDP with Anycast RP................................................................................................................................................596

Conguring Anycast RP................................................................................................................................................597

Reducing Source-Active Message Flooding.........................................................................................................598

Specifying the RP Address Used in SA Messages.............................................................................................. 598

MSDP Sample Congurations..................................................................................................................................... 600

32 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 603

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

Spanning Tree Variations.............................................................................................................................................. 604

Implementation Information................................................................................................................................... 604

Congure Multiple Spanning Tree Protocol................................................................................................................604

Related Conguration Tasks...................................................................................................................................605

Contents

19

Enable Multiple Spanning Tree Globally...................................................................................................................... 605

Adding and Removing Interfaces.................................................................................................................................605

Creating Multiple Spanning Tree Instances................................................................................................................ 606

Inuencing MSTP Root Selection................................................................................................................................607

Interoperate with Non-Dell Bridges............................................................................................................................. 607

Changing the Region Name or Revision..................................................................................................................... 608

Modifying Global Parameters.......................................................................................................................................608

Modifying the Interface Parameters........................................................................................................................... 609

Setting STP path cost as constant..............................................................................................................................610

Conguring an EdgePort................................................................................................................................................611

Flush MAC Addresses after a Topology Change.........................................................................................................611

MSTP Sample Congurations.......................................................................................................................................612

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

CongurationSFTOS Example Running-Conguration........................................................................................612

Debugging and Verifying MSTP Congurations.........................................................................................................615

33 Multicast Features....................................................................................................................................617

Enabling IP Multicast......................................................................................................................................................617

Implementation Information...........................................................................................................................................617

Multicast Policies............................................................................................................................................................618

IPv4 Multicast Policies.............................................................................................................................................618

Understanding Multicast Traceroute (mtrace).......................................................................................................... 625

Important Points to Remember............................................................................................................................. 626

Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 626

Supported Error Codes................................................................................................................................................. 627

mtrace Scenarios...........................................................................................................................................................628

34 Object Tracking........................................................................................................................................634

Object Tracking Overview............................................................................................................................................ 634

Track Layer 2 Interfaces..........................................................................................................................................635

Track Layer 3 Interfaces..........................................................................................................................................635

Track IPv4 and IPv6 Routes................................................................................................................................... 636

Set Tracking Delays..................................................................................................................................................637

VRRP Object Tracking.............................................................................................................................................637

Object Tracking Conguration......................................................................................................................................637

Tracking a Layer 2 Interface....................................................................................................................................637

Tracking a Layer 3 Interface................................................................................................................................... 638

Track an IPv4/IPv6 Route...................................................................................................................................... 640

Displaying Tracked Objects...........................................................................................................................................644

35 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................646

Protocol Overview.........................................................................................................................................................646

Autonomous System (AS) Areas........................................................................................................................... 646

Area Types................................................................................................................................................................ 647

Networks and Neighbors........................................................................................................................................648

Router Types............................................................................................................................................................ 648

20

Contents

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