Dell PowerSwitch S5048F-ON Owner's manual

Dell EMC Networking OS Conguration Guide for

the S5048F–ON System

9.14.2.0

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 - 04

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.................................................................................................................................. 44

Multiple Users in Conguration Mode...........................................................................................................................45

Conguring alias command.............................................................................................................................................45

Viewing alias conguration....................................................................................................................................... 45

3 Getting Started............................................................................................................................................47

Console Access................................................................................................................................................................48

Serial Console.............................................................................................................................................................48

Micro USB-B Access.................................................................................................................................................49

Default Conguration...................................................................................................................................................... 50

Conguring a Host Name............................................................................................................................................... 50

Accessing the System Remotely................................................................................................................................... 50

Accessing the System Remotely............................................................................................................................. 50

Congure the Management Port IP Address.........................................................................................................50

Congure a Management Route...............................................................................................................................51

Conguring a Username and Password...................................................................................................................51

Conguring the Enable Password..................................................................................................................................52

Conguration File Management.....................................................................................................................................52

Copy Files to and from the System......................................................................................................................... 52

Mounting an NFS File System..................................................................................................................................54

Save the Running-Conguration............................................................................................................................. 55

Congure the Overload Bit for a Startup Scenario............................................................................................... 56

Viewing Files...............................................................................................................................................................56

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

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

Upgrading Dell EMC Networking OS............................................................................................................................ 59

Using HTTP for File Transfers........................................................................................................................................ 59

Contents

3

Verify Software Images Before Installation...................................................................................................................59

4 Management................................................................................................................................................ 61

Conguring Privilege Levels............................................................................................................................................ 61

Creating a Custom Privilege Level............................................................................................................................61

Removing a Command from EXEC Mode.............................................................................................................. 62

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................62

Allowing Access to CONFIGURATION Mode Commands....................................................................................62

Allowing Access to Dierent Modes........................................................................................................................62

Applying a Privilege Level to a Username............................................................................................................... 64

Applying a Privilege Level to a Terminal Line.......................................................................................................... 64

Conguring Logging........................................................................................................................................................ 64

Audit and Security Logs............................................................................................................................................ 65

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

Setting Up a Secure Connection to a Syslog Server.............................................................................................66

Log Messages in the Internal Buer..............................................................................................................................68

Conguration Task List for System Log Management.......................................................................................... 68

Disabling System Logging............................................................................................................................................... 68

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

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

Track Login Activity......................................................................................................................................................... 69

Restrictions for Tracking Login Activity.................................................................................................................. 69

Conguring Login Activity Tracking.........................................................................................................................69

Display Login Statistics..............................................................................................................................................70

Limit Concurrent Login Sessions.....................................................................................................................................71

Restrictions for Limiting the Number of Concurrent Sessions............................................................................. 71

Conguring Concurrent Session Limit......................................................................................................................71

Enabling the System to Clear Existing Sessions.................................................................................................... 72

Enabling Secured CLI Mode............................................................................................................................................73

Changing System Logging Settings...............................................................................................................................73

Display the Logging Buer and the Logging Conguration........................................................................................ 74

Conguring a UNIX Logging Facility Level....................................................................................................................76

Synchronizing Log Messages......................................................................................................................................... 77

Enabling Timestamp on Syslog Messages.................................................................................................................... 78

File Transfer Services.......................................................................................................................................................78

Conguration Task List for File Transfer Services..................................................................................................78

Enabling the FTP Server........................................................................................................................................... 78

Conguring FTP Server Parameters........................................................................................................................79

Conguring FTP Client Parameters......................................................................................................................... 79

Terminal Lines...................................................................................................................................................................80

Denying and Permitting Access to a Terminal Line................................................................................................80

Conguring Login Authentication for Terminal Lines..............................................................................................81

Setting Timeout for EXEC Privilege Mode................................................................................................................... 82

Using Telnet to get to Another Network Device..........................................................................................................82

Lock CONFIGURATION Mode....................................................................................................................................... 83

Viewing the Conguration Lock Status...................................................................................................................83

4

Contents

Reloading the system...................................................................................................................................................... 84

Restoring the Factory Default Settings........................................................................................................................ 85

Important Points to Remember................................................................................................................................85

Restoring Factory Default Environment Variables................................................................................................. 85

5 802.1X..........................................................................................................................................................87

Port-Authentication Process..........................................................................................................................................89

EAP over RADIUS......................................................................................................................................................89

Conguring 802.1X...........................................................................................................................................................90

Related Conguration Tasks..................................................................................................................................... 90

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

Enabling 802.1X................................................................................................................................................................. 91

Conguring dot1x Prole ................................................................................................................................................92

Conguring the Static MAB and MAB Prole .............................................................................................................93

Conguring Critical VLAN ..............................................................................................................................................93

Conguring MAC addresses for a do1x Prole.............................................................................................................94

Conguring Request Identity Re-Transmissions...........................................................................................................95

Conguring a Quiet Period after a Failed Authentication..................................................................................... 95

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 96

Re-Authenticating a Port................................................................................................................................................ 97

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

Conguring Dynamic VLAN Assignment with Port Authentication.......................................................................... 99

Guest and Authentication-Fail VLANs.........................................................................................................................100

Conguring a Guest VLAN......................................................................................................................................100

Conguring an Authentication-Fail VLAN............................................................................................................. 100

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).................................. 102

Optimizing CAM Utilization During the Attachment of ACLs to VLANs................................................................. 102

Guidelines for Conguring ACL VLAN Groups........................................................................................................... 103

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...............................................103

Conguring ACL VLAN Groups.............................................................................................................................. 103

Conguring FP Blocks for VLAN Parameters.......................................................................................................104

Viewing CAM Usage...................................................................................................................................................... 105

Allocating FP Blocks for VLAN Processes...................................................................................................................107

ACL Optimization to Increase Number of Supported IPv4 ACLs.............................................................................108

Restrictions for ACL Optimization..........................................................................................................................108

Optimizing ACL for More Number of IPv4 ACL Rules.........................................................................................108

7 Access Control Lists (ACLs)........................................................................................................................110

IP Access Control Lists (ACLs)...................................................................................................................................... 111

CAM Usage.................................................................................................................................................................111

Implementing ACLs on Dell EMC Networking OS.................................................................................................113

Congure ACL Range Proles....................................................................................................................................... 114

Important Points to Remember.....................................................................................................................................115

Conguration Task List for Route Maps.................................................................................................................115

Conguring Match Routes.......................................................................................................................................118

Contents

5

Conguring Set Conditions......................................................................................................................................119

Congure a Route Map for Route Redistribution.................................................................................................120

Congure a Route Map for Route Tagging........................................................................................................... 120

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

IP Fragment Handling..................................................................................................................................................... 121

IP Fragments ACL Examples....................................................................................................................................121

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

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

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

Congure an Extended IP ACL..................................................................................................................................... 124

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

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

Congure Layer 2 and Layer 3 ACLs............................................................................................................................129

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

Applying an IP ACL.........................................................................................................................................................130

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

Congure Ingress ACLs.................................................................................................................................................. 131

Congure Egress ACLs...................................................................................................................................................131

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

Conguring UDF ACL.....................................................................................................................................................133

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

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

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

ACL Resequencing......................................................................................................................................................... 140

Resequencing an ACL or Prex List........................................................................................................................141

Route Maps.....................................................................................................................................................................142

Implementation Information.................................................................................................................................... 142

8 Bidirectional Forwarding Detection (BFD).................................................................................................. 143

How BFD Works............................................................................................................................................................. 143

BFD Packet Format..................................................................................................................................................144

BFD Sessions............................................................................................................................................................ 145

BFD Three-Way Handshake.................................................................................................................................... 146

Session State Changes............................................................................................................................................148

Important Points to Remember.................................................................................................................................... 148

Congure BFD................................................................................................................................................................ 149

Congure BFD for Physical Ports...........................................................................................................................149

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

Congure BFD for OSPF.........................................................................................................................................153

Congure BFD for OSPFv3.....................................................................................................................................158

Congure BFD for IS-IS............................................................................................................................................161

Congure BFD for BGP........................................................................................................................................... 164

Congure BFD for VRRP.........................................................................................................................................170

Conguring Protocol Liveness................................................................................................................................ 173

Troubleshooting BFD................................................................................................................................................ 173

6

Contents

9 Border Gateway Protocol (BGP)................................................................................................................ 175

BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 175

BGP Autonomous Systems..................................................................................................................................... 175

AS4 Number Representation...................................................................................................................................177

Four-Byte AS Numbers............................................................................................................................................179

BGP router ID............................................................................................................................................................179

Sessions and Peers...................................................................................................................................................179

Establish a Session...................................................................................................................................................180

BGP Attributes for selecting Best Path.................................................................................................................180

Multiprotocol BGP....................................................................................................................................................185

BGP global and address family conguration........................................................................................................186

Implement BGP with Dell EMC Networking OS...................................................................................................188

Conguration Information........................................................................................................................................ 191

Basic BGP conguration tasks...................................................................................................................................... 191

Prerequisite for conguring a BGP network.......................................................................................................... 191

Restrictions............................................................................................................................................................... 192

Enabling BGP............................................................................................................................................................ 192

Enabling four-byte autonomous system numbers................................................................................................194

Changing a BGP router ID.......................................................................................................................................195

Conguring AS4 Number Representations........................................................................................................... 195

Conguring a BGP peer...........................................................................................................................................197

Example-Conguring BGP routing between peers..............................................................................................198

BGP peer group........................................................................................................................................................199

Advanced BGP conguration tasks.............................................................................................................................205

Route-refresh and Soft-reconguration............................................................................................................... 206

Aggregating Routes.................................................................................................................................................208

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

Conguring BGP Fast Fall-Over............................................................................................................................. 217

Conguring Passive Peering................................................................................................................................... 218

Enabling Graceful Restart........................................................................................................................................219

Redistributing Routes..............................................................................................................................................220

Enabling Additional Paths........................................................................................................................................ 221

Conguring IP Community Lists............................................................................................................................ 222

Conguring an IP Extended Community List....................................................................................................... 223

Congure BGP attributes....................................................................................................................................... 224

Enabling Multipath...................................................................................................................................................228

Route Reectors......................................................................................................................................................229

Enabling Route Flap Dampening............................................................................................................................ 230

Changing BGP keepalive and hold timers.............................................................................................................232

Setting the extended timer.....................................................................................................................................233

Enabling or disabling BGP neighbors.....................................................................................................................234

Route Map Continue............................................................................................................................................... 235

Conguring BGP Confederations.......................................................................................................................... 235

Conguring a BGP VRF address family................................................................................................................ 236

Maintaining Existing AS Numbers During an AS Migration.................................................................................237

Contents

7

Allowing an AS Number to Appear in its Own AS Path...................................................................................... 238

Enabling MBGP Congurations............................................................................................................................. 239

MBGP support for IPv6..........................................................................................................................................239

Conguring IPv6 MBGP between peers.............................................................................................................. 240

Example-Conguring IPv4 and IPv6 neighbors................................................................................................... 240

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 243

BGP Regular Expression Optimization.................................................................................................................. 244

Debugging BGP....................................................................................................................................................... 245

10 Content Addressable Memory (CAM).......................................................................................................247

CAM Allocation...............................................................................................................................................................247

Test CAM Usage............................................................................................................................................................249

View CAM-ACL Settings.............................................................................................................................................. 249

View CAM Usage...........................................................................................................................................................250

CAM Optimization.......................................................................................................................................................... 251

Troubleshoot CAM Proling...........................................................................................................................................251

CAM Prole Mismatches.........................................................................................................................................251

QoS CAM Region Limitation................................................................................................................................... 251

Syslog Error When the Table is Full....................................................................................................................... 252

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................252

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................252

Unied Forwarding Table (UFT) Modes......................................................................................................................252

Conguring UFT Modes......................................................................................................................................... 253

11 Control Plane Policing (CoPP).................................................................................................................. 254

Congure Control Plane Policing................................................................................................................................. 255

Conguring CoPP for Protocols............................................................................................................................ 256

Conguring CoPP for CPU Queues...................................................................................................................... 258

Protocol to CPU Queue Mapping..........................................................................................................................259

Conguring Protocol to CPU Queue Mapping.....................................................................................................259

Displaying CoPP Conguration .............................................................................................................................260

12 Data Center Bridging (DCB).....................................................................................................................262

Ethernet Enhancements in Data Center Bridging..................................................................................................... 262

Priority-Based Flow Control................................................................................................................................... 263

Enhanced Transmission Selection..........................................................................................................................264

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................265

Data Center Bridging in a Trac Flow.................................................................................................................. 266

Buer Organization................................................................................................................................................. 266

Enabling Data Center Bridging.....................................................................................................................................269

DCB Maps and its Attributes..................................................................................................................................270

Data Center Bridging: Default Conguration..............................................................................................................270

Conguring Priority-Based Flow Control..................................................................................................................... 271

Conguring Lossless Queues..................................................................................................................................272

Conguring PFC in a DCB Map....................................................................................................................................273

PFC Conguration Notes........................................................................................................................................273

8

Contents

PFC Prerequisites and Restrictions....................................................................................................................... 274

Applying a DCB Map on a Port.................................................................................................................................... 275

Conguring PFC without a DCB Map.........................................................................................................................275

Conguring Lossless QueuesExample:..................................................................................................................276

Priority-Based Flow Control Using Dynamic Buer Method.................................................................................... 277

Pause and Resume of Trac.................................................................................................................................. 277

Buer Sizes for Lossless or PFC Packets.............................................................................................................277

Shared headroom for lossless or PFC packets...........................................................................................................278

Example Scenario.....................................................................................................................................................279

Conguring Shared Head Room Buer................................................................................................................ 280

Viewing Shared Head Room Usage.......................................................................................................................280

Monitoring Buer Statistics for Tracking Purposes............................................................................................. 281

Behavior of Tagged Packets..........................................................................................................................................281

Conguration Example for DSCP and PFC Priorities.................................................................................................281

SNMP Support for PFC and Buer Statistics Tracking............................................................................................282

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................283

PFC and ETS Conguration Examples........................................................................................................................284

Using PFC to Manage Converged Ethernet Trac...................................................................................................284

Operations on Untagged Packets................................................................................................................................284

Generation of PFC for a Priority for Untagged Packets...........................................................................................285

Congure Enhanced Transmission Selection..............................................................................................................285

Creating an ETS Priority Group............................................................................................................................. 285

ETS Operation with DCBx......................................................................................................................................286

Conguring ETS in a DCB Map..............................................................................................................................287

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 288

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

Applying DCB Policies in a Switch Stack.................................................................................................................... 289

Congure a DCBx Operation........................................................................................................................................289

DCBx Operation....................................................................................................................................................... 289

DCBx Port Roles......................................................................................................................................................290

DCB Conguration Exchange................................................................................................................................. 291

Conguration Source Election................................................................................................................................ 291

Propagation of DCB Information............................................................................................................................292

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 292

DCBx Example..........................................................................................................................................................293

DCBx Prerequisites and Restrictions.....................................................................................................................293

Conguring DCBx....................................................................................................................................................293

Verifying the DCB Conguration..................................................................................................................................297

QoS dot1p Trac Classication and Queue Assignment..........................................................................................305

Conguring the Dynamic Buer Method................................................................................................................... 305

Sample DCB Conguration...........................................................................................................................................306

PFC and ETS Conguration Command Examples...............................................................................................308

13 Dynamic Host Conguration Protocol (DHCP).........................................................................................309

DHCP Packet Format and Options............................................................................................................................. 309

Assign an IP Address using DHCP................................................................................................................................ 311

Contents

9

Implementation Information........................................................................................................................................... 311

Congure the System to be a DHCP Server.............................................................................................................. 312

Conguring the Server for Automatic Address Allocation...................................................................................312

Specifying a Default Gateway.................................................................................................................................314

Congure a Method of Hostname Resolution...................................................................................................... 314

Using DNS for Address Resolution.........................................................................................................................314

Using NetBIOS WINS for Address Resolution...................................................................................................... 314

Creating Manual Binding Entries............................................................................................................................ 315

Debugging the DHCP Server..................................................................................................................................315

Using DHCP Clear Commands............................................................................................................................... 315

Congure the System to be a DHCP Client................................................................................................................316

Conguring the DHCP Client System....................................................................................................................316

DHCP Client on a Management Interface.............................................................................................................318

DHCP Client Operation with Other Features........................................................................................................318

Conguring DHCP relay source interface....................................................................................................................319

Global DHCP relay source IPv4 or IPv6 conguration ........................................................................................319

Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................320

Congure Secure DHCP................................................................................................................................................321

Option 82...................................................................................................................................................................321

DHCPv6 relay agent options..................................................................................................................................322

DHCP Snooping.......................................................................................................................................................322

Drop DHCP Packets on Snooped VLANs Only....................................................................................................327

Dynamic ARP Inspection.........................................................................................................................................327

Conguring Dynamic ARP Inspection................................................................................................................... 328

Source Address Validation............................................................................................................................................ 329

Enabling IP Source Address Validation..................................................................................................................329

DHCP MAC Source Address Validation................................................................................................................ 330

Enabling IP+MAC Source Address Validation.......................................................................................................330

Viewing the Number of SAV Dropped Packets.................................................................................................... 331

Clearing the Number of SAV Dropped Packets....................................................................................................331

14 Equal Cost Multi-Path (ECMP)................................................................................................................ 332

ECMP for Flow-Based Anity..................................................................................................................................... 332

Conguring the Hash Algorithm............................................................................................................................ 332

Enabling Deterministic ECMP Next Hop.............................................................................................................. 332

Conguring the Hash Algorithm Seed.................................................................................................................. 333

Link Bundle Monitoring................................................................................................................................................. 333

Managing ECMP Group Paths...............................................................................................................................334

Creating an ECMP Group Bundle..........................................................................................................................334

Modifying the ECMP Group Threshold.................................................................................................................334

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................335

Support for ECMP in host table............................................................................................................................ 336

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 336

15 FIP Snooping............................................................................................................................................ 337

Fibre Channel over Ethernet.........................................................................................................................................337

10

Contents

Ensure Robustness in a Converged Ethernet Network............................................................................................ 337

FIP Snooping on Ethernet Bridges.............................................................................................................................. 339

Using FIP Snooping........................................................................................................................................................ 341

FIP Snooping Prerequisites......................................................................................................................................341

Important Points to Remember.............................................................................................................................. 341

Enabling the FCoE Transit Feature........................................................................................................................343

Enable FIP Snooping on VLANs.............................................................................................................................343

Congure the FC-MAP Value................................................................................................................................ 343

Congure a Port for a Bridge-to-Bridge Link....................................................................................................... 343

Congure a Port for a Bridge-to-FCF Link...........................................................................................................344

Impact on Other Software Features..................................................................................................................... 344

FIP Snooping Restrictions...................................................................................................................................... 344

Conguring FIP Snooping.......................................................................................................................................345

Displaying FIP Snooping Information...........................................................................................................................345

FCoE Transit Conguration Example.......................................................................................................................... 350

16 Flex Hash and Optimized Boot-Up............................................................................................................352

Flex Hash Capability Overview.....................................................................................................................................352

Conguring the Flex Hash Mechanism.......................................................................................................................352

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 353

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 354

17 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 355

Protocol Overview.........................................................................................................................................................355

Ring Status............................................................................................................................................................... 356

Multiple FRRP Rings............................................................................................................................................... 356

Important FRRP Points........................................................................................................................................... 357

Important FRRP Concepts.....................................................................................................................................358

Implementing FRRP.......................................................................................................................................................359

FRRP Conguration...................................................................................................................................................... 359

Creating the FRRP Group...................................................................................................................................... 359

Conguring the Control VLAN...............................................................................................................................359

Conguring and Adding the Member VLANs....................................................................................................... 361

Setting the FRRP Timers........................................................................................................................................362

Clearing the FRRP Counters..................................................................................................................................362

Viewing the FRRP Conguration...........................................................................................................................362

Viewing the FRRP Information...............................................................................................................................362

Troubleshooting FRRP.................................................................................................................................................. 363

Conguration Checks..............................................................................................................................................363

Sample Conguration and Topology............................................................................................................................363

FRRP Support on VLT...................................................................................................................................................364

Example Scenario.................................................................................................................................................... 365

Important Points to Remember............................................................................................................................. 366

18 GARP VLAN Registration Protocol (GVRP).............................................................................................. 367

Important Points to Remember....................................................................................................................................367

Contents

11

Congure GVRP............................................................................................................................................................ 368

Related Conguration Tasks...................................................................................................................................368

Enabling GVRP Globally................................................................................................................................................ 369

Enabling GVRP on a Layer 2 Interface........................................................................................................................369

Congure GVRP Registration...................................................................................................................................... 369

Congure a GARP Timer...............................................................................................................................................370

19 Internet Group Management Protocol (IGMP).......................................................................................... 371

IGMP Implementation Information............................................................................................................................... 371

IGMP Protocol Overview...............................................................................................................................................371

IGMP Version 2.........................................................................................................................................................371

IGMP Version 3........................................................................................................................................................ 373

Congure IGMP............................................................................................................................................................. 376

Related Conguration Tasks................................................................................................................................... 376

Viewing IGMP Enabled Interfaces................................................................................................................................377

Selecting an IGMP Version........................................................................................................................................... 377

Viewing IGMP Groups................................................................................................................................................... 378

Adjusting Timers.............................................................................................................................................................378

Adjusting Query and Response Timers..................................................................................................................378

Enabling IGMP Immediate-Leave.................................................................................................................................379

IGMP Snooping.............................................................................................................................................................. 379

IGMP Snooping Implementation Information....................................................................................................... 379

Conguring IGMP Snooping...................................................................................................................................380

Removing a Group-Port Association.....................................................................................................................380

Disabling Multicast Flooding....................................................................................................................................381

Specifying a Port as Connected to a Multicast Router....................................................................................... 381

Conguring the Switch as Querier......................................................................................................................... 381

Fast Convergence after MSTP Topology Changes................................................................................................... 382

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................382

Protocol Separation................................................................................................................................................. 383

Enabling and Disabling Management Egress Interface Selection...................................................................... 384

Handling of Management Route Conguration................................................................................................... 384

Handling of Switch-Initiated Trac....................................................................................................................... 385

Handling of Switch-Destined Trac......................................................................................................................386

Handling of Transit Trac (Trac Separation).................................................................................................... 386

Mapping of Management Applications and Trac Type.....................................................................................386

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 387

Behavior of Various Applications for Switch-Destined Trac ...........................................................................388

Interworking of EIS With Various Applications.....................................................................................................389

Designating a Multicast Router Interface...................................................................................................................390

20 Interfaces.................................................................................................................................................391

Basic Interface Conguration........................................................................................................................................391

Advanced Interface Conguration................................................................................................................................391

Interface Types...............................................................................................................................................................392

View Basic Interface Information.................................................................................................................................392

12

Contents

Resetting an Interface to its Factory Default State...................................................................................................394

Enabling a Physical Interface........................................................................................................................................395

Physical Interfaces.........................................................................................................................................................395

Conguration Task List for Physical Interfaces....................................................................................................395

Overview of Layer Modes...................................................................................................................................... 396

Conguring Layer 2 (Data Link) Mode..................................................................................................................396

Conguring Layer 2 (Interface) Mode.................................................................................................................. 396

Conguring Layer 3 (Network) Mode................................................................................................................... 397

Conguring Layer 3 (Interface) Mode...................................................................................................................397

Egress Interface Selection (EIS)..................................................................................................................................398

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

Conguring EIS........................................................................................................................................................ 398

Management Interfaces................................................................................................................................................399

Conguring Management Interfaces.................................................................................................................... 399

Conguring a Management Interface on an Ethernet Port............................................................................... 399

VLAN Interfaces............................................................................................................................................................ 400

Loopback Interfaces.......................................................................................................................................................401

Null Interfaces.................................................................................................................................................................401

Port Channel Interfaces.................................................................................................................................................401

Port Channel Denition and Standards.................................................................................................................402

Port Channel Benets.............................................................................................................................................402

Port Channel Implementation.................................................................................................................................402

Interfaces in Port Channels.................................................................................................................................... 403

Conguration Tasks for Port Channel Interfaces.................................................................................................403

Creating a Port Channel..........................................................................................................................................403

Adding a Physical Interface to a Port Channel.....................................................................................................404

Reassigning an Interface to a New Port Channel................................................................................................405

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 406

Adding or Removing a Port Channel from a VLAN............................................................................................. 406

Assigning an IP Address to a Port Channel.......................................................................................................... 407

Deleting or Disabling a Port Channel.....................................................................................................................408

Load Balancing Through Port Channels................................................................................................................408

Load-Balancing Method..........................................................................................................................................408

Changing the Hash Algorithm................................................................................................................................409

Bulk Conguration..........................................................................................................................................................410

Interface Range........................................................................................................................................................ 410

Bulk Conguration Examples.................................................................................................................................. 410

Dening Interface Range Macros.................................................................................................................................412

Dene the Interface Range..................................................................................................................................... 412

Choosing an Interface-Range Macro..................................................................................................................... 412

Monitoring and Maintaining Interfaces........................................................................................................................ 412

Maintenance Using TDR..........................................................................................................................................413

Non Dell-Qualied Transceivers.................................................................................................................................... 414

Splitting 100G Ports....................................................................................................................................................... 415

Link Dampening.............................................................................................................................................................. 415

Contents

13

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

Conguration Example of Link Dampening........................................................................................................... 416

Enabling Link Dampening.........................................................................................................................................418

Link Bundle Monitoring.................................................................................................................................................. 419

Using Ethernet Pause Frames for Flow Control........................................................................................................ 420

Enabling Pause Frames........................................................................................................................................... 420

Congure the MTU Size on an Interface.....................................................................................................................421

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................422

Port-Pipes.......................................................................................................................................................................422

CR4 Auto-Negotiation...................................................................................................................................................422

Setting the Speed of Ethernet Interfaces.................................................................................................................. 423

Speed Setting on 25G Interfaces................................................................................................................................ 424

FEC Conguration......................................................................................................................................................... 425

View Advanced Interface Information......................................................................................................................... 427

Conguring the Interface Sampling Size.............................................................................................................. 428

Conguring the Trac Sampling Size Globally...........................................................................................................429

Dynamic Counters......................................................................................................................................................... 430

Clearing Interface Counters.................................................................................................................................... 431

Enhanced Validation of Interface Ranges....................................................................................................................431

Compressing Conguration Files.................................................................................................................................. 431

OUI on 25G and 50G Interfaces.................................................................................................................................. 434

Conguring OUI on 25G and 50G Interfaces.......................................................................................................434

21 IPv4 Routing............................................................................................................................................ 435

IP Addresses...................................................................................................................................................................436

Implementation Information....................................................................................................................................436

Conguration Tasks for IP Addresses..........................................................................................................................436

Assigning IP Addresses to an Interface.......................................................................................................................436

Conguring Static Routes.............................................................................................................................................437

Congure Static Routes for the Management Interface.......................................................................................... 438

Using the Congured Source IP Address in ICMP Messages..................................................................................439

Conguring the ICMP Source Interface............................................................................................................... 439

Conguring the Duration to Establish a TCP Connection........................................................................................ 439

Enabling Directed Broadcast........................................................................................................................................ 440

Resolution of Host Names............................................................................................................................................440

Enabling Dynamic Resolution of Host Names............................................................................................................440

Specifying the Local System Domain and a List of Domains.................................................................................... 441

Conguring DNS with Traceroute................................................................................................................................ 441

ARP..................................................................................................................................................................................442

Conguration Tasks for ARP........................................................................................................................................ 442

Conguring Static ARP Entries....................................................................................................................................442

Enabling Proxy ARP.......................................................................................................................................................443

Clearing ARP Cache...................................................................................................................................................... 443

ARP Learning via Gratuitous ARP................................................................................................................................444

Enabling ARP Learning via Gratuitous ARP................................................................................................................444

ARP Learning via ARP Request................................................................................................................................... 444

14

Contents

Conguring ARP Retries...............................................................................................................................................445

ICMP............................................................................................................................................................................... 445

Conguration Tasks for ICMP......................................................................................................................................446

Enabling ICMP Unreachable Messages...................................................................................................................... 446

ICMP Redirects..............................................................................................................................................................446

UDP Helper.....................................................................................................................................................................447

Congure UDP Helper.............................................................................................................................................447

Important Points to Remember............................................................................................................................. 448

Enabling UDP Helper.....................................................................................................................................................448

Conguring a Broadcast Address................................................................................................................................ 448

Congurations Using UDP Helper............................................................................................................................... 449

UDP Helper with Broadcast-All Addresses.................................................................................................................449

UDP Helper with Subnet Broadcast Addresses.........................................................................................................450

UDP Helper with Congured Broadcast Addresses..................................................................................................450

UDP Helper with No Congured Broadcast Addresses.............................................................................................451

Troubleshooting UDP Helper.........................................................................................................................................451

22 IPv6 Routing............................................................................................................................................452

Protocol Overview......................................................................................................................................................... 452

Extended Address Space........................................................................................................................................452

Path MTU discovery................................................................................................................................................452

Stateless Autoconguration................................................................................................................................... 453

IPv6 Headers............................................................................................................................................................454

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support................................................................... 454

IPv6 Header Fields.................................................................................................................................................. 455

Extension Header Fields......................................................................................................................................... 456

Addressing................................................................................................................................................................ 457

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 458

ICMPv6...........................................................................................................................................................................458

Path MTU discovery..................................................................................................................................................... 459

IPv6 Neighbor Discovery..............................................................................................................................................459

IPv6 Neighbor Discovery of MTU Packets.......................................................................................................... 460

Conguring the IPv6 Recursive DNS Server....................................................................................................... 460

Debugging IPv6 RDNSS Information Sent to the Host ......................................................................................461

Displaying IPv6 RDNSS Information.......................................................................................................................461

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 462

Conguration Tasks for IPv6........................................................................................................................................462

Adjusting Your CAM-Prole....................................................................................................................................462

Assigning an IPv6 Address to an Interface...........................................................................................................463

Assigning a Static IPv6 Route................................................................................................................................464

Conguring Telnet with IPv6..................................................................................................................................464

SNMP over IPv6......................................................................................................................................................465

Displaying IPv6 Information....................................................................................................................................465

Displaying an IPv6 Interface Information.............................................................................................................. 465

Showing IPv6 Routes..............................................................................................................................................466

Showing the Running-Conguration for an Interface......................................................................................... 467

Contents

15

Clearing IPv6 Routes...............................................................................................................................................468

Conguring IPv6 RA Guard.......................................................................................................................................... 468

23 iSCSI Optimization................................................................................................................................... 471

iSCSI Optimization Overview........................................................................................................................................471

Monitoring iSCSI Trac Flows............................................................................................................................... 473

Application of Quality of Service to iSCSI Trac Flows......................................................................................473

Information Monitored in iSCSI Trac Flows....................................................................................................... 473

Detection and Auto-Conguration for Dell EqualLogic Arrays............................................................................474

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 474

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................475

Enable and Disable iSCSI Optimization................................................................................................................. 475

Default iSCSI Optimization Values............................................................................................................................... 476

iSCSI Optimization Prerequisites..................................................................................................................................476

Conguring iSCSI Optimization....................................................................................................................................476

Displaying iSCSI Optimization Information..................................................................................................................478

24 Intermediate System to Intermediate System.......................................................................................... 480

IS-IS Protocol Overview............................................................................................................................................... 480

IS-IS Addressing.............................................................................................................................................................480

Multi-Topology IS-IS....................................................................................................................................................... 481

Transition Mode........................................................................................................................................................ 481

Interface Support.....................................................................................................................................................482

Adjacencies...............................................................................................................................................................482

Graceful Restart.............................................................................................................................................................482

Timers........................................................................................................................................................................482

Implementation Information..........................................................................................................................................482

Conguration Information.............................................................................................................................................483

Conguration Tasks for IS-IS..................................................................................................................................484

Conguring the Distance of a Route......................................................................................................................491

Changing the IS-Type.............................................................................................................................................. 492

Redistributing IPv4 Routes.....................................................................................................................................494

Redistributing IPv6 Routes.....................................................................................................................................495

Conguring Authentication Passwords.................................................................................................................496

Setting the Overload Bit......................................................................................................................................... 496

Debugging IS-IS....................................................................................................................................................... 497

IS-IS Metric Styles.........................................................................................................................................................498

Congure Metric Values............................................................................................................................................... 498

Maximum Values in the Routing Table.................................................................................................................. 499

Change the IS-IS Metric Style in One Level Only................................................................................................499

Leaks from One Level to Another..........................................................................................................................500

Sample Congurations...................................................................................................................................................501

25 Link Aggregation Control Protocol (LACP).............................................................................................. 504

Introduction to Dynamic LAGs and LACP.................................................................................................................. 504

Important Points to Remember............................................................................................................................. 504

16

Contents

LACP Modes............................................................................................................................................................505

Conguring LACP Commands...............................................................................................................................505

LACP Conguration Tasks............................................................................................................................................506

Creating a LAG........................................................................................................................................................ 506

Conguring the LAG Interfaces as Dynamic........................................................................................................506

Setting the LACP Long Timeout............................................................................................................................507

Monitoring and Debugging LACP.......................................................................................................................... 507

Shared LAG State Tracking.......................................................................................................................................... 508

Conguring Shared LAG State Tracking...............................................................................................................508

Important Points about Shared LAG State Tracking............................................................................................510

LACP Basic Conguration Example............................................................................................................................. 510

Congure a LAG on ALPHA....................................................................................................................................510

26 Layer 2..................................................................................................................................................... 519

Manage the MAC Address Table.................................................................................................................................. 519

Clearing the MAC Address Table............................................................................................................................519

Setting the Aging Time for Dynamic Entries.........................................................................................................519

Conguring a Static MAC Address........................................................................................................................520

Displaying the MAC Address Table........................................................................................................................ 520

MAC Learning Limit.......................................................................................................................................................520

Setting the MAC Learning Limit............................................................................................................................. 521

mac learning-limit Dynamic..................................................................................................................................... 521

mac learning-limit mac-address-sticky.................................................................................................................. 521

mac learning-limit station-move............................................................................................................................ 522

mac learning-limit no-station-move.......................................................................................................................522

Learning Limit Violation Actions.............................................................................................................................522

Setting Station Move Violation Actions................................................................................................................ 523

Recovering from Learning Limit and Station Move Violations........................................................................... 523

Disabling MAC Address Learning on the System.......................................................................................................524

Enabling port security................................................................................................................................................... 524

NIC Teaming................................................................................................................................................................... 524

Congure Redundant Pairs...........................................................................................................................................525

Important Points about Conguring Redundant Pairs.........................................................................................527

Far-End Failure Detection.............................................................................................................................................528

FEFD State Changes...............................................................................................................................................529

Conguring FEFD.................................................................................................................................................... 530

Enabling FEFD on an Interface.............................................................................................................................. 530

Debugging FEFD.......................................................................................................................................................531

27 Link Layer Discovery Protocol (LLDP)......................................................................................................533

802.1AB (LLDP) Overview............................................................................................................................................533

Protocol Data Units................................................................................................................................................. 533

Optional TLVs................................................................................................................................................................. 534

Management TLVs.................................................................................................................................................. 534

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 536

TIA Organizationally Specic TLVs........................................................................................................................ 536

Contents

17

Congure LLDP............................................................................................................................................................. 540

Related Conguration Tasks...................................................................................................................................540

Important Points to Remember............................................................................................................................. 540

LLDP Compatibility..................................................................................................................................................540

CONFIGURATION versus INTERFACE Congurations............................................................................................ 540

Enabling LLDP.................................................................................................................................................................541

Disabling and Undoing LLDP...................................................................................................................................541

Enabling LLDP on Management Ports.........................................................................................................................541

Disabling and Undoing LLDP on Management Ports.......................................................................................... 542

Advertising TLVs............................................................................................................................................................ 542

Viewing the LLDP Conguration................................................................................................................................. 543

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................544

Examples of Viewing Information Advertised by Neighbors...............................................................................544

Conguring LLDPDU Intervals.....................................................................................................................................545

Conguring Transmit and Receive Mode................................................................................................................... 545

Conguring the Time to Live Value............................................................................................................................. 546

Debugging LLDP............................................................................................................................................................547

Relevant Management Objects................................................................................................................................... 548

28 Microsoft Network Load Balancing..........................................................................................................553

NLB Unicast Mode Scenario........................................................................................................................................553

NLB Multicast Mode Scenario.....................................................................................................................................553

Limitations of the NLB Feature....................................................................................................................................554

Microsoft Clustering......................................................................................................................................................554

Enable and Disable VLAN Flooding ............................................................................................................................ 554

Conguring a Switch for NLB .....................................................................................................................................554

Enabling a Switch for Multicast NLB.................................................................................................................... 555

29 Multicast Source Discovery Protocol (MSDP).........................................................................................556

Protocol Overview.........................................................................................................................................................556

Anycast RP.....................................................................................................................................................................557

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

Congure Multicast Source Discovery Protocol........................................................................................................558

Related Conguration Tasks...................................................................................................................................558

Enable MSDP................................................................................................................................................................. 562

Manage the Source-Active Cache..............................................................................................................................563

Viewing the Source-Active Cache.........................................................................................................................563

Limiting the Source-Active Cache.........................................................................................................................563

Clearing the Source-Active Cache........................................................................................................................564

Enabling the Rejected Source-Active Cache....................................................................................................... 564

Accept Source-Active Messages that Fail the RFP Check......................................................................................564

Specifying Source-Active Messages...........................................................................................................................567

Limiting the Source-Active Messages from a Peer...................................................................................................568

Preventing MSDP from Caching a Local Source.......................................................................................................568

Preventing MSDP from Caching a Remote Source.................................................................................................. 569

Preventing MSDP from Advertising a Local Source................................................................................................. 569

18

Contents

Logging Changes in Peership States...........................................................................................................................570

Terminating a Peership..................................................................................................................................................570

Clearing Peer Statistics..................................................................................................................................................571

Debugging MSDP...........................................................................................................................................................571

MSDP with Anycast RP................................................................................................................................................572

Conguring Anycast RP................................................................................................................................................573

Reducing Source-Active Message Flooding......................................................................................................... 574

Specifying the RP Address Used in SA Messages...............................................................................................574

MSDP Sample Congurations......................................................................................................................................576

30 Multicast Listener Discovery Protocol......................................................................................................579

MLD Version 1................................................................................................................................................................ 579

MLD Querier Router...................................................................................................................................................... 579

Joining a Multicast Group.............................................................................................................................................580

Leaving a Multicast Group............................................................................................................................................580

MLD version 2................................................................................................................................................................580

MLD timers.....................................................................................................................................................................582

Reducing Host Response Burstiness.................................................................................................................... 583

Conguring MLD Version..............................................................................................................................................583

Clearing MLD groups.....................................................................................................................................................583

Debugging MLD.............................................................................................................................................................583

Explicit Tracking............................................................................................................................................................. 583

Reducing Leave Latency...............................................................................................................................................584

Displaying MLD groups table........................................................................................................................................584

Displaying MLD Interfaces............................................................................................................................................584

MLD Snooping............................................................................................................................................................... 584

Enable MLD Snooping............................................................................................................................................ 585

Disable MLD Snooping............................................................................................................................................585

Congure the switch as a querier..........................................................................................................................585

Specify port as connected to multicast router.................................................................................................... 585

Enable Snooping Explicit Tracking.........................................................................................................................586

Display the MLD Snooping Table........................................................................................................................... 586

31 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 587

Protocol Overview......................................................................................................................................................... 587

Spanning Tree Variations.............................................................................................................................................. 588

Implementation Information................................................................................................................................... 588

Congure Multiple Spanning Tree Protocol................................................................................................................588

Related Conguration Tasks...................................................................................................................................589

Enable Multiple Spanning Tree Globally...................................................................................................................... 589

Adding and Removing Interfaces.................................................................................................................................589

Creating Multiple Spanning Tree Instances................................................................................................................590

Inuencing MSTP Root Selection................................................................................................................................ 591

Interoperate with Non-Dell Bridges.............................................................................................................................592

Changing the Region Name or Revision..................................................................................................................... 592

Modifying Global Parameters....................................................................................................................................... 592

Contents

19

Modifying the Interface Parameters........................................................................................................................... 594

Setting STP path cost as constant.............................................................................................................................595

Conguring an EdgePort.............................................................................................................................................. 595

Flush MAC Addresses after a Topology Change....................................................................................................... 596

MSTP Sample Congurations......................................................................................................................................596

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

CongurationSFTOS Example Running-Conguration.......................................................................................596

Debugging and Verifying MSTP Congurations........................................................................................................ 600

32 Multicast Features...................................................................................................................................602

Enabling IP Multicast.....................................................................................................................................................602

Implementation Information..........................................................................................................................................602

Multicast Policies...........................................................................................................................................................603

IPv4 Multicast Policies............................................................................................................................................603

Understanding Multicast Traceroute (mtrace)........................................................................................................... 610

Important Points to Remember...............................................................................................................................611

Printing Multicast Traceroute (mtrace) Paths.............................................................................................................611

Supported Error Codes..................................................................................................................................................612

mtrace Scenarios............................................................................................................................................................613

33 Object Tracking........................................................................................................................................ 619

Object Tracking Overview............................................................................................................................................. 619

Track Layer 2 Interfaces..........................................................................................................................................620

Track Layer 3 Interfaces..........................................................................................................................................620

Track IPv4 and IPv6 Routes....................................................................................................................................621

Set Tracking Delays................................................................................................................................................. 622

VRRP Object Tracking............................................................................................................................................ 622

Object Tracking Conguration......................................................................................................................................622

Tracking a Layer 2 Interface................................................................................................................................... 622

Tracking a Layer 3 Interface................................................................................................................................... 623

Track an IPv4/IPv6 Route...................................................................................................................................... 625

Displaying Tracked Objects...........................................................................................................................................629

34 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 631

Protocol Overview..........................................................................................................................................................631

Autonomous System (AS) Areas............................................................................................................................ 631

Area Types................................................................................................................................................................ 632

Networks and Neighbors........................................................................................................................................ 633

Router Types............................................................................................................................................................ 633

Designated and Backup Designated Routers.......................................................................................................635

Link-State Advertisements (LSAs)........................................................................................................................635

Router Priority and Cost.........................................................................................................................................636

OSPF with Dell EMC Networking OS......................................................................................................................... 637

Graceful Restart.......................................................................................................................................................638

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................639

Multi-Process OSPFv2 with VRF..........................................................................................................................639

20

Contents

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Dell PowerSwitch S5048F-ON Owner's manual

Dell PowerSwitch S5048F-ON Owner's manual

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