Dell Networking S3100 Series Owner's manual

Dell EMC Conguration Guide for the S3100

Series

9.14.1.5

Notes, cautions, and warnings

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

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

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

may be trademarks of their respective owners.

2019 - 05

Rev. A00

Contents

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

3 Getting Started............................................................................................................................................46

Console Access................................................................................................................................................................ 47

Serial Console............................................................................................................................................................. 47

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................48

Entering CLI commands Using an SSH Connection..............................................................................................48

Executing Local CLI Scripts Using an SSH Connection........................................................................................48

Default Conguration...................................................................................................................................................... 49

Conguring a Host Name............................................................................................................................................... 49

Accessing the System Remotely....................................................................................................................................49

Accessing the System Remotely..............................................................................................................................49

Congure the Management Port IP Address......................................................................................................... 49

Congure a Management Route..............................................................................................................................50

Conguring a Username and Password..................................................................................................................50

Conguring the Enable Password...................................................................................................................................51

Conguration File Management......................................................................................................................................51

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

Mounting an NFS File System..................................................................................................................................52

Save the Running-Conguration..............................................................................................................................54

Congure the Overload Bit for a Startup Scenario............................................................................................... 55

Viewing Files...............................................................................................................................................................55

Compressing Conguration Files............................................................................................................................. 56

Managing the File System.............................................................................................................................................. 58

Enabling Software Features on Devices Using a Command Option..........................................................................59

View Command History.................................................................................................................................................. 59

Contents

3

Upgrading Dell EMC Networking OS............................................................................................................................. 61

Verify Software Images Before Installation....................................................................................................................61

Using HTTP for File Transfers........................................................................................................................................ 62

4 Management................................................................................................................................................64

Conguring Privilege Levels............................................................................................................................................64

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

Removing a Command from EXEC Mode.............................................................................................................. 65

Moving a Command from EXEC Privilege Mode to EXEC Mode....................................................................... 65

Allowing Access to CONFIGURATION Mode Commands....................................................................................65

Allowing Access to Dierent Modes........................................................................................................................65

Applying a Privilege Level to a Username............................................................................................................... 67

Applying a Privilege Level to a Terminal Line...........................................................................................................67

Conguring Logging.........................................................................................................................................................67

Audit and Security Logs............................................................................................................................................ 68

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

Display the Logging Buer and the Logging Conguration.................................................................................. 70

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

Sending System Messages to a Syslog Server...................................................................................................... 72

Track Login Activity..........................................................................................................................................................72

Restrictions for Tracking Login Activity...................................................................................................................72

Conguring Login Activity Tracking......................................................................................................................... 72

Display Login Statistics..............................................................................................................................................73

Limit Concurrent Login Sessions....................................................................................................................................74

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................74

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

Enabling the System to Clear Existing Sessions.................................................................................................... 75

Enabling Secured CLI Mode........................................................................................................................................... 76

Log Messages in the Internal Buer..............................................................................................................................76

Conguration Task List for System Log Management.......................................................................................... 76

Disabling System Logging............................................................................................................................................... 76

Sending System Messages to a Syslog Server............................................................................................................ 77

Conguring a UNIX System as a Syslog Server.....................................................................................................77

Changing System Logging Settings...............................................................................................................................77

Display the Logging Buer and the Logging Conguration........................................................................................ 78

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

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

Enabling Timestamp on Syslog Messages....................................................................................................................80

File Transfer Services...................................................................................................................................................... 83

Conguration Task List for File Transfer Services..................................................................................................83

Enabling the FTP Server...........................................................................................................................................83

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

Conguring FTP Client Parameters.........................................................................................................................84

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

Denying and Permitting Access to a Terminal Line................................................................................................85

Conguring Login Authentication for Terminal Lines.............................................................................................86

4

Contents

Setting Timeout for EXEC Privilege Mode................................................................................................................... 87

Using Telnet to get to Another Network Device.......................................................................................................... 87

Lock CONFIGURATION Mode....................................................................................................................................... 88

Viewing the Conguration Lock Status...................................................................................................................88

Viewing the Reason for Last System Reboot...............................................................................................................88

5 802.1X......................................................................................................................................................... 90

Port-Authentication Process.......................................................................................................................................... 92

EAP over RADIUS......................................................................................................................................................92

Conguring 802.1X...........................................................................................................................................................93

Related Conguration Tasks..................................................................................................................................... 93

Important Points to Remember......................................................................................................................................93

Enabling 802.1X................................................................................................................................................................ 94

Conguring dot1x Prole ................................................................................................................................................95

Conguring MAC addresses for a do1x Prole.............................................................................................................96

Conguring the Static MAB and MAB Prole .............................................................................................................96

Conguring Critical VLAN ..............................................................................................................................................97

Conguring Request Identity Re-Transmissions...........................................................................................................98

Conguring a Quiet Period after a Failed Authentication..................................................................................... 98

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 99

Re-Authenticating a Port.............................................................................................................................................. 100

Conguring Timeouts..................................................................................................................................................... 101

Conguring Dynamic VLAN Assignment with Port Authentication......................................................................... 102

Guest and Authentication-Fail VLANs.........................................................................................................................103

Conguring a Guest VLAN......................................................................................................................................103

Conguring an Authentication-Fail VLAN............................................................................................................. 103

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).................................. 105

Optimizing CAM Utilization During the Attachment of ACLs to VLANs................................................................. 105

Guidelines for Conguring ACL VLAN Groups........................................................................................................... 106

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...............................................106

Conguring ACL VLAN Groups.............................................................................................................................. 106

Conguring FP Blocks for VLAN Parameters....................................................................................................... 107

Viewing CAM Usage...................................................................................................................................................... 108

Allocating FP Blocks for VLAN Processes.................................................................................................................. 109

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

IP Access Control Lists (ACLs)......................................................................................................................................112

CAM Usage................................................................................................................................................................113

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

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

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

Conguring Match Routes....................................................................................................................................... 117

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

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

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

Contents

5

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

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

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

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

Congure a Standard IP ACL........................................................................................................................................ 122

Conguring a Standard IP ACL Filter..................................................................................................................... 123

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

Conguring Filters with a Sequence Number....................................................................................................... 124

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

Congure Layer 2 and Layer 3 ACLs............................................................................................................................126

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

Applying an IP ACL......................................................................................................................................................... 127

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

Congure Ingress ACLs................................................................................................................................................. 128

Congure Egress ACLs..................................................................................................................................................129

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

IP Prex Lists.................................................................................................................................................................. 130

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

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

ACL Remarks.................................................................................................................................................................. 134

Conguring a Remark.............................................................................................................................................. 134

Deleting a Remark.................................................................................................................................................... 135

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

Resequencing an ACL or Prex List.......................................................................................................................136

Route Maps..................................................................................................................................................................... 137

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

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

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

Conguring ACL Logging.........................................................................................................................................139

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

Behavior of Flow-Based Monitoring.......................................................................................................................140

Enabling Flow-Based Monitoring.............................................................................................................................141

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 IPv6 Static Routes...................................................................................................................154

Congure BFD for OSPF.........................................................................................................................................156

Congure BFD for OSPFv3.....................................................................................................................................160

6

Contents

Congure BFD for IS-IS...........................................................................................................................................163

Congure BFD for BGP...........................................................................................................................................165

Congure BFD for VRRP.........................................................................................................................................173

Conguring Protocol Liveness................................................................................................................................ 175

9 Border Gateway Protocol (BGP)................................................................................................................ 176

BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 176

BGP Autonomous Systems..................................................................................................................................... 176

AS4 Number Representation.................................................................................................................................. 178

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

BGP router ID............................................................................................................................................................180

Sessions and Peers.................................................................................................................................................. 180

Establish a Session....................................................................................................................................................181

BGP Attributes for selecting Best Path..................................................................................................................181

Multiprotocol BGP....................................................................................................................................................186

BGP global and address family conguration........................................................................................................187

Implement BGP with Dell EMC Networking OS...................................................................................................189

Conguration Information........................................................................................................................................192

Basic BGP conguration tasks......................................................................................................................................192

Prerequisite for conguring a BGP network......................................................................................................... 192

Restrictions............................................................................................................................................................... 193

Enabling BGP............................................................................................................................................................ 193

Enabling four-byte autonomous system numbers................................................................................................195

Changing a BGP router ID.......................................................................................................................................196

Conguring AS4 Number Representations...........................................................................................................196

Conguring a BGP peer...........................................................................................................................................198

Example-Conguring BGP routing between peers.............................................................................................. 199

BGP peer group....................................................................................................................................................... 200

Advanced BGP conguration tasks.............................................................................................................................206

Route-refresh and Soft-reconguration............................................................................................................... 207

Aggregating Routes.................................................................................................................................................209

Filtering BGP..............................................................................................................................................................211

Conguring BGP Fast Fall-Over.............................................................................................................................218

Conguring Passive Peering................................................................................................................................... 219

Enabling Graceful Restart.......................................................................................................................................220

Redistributing Routes...............................................................................................................................................221

Redistributing iBGP Routes into IGP.....................................................................................................................222

Enabling Additional Paths........................................................................................................................................224

Conguring IP Community Lists............................................................................................................................ 225

Conguring an IP Extended Community List....................................................................................................... 226

Congure BGP attributes........................................................................................................................................227

Enabling Multipath....................................................................................................................................................231

Route Reectors......................................................................................................................................................232

Enabling Route Flap Dampening............................................................................................................................ 233

Changing BGP keepalive and hold timers.............................................................................................................236

Setting the extended timer.....................................................................................................................................237

Contents

7

Enabling or disabling BGP neighbors..................................................................................................................... 237

Route Map Continue............................................................................................................................................... 238

Conguring BGP Confederations.......................................................................................................................... 239

Conguring a BGP VRF address family................................................................................................................ 240

Maintaining Existing AS Numbers During an AS Migration................................................................................. 241

Allowing an AS Number to Appear in its Own AS Path.......................................................................................242

Enabling MBGP Congurations..............................................................................................................................243

MBGP support for IPv6.......................................................................................................................................... 243

Conguring IPv6 MBGP between peers...............................................................................................................243

Example-Conguring IPv4 and IPv6 neighbors................................................................................................... 244

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 246

BGP Regular Expression Optimization..................................................................................................................248

Debugging BGP........................................................................................................................................................248

10 Content Addressable Memory (CAM)....................................................................................................... 251

CAM Allocation............................................................................................................................................................... 251

Test CAM Usage............................................................................................................................................................253

View CAM-ACL Settings.............................................................................................................................................. 253

View CAM Usage...........................................................................................................................................................255

Conguring CAM Threshold and Silence Period........................................................................................................255

Setting CAM Threshold and Silence Period......................................................................................................... 255

CAM Optimization......................................................................................................................................................... 256

Troubleshoot CAM Proling..........................................................................................................................................257

CAM Prole Mismatches........................................................................................................................................ 257

QoS CAM Region Limitation...................................................................................................................................257

11 Control Plane Policing (CoPP).................................................................................................................. 258

Congure Control Plane Policing................................................................................................................................. 259

Conguring CoPP for Protocols............................................................................................................................ 260

Conguring CoPP for CPU Queues...................................................................................................................... 262

CoPP for OSPFv3 Packets.....................................................................................................................................263

Conguring CoPP for OSPFv3.............................................................................................................................. 266

Displaying CoPP Conguration .............................................................................................................................266

12 Dynamic Host Conguration Protocol (DHCP).........................................................................................269

DHCP Packet Format and Options............................................................................................................................. 269

Assign an IP Address using DHCP................................................................................................................................271

Implementation Information..........................................................................................................................................272

Congure the System to be a DHCP Server..............................................................................................................272

Conguring the Server for Automatic Address Allocation.................................................................................. 273

Specifying a Default Gateway.................................................................................................................................274

Congure a Method of Hostname Resolution......................................................................................................275

Using DNS for Address Resolution........................................................................................................................ 275

Using NetBIOS WINS for Address Resolution......................................................................................................275

Creating Manual Binding Entries............................................................................................................................275

Debugging the DHCP Server................................................................................................................................. 276

8

Contents

Using DHCP Clear Commands...............................................................................................................................276

Congure the System to be a Relay Agent.................................................................................................................276

Congure the System to be a DHCP Client............................................................................................................... 278

Conguring the DHCP Client System................................................................................................................... 278

DHCP Client on a Management Interface............................................................................................................ 279

DHCP Client Operation with Other Features.......................................................................................................280

DHCP Relay When DHCP Server and Client are in Dierent VRFs.........................................................................281

Conguring Route Leaking between VRFs on DHCP Relay Agent.................................................................... 281

Non-default VRF conguration for DHCPv6 helper address................................................................................... 282

Conguring DHCP relay source interface...................................................................................................................283

Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 283

Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................283

Congure the System for User Port Stacking (Option 230)....................................................................................285

Congure Secure DHCP...............................................................................................................................................285

Option 82..................................................................................................................................................................285

DHCPv6 relay agent options..................................................................................................................................286

DHCP Snooping.......................................................................................................................................................286

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 291

Dynamic ARP Inspection......................................................................................................................................... 291

Conguring Dynamic ARP Inspection................................................................................................................... 292

Source Address Validation............................................................................................................................................ 294

Enabling IP Source Address Validation..................................................................................................................294

DHCP MAC Source Address Validation................................................................................................................ 295

Enabling IP+MAC Source Address Validation.......................................................................................................295

Viewing the Number of SAV Dropped Packets................................................................................................... 296

Clearing the Number of SAV Dropped Packets...................................................................................................296

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 297

ECMP for Flow-Based Anity..................................................................................................................................... 297

Conguring the Hash Algorithm.............................................................................................................................297

Enabling Deterministic ECMP Next Hop...............................................................................................................297

Conguring the Hash Algorithm Seed.................................................................................................................. 298

Link Bundle Monitoring................................................................................................................................................. 298

Managing ECMP Group Paths...............................................................................................................................299

Creating an ECMP Group Bundle..........................................................................................................................299

Modifying the ECMP Group Threshold................................................................................................................ 299

14 FIPS Cryptography................................................................................................................................... 301

Conguration Tasks........................................................................................................................................................301

Preparing the System.................................................................................................................................................... 301

Enabling FIPS Mode...................................................................................................................................................... 302

Generating Host-Keys...................................................................................................................................................302

Monitoring FIPS Mode Status......................................................................................................................................302

Disabling FIPS Mode..................................................................................................................................................... 303

15 Force10 Resilient Ring Protocol (FRRP)...................................................................................................304

Contents

9

Protocol Overview.........................................................................................................................................................304

Ring Status...............................................................................................................................................................305

Multiple FRRP Rings............................................................................................................................................... 305

Important FRRP Points...........................................................................................................................................306

Important FRRP Concepts..................................................................................................................................... 307

Implementing FRRP.......................................................................................................................................................308

FRRP Conguration...................................................................................................................................................... 308

Creating the FRRP Group...................................................................................................................................... 308

Conguring the Control VLAN...............................................................................................................................309

Conguring and Adding the Member VLANs....................................................................................................... 310

Setting the FRRP Timers......................................................................................................................................... 311

Clearing the FRRP Counters....................................................................................................................................311

Viewing the FRRP Conguration............................................................................................................................ 311

Viewing the FRRP Information................................................................................................................................ 311

Troubleshooting FRRP................................................................................................................................................... 312

Conguration Checks...............................................................................................................................................312

Sample Conguration and Topology.............................................................................................................................312

16 GARP VLAN Registration Protocol (GVRP).............................................................................................. 314

Important Points to Remember.................................................................................................................................... 314

Congure GVRP............................................................................................................................................................. 315

Related Conguration Tasks....................................................................................................................................315

Enabling GVRP Globally.................................................................................................................................................316

Enabling GVRP on a Layer 2 Interface.........................................................................................................................316

Congure GVRP Registration....................................................................................................................................... 316

Congure a GARP Timer............................................................................................................................................... 317

RPM Redundancy...........................................................................................................................................................317

17 High Availability (HA)................................................................................................................................ 319

Component Redundancy...............................................................................................................................................319

Automatic and Manual Stack Unit Failover........................................................................................................... 319

Synchronization between Management and Standby Units..............................................................................320

Forcing a Stack Unit Failover................................................................................................................................. 320

Disabling Auto-Reboot............................................................................................................................................. 321

Pre-Conguring a Stack Unit Slot................................................................................................................................321

Removing a Provisioned Logical Stack Unit................................................................................................................ 321

Hitless Behavior............................................................................................................................................................. 322

Graceful Restart.............................................................................................................................................................322

Software Resiliency....................................................................................................................................................... 322

Software Component Health Monitoring............................................................................................................. 322

System Health Monitoring......................................................................................................................................323

Failure and Event Logging.......................................................................................................................................323

Hot-Lock Behavior.........................................................................................................................................................324

18 Internet Group Management Protocol (IGMP)......................................................................................... 325

IGMP Implementation Information.............................................................................................................................. 325

10

Contents

IGMP Protocol Overview..............................................................................................................................................325

IGMP Version 2........................................................................................................................................................ 325

IGMP Version 3........................................................................................................................................................ 327

Congure IGMP............................................................................................................................................................. 330

Related Conguration Tasks...................................................................................................................................330

Viewing IGMP Enabled Interfaces................................................................................................................................331

Selecting an IGMP Version............................................................................................................................................331

Viewing IGMP Groups...................................................................................................................................................332

Adjusting Timers............................................................................................................................................................ 332

Adjusting Query and Response Timers................................................................................................................. 332

Preventing a Host from Joining a Group.................................................................................................................... 333

Enabling IGMP Immediate-Leave.................................................................................................................................336

IGMP Snooping..............................................................................................................................................................336

IGMP Snooping Implementation Information....................................................................................................... 336

Conguring IGMP Snooping...................................................................................................................................336

Removing a Group-Port Association..................................................................................................................... 337

Disabling Multicast Flooding................................................................................................................................... 337

Specifying a Port as Connected to a Multicast Router...................................................................................... 338

Conguring the Switch as Querier........................................................................................................................ 338

Fast Convergence after MSTP Topology Changes...................................................................................................339

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................339

Protocol Separation.................................................................................................................................................339

Enabling and Disabling Management Egress Interface Selection...................................................................... 340

Handling of Management Route Conguration....................................................................................................341

Handling of Switch-Initiated Trac....................................................................................................................... 342

Handling of Switch-Destined Trac......................................................................................................................342

Handling of Transit Trac (Trac Separation).................................................................................................... 343

Mapping of Management Applications and Trac Type.....................................................................................343

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 344

Behavior of Various Applications for Switch-Destined Trac ...........................................................................345

Interworking of EIS With Various Applications.....................................................................................................346

Designating a Multicast Router Interface...................................................................................................................346

19 Interfaces................................................................................................................................................. 348

Basic Interface Conguration.......................................................................................................................................348

Advanced Interface Conguration...............................................................................................................................348

Interface Types...............................................................................................................................................................349

Optional Modules...........................................................................................................................................................349

View Basic Interface Information.................................................................................................................................350

Resetting an Interface to its Factory Default State................................................................................................... 351

Enabling Energy Ecient Ethernet..............................................................................................................................352

View EEE Information................................................................................................................................................... 352

Clear EEE Counters.......................................................................................................................................................356

Enabling a Physical Interface........................................................................................................................................357

Physical Interfaces.........................................................................................................................................................357

Conguration Task List for Physical Interfaces....................................................................................................358

Contents

11

Overview of Layer Modes...................................................................................................................................... 358

Conguring Layer 2 (Data Link) Mode..................................................................................................................358

Conguring Layer 2 (Interface) Mode.................................................................................................................. 359

Conguring Layer 3 (Network) Mode...................................................................................................................359

Conguring Layer 3 (Interface) Mode.................................................................................................................. 360

Automatic recovery of an Err-disabled interface.......................................................................................................360

Conguring an automatic recovery for an Err-disabled interface...................................................................... 361

Egress Interface Selection (EIS)...................................................................................................................................361

Important Points to Remember............................................................................................................................. 362

Conguring EIS........................................................................................................................................................ 362

Management Interfaces................................................................................................................................................362

Conguring Management Interfaces.....................................................................................................................362

Conguring a Management Interface on an Ethernet Port................................................................................364

VLAN Interfaces............................................................................................................................................................ 364

Loopback Interfaces......................................................................................................................................................365

Null Interfaces................................................................................................................................................................ 365

Port Channel Interfaces................................................................................................................................................366

Port Channel Denition and Standards.................................................................................................................366

Port Channel Benets.............................................................................................................................................366

Port Channel Implementation.................................................................................................................................366

Interfaces in Port Channels.................................................................................................................................... 367

Conguration Tasks for Port Channel Interfaces.................................................................................................367

Creating a Port Channel..........................................................................................................................................367

Adding a Physical Interface to a Port Channel.....................................................................................................368

Reassigning an Interface to a New Port Channel................................................................................................369

Conguring the Minimum Oper Up Links in a Port Channel...............................................................................370

Adding or Removing a Port Channel from a VLAN..............................................................................................370

Assigning an IP Address to a Port Channel...........................................................................................................372

Deleting or Disabling a Port Channel..................................................................................................................... 372

Load Balancing Through Port Channels................................................................................................................372

Load-Balancing Method..........................................................................................................................................372

Changing the Hash Algorithm................................................................................................................................ 373

Bulk Conguration..........................................................................................................................................................374

Interface Range........................................................................................................................................................374

Bulk Conguration Examples..................................................................................................................................375

Dening Interface Range Macros................................................................................................................................ 376

Dene the Interface Range.....................................................................................................................................376

Choosing an Interface-Range Macro.................................................................................................................... 376

Monitoring and Maintaining Interfaces........................................................................................................................377

Maintenance Using TDR......................................................................................................................................... 378

Link Dampening..............................................................................................................................................................378

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

Conguration Example of Link Dampening...........................................................................................................379

Enabling Link Dampening.........................................................................................................................................381

Link Bundle Monitoring................................................................................................................................................. 382

12

Contents

Using Ethernet Pause Frames for Flow Control........................................................................................................ 383

Enabling Pause Frames........................................................................................................................................... 383

Congure the MTU Size on an Interface....................................................................................................................384

Port-Pipes.......................................................................................................................................................................385

Auto-Negotiation on Ethernet Interfaces...................................................................................................................385

Setting the Speed of Ethernet Interfaces............................................................................................................385

Set Auto-Negotiation Options................................................................................................................................387

Provisioning Combo Ports............................................................................................................................................ 388

View Advanced Interface Information.........................................................................................................................388

Conguring the Interface Sampling Size.............................................................................................................. 389

Conguring the Trac Sampling Size Globally.......................................................................................................... 390

Dynamic Counters.......................................................................................................................................................... 391

Clearing Interface Counters....................................................................................................................................392

20 Internet Protocol Security (IPSec).......................................................................................................... 393

Conguring IPSec .........................................................................................................................................................393

21 IPv4 Routing............................................................................................................................................ 395

IP Addresses...................................................................................................................................................................396

Implementation Information....................................................................................................................................396

Conguration Tasks for IP Addresses......................................................................................................................... 396

Assigning IP Addresses to an Interface.......................................................................................................................396

Conguring Static Routes.............................................................................................................................................397

Adding description for IPv4 and IPv6 static routes.............................................................................................398

Congure Static Routes for the Management Interface..........................................................................................399

IPv4 Path MTU Discovery Overview.......................................................................................................................... 399

Packet handling during MTU mismatch................................................................................................................400

Using the Congured Source IP Address in ICMP Messages..................................................................................400

Conguring the ICMP Source Interface............................................................................................................... 400

Conguring the Duration to Establish a TCP Connection.........................................................................................401

Enabling Directed Broadcast.........................................................................................................................................401

Resolution of Host Names............................................................................................................................................ 401

Enabling Dynamic Resolution of Host Names............................................................................................................402

Specifying the Local System Domain and a List of Domains................................................................................... 402

Conguring DNS with Traceroute................................................................................................................................403

ARP................................................................................................................................................................................. 403

Conguration Tasks for ARP........................................................................................................................................ 404

Conguring Static ARP Entries....................................................................................................................................404

Enabling Proxy ARP.......................................................................................................................................................404

Clearing ARP Cache......................................................................................................................................................405

ARP Learning via Gratuitous ARP............................................................................................................................... 405

Enabling ARP Learning via Gratuitous ARP................................................................................................................405

ARP Learning via ARP Request...................................................................................................................................405

Conguring ARP Retries...............................................................................................................................................406

ICMP................................................................................................................................................................................407

Conguration Tasks for ICMP...................................................................................................................................... 407

Contents

13

Enabling ICMP Unreachable Messages...................................................................................................................... 407

ICMP Redirects..............................................................................................................................................................407

UDP Helper.....................................................................................................................................................................408

Congure UDP Helper............................................................................................................................................ 408

Important Points to Remember............................................................................................................................. 409

Enabling UDP Helper.....................................................................................................................................................409

Conguring a Broadcast Address................................................................................................................................ 409

Congurations Using UDP Helper................................................................................................................................ 410

UDP Helper with Broadcast-All Addresses................................................................................................................. 410

UDP Helper with Subnet Broadcast Addresses.......................................................................................................... 411

UDP Helper with Congured Broadcast Addresses....................................................................................................411

UDP Helper with No Congured Broadcast Addresses.............................................................................................412

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

22 IPv6 Routing.............................................................................................................................................413

Protocol Overview..........................................................................................................................................................413

Extended Address Space.........................................................................................................................................414

Stateless Autoconguration.................................................................................................................................... 414

IPv6 Headers.............................................................................................................................................................414

IPv6 Header Fields................................................................................................................................................... 415

Extension Header Fields...........................................................................................................................................417

Addressing.................................................................................................................................................................418

Implementing IPv6 with Dell EMC Networking OS....................................................................................................419

ICMPv6...........................................................................................................................................................................420

Path MTU discovery...................................................................................................................................................... 421

IPv6 Neighbor Discovery...............................................................................................................................................421

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................422

Conguration Task List for IPv6 RDNSS.................................................................................................................... 422

Conguring the IPv6 Recursive DNS Server....................................................................................................... 422

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 423

Displaying IPv6 RDNSS Information......................................................................................................................424

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 424

Conguration Tasks for IPv6........................................................................................................................................ 425

Adjusting Your CAM-Prole....................................................................................................................................425

Assigning an IPv6 Address to an Interface........................................................................................................... 426

Assigning a Static IPv6 Route................................................................................................................................426

Conguring Telnet with IPv6.................................................................................................................................. 427

SNMP over IPv6...................................................................................................................................................... 427

Displaying IPv6 Information.................................................................................................................................... 427

Displaying an IPv6 Interface Information.............................................................................................................. 428

Showing IPv6 Routes..............................................................................................................................................428

Showing the Running-Conguration for an Interface.........................................................................................430

Clearing IPv6 Routes...............................................................................................................................................430

Disabling ND Entry Timeout................................................................................................................................... 430

Conguring IPv6 RA Guard........................................................................................................................................... 431

Conguring IPv6 RA Guard on an Interface.........................................................................................................432

14

Contents

Monitoring IPv6 RA Guard......................................................................................................................................433

23 iSCSI Optimization...................................................................................................................................434

iSCSI Optimization Overview....................................................................................................................................... 434

Monitoring iSCSI Trac Flows...............................................................................................................................436

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

Information Monitored in iSCSI Trac Flows.......................................................................................................436

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

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 437

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

Enable and Disable iSCSI Optimization................................................................................................................. 438

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

iSCSI Optimization Prerequisites................................................................................................................................. 439

Conguring iSCSI Optimization....................................................................................................................................439

Displaying iSCSI Optimization Information.................................................................................................................. 441

24 Intermediate System to Intermediate System...........................................................................................443

IS-IS Protocol Overview................................................................................................................................................443

IS-IS Addressing.............................................................................................................................................................443

Multi-Topology IS-IS...................................................................................................................................................... 444

Transition Mode........................................................................................................................................................444

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

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

Graceful Restart.............................................................................................................................................................445

Timers....................................................................................................................................................................... 445

Implementation Information..........................................................................................................................................445

Conguration Information.............................................................................................................................................446

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

Conguring the Distance of a Route.....................................................................................................................454

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

Redistributing IPv4 Routes..................................................................................................................................... 457

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

Conguring Authentication Passwords.................................................................................................................459

Setting the Overload Bit......................................................................................................................................... 459

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

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

Congure Metric Values................................................................................................................................................ 461

Maximum Values in the Routing Table................................................................................................................... 461

Change the IS-IS Metric Style in One Level Only.................................................................................................461

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

Sample Congurations.................................................................................................................................................. 464

25 Link Aggregation Control Protocol (LACP).............................................................................................. 466

Introduction to Dynamic LAGs and LACP.................................................................................................................. 466

Important Points to Remember............................................................................................................................. 466

LACP Modes............................................................................................................................................................ 467

Contents

15

Conguring LACP Commands............................................................................................................................... 467

LACP Conguration Tasks............................................................................................................................................468

Creating a LAG.........................................................................................................................................................468

Conguring the LAG Interfaces as Dynamic........................................................................................................468

Setting the LACP Long Timeout........................................................................................................................... 469

Monitoring and Debugging LACP..........................................................................................................................469

Shared LAG State Tracking.......................................................................................................................................... 470

Conguring Shared LAG State Tracking............................................................................................................... 470

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

LACP Basic Conguration Example.............................................................................................................................472

Congure a LAG on ALPHA....................................................................................................................................472

26 Layer 2..................................................................................................................................................... 481

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

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

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

Conguring a Static MAC Address........................................................................................................................482

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

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

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

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

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

mac learning-limit station-move.............................................................................................................................484

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

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

Setting Station Move Violation Actions................................................................................................................ 485

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

Disabling MAC Address Learning on the System.................................................................................................486

Enabling port security............................................................................................................................................. 486

NIC Teaming................................................................................................................................................................... 486

Congure Redundant Pairs...........................................................................................................................................487

Important Points about Conguring Redundant Pairs........................................................................................ 489

Far-End Failure Detection.............................................................................................................................................490

FEFD State Changes................................................................................................................................................491

Conguring FEFD.................................................................................................................................................... 492

Enabling FEFD on an Interface...............................................................................................................................492

Debugging FEFD......................................................................................................................................................493

27 Link Layer Discovery Protocol (LLDP)..................................................................................................... 495

802.1AB (LLDP) Overview............................................................................................................................................495

Protocol Data Units................................................................................................................................................. 495

Optional TLVs.................................................................................................................................................................496

Management TLVs.................................................................................................................................................. 496

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 498

TIA Organizationally Specic TLVs........................................................................................................................ 498

Congure LLDP............................................................................................................................................................. 502

16

Contents

Related Conguration Tasks...................................................................................................................................502

Important Points to Remember............................................................................................................................. 502

LLDP Compatibility..................................................................................................................................................503

CONFIGURATION versus INTERFACE Congurations............................................................................................ 503

Enabling LLDP................................................................................................................................................................503

Disabling and Undoing LLDP..................................................................................................................................504

Enabling LLDP on Management Ports........................................................................................................................504

Disabling and Undoing LLDP on Management Ports..........................................................................................504

Advertising TLVs............................................................................................................................................................504

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................506

Reserved Unrecognized LLDP TLVs..................................................................................................................... 506

Organizational Specic Unrecognized LLDP TLVs..............................................................................................506

Viewing Unrecognized LLDP TLVs........................................................................................................................506

Viewing the LLDP Conguration..................................................................................................................................507

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................507

Examples of Viewing Information Advertised by Neighbors...............................................................................507

Conguring LLDPDU Intervals.....................................................................................................................................509

Conguring LLDP Notication Interval........................................................................................................................510

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

Conguring the Time to Live Value...............................................................................................................................511

Debugging LLDP............................................................................................................................................................. 511

Relevant Management Objects.................................................................................................................................... 513

28 Microsoft Network Load Balancing...........................................................................................................518

NLB Unicast Mode Scenario.........................................................................................................................................518

NLB Multicast Mode Scenario......................................................................................................................................518

Limitations of the NLB Feature.....................................................................................................................................519

Microsoft Clustering.......................................................................................................................................................519

Enable and Disable VLAN Flooding ............................................................................................................................. 519

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

Enabling a Switch for Multicast NLB.................................................................................................................... 520

29 Multicast Source Discovery Protocol (MSDP)..........................................................................................521

Protocol Overview..........................................................................................................................................................521

Anycast RP.....................................................................................................................................................................522

Implementation Information..........................................................................................................................................523

Congure Multicast Source Discovery Protocol........................................................................................................523

Related Conguration Tasks...................................................................................................................................523

Enable MSDP................................................................................................................................................................. 527

Manage the Source-Active Cache.............................................................................................................................. 528

Viewing the Source-Active Cache.........................................................................................................................528

Limiting the Source-Active Cache.........................................................................................................................528

Clearing the Source-Active Cache........................................................................................................................ 529

Enabling the Rejected Source-Active Cache....................................................................................................... 529

Accept Source-Active Messages that Fail the RFP Check......................................................................................529

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

Contents

17

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

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

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

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

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

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

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

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

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

Conguring Anycast RP................................................................................................................................................538

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

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

MSDP Sample Congurations...................................................................................................................................... 541

33 Multicast Listener Discovery Protocol..................................................................................................... 544

MLD Version 1................................................................................................................................................................ 544

MLD Querier Router......................................................................................................................................................544

Joining a Multicast Group.............................................................................................................................................545

Leaving a Multicast Group............................................................................................................................................545

MLD version 2................................................................................................................................................................545

MLD timers.....................................................................................................................................................................547

Reducing Host Response Burstiness.................................................................................................................... 548

Conguring MLD Version..............................................................................................................................................548

Clearing MLD groups.....................................................................................................................................................548

Debugging MLD.............................................................................................................................................................548

Explicit Tracking............................................................................................................................................................. 548

Reducing Leave Latency...............................................................................................................................................549

Displaying MLD groups table........................................................................................................................................549

Displaying MLD Interfaces............................................................................................................................................549

31 Multiple Spanning Tree Protocol (MSTP).................................................................................................550

Protocol Overview.........................................................................................................................................................550

Spanning Tree Variations............................................................................................................................................... 551

Implementation Information.................................................................................................................................... 551

Congure Multiple Spanning Tree Protocol.................................................................................................................551

Related Conguration Tasks...................................................................................................................................552

Enable Multiple Spanning Tree Globally...................................................................................................................... 552

Adding and Removing Interfaces.................................................................................................................................552

Creating Multiple Spanning Tree Instances................................................................................................................ 553

Inuencing MSTP Root Selection................................................................................................................................554

Interoperate with Non-Dell Bridges.............................................................................................................................554

Changing the Region Name or Revision.....................................................................................................................555

Modifying Global Parameters.......................................................................................................................................555

Modifying the Interface Parameters........................................................................................................................... 556

Setting STP path cost as constant............................................................................................................................. 557

Conguring an EdgePort.............................................................................................................................................. 558

18

Contents

Flush MAC Addresses after a Topology Change....................................................................................................... 558

MSTP Sample Congurations......................................................................................................................................559

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

CongurationSFTOS Example Running-Conguration.......................................................................................559

Debugging and Verifying MSTP Congurations........................................................................................................ 562

32 Multicast Features...................................................................................................................................564

Enabling IP Multicast.....................................................................................................................................................564

Implementation Information......................................................................................................................................... 564

Multicast Policies...........................................................................................................................................................565

IPv4 Multicast Policies............................................................................................................................................565

Understanding Multicast Traceroute (mtrace).....................................................................................................572

Printing Multicast Traceroute (mtrace) Paths......................................................................................................573

Supported Error Codes........................................................................................................................................... 574

mtrace Scenarios..................................................................................................................................................... 575

33 Multicast Listener Discovery Protocol...................................................................................................... 581

MLD Version 1................................................................................................................................................................. 581

MLD Querier Router.......................................................................................................................................................581

Joining a Multicast Group.............................................................................................................................................582

Leaving a Multicast Group............................................................................................................................................582

MLD version 2................................................................................................................................................................582

MLD timers.....................................................................................................................................................................584

Reducing Host Response Burstiness.................................................................................................................... 585

Clearing MLD groups.................................................................................................................................................... 585

Debugging MLD.............................................................................................................................................................585

Explicit Tracking.............................................................................................................................................................585

Reducing Leave Latency...............................................................................................................................................585

Displaying MLD groups table........................................................................................................................................586

Displaying MLD Interfaces............................................................................................................................................586

MLD Snooping............................................................................................................................................................... 586

Enable MLD Snooping.............................................................................................................................................586

Disable MLD Snooping............................................................................................................................................ 587

Congure the switch as a querier..........................................................................................................................587

Specify port as connected to multicast router.....................................................................................................587

Enable Snooping Explicit Tracking.........................................................................................................................588

Display the MLD Snooping Table........................................................................................................................... 588

34 Object Tracking....................................................................................................................................... 589

Object Tracking Overview............................................................................................................................................ 589

Track Layer 2 Interfaces......................................................................................................................................... 590

Track Layer 3 Interfaces......................................................................................................................................... 590

Track IPv4 and IPv6 Routes....................................................................................................................................591

Set Tracking Delays................................................................................................................................................. 592

VRRP Object Tracking............................................................................................................................................ 592

Object Tracking Conguration..................................................................................................................................... 592

Contents

19

Tracking a Layer 2 Interface................................................................................................................................... 592

Tracking a Layer 3 Interface................................................................................................................................... 593

Track an IPv4/IPv6 Route......................................................................................................................................595

Displaying Tracked Objects...........................................................................................................................................599

35 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 601

Protocol Overview..........................................................................................................................................................601

Autonomous System (AS) Areas............................................................................................................................ 601

Area Types................................................................................................................................................................ 602

Networks and Neighbors........................................................................................................................................603

Router Types............................................................................................................................................................ 603

Designated and Backup Designated Routers.......................................................................................................605

Link-State Advertisements (LSAs)........................................................................................................................605

Router Priority and Cost.........................................................................................................................................606

OSPF with Dell EMC Networking OS......................................................................................................................... 607

Graceful Restart...................................................................................................................................................... 608

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................609

Multi-Process OSPFv2 with VRF..........................................................................................................................609

OSPF ACK Packing................................................................................................................................................. 609

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 609

Conguration Information............................................................................................................................................. 610

Conguration Task List for OSPFv2 (OSPF for IPv4)......................................................................................... 610

OSPFv3 NSSA............................................................................................................................................................... 624

NSSA Options.......................................................................................................................................................... 624

Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 625

Enabling IPv6 Unicast Routing...............................................................................................................................625

Applying cost for OSPFv3...................................................................................................................................... 626

Assigning IPv6 Addresses on an Interface............................................................................................................626

Assigning Area ID on an Interface..........................................................................................................................626

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................627

Assigning OSPFv3 Process ID and Router ID to a VRF...................................................................................... 627

Conguring Stub Areas...........................................................................................................................................628

Conguring Passive-Interface................................................................................................................................628

Redistributing Routes..............................................................................................................................................628

Conguring a Default Route...................................................................................................................................629

Enabling OSPFv3 Graceful Restart....................................................................................................................... 629

OSPFv3 Authentication Using IPsec......................................................................................................................631

Troubleshooting OSPFv3........................................................................................................................................ 637

MIB Support for OSPFv3............................................................................................................................................. 638

Viewing the OSPFv3 MIB.......................................................................................................................................639

36 Policy-based Routing (PBR)....................................................................................................................640

Overview.........................................................................................................................................................................640

Implementing PBR..........................................................................................................................................................641

Conguration Task List for Policy-based Routing.......................................................................................................641

PBR Exceptions (Permit)........................................................................................................................................ 641

20

Contents

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