Dell Networking S3100 Series User guide

Dell EMC Configuration Guide for the S3100

Series

9.14.2.6

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.

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2020 - 03

Rev. A00

1 About this Guide..........................................................................................................................31

Audience................................................................................................................................................................................31

Conventions.......................................................................................................................................................................... 31

Related Documents..............................................................................................................................................................31

2 Configuration Fundamentals....................................................................................................... 32

Accessing the Command Line............................................................................................................................................32

CLI Modes............................................................................................................................................................................ 32

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

The do Command................................................................................................................................................................36

Undoing Commands............................................................................................................................................................ 37

Obtaining Help......................................................................................................................................................................37

Entering and Editing Commands....................................................................................................................................... 37

Command History................................................................................................................................................................38

Filtering show Command Outputs.................................................................................................................................... 38

Multiple Users in Configuration Mode.............................................................................................................................. 40

3 Getting Started.......................................................................................................................... 41

Console Access....................................................................................................................................................................42

Serial Console.................................................................................................................................................................42

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................... 43

Default Configuration..........................................................................................................................................................44

Configuring a Host Name................................................................................................................................................... 44

Accessing the System Remotely.......................................................................................................................................44

Configure the Management Port IP Address.............................................................................................................44

Configure a Management Route................................................................................................................................. 44

Configuring a Username and Password..................................................................................................................... 45

Configuring the Enable Password..................................................................................................................................... 45

Configuration File Management........................................................................................................................................ 46

Copy Files to and from the System.............................................................................................................................46

Mounting an NFS File System......................................................................................................................................47

Save the Running-Configuration................................................................................................................................. 48

Configure the Overload Bit for a Startup Scenario...................................................................................................48

Viewing Files...................................................................................................................................................................48

Compressing Configuration Files.................................................................................................................................49

Managing the File System...................................................................................................................................................51

Enabling Software Features on Devices Using a Command Option.............................................................................52

View Command History......................................................................................................................................................52

Upgrading Dell EMC Networking OS................................................................................................................................54

Verify Software Images Before Installation......................................................................................................................54

Using HTTP for File Transfers...........................................................................................................................................55

4 Management..............................................................................................................................56

Configuring Privilege Levels...............................................................................................................................................56

Contents

Contents 3

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

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

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

Allowing Access to Different Modes...........................................................................................................................57

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

Applying a Privilege Level to a Terminal Line............................................................................................................. 59

Configuring Logging............................................................................................................................................................59

Audit and Security Logs................................................................................................................................................59

Configuring Logging Format ................................................................................................................................. 61

Display the Logging Buffer and the Logging Configuration......................................................................................61

Setting Up a Secure Connection to a Syslog Server.......................................................................................62

Sending System Messages to a Syslog Server..........................................................................................................63

Track Login Activity............................................................................................................................................................ 63

Restrictions for Tracking Login Activity......................................................................................................................63

Configuring Login Activity Tracking............................................................................................................................ 63

Display Login Statistics................................................................................................................................................. 63

Limit Concurrent Login Sessions.......................................................................................................................................65

Restrictions for Limiting the Number of Concurrent Sessions................................................................................65

Configuring Concurrent Session Limit........................................................................................................................ 65

Enabling the System to Clear Existing Sessions........................................................................................................65

Enabling Secured CLI Mode...............................................................................................................................................66

Log Messages in the Internal Buffer.................................................................................................................................66

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

Sending System Messages to a Syslog Server................................................................................................................67

Configuring a UNIX System as a Syslog Server........................................................................................................ 67

Changing System Logging Settings.................................................................................................................................. 67

Display the Logging Buffer and the Logging Configuration...........................................................................................68

Configuring a UNIX Logging Facility Level.......................................................................................................................69

Synchronizing Log Messages............................................................................................................................................ 69

Enabling Timestamp on Syslog Messages........................................................................................................................70

File Transfer Services..........................................................................................................................................................73

Enabling the FTP Server...............................................................................................................................................73

Configuring FTP Server Parameters...........................................................................................................................73

Configuring FTP Client Parameters.............................................................................................................................74

Terminal Lines...................................................................................................................................................................... 74

Denying and Permitting Access to a Terminal Line................................................................................................... 74

Configuring Login Authentication for Terminal Lines................................................................................................75

Setting Timeout for EXEC Privilege Mode.......................................................................................................................76

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

Lock CONFIGURATION Mode...........................................................................................................................................77

Viewing the Reason for Last System Reboot.................................................................................................................. 77

5 802.1X....................................................................................................................................... 79

Port-Authentication Process............................................................................................................................................. 80

EAP over RADIUS.......................................................................................................................................................... 81

Configuring 802.1X...............................................................................................................................................................81

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

Enabling 802.1X....................................................................................................................................................................82

Configuring dot1x Profile ................................................................................................................................................... 83

Configuring MAC addresses for a do1x Profile................................................................................................................84

4

Contents

Configuring the Static MAB and MAB Profile ................................................................................................................ 84

Configuring Critical VLAN ................................................................................................................................................. 85

Configuring Request Identity Re-Transmissions............................................................................................................. 86

Configuring a Quiet Period after a Failed Authentication.........................................................................................86

Forcibly Authorizing or Unauthorizing a Port...................................................................................................................87

Re-Authenticating a Port....................................................................................................................................................87

Configuring Timeouts..........................................................................................................................................................88

Configuring Dynamic VLAN Assignment with Port Authentication..............................................................................89

Guest and Authentication-Fail VLANs..............................................................................................................................90

Configuring a Guest VLAN............................................................................................................................................91

Configuring an Authentication-Fail VLAN................................................................................................................... 91

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)..........................93

Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................................................93

Guidelines for Configuring ACL VLAN Groups................................................................................................................ 93

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters................................................... 94

Configuring ACL VLAN Groups................................................................................................................................... 94

Configuring FP Blocks for VLAN Parameters............................................................................................................95

Viewing CAM Usage........................................................................................................................................................... 95

Allocating FP Blocks for VLAN Processes....................................................................................................................... 97

7 Access Control Lists (ACLs)........................................................................................................98

IP Access Control Lists (ACLs)......................................................................................................................................... 99

CAM Usage.................................................................................................................................................................... 99

Implementing ACLs on Dell EMC Networking OS................................................................................................... 100

Important Points to Remember........................................................................................................................................ 101

Configuration Task List for Route Maps....................................................................................................................101

Configuring Match Routes..........................................................................................................................................103

Configuring Set Conditions.........................................................................................................................................104

Configure a Route Map for Route Redistribution....................................................................................................105

Configure a Route Map for Route Tagging.............................................................................................................. 105

Continue Clause........................................................................................................................................................... 106

IP Fragment Handling........................................................................................................................................................106

IP Fragments ACL Examples...................................................................................................................................... 106

Layer 4 ACL Rules Examples...................................................................................................................................... 107

Configure a Standard IP ACL........................................................................................................................................... 107

Configuring a Standard IP ACL Filter........................................................................................................................ 108

Configure an Extended IP ACL........................................................................................................................................ 109

Configuring Filters with a Sequence Number...........................................................................................................109

Configuring Filters Without a Sequence Number.....................................................................................................110

Configure Layer 2 and Layer 3 ACLs................................................................................................................................ 111

Assign an IP ACL to an Interface.......................................................................................................................................111

Applying an IP ACL.............................................................................................................................................................. 111

Counting ACL Hits........................................................................................................................................................ 112

Configure Ingress ACLs..................................................................................................................................................... 112

Configure Egress ACLs...................................................................................................................................................... 113

Applying Egress Layer 3 ACLs (Control-Plane)........................................................................................................ 114

IP Prefix Lists.......................................................................................................................................................................114

Configuration Task List for Prefix Lists......................................................................................................................115

Contents

5

ACL Remarks.......................................................................................................................................................................117

Configuring a Remark...................................................................................................................................................118

Deleting a Remark.........................................................................................................................................................118

ACL Resequencing............................................................................................................................................................. 119

Resequencing an ACL or Prefix List...........................................................................................................................119

Route Maps........................................................................................................................................................................ 120

Logging of ACL Processes............................................................................................................................................... 120

Guidelines for Configuring ACL Logging.................................................................................................................... 121

Configuring ACL Logging............................................................................................................................................ 122

Flow-Based Monitoring..................................................................................................................................................... 122

Enabling Flow-Based Monitoring................................................................................................................................123

8 Bidirectional Forwarding Detection (BFD)................................................................................... 125

How BFD Works.................................................................................................................................................................125

BFD Packet Format..................................................................................................................................................... 126

BFD Sessions................................................................................................................................................................ 127

BFD Three-Way Handshake....................................................................................................................................... 128

Session State Changes................................................................................................................................................129

Important Points to Remember....................................................................................................................................... 129

Configure BFD....................................................................................................................................................................129

Configure BFD for Physical Ports..............................................................................................................................130

Configure BFD for Static Routes................................................................................................................................131

Configure BFD for IPv6 Static Routes...................................................................................................................... 134

Configure BFD for OSPF............................................................................................................................................ 136

Configure BFD for OSPFv3........................................................................................................................................ 139

Configure BFD for IS-IS...............................................................................................................................................142

Configure BFD for BGP...............................................................................................................................................144

Configure BFD for VRRP.............................................................................................................................................151

Configuring Protocol Liveness....................................................................................................................................153

9 Border Gateway Protocol (BGP).................................................................................................154

BGP IP version 4 (BGPv4) Overview..............................................................................................................................154

BGP Autonomous Systems.........................................................................................................................................154

AS4 Number Representation......................................................................................................................................156

Four-Byte AS Numbers...............................................................................................................................................158

BGP router ID............................................................................................................................................................... 158

Sessions and Peers...................................................................................................................................................... 158

Establish a Session.......................................................................................................................................................158

BGP Attributes for selecting Best Path....................................................................................................................159

Multiprotocol BGP....................................................................................................................................................... 164

BGP global and address family configuration...........................................................................................................165

Implement BGP with Dell EMC Networking OS...................................................................................................... 166

Configuration Information...........................................................................................................................................169

Basic BGP configuration tasks.........................................................................................................................................169

Prerequisite for configuring a BGP network............................................................................................................ 169

Restrictions...................................................................................................................................................................169

Enabling BGP................................................................................................................................................................169

Enabling four-byte autonomous system numbers.................................................................................................... 171

Changing a BGP router ID...........................................................................................................................................172

6

Contents

Configuring AS4 Number Representations...............................................................................................................172

Configuring a BGP peer...............................................................................................................................................173

Example-Configuring BGP routing between peers..................................................................................................174

BGP peer group............................................................................................................................................................175

Advanced BGP configuration tasks.................................................................................................................................182

Route-refresh and Soft-reconfiguration...................................................................................................................182

Aggregating Routes..................................................................................................................................................... 184

Filtering BGP.................................................................................................................................................................186

Configuring BGP Fast Fall-Over................................................................................................................................. 191

Configuring Passive Peering.......................................................................................................................................192

Enabling Graceful Restart........................................................................................................................................... 193

Redistributing Routes.................................................................................................................................................. 194

Redistributing iBGP Routes into IGP......................................................................................................................... 194

Enabling Additional Paths............................................................................................................................................197

Configuring IP Community Lists.................................................................................................................................197

Configuring an IP Extended Community List............................................................................................................198

Configure BGP attributes........................................................................................................................................... 199

Enabling Multipath.......................................................................................................................................................202

Route Reflectors......................................................................................................................................................... 203

Enabling Route Flap Dampening................................................................................................................................204

Changing BGP keepalive and hold timers................................................................................................................ 206

Setting the extended timer........................................................................................................................................ 207

Enabling or disabling BGP neighbors.........................................................................................................................207

Route Map Continue...................................................................................................................................................208

Configuring BGP Confederations..............................................................................................................................209

Configuring a BGP VRF address family....................................................................................................................209

Maintaining Existing AS Numbers During an AS Migration.....................................................................................210

Allowing an AS Number to Appear in its Own AS Path........................................................................................... 211

Enabling MBGP Configurations..................................................................................................................................212

MBGP support for IPv6...............................................................................................................................................212

Configuring IPv6 MBGP between peers...................................................................................................................212

Example-Configuring IPv4 and IPv6 neighbors........................................................................................................213

Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor............................................. 215

BGP Regular Expression Optimization.......................................................................................................................217

Debugging BGP............................................................................................................................................................ 217

10 Content Addressable Memory (CAM)........................................................................................ 219

CAM Allocation...................................................................................................................................................................219

Test CAM Usage...............................................................................................................................................................220

View CAM-ACL Settings.................................................................................................................................................. 221

View CAM Usage.............................................................................................................................................................. 222

Configuring CAM Threshold and Silence Period........................................................................................................... 223

CAM Optimization.............................................................................................................................................................224

Troubleshoot CAM Profiling.............................................................................................................................................224

QoS CAM Region Limitation...................................................................................................................................... 224

11 Control Plane Policing (CoPP).................................................................................................. 226

Configure Control Plane Policing.....................................................................................................................................227

Configuring CoPP for Protocols................................................................................................................................228

Contents

7

Configuring CoPP for CPU Queues..........................................................................................................................229

CoPP for OSPFv3 Packets........................................................................................................................................230

Configuring CoPP for OSPFv3..................................................................................................................................232

Displaying CoPP Configuration .................................................................................................................................233

12 Dynamic Host Configuration Protocol (DHCP)...........................................................................235

DHCP Packet Format and Options.................................................................................................................................235

Assign an IP Address using DHCP.................................................................................................................................. 236

Implementation Information............................................................................................................................................. 237

Configure the System to be a DHCP Server.................................................................................................................238

Configuring the Server for Automatic Address Allocation..................................................................................... 238

Specifying a Default Gateway....................................................................................................................................239

Configure a Method of Hostname Resolution.........................................................................................................239

Using DNS for Address Resolution........................................................................................................................... 239

Using NetBIOS WINS for Address Resolution.........................................................................................................240

Creating Manual Binding Entries............................................................................................................................... 240

Debugging the DHCP Server.....................................................................................................................................240

Using DHCP Clear Commands.................................................................................................................................. 240

Configure the System to be a Relay Agent.................................................................................................................... 241

Configure the System to be a DHCP Client.................................................................................................................. 242

Configuring the DHCP Client System.......................................................................................................................242

DHCP Client on a Management Interface................................................................................................................243

DHCP Client Operation with Other Features.......................................................................................................... 244

DHCP Relay When DHCP Server and Client are in Different VRFs...........................................................................245

Configuring Route Leaking between VRFs on DHCP Relay Agent...................................................................... 245

Non-default VRF configuration for DHCPv6 helper address...................................................................................... 246

Configuring DHCP relay source interface......................................................................................................................246

Global DHCP relay source IPv4 or IPv6 configuration .......................................................................................... 246

Interface level DHCP relay source IPv4 or IPv6 configuration .............................................................................247

Configure the System for User Port Stacking (Option 230)...................................................................................... 248

Configure Secure DHCP.................................................................................................................................................. 248

Option 82 (DHCPv4 relay options)...........................................................................................................................248

DHCPv6 relay agent options......................................................................................................................................249

DHCP Snooping...........................................................................................................................................................249

Drop DHCP Packets on Snooped VLANs Only....................................................................................................... 253

Dynamic ARP Inspection............................................................................................................................................ 254

Configuring Dynamic ARP Inspection.......................................................................................................................254

Source Address Validation............................................................................................................................................... 255

Enabling IP Source Address Validation..................................................................................................................... 255

DHCP MAC Source Address Validation................................................................................................................... 256

Enabling IP+MAC Source Address Validation..........................................................................................................256

Viewing the Number of SAV Dropped Packets.......................................................................................................257

Clearing the Number of SAV Dropped Packets...................................................................................................... 257

13 Equal Cost Multi-Path (ECMP).................................................................................................258

ECMP for Flow-Based Affinity........................................................................................................................................258

Configuring the Hash Algorithm................................................................................................................................258

Enabling Deterministic ECMP Next Hop..................................................................................................................258

Configuring the Hash Algorithm Seed...................................................................................................................... 258

8

Contents

Link Bundle Monitoring.....................................................................................................................................................259

Managing ECMP Group Paths.................................................................................................................................. 259

Creating an ECMP Group Bundle............................................................................................................................. 260

Modifying the ECMP Group Threshold....................................................................................................................260

14 FIPS Cryptography.................................................................................................................. 261

Configuration Tasks...........................................................................................................................................................261

Preparing the System........................................................................................................................................................261

Enabling FIPS Mode...........................................................................................................................................................261

Generating Host-Keys...................................................................................................................................................... 262

Monitoring FIPS Mode Status.........................................................................................................................................262

Disabling FIPS Mode......................................................................................................................................................... 263

15 Force10 Resilient Ring Protocol (FRRP).................................................................................... 264

Protocol Overview............................................................................................................................................................ 264

Ring Status...................................................................................................................................................................265

Multiple FRRP Rings................................................................................................................................................... 265

Important FRRP Points.............................................................................................................................................. 266

Important FRRP Concepts.........................................................................................................................................267

Implementing FRRP.......................................................................................................................................................... 267

FRRP Configuration..........................................................................................................................................................268

Creating the FRRP Group.......................................................................................................................................... 268

Configuring the Control VLAN...................................................................................................................................268

Configuring and Adding the Member VLANs.......................................................................................................... 269

Setting the FRRP Timers............................................................................................................................................270

Clearing the FRRP Counters......................................................................................................................................270

Viewing the FRRP Configuration...............................................................................................................................270

Viewing the FRRP Information.................................................................................................................................. 270

Troubleshooting FRRP...................................................................................................................................................... 271

Sample Configuration and Topology................................................................................................................................271

16 GARP VLAN Registration Protocol (GVRP)................................................................................273

Configure GVRP................................................................................................................................................................ 274

Enabling GVRP Globally.................................................................................................................................................... 274

Enabling GVRP on a Layer 2 Interface........................................................................................................................... 275

Configure GVRP Registration..........................................................................................................................................275

Configure a GARP Timer..................................................................................................................................................276

RPM Redundancy............................................................................................................................................................. 276

17 High Availability (HA)...............................................................................................................277

Component Redundancy.................................................................................................................................................. 277

Automatic and Manual Stack Unit Failover.............................................................................................................. 277

Synchronization between Management and Standby Units..................................................................................278

Forcing a Stack Unit Failover..................................................................................................................................... 278

Disabling Auto-Reboot................................................................................................................................................ 278

Pre-Configuring a Stack Unit Slot...................................................................................................................................279

Removing a Provisioned Logical Stack Unit...................................................................................................................279

Hitless Behavior................................................................................................................................................................. 279

Graceful Restart................................................................................................................................................................280

Contents

9

Software Resiliency.......................................................................................................................................................... 280

Software Component Health Monitoring.................................................................................................................280

System Health Monitoring......................................................................................................................................... 280

Failure and Event Logging..........................................................................................................................................280

Hot-Lock Behavior.............................................................................................................................................................281

18 Internet Group Management Protocol (IGMP)........................................................................... 282

IGMP Protocol Overview................................................................................................................................................. 282

IGMP Version 2............................................................................................................................................................282

IGMP Version 3............................................................................................................................................................283

Configure IGMP.................................................................................................................................................................286

Viewing IGMP Enabled Interfaces...................................................................................................................................286

Selecting an IGMP Version...............................................................................................................................................287

Viewing IGMP Groups...................................................................................................................................................... 288

Adjusting Timers................................................................................................................................................................288

Adjusting Query and Response Timers.....................................................................................................................288

Preventing a Host from Joining a Group........................................................................................................................289

Enabling IGMP Immediate-Leave.....................................................................................................................................291

IGMP Snooping..................................................................................................................................................................292

Configuring IGMP Snooping...................................................................................................................................... 292

Removing a Group-Port Association........................................................................................................................ 292

Disabling Multicast Flooding.......................................................................................................................................293

Specifying a Port as Connected to a Multicast Router..........................................................................................293

Configuring the Switch as Querier............................................................................................................................293

Fast Convergence after MSTP Topology Changes......................................................................................................294

Egress Interface Selection (EIS) for HTTP and IGMP Applications...........................................................................294

Designating a Multicast Router Interface...................................................................................................................... 300

19 Interfaces............................................................................................................................... 301

Interface Types..................................................................................................................................................................302

Optional Modules.............................................................................................................................................................. 302

View Basic Interface Information.................................................................................................................................... 302

Resetting an Interface to its Factory Default State..................................................................................................... 304

Enabling Energy Efficient Ethernet.................................................................................................................................304

View EEE Information.......................................................................................................................................................304

Clear EEE Counters.......................................................................................................................................................... 308

Enabling a Physical Interface...........................................................................................................................................309

Physical Interfaces............................................................................................................................................................309

Configuration Task List for Physical Interfaces.......................................................................................................309

Overview of Layer Modes...........................................................................................................................................310

Configuring Layer 2 (Data Link) Mode......................................................................................................................310

Configuring Layer 2 (Interface) Mode...................................................................................................................... 310

Configuring Layer 3 (Network) Mode........................................................................................................................311

Configuring Layer 3 (Interface) Mode....................................................................................................................... 311

Automatic recovery of an Err-disabled interface...........................................................................................................312

Configuring an automatic recovery for an Err-disabled interface..........................................................................312

Egress Interface Selection (EIS)......................................................................................................................................313

Configuring EIS.............................................................................................................................................................313

Management Interfaces....................................................................................................................................................313

10

Contents

Configuring Management Interfaces.........................................................................................................................313

Configuring a Management Interface on an Ethernet Port....................................................................................315

VLAN Interfaces.................................................................................................................................................................315

Loopback Interfaces.......................................................................................................................................................... 316

Null Interfaces.................................................................................................................................................................... 316

Configuring Port Delay...................................................................................................................................................... 316

Port Channel Interfaces.................................................................................................................................................... 317

Port Channel Definition and Standards..................................................................................................................... 317

Port Channel Benefits..................................................................................................................................................317

Port Channel Implementation..................................................................................................................................... 317

Interfaces in Port Channels.........................................................................................................................................318

Configuration Tasks for Port Channel Interfaces.................................................................................................... 318

Creating a Port Channel..............................................................................................................................................318

Adding a Physical Interface to a Port Channel.........................................................................................................318

Reassigning an Interface to a New Port Channel................................................................................................... 320

Configuring the Minimum Oper Up Links in a Port Channel...................................................................................321

Adding or Removing a Port Channel from a VLAN..................................................................................................321

Assigning an IP Address to a Port Channel..............................................................................................................322

Deleting or Disabling a Port Channel.........................................................................................................................322

Load Balancing Through Port Channels................................................................................................................... 322

Load-Balancing Method............................................................................................................................................. 322

Changing the Hash Algorithm....................................................................................................................................323

Bulk Configuration.............................................................................................................................................................324

Interface Range........................................................................................................................................................... 324

Bulk Configuration Examples..................................................................................................................................... 324

Defining Interface Range Macros................................................................................................................................... 325

Define the Interface Range........................................................................................................................................326

Choosing an Interface-Range Macro........................................................................................................................326

Monitoring and Maintaining Interfaces...........................................................................................................................326

Maintenance Using TDR.............................................................................................................................................327

Link Dampening................................................................................................................................................................. 327

Enabling Link Dampening............................................................................................................................................330

Link Bundle Monitoring......................................................................................................................................................331

Using Ethernet Pause Frames for Flow Control............................................................................................................ 331

Enabling Pause Frames...............................................................................................................................................332

Configure the MTU Size on an Interface....................................................................................................................... 332

Port-Pipes.......................................................................................................................................................................... 333

Auto-Negotiation on Ethernet Interfaces...................................................................................................................... 333

Setting the Speed of Ethernet Interfaces................................................................................................................333

Set Auto-Negotiation Options...................................................................................................................................335

Provisioning Combo Ports................................................................................................................................................336

View Advanced Interface Information............................................................................................................................336

Configuring the Interface Sampling Size.................................................................................................................. 337

Configuring the Traffic Sampling Size Globally............................................................................................................. 338

Dynamic Counters.............................................................................................................................................................339

Clearing Interface Counters.......................................................................................................................................339

20 Internet Protocol Security (IPSec)........................................................................................... 341

Configuring IPSec ............................................................................................................................................................. 341

Contents

11

21 IPv4 Routing........................................................................................................................... 343

IP Addresses...................................................................................................................................................................... 344

Configuration Tasks for IP Addresses............................................................................................................................ 344

Assigning IP Addresses to an Interface.......................................................................................................................... 344

Configuring Static Routes................................................................................................................................................345

Adding description for IPv4 and IPv6 static routes................................................................................................ 346

Configure Static Routes for the Management Interface.............................................................................................346

IPv4 Path MTU Discovery Overview..............................................................................................................................347

Using the Configured Source IP Address in ICMP Messages..................................................................................... 347

Configuring the Duration to Establish a TCP Connection............................................................................................348

Enabling Directed Broadcast............................................................................................................................................348

Resolution of Host Names............................................................................................................................................... 348

Enabling Dynamic Resolution of Host Names................................................................................................................349

Specifying the Local System Domain and a List of Domains.......................................................................................349

Configuring DNS with Traceroute.................................................................................................................................. 349

ARP.....................................................................................................................................................................................350

Configuration Tasks for ARP...........................................................................................................................................350

Configuring Static ARP Entries....................................................................................................................................... 350

Enabling Proxy ARP...........................................................................................................................................................351

Clearing ARP Cache.......................................................................................................................................................... 351

ARP Learning via Gratuitous ARP....................................................................................................................................351

Enabling ARP Learning via Gratuitous ARP................................................................................................................... 352

ARP Learning via ARP Request.......................................................................................................................................352

Configuring ARP Retries.................................................................................................................................................. 353

ICMP...................................................................................................................................................................................353

Configuration Tasks for ICMP.........................................................................................................................................353

Enabling ICMP Unreachable Messages..........................................................................................................................353

ICMP Redirects................................................................................................................................................................. 354

UDP Helper........................................................................................................................................................................ 354

Enabling UDP Helper........................................................................................................................................................ 355

Configuring a Broadcast Address................................................................................................................................... 355

Configurations Using UDP Helper...................................................................................................................................356

UDP Helper with Broadcast-All Addresses....................................................................................................................356

UDP Helper with Subnet Broadcast Addresses............................................................................................................ 357

UDP Helper with Configured Broadcast Addresses..................................................................................................... 357

UDP Helper with No Configured Broadcast Addresses...............................................................................................358

Troubleshooting UDP Helper...........................................................................................................................................358

22 IPv6 Routing.......................................................................................................................... 359

Protocol Overview............................................................................................................................................................ 359

Extended Address Space........................................................................................................................................... 359

Stateless Autoconfiguration.......................................................................................................................................359

IPv6 Headers............................................................................................................................................................... 360

IPv6 Header Fields...................................................................................................................................................... 360

Extension Header Fields............................................................................................................................................. 362

Addressing....................................................................................................................................................................363

Implementing IPv6 with Dell EMC Networking OS.......................................................................................................363

ICMPv6.............................................................................................................................................................................. 365

12

Contents

Path MTU discovery.........................................................................................................................................................365

IPv6 Neighbor Discovery..................................................................................................................................................366

IPv6 Neighbor Discovery of MTU Packets.............................................................................................................. 367

Configuration Task List for IPv6 RDNSS....................................................................................................................... 367

Configuring the IPv6 Recursive DNS Server........................................................................................................... 367

Debugging IPv6 RDNSS Information Sent to the Host .........................................................................................368

Displaying IPv6 RDNSS Information......................................................................................................................... 368

Secure Shell (SSH) Over an IPv6 Transport.................................................................................................................369

Configuration Tasks for IPv6...........................................................................................................................................369

Adjusting Your CAM-Profile.......................................................................................................................................369

Assigning an IPv6 Address to an Interface...............................................................................................................370

Assigning a Static IPv6 Route....................................................................................................................................370

Configuring Telnet with IPv6...................................................................................................................................... 371

SNMP over IPv6...........................................................................................................................................................371

Displaying IPv6 Information.........................................................................................................................................371

Displaying an IPv6 Interface Information..................................................................................................................372

Showing IPv6 Routes..................................................................................................................................................372

Showing the Running-Configuration for an Interface.............................................................................................373

Clearing IPv6 Routes...................................................................................................................................................374

Disabling ND Entry Timeout....................................................................................................................................... 374

Configuring IPv6 RA Guard..............................................................................................................................................374

Configuring IPv6 RA Guard on an Interface.............................................................................................................376

Monitoring IPv6 RA Guard......................................................................................................................................... 376

23 iSCSI Optimization..................................................................................................................377

iSCSI Optimization Overview...........................................................................................................................................377

Monitoring iSCSI Traffic Flows..................................................................................................................................378

Application of Quality of Service to iSCSI Traffic Flows........................................................................................ 378

Information Monitored in iSCSI Traffic Flows..........................................................................................................379

Detection and Auto-Configuration for Dell EqualLogic Arrays.............................................................................. 379

Configuring Detection and Ports for Dell Compellent Arrays................................................................................380

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................. 380

Enable and Disable iSCSI Optimization.....................................................................................................................380

Default iSCSI Optimization Values...................................................................................................................................381

iSCSI Optimization Prerequisites..................................................................................................................................... 381

Configuring iSCSI Optimization........................................................................................................................................381

Displaying iSCSI Optimization Information.....................................................................................................................383

24 Intermediate System to Intermediate System........................................................................... 385

IS-IS Protocol Overview...................................................................................................................................................385

IS-IS Addressing................................................................................................................................................................ 385

Multi-Topology IS-IS.........................................................................................................................................................386

Transition Mode...........................................................................................................................................................386

Interface Support........................................................................................................................................................ 386

Adjacencies.................................................................................................................................................................. 386

Graceful Restart................................................................................................................................................................ 387

Timers............................................................................................................................................................................387

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

Configuration Information................................................................................................................................................ 388

Contents

13

Configuration Tasks for IS-IS.....................................................................................................................................388

Configuring the Distance of a Route........................................................................................................................ 395

Changing the IS-Type.................................................................................................................................................395

Redistributing IPv4 Routes.........................................................................................................................................397

Redistributing IPv6 Routes.........................................................................................................................................397

Configuring Authentication Passwords.................................................................................................................... 398

Setting the Overload Bit.............................................................................................................................................398

Debugging IS-IS...........................................................................................................................................................399

IS-IS Metric Styles............................................................................................................................................................ 400

Configure Metric Values...................................................................................................................................................400

Maximum Values in the Routing Table..................................................................................................................... 400

Change the IS-IS Metric Style in One Level Only................................................................................................... 400

Leaks from One Level to Another............................................................................................................................. 402

Sample Configurations......................................................................................................................................................402

25 Link Aggregation Control Protocol (LACP)............................................................................... 405

Introduction to Dynamic LAGs and LACP......................................................................................................................405

Important Points to Remember.................................................................................................................................405

LACP Modes................................................................................................................................................................405

Configuring LACP Commands...................................................................................................................................406

LACP Configuration Tasks...............................................................................................................................................406

Creating a LAG............................................................................................................................................................ 406

Configuring the LAG Interfaces as Dynamic............................................................................................................407

Setting the LACP Long Timeout............................................................................................................................... 407

Monitoring and Debugging LACP..............................................................................................................................408

Shared LAG State Tracking............................................................................................................................................. 408

Configuring Shared LAG State Tracking..................................................................................................................409

Important Points about Shared LAG State Tracking...............................................................................................410

LACP Basic Configuration Example.................................................................................................................................410

Configure a LAG on ALPHA........................................................................................................................................410

26 Layer 2................................................................................................................................... 418

Manage the MAC Address Table.....................................................................................................................................418

Clearing the MAC Address Table............................................................................................................................... 418

Setting the Aging Time for Dynamic Entries............................................................................................................ 418

Configuring a Static MAC Address............................................................................................................................418

Displaying the MAC Address Table............................................................................................................................419

MAC Learning Limit........................................................................................................................................................... 419

Setting the MAC Learning Limit.................................................................................................................................419

mac learning-limit Dynamic........................................................................................................................................ 420

mac learning-limit mac-address-sticky.....................................................................................................................420

mac learning-limit station-move................................................................................................................................ 420

mac learning-limit no-station-move.......................................................................................................................... 420

Learning Limit Violation Actions................................................................................................................................. 421

Setting Station Move Violation Actions.................................................................................................................... 421

Recovering from Learning Limit and Station Move Violations............................................................................... 421

Disabling MAC Address Learning on the System....................................................................................................422

Enabling port security................................................................................................................................................. 422

NIC Teaming...................................................................................................................................................................... 422

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Contents

Configure Redundant Pairs..............................................................................................................................................423

Far-End Failure Detection................................................................................................................................................ 426

FEFD State Changes.................................................................................................................................................. 426

Configuring FEFD........................................................................................................................................................ 427

Enabling FEFD on an Interface.................................................................................................................................. 428

Debugging FEFD..........................................................................................................................................................428

27 Link Layer Discovery Protocol (LLDP).......................................................................................430

802.1AB (LLDP) Overview...............................................................................................................................................430

Protocol Data Units.....................................................................................................................................................430

Optional TLVs..................................................................................................................................................................... 431

Management TLVs.......................................................................................................................................................431

TIA-1057 (LLDP-MED) Overview................................................................................................................................... 432

TIA Organizationally Specific TLVs............................................................................................................................433

Configure LLDP................................................................................................................................................................. 436

CONFIGURATION versus INTERFACE Configurations............................................................................................... 436

Enabling LLDP....................................................................................................................................................................437

Disabling and Undoing LLDP...................................................................................................................................... 437

Enabling LLDP on Management Ports............................................................................................................................437

Disabling and Undoing LLDP on Management Ports..............................................................................................438

Advertising TLVs............................................................................................................................................................... 438

Storing and Viewing Unrecognized LLDP TLVs............................................................................................................439

Viewing the LLDP Configuration.....................................................................................................................................440

Viewing Information Advertised by Adjacent LLDP Neighbors...................................................................................440

Examples of Viewing Information Advertised by Neighbors..................................................................................440

Configuring LLDPDU Intervals.........................................................................................................................................443

Configuring LLDP Notification Interval...........................................................................................................................443

Configuring Transmit and Receive Mode.......................................................................................................................444

Configuring the Time to Live Value.................................................................................................................................444

Debugging LLDP................................................................................................................................................................445

Relevant Management Objects.......................................................................................................................................446

28 Microsoft Network Load Balancing........................................................................................... 451

Configuring a Switch for NLB ........................................................................................................................................ 452

Enabling a Switch for Multicast NLB........................................................................................................................452

29 Multicast Source Discovery Protocol (MSDP)........................................................................... 454

Anycast RP........................................................................................................................................................................ 455

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

Configure Multicast Source Discovery Protocol...........................................................................................................456

Related Configuration Tasks......................................................................................................................................456

Enable MSDP.....................................................................................................................................................................460

Manage the Source-Active Cache.................................................................................................................................. 461

Viewing the Source-Active Cache.............................................................................................................................461

Limiting the Source-Active Cache.............................................................................................................................461

Clearing the Source-Active Cache............................................................................................................................ 461

Enabling the Rejected Source-Active Cache...........................................................................................................462

Accept Source-Active Messages that Fail the RFP Check.........................................................................................462

Specifying Source-Active Messages.............................................................................................................................. 464

Contents

15

Limiting the Source-Active Messages from a Peer......................................................................................................465

Preventing MSDP from Caching a Local Source..........................................................................................................465

Preventing MSDP from Caching a Remote Source..................................................................................................... 465

Preventing MSDP from Advertising a Local Source.................................................................................................... 466

Logging Changes in Peership States.............................................................................................................................. 467

Terminating a Peership.....................................................................................................................................................467

Clearing Peer Statistics.................................................................................................................................................... 467

Debugging MSDP..............................................................................................................................................................468

MSDP with Anycast RP................................................................................................................................................... 468

Configuring Anycast RP................................................................................................................................................... 469

Reducing Source-Active Message Flooding............................................................................................................ 470

Specifying the RP Address Used in SA Messages..................................................................................................470

MSDP Sample Configurations......................................................................................................................................... 472

30 Multicast Listener Discovery Protocol...................................................................................... 475

MLD timers.........................................................................................................................................................................478

Reducing Host Response Burstiness........................................................................................................................ 478

Configuring MLD Version................................................................................................................................................. 478

Clearing MLD groups........................................................................................................................................................ 479

Debugging MLD.................................................................................................................................................................479

Explicit Tracking.................................................................................................................................................................479

Reducing Leave Latency.................................................................................................................................................. 479

Displaying MLD groups table............................................................................................................................................479

Displaying MLD Interfaces............................................................................................................................................... 480

31 Multiple Spanning Tree Protocol (MSTP)...................................................................................481

Spanning Tree Variations................................................................................................................................................. 482

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

Configure Multiple Spanning Tree Protocol...................................................................................................................482

Related Configuration Tasks......................................................................................................................................482

Enable Multiple Spanning Tree Globally..........................................................................................................................483

Adding and Removing Interfaces.................................................................................................................................... 483

Creating Multiple Spanning Tree Instances................................................................................................................... 483

Influencing MSTP Root Selection................................................................................................................................... 484

Interoperate with Non-Dell Bridges................................................................................................................................ 485

Changing the Region Name or Revision.........................................................................................................................485

Modifying Global Parameters.......................................................................................................................................... 485

Modifying the Interface Parameters...............................................................................................................................486

Setting STP path cost as constant.................................................................................................................................487

Configuring an EdgePort..................................................................................................................................................487

Flush MAC Addresses after a Topology Change.......................................................................................................... 488

MSTP Sample Configurations......................................................................................................................................... 488

Debugging and Verifying MSTP Configurations............................................................................................................492

32 Multicast Features..................................................................................................................494

Enabling IP Multicast........................................................................................................................................................ 494

Implementation Information.............................................................................................................................................494

Multicast Policies...............................................................................................................................................................495

IPv4 Multicast Policies................................................................................................................................................495

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Contents

Understanding Multicast Traceroute (mtrace)........................................................................................................501

Printing Multicast Traceroute (mtrace) Paths.........................................................................................................501

Supported Error Codes.............................................................................................................................................. 503

mtrace Scenarios.........................................................................................................................................................503

33 Multicast Listener Discovery Protocol...................................................................................... 509

MLD timers......................................................................................................................................................................... 512

Reducing Host Response Burstiness.........................................................................................................................512

Clearing MLD groups.........................................................................................................................................................512

Debugging MLD................................................................................................................................................................. 513

Explicit Tracking................................................................................................................................................................. 513

Reducing Leave Latency...................................................................................................................................................513

Displaying MLD groups table............................................................................................................................................ 513

Displaying MLD Interfaces................................................................................................................................................ 513

MLD Snooping....................................................................................................................................................................514

Enable MLD Snooping................................................................................................................................................. 514

Disable MLD Snooping.................................................................................................................................................514

Configure the switch as a querier..............................................................................................................................514

Specify port as connected to multicast router........................................................................................................ 515

Enable Snooping Explicit Tracking............................................................................................................................. 515

Display the MLD Snooping Table............................................................................................................................... 515

34 Object Tracking...................................................................................................................... 516

Object Tracking Overview................................................................................................................................................ 516

Track Layer 2 Interfaces............................................................................................................................................. 517

Track Layer 3 Interfaces............................................................................................................................................. 517

Track IPv4 and IPv6 Routes....................................................................................................................................... 517

Set Tracking Delays..................................................................................................................................................... 518

VRRP Object Tracking................................................................................................................................................ 519

Object Tracking Configuration......................................................................................................................................... 519

Tracking a Layer 2 Interface.......................................................................................................................................519

Tracking a Layer 3 Interface...................................................................................................................................... 520

Track an IPv4/IPv6 Route.......................................................................................................................................... 521

Displaying Tracked Objects..............................................................................................................................................524

35 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................... 526

Protocol Overview............................................................................................................................................................ 526

Autonomous System (AS) Areas.............................................................................................................................. 526

Area Types....................................................................................................................................................................527

Networks and Neighbors............................................................................................................................................528

Router Types............................................................................................................................................................... 528

Designated and Backup Designated Routers.......................................................................................................... 529

Link-State Advertisements (LSAs)...........................................................................................................................529

Router Priority and Cost.............................................................................................................................................530

OSPF with Dell EMC Networking OS............................................................................................................................. 531

Graceful Restart...........................................................................................................................................................531

Fast Convergence (OSPFv2, IPv4 Only)................................................................................................................. 532

Multi-Process OSPFv2 with VRF..............................................................................................................................532

OSPF ACK Packing.....................................................................................................................................................533

Contents

17

Setting OSPF Adjacency with Cisco Routers..........................................................................................................533

Configuration Information................................................................................................................................................ 533

Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................... 534

OSPFv3 NSSA...................................................................................................................................................................545

Configuration Task List for OSPFv3 (OSPF for IPv6).................................................................................................546

Enabling IPv6 Unicast Routing.................................................................................................................................. 546

Applying cost for OSPFv3..........................................................................................................................................547

Assigning IPv6 Addresses on an Interface............................................................................................................... 547

Assigning Area ID on an Interface............................................................................................................................. 547

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................... 547

Assigning OSPFv3 Process ID and Router ID to a VRF......................................................................................... 548

Configuring Stub Areas.............................................................................................................................................. 548

Configuring Passive-Interface................................................................................................................................... 548

Redistributing Routes................................................................................................................................................. 549

Configuring a Default Route...................................................................................................................................... 549

Enabling OSPFv3 Graceful Restart...........................................................................................................................549

OSPFv3 Authentication Using IPsec.........................................................................................................................551

Troubleshooting OSPFv3........................................................................................................................................... 557

MIB Support for OSPFv3.................................................................................................................................................557

Viewing the OSPFv3 MIB.......................................................................................................................................... 558

36 Policy-based Routing (PBR)....................................................................................................559

Overview............................................................................................................................................................................559

Implementing PBR............................................................................................................................................................ 560

Configuration Task List for Policy-based Routing........................................................................................................ 560

Create a Redirect List..................................................................................................................................................561

Create a Rule for a Redirect-list.................................................................................................................................561

Apply a Redirect-list to an Interface using a Redirect-group................................................................................ 562

Sample Configuration....................................................................................................................................................... 564

37 PIM Sparse-Mode (PIM-SM)................................................................................................... 568

Implementation Information.............................................................................................................................................568

Protocol Overview............................................................................................................................................................ 568

Requesting Multicast Traffic..................................................................................................................................... 568

Refuse Multicast Traffic.............................................................................................................................................568

Send Multicast Traffic................................................................................................................................................ 569

Configuring PIM-SM.........................................................................................................................................................569

Related Configuration Tasks......................................................................................................................................569

Enable PIM-SM................................................................................................................................................................. 569

Configuring S,G Expiry Timers......................................................................................................................................... 571

Configuring a Static Rendezvous Point..........................................................................................................................572

Overriding Bootstrap Router Updates......................................................................................................................572

Configuring a Designated Router.................................................................................................................................... 573

Creating Multicast Boundaries and Domains.................................................................................................................574

Electing an RP using the BSR Mechanism.....................................................................................................................574

38 PIM Source-Specific Mode (PIM-SSM).................................................................................... 576

Implementation Information.............................................................................................................................................576

Configure PIM-SSM......................................................................................................................................................... 576

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Contents

Enabling PIM-SSM............................................................................................................................................................ 577

Use PIM-SSM with IGMP Version 2 Hosts....................................................................................................................577

Electing an RP using the BSR Mechanism.....................................................................................................................578

Enabling RP to Server Specific Multicast Groups...................................................................................................579

39 Power over Ethernet (PoE)......................................................................................................581

Configuring PoE or PoE+..................................................................................................................................................581

Enable PoE/PoE+........................................................................................................................................................ 581

Upgrading the PoE Controller....................................................................................................................................582

Manage Ports using Power Priority and Power Budget.................................................................................... 583

Determine the Power Priority....................................................................................................................................583

Manage Inline Power...................................................................................................................................................584

Set the Threshold Limit for the PoE Power Budget...............................................................................................584

Manage Power Priorities............................................................................................................................................ 584

Power Allocation to Ports.......................................................................................................................................... 585

Power Allocation to Additional Ports........................................................................................................................ 585

Manage Legacy Devices.................................................................................................................................................. 585

Suspend Power Delivery on a Port.................................................................................................................................585

Restore Power Delivery on a Port.................................................................................................................................. 586

Display the Power Details.................................................................................................................................................586

40 Port Monitoring......................................................................................................................588

Important Points to Remember.......................................................................................................................................588

Port Monitoring................................................................................................................................................................. 588

Configuring Port Monitoring............................................................................................................................................590

Configuring Monitor Multicast Queue............................................................................................................................592

Enabling Flow-Based Monitoring.................................................................................................................................... 592

Remote Port Mirroring..................................................................................................................................................... 593

Remote Port Mirroring Example................................................................................................................................594

Configuring Remote Port Mirroring.......................................................................................................................... 594

Displaying Remote-Port Mirroring Configurations..................................................................................................596

Configuration procedure for Remote Port Mirroring..............................................................................................596

Encapsulated Remote Port Monitoring..........................................................................................................................600

ERPM Behavior on a typical Dell EMC Networking OS ..............................................................................................602

Port Monitoring on VLT................................................................................................................................................... 603

41 Private VLANs (PVLAN)...........................................................................................................606

Private VLAN Concepts...................................................................................................................................................606

Using the Private VLAN Commands...............................................................................................................................607

Configuration Task List.................................................................................................................................................... 608

Creating PVLAN ports................................................................................................................................................608

Creating a Primary VLAN........................................................................................................................................... 608

Creating a Community VLAN.................................................................................................................................... 609

Creating an Isolated VLAN..........................................................................................................................................610

Private VLAN Configuration Example.............................................................................................................................. 611

Inspecting the Private VLAN Configuration................................................................................................................... 612

42 Per-VLAN Spanning Tree Plus (PVST+).................................................................................... 614

Protocol Overview............................................................................................................................................................. 614

Contents

19

Implementation Information..............................................................................................................................................615

Configure Per-VLAN Spanning Tree Plus.......................................................................................................................615

Enabling PVST+................................................................................................................................................................. 615

Disabling PVST+.................................................................................................................................................................615

Influencing PVST+ Root Selection.................................................................................................................................. 616

Modifying Global PVST+ Parameters..............................................................................................................................617

Modifying Interface PVST+ Parameters.........................................................................................................................618

Configuring an EdgePort...................................................................................................................................................618

PVST+ in Multi-Vendor Networks...................................................................................................................................619

Enabling PVST+ Extend System ID.................................................................................................................................619

PVST+ Sample Configurations........................................................................................................................................620

43 Quality of Service (QoS)......................................................................................................... 622

Implementation Information.............................................................................................................................................624

Port-Based QoS Configurations......................................................................................................................................624

Setting dot1p Priorities for Incoming Traffic............................................................................................................624

Honoring dot1p Priorities on Ingress Traffic............................................................................................................ 625

Configuring Port-Based Rate Policing......................................................................................................................625

Configuring Port-Based Rate Shaping..................................................................................................................... 626

Policy-Based QoS Configurations...................................................................................................................................626

Classify Traffic............................................................................................................................................................. 627

Create a QoS Policy....................................................................................................................................................629

Create Policy Maps......................................................................................................................................................631

DSCP Color Maps............................................................................................................................................................. 634

Creating a DSCP Color Map...................................................................................................................................... 634

Displaying DSCP Color Maps.....................................................................................................................................635

Displaying a DSCP Color Policy Configuration ....................................................................................................... 635

Enabling QoS Rate Adjustment.......................................................................................................................................635

Enabling Strict-Priority Queueing....................................................................................................................................636

Weighted Random Early Detection.................................................................................................................................636

Creating WRED Profiles..............................................................................................................................................637

Applying a WRED Profile to Traffic...........................................................................................................................637

Displaying Default and Configured WRED Profiles................................................................................................. 638

Displaying WRED Drop Statistics.............................................................................................................................. 638

Displaying egress–queue Statistics...........................................................................................................................638

Pre-Calculating Available QoS CAM Space................................................................................................................... 639

Configuring Weights and ECN for WRED .....................................................................................................................639

Configuring WRED and ECN Attributes..........................................................................................................................641

Guidelines for Configuring ECN for Classifying and Color-Marking Packets.............................................................641

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.................................... 642

Classifying Incoming Packets Using ECN and Color-Marking...............................................................................642

Sample configuration to mark non-ecn packets as “yellow” with single traffic class........................................ 644

Applying Layer 2 Match Criteria on a Layer 3 Interface.............................................................................................. 645

Applying DSCP and VLAN Match Criteria on a Service Queue.................................................................................. 645

Classifying Incoming Packets Using ECN and Color-Marking.....................................................................................646

Guidelines for Configuring ECN for Classifying and Color-Marking Packets............................................................ 647

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.......................................... 648

Sample configuration to mark non-ecn packets as “yellow” with single traffic class.............................................. 648

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Dell Networking S3100 Series User guide

Dell Networking S3100 Series User guide

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