Dell 210-AEDM User Manual

Dell Configuration Guide for the S3048–ON System

9.9(0.0)

Notes, cautions, and warnings

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

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

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

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2015 - 09

Rev. A00

Contents

1 About this Guide................................................................................................. 34

Audience..............................................................................................................................................34

Conventions........................................................................................................................................ 34

Related Documents............................................................................................................................ 34

2 Configuration Fundamentals........................................................................... 35

Accessing the Command Line............................................................................................................35

CLI Modes............................................................................................................................................35

Navigating CLI Modes................................................................................................................... 37

The do Command...............................................................................................................................40

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

Obtaining Help.................................................................................................................................... 41

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

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

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

Multiple Users in Configuration Mode............................................................................................... 45

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

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

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

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

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

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

Default Configuration......................................................................................................................... 49

Configuring a Host Name...................................................................................................................49

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

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

Configure the Management Port IP Address............................................................................... 49

Configure a Management Route..................................................................................................50

Configuring a Username and Password.......................................................................................50

Configuring the Enable Password......................................................................................................50

Configuration File Management......................................................................................................... 51

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

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

Save the Running-Configuration..................................................................................................53

Configure the Overload Bit for a Startup Scenario......................................................................54

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

Compressing Configuration Files................................................................................................. 55

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

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

View Command History..................................................................................................................... 60

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

Using Hashes to Verify Software Images Before Installation............................................................60

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

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

Configuring Privilege Levels............................................................................................................... 63

Creating a Custom Privilege Level................................................................................................63

Removing a Command from EXEC Mode................................................................................... 63

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

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

Allowing Access to Different Modes............................................................................................ 64

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

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

Configuring Logging...........................................................................................................................66

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

Configuring Logging Format ...................................................................................................... 69

Display the Logging Buffer and the Logging Configuration....................................................... 69

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

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

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

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

Configuring Login Activity Tracking..............................................................................................71

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

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

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

Configuring Concurrent Session Limit......................................................................................... 73

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

Log Messages in the Internal Buffer................................................................................................... 74

Configuration Task List for System Log Management.................................................................75

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

Sending System Messages to a Syslog Server....................................................................................75

Configuring a UNIX System as a Syslog Server............................................................................ 75

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

Display the Logging Buffer and the Logging Configuration..............................................................77

Configuring a UNIX Logging Facility Level......................................................................................... 77

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

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

File Transfer Services.......................................................................................................................... 80

Configuration Task List for File Transfer Services........................................................................80

Enabling the FTP Server................................................................................................................80

Configuring FTP Server Parameters............................................................................................. 80

Configuring FTP Client Parameters.............................................................................................. 81

Terminal Lines..................................................................................................................................... 82

Denying and Permitting Access to a Terminal Line.....................................................................82

Configuring Login Authentication for Terminal Lines................................................................. 83

Setting Timeout for EXEC Privilege Mode......................................................................................... 84

Using Telnet to get to Another Network Device............................................................................... 85

Lock CONFIGURATION Mode............................................................................................................85

Viewing the Configuration Lock Status........................................................................................86

5 802.1ag................................................................................................................. 87

Ethernet CFM.......................................................................................................................................87

Maintenance Domains........................................................................................................................88

Maintenance Points............................................................................................................................ 88

Maintenance End Points.....................................................................................................................89

Implementation Information..............................................................................................................90

Configuring the CFM.......................................................................................................................... 90

Related Configuration Tasks.........................................................................................................90

Enable Ethernet CFM.......................................................................................................................... 90

Creating a Maintenance Domain....................................................................................................... 90

Creating a Maintenance Association.................................................................................................. 91

Create Maintenance Points.................................................................................................................91

Creating a Maintenance End Point............................................................................................... 91

Creating a Maintenance Intermediate Point................................................................................ 92

Displaying the MP Databases........................................................................................................93

Continuity Check Messages............................................................................................................... 93

Enabling CCM................................................................................................................................94

Enabling Cross-Checking............................................................................................................. 95

Sending Loopback Messages and Responses....................................................................................95

Sending Linktrace Messages and Responses.....................................................................................95

Caching Link Trace....................................................................................................................... 96

Enabling CFM SNMP Traps................................................................................................................. 97

Displaying Ethernet CFM Statistics.....................................................................................................98

6 802.1X.................................................................................................................100

Port-Authentication Process.............................................................................................................101

EAP over RADIUS.........................................................................................................................103

Configuring 802.1X........................................................................................................................... 103

Related Configuration Tasks.......................................................................................................103

Important Points to Remember....................................................................................................... 104

Enabling 802.1X.................................................................................................................................104

Configuring Request Identity Re-Transmissions.............................................................................106

Configuring a Quiet Period after a Failed Authentication......................................................... 106

Forcibly Authorizing or Unauthorizing a Port.................................................................................. 107

Re-Authenticating a Port..................................................................................................................108

Configuring Timeouts.......................................................................................................................109

Configuring Dynamic VLAN Assignment with Port Authentication................................................ 110

Guest and Authentication-Fail VLANs...............................................................................................111

Configuring a Guest VLAN...........................................................................................................112

Configuring an Authentication-Fail VLAN.................................................................................. 112

7 Access Control List (ACL) VLAN Groups and Content Addressable

Memory (CAM)......................................................................................................114

Optimizing CAM Utilization During the Attachment of ACLs to VLANs..........................................114

Guidelines for Configuring ACL VLAN Groups.................................................................................115

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters.........................116

Configuring ACL VLAN Groups................................................................................................... 116

Configuring FP Blocks for VLAN Parameters..............................................................................117

Viewing CAM Usage...........................................................................................................................117

Allocating FP Blocks for VLAN Processes.........................................................................................119

8 Access Control Lists (ACLs)............................................................................ 120

IP Access Control Lists (ACLs).......................................................................................................... 120

CAM Usage...................................................................................................................................121

Implementing ACLs on Dell Networking OS..............................................................................122

Important Points to Remember........................................................................................................123

Configuration Task List for Route Maps..................................................................................... 124

Configuring Match Routes..........................................................................................................126

Configuring Set Conditions.........................................................................................................127

Configure a Route Map for Route Redistribution...................................................................... 128

Configure a Route Map for Route Tagging................................................................................129

Continue Clause..........................................................................................................................129

IP Fragment Handling....................................................................................................................... 130

IP Fragments ACL Examples....................................................................................................... 130

Layer 4 ACL Rules Examples........................................................................................................131

Configure a Standard IP ACL............................................................................................................ 132

Configuring a Standard IP ACL Filter.......................................................................................... 133

Configure an Extended IP ACL......................................................................................................... 134

Configuring Filters with a Sequence Number............................................................................134

Configuring Filters Without a Sequence Number......................................................................135

Configure Layer 2 and Layer 3 ACLs................................................................................................ 136

Assign an IP ACL to an Interface.......................................................................................................137

Applying an IP ACL............................................................................................................................ 137

Counting ACL Hits.......................................................................................................................138

Configure Ingress ACLs.....................................................................................................................138

Configure Egress ACLs......................................................................................................................139

Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 140

IP Prefix Lists......................................................................................................................................140

Implementation Information.......................................................................................................141

Configuration Task List for Prefix Lists........................................................................................141

ACL Resequencing............................................................................................................................ 145

Resequencing an ACL or Prefix List............................................................................................145

Route Maps........................................................................................................................................147

Implementation Information.......................................................................................................147

Logging of ACL Processes................................................................................................................ 147

Guidelines for Configuring ACL Logging................................................................................... 148

Configuring ACL Logging........................................................................................................... 149

Flow-Based Monitoring Support for ACLs.......................................................................................149

Behavior of Flow-Based Monitoring...........................................................................................150

Enabling Flow-Based Monitoring................................................................................................151

9 Bidirectional Forwarding Detection (BFD)...................................................153

How BFD Works................................................................................................................................ 153

BFD Packet Format......................................................................................................................154

BFD Sessions................................................................................................................................156

BFD Three-Way Handshake........................................................................................................156

Session State Changes.................................................................................................................157

Important Points to Remember........................................................................................................158

Configure BFD...................................................................................................................................158

Configure BFD for Physical Ports............................................................................................... 159

Configure BFD for Static Routes.................................................................................................162

Configure BFD for OSPF............................................................................................................. 164

Configure BFD for OSPFv3..........................................................................................................167

Configure BFD for IS-IS...............................................................................................................168

Configure BFD for BGP................................................................................................................171

Configure BFD for VRRP..............................................................................................................177

Configuring Protocol Liveness................................................................................................... 180

Troubleshooting BFD...................................................................................................................181

10 Border Gateway Protocol IPv4 (BGPv4).....................................................183

Autonomous Systems (AS)................................................................................................................183

Sessions and Peers............................................................................................................................185

Establish a Session.......................................................................................................................186

Route Reflectors................................................................................................................................186

BGP Attributes................................................................................................................................... 187

Best Path Selection Criteria........................................................................................................ 188

Weight..........................................................................................................................................190

Local Preference......................................................................................................................... 190

Multi-Exit Discriminators (MEDs)................................................................................................ 191

Origin........................................................................................................................................... 192

AS Path.........................................................................................................................................193

Next Hop......................................................................................................................................193

Multiprotocol BGP............................................................................................................................ 194

Implement BGP with Dell Networking OS.......................................................................................194

Additional Path (Add-Path) Support........................................................................................... 194

Advertise IGP Cost as MED for Redistributed Routes................................................................ 194

Ignore Router-ID in Best-Path Calculation................................................................................195

Four-Byte AS Numbers............................................................................................................... 195

AS4 Number Representation...................................................................................................... 196

AS Number Migration.................................................................................................................. 197

BGP4 Management Information Base (MIB).............................................................................. 199

Important Points to Remember..................................................................................................199

Configuration Information...............................................................................................................200

BGP Configuration........................................................................................................................... 200

Enabling BGP...............................................................................................................................201

Configuring AS4 Number Representations............................................................................... 205

Configuring Peer Groups............................................................................................................207

Configuring BGP Fast Fall-Over.................................................................................................209

Configuring Passive Peering........................................................................................................211

Maintaining Existing AS Numbers During an AS Migration........................................................ 212

Allowing an AS Number to Appear in its Own AS Path..............................................................213

Enabling Graceful Restart............................................................................................................214

Enabling Neighbor Graceful Restart........................................................................................... 215

Filtering on an AS-Path Attribute................................................................................................ 215

Regular Expressions as Filters......................................................................................................217

Redistributing Routes.................................................................................................................. 218

Enabling Additional Paths............................................................................................................219

Configuring IP Community Lists.................................................................................................219

Configuring an IP Extended Community List.............................................................................221

Filtering Routes with Community Lists...................................................................................... 222

Manipulating the COMMUNITY Attribute...................................................................................222

Changing MED Attributes........................................................................................................... 224

Changing the LOCAL_PREFERENCE Attribute.......................................................................... 224

Changing the NEXT_HOP Attribute........................................................................................... 225

Changing the WEIGHT Attribute................................................................................................ 226

Enabling Multipath...................................................................................................................... 226

Filtering BGP Routes................................................................................................................... 226

Filtering BGP Routes Using Route Maps.................................................................................... 228

Filtering BGP Routes Using AS-PATH Information....................................................................229

Configuring BGP Route Reflectors............................................................................................ 229

Aggregating Routes.................................................................................................................... 230

Configuring BGP Confederations...............................................................................................231

Enabling Route Flap Dampening................................................................................................ 231

Changing BGP Timers.................................................................................................................234

Enabling BGP Neighbor Soft-Reconfiguration..........................................................................234

Route Map Continue...................................................................................................................236

Enabling MBGP Configurations........................................................................................................236

BGP Regular Expression Optimization.............................................................................................237

Debugging BGP.................................................................................................................................237

Storing Last and Bad PDUs......................................................................................................... 238

Capturing PDUs...........................................................................................................................239

PDU Counters.............................................................................................................................240

Sample Configurations.....................................................................................................................240

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

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

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

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

View CAM Usage............................................................................................................................... 251

CAM Optimization............................................................................................................................ 252

Troubleshoot CAM Profiling.............................................................................................................252

CAM Profile Mismatches.............................................................................................................252

QoS CAM Region Limitation.......................................................................................................252

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

Configure Control Plane Policing.................................................................................................... 255

Configuring CoPP for Protocols................................................................................................ 256

Configuring CoPP for CPU Queues...........................................................................................258

CoPP for OSPFv3 Packets...........................................................................................................259

Configuring CoPP for OSPFv3....................................................................................................263

Displaying CoPP Configuration .................................................................................................264

13 Dynamic Host Configuration Protocol (DHCP)........................................266

DHCP Packet Format and Options.................................................................................................. 266

Assign an IP Address using DHCP....................................................................................................268

Implementation Information............................................................................................................269

Configure the System to be a DHCP Server....................................................................................269

Configuring the Server for Automatic Address Allocation........................................................ 270

Specifying a Default Gateway.....................................................................................................272

Configure a Method of Hostname Resolution...........................................................................272

Using DNS for Address Resolution............................................................................................. 272

Using NetBIOS WINS for Address Resolution............................................................................ 272

Creating Manual Binding Entries................................................................................................ 272

Debugging the DHCP Server...................................................................................................... 273

Using DHCP Clear Commands...................................................................................................273

Configure the System to be a Relay Agent...................................................................................... 273

Configure the System to be a DHCP Client.....................................................................................275

Configuring the DHCP Client System........................................................................................ 276

DHCP Client on a Management Interface..................................................................................277

DHCP Client Operation with Other Features.............................................................................278

Configure the System for User Port Stacking (Option 230)............................................................279

Configure Secure DHCP...................................................................................................................279

Option 82.................................................................................................................................... 279

DHCP Snooping..........................................................................................................................280

Drop DHCP Packets on Snooped VLANs Only..........................................................................283

Dynamic ARP Inspection............................................................................................................ 284

Configuring Dynamic ARP Inspection........................................................................................285

Source Address Validation................................................................................................................286

Enabling IP Source Address Validation...................................................................................... 286

DHCP MAC Source Address Validation......................................................................................287

Enabling IP+MAC Source Address Validation............................................................................ 287

Viewing the Number of SAV Dropped Packets......................................................................... 288

Clearing the Number of SAV Dropped Packets.........................................................................288

14 Equal Cost Multi-Path (ECMP).....................................................................289

ECMP for Flow-Based Affinity..........................................................................................................289

Configuring the Hash Algorithm................................................................................................ 289

Enabling Deterministic ECMP Next Hop....................................................................................289

Configuring the Hash Algorithm Seed.......................................................................................290

Link Bundle Monitoring.................................................................................................................... 290

Managing ECMP Group Paths.....................................................................................................291

Creating an ECMP Group Bundle............................................................................................... 291

Modifying the ECMP Group Threshold......................................................................................292

15 FIPS Cryptography......................................................................................... 293

Configuration Tasks..........................................................................................................................293

Preparing the System........................................................................................................................293

Enabling FIPS Mode..........................................................................................................................294

Generating Host-Keys...................................................................................................................... 294

Monitoring FIPS Mode Status........................................................................................................... 295

Disabling FIPS Mode......................................................................................................................... 298

16 Force10 Resilient Ring Protocol (FRRP).....................................................299

Protocol Overview............................................................................................................................299

Ring Status.................................................................................................................................. 300

Multiple FRRP Rings.....................................................................................................................301

Important FRRP Points................................................................................................................302

Important FRRP Concepts..........................................................................................................303

Implementing FRRP..........................................................................................................................304

FRRP Configuration.......................................................................................................................... 304

Creating the FRRP Group........................................................................................................... 305

Configuring the Control VLAN................................................................................................... 305

Configuring and Adding the Member VLANs............................................................................ 306

Setting the FRRP Timers............................................................................................................. 307

Clearing the FRRP Counters.......................................................................................................308

Viewing the FRRP Configuration................................................................................................308

Viewing the FRRP Information................................................................................................... 308

Troubleshooting FRRP......................................................................................................................308

Configuration Checks.................................................................................................................308

Sample Configuration and Topology.............................................................................................. 309

17 GARP VLAN Registration Protocol (GVRP).................................................311

Important Points to Remember........................................................................................................ 311

Configure GVRP................................................................................................................................ 312

Related Configuration Tasks....................................................................................................... 312

Enabling GVRP Globally.................................................................................................................... 313

Enabling GVRP on a Layer 2 Interface..............................................................................................313

Configure GVRP Registration............................................................................................................313

Configure a GARP Timer...................................................................................................................314

RPM Redundancy.............................................................................................................................. 315

18 High Availability (HA)..................................................................................... 316

Component Redundancy................................................................................................................. 316

Automatic and Manual Stack Unit Failover.................................................................................316

Synchronization between Management and Standby Units......................................................317

Forcing an Stack Unit Failover.....................................................................................................317

Specifying an Auto-Failover Limit...............................................................................................318

Disabling Auto-Reboot............................................................................................................... 318

Manually Synchronizing Management and Standby Units........................................................ 318

Pre-Configuring a Stack Unit Slot.................................................................................................... 318

Removing a Provisioned Logical Stack Unit.....................................................................................319

Hitless Behavior.................................................................................................................................319

Graceful Restart.................................................................................................................................319

Software Resiliency...........................................................................................................................320

Software Component Health Monitoring..................................................................................320

System Health Monitoring..........................................................................................................320

Failure and Event Logging.......................................................................................................... 320

Hot-Lock Behavior............................................................................................................................321

19 Internet Group Management Protocol (IGMP).........................................322

IGMP Implementation Information..................................................................................................322

IGMP Protocol Overview.................................................................................................................. 322

IGMP Version 2............................................................................................................................322

IGMP Version 3............................................................................................................................324

Configure IGMP.................................................................................................................................327

Related Configuration Tasks.......................................................................................................327

Viewing IGMP Enabled Interfaces.................................................................................................... 328

Selecting an IGMP Version............................................................................................................... 328

Viewing IGMP Groups.......................................................................................................................329

Adjusting Timers............................................................................................................................... 329

Adjusting Query and Response Timers......................................................................................329

Preventing a Host from Joining a Group.........................................................................................330

Enabling IGMP Immediate-Leave.....................................................................................................333

IGMP Snooping................................................................................................................................. 333

IGMP Snooping Implementation Information........................................................................... 333

Configuring IGMP Snooping.......................................................................................................333

Removing a Group-Port Association......................................................................................... 334

Disabling Multicast Flooding...................................................................................................... 334

Specifying a Port as Connected to a Multicast Router..............................................................335

Configuring the Switch as Querier.............................................................................................335

Fast Convergence after MSTP Topology Changes......................................................................... 336

Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................336

Protocol Separation.................................................................................................................... 337

Enabling and Disabling Management Egress Interface Selection.............................................338

Handling of Management Route Configuration........................................................................339

Handling of Switch-Initiated Traffic........................................................................................... 339

Handling of Switch-Destined Traffic......................................................................................... 340

Handling of Transit Traffic (Traffic Separation).......................................................................... 341

Mapping of Management Applications and Traffic Type...........................................................341

Behavior of Various Applications for Switch-Initiated Traffic .................................................. 342

Behavior of Various Applications for Switch-Destined Traffic .................................................343

Interworking of EIS With Various Applications.......................................................................... 344

Designating a Multicast Router Interface.........................................................................................345

20 Interfaces.........................................................................................................346

Basic Interface Configuration.......................................................................................................... 346

Advanced Interface Configuration...................................................................................................346

Interface Types..................................................................................................................................347

View Basic Interface Information..................................................................................................... 347

Resetting an Interface to its Factory Default State..........................................................................349

Enabling a Physical Interface............................................................................................................349

Physical Interfaces............................................................................................................................ 350

Configuration Task List for Physical Interfaces..........................................................................350

Overview of Layer Modes...........................................................................................................350

Configuring Layer 2 (Data Link) Mode........................................................................................351

Configuring Layer 2 (Interface) Mode.........................................................................................351

Configuring Layer 3 (Network) Mode.........................................................................................352

Configuring Layer 3 (Interface) Mode........................................................................................ 352

Egress Interface Selection (EIS)........................................................................................................ 353

Important Points to Remember..................................................................................................353

Configuring EIS............................................................................................................................353

Management Interfaces....................................................................................................................354

Configuring Management Interfaces......................................................................................... 354

Configuring a Management Interface on an Ethernet Port...................................................... 356

VLAN Interfaces.................................................................................................................................357

Loopback Interfaces..........................................................................................................................357

Null Interfaces...................................................................................................................................358

Port Channel Interfaces....................................................................................................................358

Port Channel Definition and Standards......................................................................................358

Port Channel Benefits.................................................................................................................359

Port Channel Implementation....................................................................................................359

Interfaces in Port Channels........................................................................................................ 359

Configuration Tasks for Port Channel Interfaces......................................................................360

Creating a Port Channel.............................................................................................................360

Adding a Physical Interface to a Port Channel..........................................................................360

Reassigning an Interface to a New Port Channel......................................................................362

Configuring the Minimum Oper Up Links in a Port Channel....................................................363

Adding or Removing a Port Channel from a VLAN................................................................... 363

Assigning an IP Address to a Port Channel................................................................................365

Deleting or Disabling a Port Channel.........................................................................................365

Load Balancing Through Port Channels....................................................................................365

Changing the Hash Algorithm....................................................................................................365

Bulk Configuration............................................................................................................................367

Interface Range........................................................................................................................... 367

Bulk Configuration Examples..................................................................................................... 367

Defining Interface Range Macros.................................................................................................... 369

Define the Interface Range.........................................................................................................369

Choosing an Interface-Range Macro........................................................................................ 369

Monitoring and Maintaining Interfaces............................................................................................369

Maintenance Using TDR..............................................................................................................371

Splitting QSFP Ports to SFP+ Ports................................................................................................... 371

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................ 372

Important Points to Remember..................................................................................................372

Example Scenarios...................................................................................................................... 373

Link Dampening................................................................................................................................ 373

Important Points to Remember..................................................................................................374

Enabling Link Dampening...........................................................................................................374

Link Bundle Monitoring.....................................................................................................................375

Using Ethernet Pause Frames for Flow Control.............................................................................. 376

Enabling Pause Frames............................................................................................................... 376

Configure the MTU Size on an Interface..........................................................................................377

Port-Pipes..........................................................................................................................................378

Auto-Negotiation on Ethernet Interfaces........................................................................................378

Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................379

Set Auto-Negotiation Options................................................................................................... 380

View Advanced Interface Information..............................................................................................381

Configuring the Interface Sampling Size................................................................................... 382

Dynamic Counters............................................................................................................................383

Clearing Interface Counters....................................................................................................... 383

21 Internet Protocol Security (IPSec)...............................................................385

Configuring IPSec ............................................................................................................................386

22 IPv4 Routing....................................................................................................387

IP Addresses...................................................................................................................................... 387

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

Configuration Tasks for IP Addresses.............................................................................................. 388

Assigning IP Addresses to an Interface............................................................................................388

Configuring Static Routes................................................................................................................ 389

Configure Static Routes for the Management Interface.................................................................390

IPv4 Path MTU Discovery Overview................................................................................................ 390

Using the Configured Source IP Address in ICMP Messages.......................................................... 391

Configuring the ICMP Source Interface..................................................................................... 391

Configuring the Duration to Establish a TCP Connection..............................................................392

Enabling Directed Broadcast............................................................................................................392

Resolution of Host Names............................................................................................................... 393

Enabling Dynamic Resolution of Host Names................................................................................ 393

Specifying the Local System Domain and a List of Domains..........................................................394

Configuring DNS with Traceroute................................................................................................... 394

ARP.................................................................................................................................................... 395

Configuration Tasks for ARP.............................................................................................................395

Configuring Static ARP Entries......................................................................................................... 396

Enabling Proxy ARP...........................................................................................................................396

Clearing ARP Cache..........................................................................................................................396

ARP Learning via Gratuitous ARP......................................................................................................397

Enabling ARP Learning via Gratuitous ARP...................................................................................... 397

ARP Learning via ARP Request......................................................................................................... 397

Configuring ARP Retries................................................................................................................... 398

ICMP..................................................................................................................................................399

Configuration Tasks for ICMP.......................................................................................................... 399

Enabling ICMP Unreachable Messages............................................................................................399

UDP Helper.......................................................................................................................................400

Configure UDP Helper............................................................................................................... 400

Important Points to Remember.................................................................................................400

Enabling UDP Helper........................................................................................................................400

Configuring a Broadcast Address.................................................................................................... 400

Configurations Using UDP Helper....................................................................................................401

UDP Helper with Broadcast-All Addresses...................................................................................... 401

UDP Helper with Subnet Broadcast Addresses............................................................................... 402

UDP Helper with Configured Broadcast Addresses........................................................................403

UDP Helper with No Configured Broadcast Addresses..................................................................403

Troubleshooting UDP Helper...........................................................................................................403

23 IPv6 Routing................................................................................................... 405

Protocol Overview............................................................................................................................405

Extended Address Space............................................................................................................ 405

Stateless Autoconfiguration....................................................................................................... 405

IPv6 Headers...............................................................................................................................406

IPv6 Header Fields.......................................................................................................................407

Extension Header Fields............................................................................................................. 408

Addressing...................................................................................................................................409

Implementing IPv6 with Dell Networking OS..................................................................................410

ICMPv6...............................................................................................................................................413

Path MTU Discovery..........................................................................................................................413

IPv6 Neighbor Discovery.................................................................................................................. 414

IPv6 Neighbor Discovery of MTU Packets..................................................................................415

Configuration Task List for IPv6 RDNSS...........................................................................................415

Configuring the IPv6 Recursive DNS Server...............................................................................415

Debugging IPv6 RDNSS Information Sent to the Host .............................................................416

Displaying IPv6 RDNSS Information........................................................................................... 417

Secure Shell (SSH) Over an IPv6 Transport...................................................................................... 417

Configuration Tasks for IPv6............................................................................................................ 418

Adjusting Your CAM-Profile........................................................................................................418

Assigning an IPv6 Address to an Interface................................................................................. 419

Assigning a Static IPv6 Route......................................................................................................419

Configuring Telnet with IPv6..................................................................................................... 420

SNMP over IPv6.......................................................................................................................... 420

Displaying IPv6 Information....................................................................................................... 420

Displaying an IPv6 Interface Information...................................................................................421

Showing IPv6 Routes.................................................................................................................. 422

Showing the Running-Configuration for an Interface.............................................................. 423

Clearing IPv6 Routes...................................................................................................................423

Configuring IPv6 RA Guard.............................................................................................................. 424

Configuring IPv6 RA Guard on an Interface.............................................................................. 426

Monitoring IPv6 RA Guard..........................................................................................................426

24 Intermediate System to Intermediate System..........................................427

IS-IS Protocol Overview................................................................................................................... 427

IS-IS Addressing................................................................................................................................ 427

Multi-Topology IS-IS........................................................................................................................ 428

Transition Mode..........................................................................................................................428

Interface Support........................................................................................................................ 429

Adjacencies................................................................................................................................. 429

Graceful Restart................................................................................................................................ 429

Timers..........................................................................................................................................429

Implementation Information............................................................................................................430

Configuration Information................................................................................................................431

Configuration Tasks for IS-IS......................................................................................................431

Configuring the Distance of a Route.........................................................................................440

Changing the IS-Type................................................................................................................ 440

Redistributing IPv4 Routes......................................................................................................... 443

Redistributing IPv6 Routes......................................................................................................... 443

Configuring Authentication Passwords..................................................................................... 444

Setting the Overload Bit..............................................................................................................445

Debugging IS-IS..........................................................................................................................445

IS-IS Metric Styles............................................................................................................................. 447

Configure Metric Values................................................................................................................... 447

Maximum Values in the Routing Table...................................................................................... 447

Change the IS-IS Metric Style in One Level Only...................................................................... 447

Leaks from One Level to Another.............................................................................................. 449

Sample Configurations.....................................................................................................................450

25 Link Aggregation Control Protocol (LACP)...............................................453

Introduction to Dynamic LAGs and LACP....................................................................................... 453

Important Points to Remember................................................................................................. 453

LACP Modes................................................................................................................................454

Configuring LACP Commands...................................................................................................454

LACP Configuration Tasks................................................................................................................455

Creating a LAG............................................................................................................................ 455

Configuring the LAG Interfaces as Dynamic............................................................................. 456

Setting the LACP Long Timeout.................................................................................................456

Monitoring and Debugging LACP...............................................................................................457

Shared LAG State Tracking............................................................................................................... 457

Configuring Shared LAG State Tracking.................................................................................... 458

Important Points about Shared LAG State Tracking..................................................................459

LACP Basic Configuration Example.................................................................................................460

Configure a LAG on ALPHA........................................................................................................460

26 Layer 2..............................................................................................................468

Manage the MAC Address Table......................................................................................................468

Clearing the MAC Address Table............................................................................................... 468

Setting the Aging Time for Dynamic Entries............................................................................. 468

Configuring a Static MAC Address............................................................................................. 469

Displaying the MAC Address Table............................................................................................ 469

MAC Learning Limit.......................................................................................................................... 469

Setting the MAC Learning Limit..................................................................................................470

mac learning-limit Dynamic.......................................................................................................470

mac learning-limit mac-address-sticky..................................................................................... 471

mac learning-limit station-move................................................................................................471

mac learning-limit no-station-move..........................................................................................471

Learning Limit Violation Actions.................................................................................................472

Setting Station Move Violation Actions...................................................................................... 472

Recovering from Learning Limit and Station Move Violations..................................................473

NIC Teaming..................................................................................................................................... 473

Configure Redundant Pairs.............................................................................................................. 474

Important Points about Configuring Redundant Pairs..............................................................476

Far-End Failure Detection.................................................................................................................477

FEFD State Changes....................................................................................................................478

Configuring FEFD........................................................................................................................479

Enabling FEFD on an Interface...................................................................................................480

Debugging FEFD..........................................................................................................................481

27 Link Layer Discovery Protocol (LLDP)........................................................483

802.1AB (LLDP) Overview.................................................................................................................483

Protocol Data Units.................................................................................................................... 483

Optional TLVs................................................................................................................................... 484

Management TLVs......................................................................................................................484

TIA-1057 (LLDP-MED) Overview......................................................................................................486

TIA Organizationally Specific TLVs.............................................................................................487

Configure LLDP.................................................................................................................................491

Related Configuration Tasks.......................................................................................................491

Important Points to Remember..................................................................................................491

LLDP Compatibility..................................................................................................................... 492

CONFIGURATION versus INTERFACE Configurations....................................................................492

Enabling LLDP...................................................................................................................................493

Disabling and Undoing LLDP......................................................................................................493

Enabling LLDP on Management Ports.............................................................................................493

Disabling and Undoing LLDP on Management Ports................................................................493

Advertising TLVs................................................................................................................................494

Viewing the LLDP Configuration......................................................................................................495

Viewing Information Advertised by Adjacent LLDP Agents............................................................ 496

Configuring LLDPDU Intervals......................................................................................................... 497

Configuring Transmit and Receive Mode........................................................................................ 497

Configuring the Time to Live Value................................................................................................. 498

Debugging LLDP...............................................................................................................................499

Relevant Management Objects........................................................................................................500

28 Microsoft Network Load Balancing............................................................506

NLB Unicast Mode Scenario.............................................................................................................506

NLB Multicast Mode Scenario.......................................................................................................... 507

Limitations of the NLB Feature.........................................................................................................507

Microsoft Clustering......................................................................................................................... 507

Enable and Disable VLAN Flooding .................................................................................................508

Configuring a Switch for NLB ......................................................................................................... 508

Enabling a Switch for Multicast NLB.......................................................................................... 508

29 Multicast Source Discovery Protocol (MSDP)...........................................510

Protocol Overview............................................................................................................................ 510

Anycast RP......................................................................................................................................... 512

Implementation Information............................................................................................................ 512

Configure Multicast Source Discovery Protocol..............................................................................512

Related Configuration Tasks....................................................................................................... 512

Enable MSDP..................................................................................................................................... 516

Manage the Source-Active Cache....................................................................................................517

Viewing the Source-Active Cache.............................................................................................. 517

Limiting the Source-Active Cache..............................................................................................518

Clearing the Source-Active Cache.............................................................................................518

Enabling the Rejected Source-Active Cache............................................................................. 518

Accept Source-Active Messages that Fail the RFP Check...............................................................518

Specifying Source-Active Messages.................................................................................................522

Limiting the Source-Active Messages from a Peer..........................................................................523

Preventing MSDP from Caching a Local Source............................................................................. 523

Preventing MSDP from Caching a Remote Source.........................................................................524

Preventing MSDP from Advertising a Local Source.........................................................................525

Logging Changes in Peership States................................................................................................525

Terminating a Peership.....................................................................................................................526

Clearing Peer Statistics..................................................................................................................... 526

Debugging MSDP..............................................................................................................................527

MSDP with Anycast RP......................................................................................................................527

Configuring Anycast RP....................................................................................................................528

Reducing Source-Active Message Flooding..............................................................................529

Specifying the RP Address Used in SA Messages.......................................................................529

MSDP Sample Configurations...........................................................................................................531

30 Multiple Spanning Tree Protocol (MSTP).................................................. 534

Protocol Overview............................................................................................................................534

Spanning Tree Variations..................................................................................................................535

Implementation Information...................................................................................................... 535

Configure Multiple Spanning Tree Protocol....................................................................................535

Related Configuration Tasks.......................................................................................................535

Enable Multiple Spanning Tree Globally.......................................................................................... 536

Adding and Removing Interfaces.....................................................................................................536

Creating Multiple Spanning Tree Instances.....................................................................................536

Influencing MSTP Root Selection.....................................................................................................538

Interoperate with Non-Dell Bridges.................................................................................................538

Changing the Region Name or Revision..........................................................................................539

Modifying Global Parameters...........................................................................................................539

Modifying the Interface Parameters................................................................................................ 540

Configuring an EdgePort.................................................................................................................. 541

Flush MAC Addresses after a Topology Change............................................................................. 542

MSTP Sample Configurations...........................................................................................................542

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-

ConfigurationSFTOS Example Running-Configuration............................................................ 543

Debugging and Verifying MSTP Configurations..............................................................................546

31 Multicast Features..........................................................................................549

Enabling IP Multicast........................................................................................................................ 549

Implementation Information............................................................................................................549

Multicast Policies.............................................................................................................................. 550

IPv4 Multicast Policies................................................................................................................ 550

32 Object Tracking..............................................................................................558

Object Tracking Overview................................................................................................................558

Track Layer 2 Interfaces..............................................................................................................559

Track Layer 3 Interfaces..............................................................................................................559

Track IPv4 and IPv6 Routes........................................................................................................560

Set Tracking Delays..................................................................................................................... 561

VRRP Object Tracking................................................................................................................. 561

Object Tracking Configuration.........................................................................................................561

Tracking a Layer 2 Interface........................................................................................................561

Tracking a Layer 3 Interface....................................................................................................... 562

Track an IPv4/IPv6 Route........................................................................................................... 564

Displaying Tracked Objects..............................................................................................................568

33 Open Shortest Path First (OSPFv2 and OSPFv3).......................................570

Protocol Overview............................................................................................................................ 570

Autonomous System (AS) Areas................................................................................................. 570

Area Types....................................................................................................................................571

Networks and Neighbors............................................................................................................ 572

Router Types................................................................................................................................572

Designated and Backup Designated Routers.............................................................................574

Link-State Advertisements (LSAs)............................................................................................... 574

Router Priority and Cost............................................................................................................. 576

OSPF with Dell Networking OS........................................................................................................ 576

Graceful Restart...........................................................................................................................577

Fast Convergence (OSPFv2, IPv4 Only)..................................................................................... 578

Multi-Process OSPFv2 with VRF.................................................................................................578

OSPF ACK Packing...................................................................................................................... 579

Setting OSPF Adjacency with Cisco Routers............................................................................. 579

Configuration Information............................................................................................................... 580

Configuration Task List for OSPFv2 (OSPF for IPv4)................................................................. 580

Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................595

Enabling IPv6 Unicast Routing................................................................................................... 596

Applying cost for OSPFv3........................................................................................................... 596

Assigning IPv6 Addresses on an Interface..................................................................................597

Assigning Area ID on an Interface.............................................................................................. 597

Assigning OSPFv3 Process ID and Router ID Globally...............................................................597

Assigning OSPFv3 Process ID and Router ID to a VRF.............................................................. 598

Configuring Stub Areas...............................................................................................................599

Configuring Passive-Interface....................................................................................................599

Redistributing Routes..................................................................................................................599

Configuring a Default Route...................................................................................................... 600

Enabling OSPFv3 Graceful Restart.............................................................................................600

OSPFv3 Authentication Using IPsec...........................................................................................602

Troubleshooting OSPFv3............................................................................................................610

34 Policy-based Routing (PBR)......................................................................... 612

Overview............................................................................................................................................612

Implementing Policy-based Routing with Dell Networking OS......................................................613

Configuration Task List for Policy-based Routing...........................................................................614

PBR Exceptions (Permit)..............................................................................................................614

Create a Redirect List.................................................................................................................. 614

Create a Rule for a Redirect-list..................................................................................................615

Apply a Redirect-list to an Interface using a Redirect-group....................................................617

Sample Configuration.......................................................................................................................619

35 PIM Sparse-Mode (PIM-SM)......................................................................... 620

Implementation Information............................................................................................................620

Protocol Overview............................................................................................................................620

Requesting Multicast Traffic.......................................................................................................620

Refuse Multicast Traffic...............................................................................................................621

Send Multicast Traffic..................................................................................................................621

Configuring PIM-SM......................................................................................................................... 622

Related Configuration Tasks.......................................................................................................622

Enable PIM-SM..................................................................................................................................622

Configuring S,G Expiry Timers......................................................................................................... 623

Configuring a Static Rendezvous Point........................................................................................... 624

Overriding Bootstrap Router Updates....................................................................................... 624

Configuring a Designated Router.................................................................................................... 625

Creating Multicast Boundaries and Domains.................................................................................. 625

36 PIM Source-Specific Mode (PIM-SSM)....................................................... 627

Implementation Information............................................................................................................ 627

Important Points to Remember..................................................................................................627

Configure PIM-SSM.......................................................................................................................... 628

Related Configuration Tasks...................................................................................................... 628

Enabling PIM-SSM............................................................................................................................ 628

Use PIM-SSM with IGMP Version 2 Hosts....................................................................................... 628

Configuring PIM-SSM with IGMPv2........................................................................................... 629

37 Port Monitoring.............................................................................................. 631

Important Points to Remember........................................................................................................631

Port Monitoring.................................................................................................................................632

Configuring Port Monitoring............................................................................................................633

Configuring Monitor Multicast Queue.............................................................................................635

Enabling Flow-Based Monitoring.....................................................................................................636

Remote Port Mirroring......................................................................................................................637

Remote Port Mirroring Example.................................................................................................637

Configuring Remote Port Mirroring...........................................................................................638

Displaying Remote-Port Mirroring Configurations...................................................................640

Configuring the Sample Remote Port Mirroring....................................................................... 640

Encapsulated Remote Port Monitoring........................................................................................... 644

Changes to Default BehaviorConfiguration steps for ERPM ................................................... 644

ERPM Behavior on a typical Dell Networking OS ...........................................................................646

Decapsulation of ERPM packets at the Destination IP/ Analyzer............................................. 646

38 Private VLANs (PVLAN)..................................................................................648

Private VLAN Concepts.................................................................................................................... 648

Using the Private VLAN Commands................................................................................................ 649

Configuration Task List.....................................................................................................................650

Creating PVLAN ports.................................................................................................................650

Creating a Primary VLAN.............................................................................................................651

Creating a Community VLAN..................................................................................................... 652

Creating an Isolated VLAN..........................................................................................................653

Private VLAN Configuration Example.............................................................................................. 654

Inspecting the Private VLAN Configuration.....................................................................................655

39 Per-VLAN Spanning Tree Plus (PVST+)...................................................... 658

Protocol Overview............................................................................................................................658

Implementation Information............................................................................................................659

Configure Per-VLAN Spanning Tree Plus........................................................................................ 659

Related Configuration Tasks...................................................................................................... 659

Enabling PVST+.................................................................................................................................659

Disabling PVST+............................................................................................................................... 660

Influencing PVST+ Root Selection...................................................................................................660

Modifying Global PVST+ Parameters...............................................................................................662

Modifying Interface PVST+ Parameters...........................................................................................663

Configuring an EdgePort..................................................................................................................664

PVST+ in Multi-Vendor Networks....................................................................................................664

Enabling PVST+ Extend System ID...................................................................................................665

PVST+ Sample Configurations.........................................................................................................666

40 Quality of Service (QoS)............................................................................... 668

Implementation Information............................................................................................................670

Port-Based QoS Configurations...................................................................................................... 670

Setting dot1p Priorities for Incoming Traffic.............................................................................. 671

Honoring dot1p Priorities on Ingress Traffic.............................................................................. 671

Configuring Port-Based Rate Policing....................................................................................... 672

Configuring Port-Based Rate Shaping....................................................................................... 673

Policy-Based QoS Configurations................................................................................................... 674

Classify Traffic............................................................................................................................. 674

Create a QoS Policy....................................................................................................................678

Create Policy Maps.....................................................................................................................680

DSCP Color Maps............................................................................................................................. 684

Creating a DSCP Color Map.......................................................................................................684

Displaying DSCP Color Maps..................................................................................................... 685

Displaying a DSCP Color Policy Configuration ........................................................................ 686

Enabling QoS Rate Adjustment........................................................................................................686

Enabling Strict-Priority Queueing.................................................................................................... 687

Weighted Random Early Detection..................................................................................................687

Creating WRED Profiles..............................................................................................................688

Applying a WRED Profile to Traffic.............................................................................................689

Displaying Default and Configured WRED Profiles................................................................... 689

Displaying WRED Drop Statistics................................................................................................689

Displaying egress-queue Statistics............................................................................................ 690

Pre-Calculating Available QoS CAM Space.....................................................................................690

Configuring Weights and ECN for WRED ....................................................................................... 691

Global Service Pools With WRED and ECN Settings................................................................. 692

Configuring WRED and ECN Attributes...........................................................................................694

Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................694

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class..........695

Classifying Incoming Packets Using ECN and Color-Marking................................................. 695

Sample configuration to mark non-ecn packets as “yellow” with single traffic class............. 698

Applying Layer 2 Match Criteria on a Layer 3 Interface.................................................................. 699

Applying DSCP and VLAN Match Criteria on a Service Queue.......................................................699

Classifying Incoming Packets Using ECN and Color-Marking....................................................... 700

Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................703

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class................703

Sample configuration to mark non-ecn packets as “yellow” with single traffic class................... 704

41 Routing Information Protocol (RIP)........................................................... 706

Protocol Overview............................................................................................................................706

RIPv1............................................................................................................................................ 706

RIPv2............................................................................................................................................706

Implementation Information............................................................................................................ 707

Configuration Information................................................................................................................707

Configuration Task List............................................................................................................... 707

RIP Configuration Example......................................................................................................... 714

42 Remote Monitoring (RMON)........................................................................720

Implementation Information............................................................................................................720

Fault Recovery...................................................................................................................................720

Setting the RMON Alarm............................................................................................................. 721

Configuring an RMON Event...................................................................................................... 722

Configuring RMON Collection Statistics....................................................................................722

Configuring the RMON Collection History................................................................................ 723

43 Rapid Spanning Tree Protocol (RSTP)........................................................724

Protocol Overview............................................................................................................................ 724

Configuring Rapid Spanning Tree.................................................................................................... 724

Related Configuration Tasks.......................................................................................................724

Important Points to Remember........................................................................................................725

RSTP and VLT.............................................................................................................................. 725

Configuring Interfaces for Layer 2 Mode.........................................................................................725

Enabling Rapid Spanning Tree Protocol Globally............................................................................726

Adding and Removing Interfaces..................................................................................................... 728

Modifying Global Parameters........................................................................................................... 729

Enabling SNMP Traps for Root Elections and Topology Changes........................................... 730

Modifying Interface Parameters....................................................................................................... 730

Enabling SNMP Traps for Root Elections and Topology Changes..................................................731

Influencing RSTP Root Selection...................................................................................................... 731

Configuring an EdgePort...................................................................................................................731

Configuring Fast Hellos for Link State Detection............................................................................ 732

44 Software-Defined Networking (SDN)........................................................ 734

45 Security............................................................................................................ 735

AAA Accounting................................................................................................................................ 735

Configuration Task List for AAA Accounting..............................................................................735

AAA Authentication........................................................................................................................... 737

Configuration Task List for AAA Authentication........................................................................ 738

Obscuring Passwords and Keys....................................................................................................... 740

AAA Authorization............................................................................................................................. 741

Privilege Levels Overview............................................................................................................741

Configuration Task List for Privilege Levels................................................................................741

RADIUS.............................................................................................................................................. 745

RADIUS Authentication...............................................................................................................746

Configuration Task List for RADIUS............................................................................................747

TACACS+...........................................................................................................................................750

Configuration Task List for TACACS+........................................................................................ 750

TACACS+ Remote Authentication..............................................................................................752

Command Authorization............................................................................................................ 753

Protection from TCP Tiny and Overlapping Fragment Attacks.......................................................753

Enabling SCP and SSH...................................................................................................................... 753

Using SCP with SSH to Copy a Software Image........................................................................ 754

Removing the RSA Host Keys and Zeroizing Storage ...............................................................755

Configuring When to Re-generate an SSH Key ........................................................................756

Configuring the SSH Server Key Exchange Algorithm...............................................................756

Configuring the HMAC Algorithm for the SSH Server............................................................... 757

Configuring the SSH Server Cipher List......................................................................................757

Secure Shell Authentication........................................................................................................758

Troubleshooting SSH..................................................................................................................760

Telnet................................................................................................................................................. 761

VTY Line and Access-Class Configuration.......................................................................................761

VTY Line Local Authentication and Authorization..................................................................... 761

VTY Line Remote Authentication and Authorization.................................................................762

VTY MAC-SA Filter Support.........................................................................................................763

Role-Based Access Control..............................................................................................................763

Overview of RBAC.......................................................................................................................764

User Roles....................................................................................................................................766

AAA Authentication and Authorization for Roles.......................................................................770

Role Accounting..........................................................................................................................773

Display Information About User Roles....................................................................................... 774

46 Service Provider Bridging............................................................................. 776

VLAN Stacking................................................................................................................................... 776

Important Points to Remember.................................................................................................. 777

Configure VLAN Stacking............................................................................................................778

Creating Access and Trunk Ports................................................................................................778

Enable VLAN-Stacking for a VLAN..............................................................................................779

Configuring the Protocol Type Value for the Outer VLAN Tag.................................................779

Configuring Dell Networking OS Options for Trunk Ports........................................................779

Debugging VLAN Stacking..........................................................................................................780

VLAN Stacking in Multi-Vendor Networks..................................................................................781

VLAN Stacking Packet Drop Precedence.........................................................................................785

Enabling Drop Eligibility.............................................................................................................. 785

Honoring the Incoming DEI Value............................................................................................. 786

Marking Egress Packets with a DEI Value...................................................................................786

Dynamic Mode CoS for VLAN Stacking........................................................................................... 787

Mapping C-Tag to S-Tag dot1p Values......................................................................................788

Layer 2 Protocol Tunneling.............................................................................................................. 789

Implementation Information.......................................................................................................791

Enabling Layer 2 Protocol Tunneling......................................................................................... 792

Specifying a Destination MAC Address for BPDUs.................................................................... 792

Setting Rate-Limit BPDUs........................................................................................................... 792

Debugging Layer 2 Protocol Tunneling.....................................................................................793

Provider Backbone Bridging.............................................................................................................793

47 sFlow.................................................................................................................794

Overview........................................................................................................................................... 794

Implementation Information............................................................................................................794

Important Points to Remember..................................................................................................795

Enabling Extended sFlow..................................................................................................................795

Enabling and Disabling sFlow on an Interface.................................................................................796

Enabling sFlow Max-Header Size Extended.................................................................................... 796

sFlow Show Commands...................................................................................................................798

Displaying Show sFlow Global................................................................................................... 798

Displaying Show sFlow on an Interface..................................................................................... 798

Displaying Show sFlow on a Stack-unit.....................................................................................799

Configuring Specify Collectors........................................................................................................ 799

Changing the Polling Intervals......................................................................................................... 799

Back-Off Mechanism....................................................................................................................... 800

sFlow on LAG ports.......................................................................................................................... 800

Enabling Extended sFlow.................................................................................................................800

Important Points to Remember..................................................................................................801

48 Simple Network Management Protocol (SNMP)..................................... 803

Protocol Overview............................................................................................................................803

Implementation Information............................................................................................................803

SNMPv3 Compliance With FIPS....................................................................................................... 803

Configuration Task List for SNMP....................................................................................................805

Related Configuration Tasks...................................................................................................... 805

Important Points to Remember.......................................................................................................805

Set up SNMP..................................................................................................................................... 805

Creating a Community...............................................................................................................806

Setting Up User-Based Security (SNMPv3)................................................................................806

Reading Managed Object Values..................................................................................................... 807

Writing Managed Object Values...................................................................................................... 808

Configuring Contact and Location Information using SNMP........................................................ 809

Subscribing to Managed Object Value Updates using SNMP......................................................... 810

Enabling a Subset of SNMP Traps.....................................................................................................811

Enabling an SNMP Agent to Notify Syslog Server Failure................................................................813

Copy Configuration Files Using SNMP.............................................................................................814

Copying a Configuration File......................................................................................................816

Copying Configuration Files via SNMP.......................................................................................816

Copying the Startup-Config Files to the Running-Config.........................................................817

Copying the Startup-Config Files to the Server via FTP............................................................ 817

Copying the Startup-Config Files to the Server via TFTP..........................................................818

Copy a Binary File to the Startup-Configuration....................................................................... 818

Additional MIB Objects to View Copy Statistics.........................................................................819

Obtaining a Value for MIB Objects.............................................................................................819

MIB Support to Display the Available Memory Size on Flash..........................................................820

Viewing the Available Flash Memory Size..................................................................................820

MIB Support to Display the Software Core Files Generated by the System................................... 821

Viewing the Software Core Files Generated by the System......................................................821

Manage VLANs using SNMP............................................................................................................. 822

Creating a VLAN..........................................................................................................................822

Assigning a VLAN Alias................................................................................................................822

Displaying the Ports in a VLAN................................................................................................... 823

Add Tagged and Untagged Ports to a VLAN..............................................................................824

Managing Overload on Startup........................................................................................................ 825

Enabling and Disabling a Port using SNMP......................................................................................825

Fetch Dynamic MAC Entries using SNMP........................................................................................826

Deriving Interface Indices.................................................................................................................827

Monitor Port-Channels.................................................................................................................... 829

Enabling an SNMP Agent to Notify Syslog Server Failure............................................................... 830

Troubleshooting SNMP Operation...................................................................................................831

49 Stacking........................................................................................................... 832

Stacking Overview............................................................................................................................ 832

Stack Management Roles........................................................................................................... 832

Stack Master Election..................................................................................................................833

Virtual IP...................................................................................................................................... 833

Failover Roles.............................................................................................................................. 833

MAC Addressing on Stacks.........................................................................................................834

Stacking LAG............................................................................................................................... 836

Supported Stacking Topologies................................................................................................. 836

High Availability on Stacks.......................................................................................................... 837

Management Access on Stacks..................................................................................................837

Important Points to Remember....................................................................................................... 838

Stacking Installation Tasks................................................................................................................839

Create an Stack...........................................................................................................................839

Add Units to an Existing Stack....................................................................................................843

Split a Stack.................................................................................................................................846

Stacking Configuration Tasks...........................................................................................................846

Assigning Unit Numbers to Units in an Stack............................................................................ 846

Creating a Virtual Stack Unit on a Stack.....................................................................................847

Displaying Information about a Stack........................................................................................ 847

Influencing Management Unit Selection on a Stack.................................................................849

Managing Redundancy on a Stack.............................................................................................849

Resetting a Unit on a Stack.........................................................................................................850

Verify a Stack Configuration.............................................................................................................850

Displaying the Status of Stacking Ports..................................................................................... 850

Remove Units or Front End Ports from a Stack...............................................................................852

Removing a Unit from a Stack....................................................................................................852

Removing Front End Port Stacking............................................................................................ 853

Troubleshoot a Stack........................................................................................................................853

Recover from Stack Link Flaps................................................................................................... 854

Recover from a Card Problem State on a Stack........................................................................854

50 Storm Control.................................................................................................856

Configure Storm Control................................................................................................................. 856

Configuring Storm Control from INTERFACE Mode.................................................................856

Configuring Storm Control from CONFIGURATION Mode...................................................... 857

51 Spanning Tree Protocol (STP)......................................................................858

Protocol Overview............................................................................................................................858

Configure Spanning Tree................................................................................................................. 858

Related Configuration Tasks...................................................................................................... 858

Important Points to Remember....................................................................................................... 859

Configuring Interfaces for Layer 2 Mode.........................................................................................859

Enabling Spanning Tree Protocol Globally..................................................................................... 860

Adding an Interface to the Spanning Tree Group........................................................................... 862

Modifying Global Parameters...........................................................................................................863

Modifying Interface STP Parameters............................................................................................... 864

Enabling PortFast..............................................................................................................................864

Prevent Network Disruptions with BPDU Guard....................................................................... 865

Selecting STP Root........................................................................................................................... 867

STP Root Guard................................................................................................................................ 868

Root Guard Scenario.................................................................................................................. 868

Configuring Root Guard.............................................................................................................869

Enabling SNMP Traps for Root Elections and Topology Changes.................................................870

Configuring Spanning Trees as Hitless............................................................................................ 870

STP Loop Guard................................................................................................................................ 871

Configuring Loop Guard.............................................................................................................872

Displaying STP Guard Configuration................................................................................................873

52 SupportAssist.................................................................................................. 874

Configuring SupportAssist Using a Configuration Wizard.............................................................. 875

Configuring SupportAssist Manually................................................................................................ 875

Configuring SupportAssist Activity................................................................................................... 877

Configuring SupportAssist Company...............................................................................................878

Configuring SupportAssist Person................................................................................................... 879

Configuring SupportAssist Server.................................................................................................... 880

Viewing SupportAssist Configuration...............................................................................................881

53 System Time and Date...................................................................................883

Network Time Protocol....................................................................................................................883

Protocol Overview......................................................................................................................884

Configure the Network Time Protocol......................................................................................885

Enabling NTP...............................................................................................................................885

Configuring NTP Broadcasts......................................................................................................885

Disabling NTP on an Interface................................................................................................... 886

Configuring a Source IP Address for NTP Packets....................................................................886

Configuring NTP Authentication................................................................................................887

Dell Networking OS Time and Date................................................................................................ 890

Configuration Task List ..............................................................................................................890

Setting the Time and Date for the Switch Software Clock.......................................................890

Setting the Timezone................................................................................................................. 890

Set Daylight Saving Time.............................................................................................................891

Setting Daylight Saving Time Once............................................................................................891

Setting Recurring Daylight Saving Time.....................................................................................892

54 Tunneling........................................................................................................ 894

Configuring a Tunnel........................................................................................................................894

Configuring Tunnel Keepalive Settings............................................................................................895

Configuring a Tunnel Interface........................................................................................................896

Configuring Tunnel Allow-Remote Decapsulation.........................................................................896

Configuring the Tunnel Source Anylocal.........................................................................................897

55 Uplink Failure Detection (UFD)....................................................................898

Feature Description.......................................................................................................................... 898

How Uplink Failure Detection Works...............................................................................................899

UFD and NIC Teaming..................................................................................................................... 900

Important Points to Remember.......................................................................................................900

Configuring Uplink Failure Detection.............................................................................................. 901

Clearing a UFD-Disabled Interface..................................................................................................903

Displaying Uplink Failure Detection.................................................................................................904

Sample Configuration: Uplink Failure Detection............................................................................ 906

56 Upgrade Procedures..................................................................................... 908

Get Help with Upgrades...................................................................................................................908

57 Virtual LANs (VLANs)......................................................................................909

Default VLAN.................................................................................................................................... 909

Port-Based VLANs.............................................................................................................................910

VLANs and Port Tagging...................................................................................................................910

Configuration Task List......................................................................................................................911

Creating a Port-Based VLAN....................................................................................................... 911

Assigning Interfaces to a VLAN...................................................................................................912

Moving Untagged Interfaces.......................................................................................................913

Assigning an IP Address to a VLAN.............................................................................................914

Configuring Native VLANs................................................................................................................ 915

Enabling Null VLAN as the Default VLAN......................................................................................... 916

58 VLT Proxy Gateway........................................................................................ 917

Proxy Gateway in VLT Domains........................................................................................................917

Guidelines for Enabling the VLT Proxy Gateway....................................................................... 918

Enabling the VLT Proxy Gateway................................................................................................919

LLDP Organizational TLV for Proxy Gateway............................................................................ 920

Configuring an LLDP VLT Proxy Gateway....................................................................................... 922

Configuring a Static VLT Proxy Gateway......................................................................................... 922

59 Virtual Link Trunking (VLT).......................................................................... 924

Overview........................................................................................................................................... 924

VLT on Core Switches.................................................................................................................925

Enhanced VLT............................................................................................................................. 925

VLT Terminology.............................................................................................................................. 926

Configure Virtual Link Trunking........................................................................................................927

Important Points to Remember..................................................................................................927

Configuration Notes................................................................................................................... 928

Primary and Secondary VLT Peers............................................................................................. 932

RSTP and VLT.............................................................................................................................. 932

VLT Bandwidth Monitoring.........................................................................................................933

VLT and Stacking.........................................................................................................................933

VLT and IGMP Snooping.............................................................................................................933

VLT IPv6.......................................................................................................................................933

VLT Port Delayed Restoration.................................................................................................... 933

PIM-Sparse Mode Support on VLT.............................................................................................934

VLT Routing ................................................................................................................................936

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Dell 210-AEDM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual