Dell S6000 Configuration manual

Dell Configuration Guide for the S6000 System

9.5(0.1)

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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2014 - 07

Rev. A00

Contents

1 About this Guide................................................................................................. 32

Audience..............................................................................................................................................32

Conventions........................................................................................................................................ 32

Related Documents............................................................................................................................ 32

2 Configuration Fundamentals........................................................................... 33

Accessing the Command Line............................................................................................................33

CLI Modes............................................................................................................................................33

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

The do Command............................................................................................................................... 37

Undoing Commands...........................................................................................................................38

Obtaining Help.................................................................................................................................... 39

Entering and Editing Commands....................................................................................................... 39

Command History.............................................................................................................................. 40

Filtering show Command Outputs.....................................................................................................40

Multiple Users in Configuration Mode............................................................................................... 42

3 Getting Started....................................................................................................43

Console Access...................................................................................................................................43

Serial Console................................................................................................................................43

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

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

Accessing the System Remotely.........................................................................................................45

Accessing the and S6000Remotely............................................................................................. 45

Configure the Management Port IP Address............................................................................... 45

Configure a Management Route..................................................................................................46

Configuring a Username and Password.......................................................................................46

Configuring the Enable Password......................................................................................................46

Configuration File Management.........................................................................................................47

Copy Files to and from the System.............................................................................................. 47

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

Configure the Overload Bit for a Startup Scenario......................................................................49

Viewing Files..................................................................................................................................49

Managing the File System...................................................................................................................50

View Command History...................................................................................................................... 51

Upgrading Dell Networking OS...........................................................................................................51

Using HTTP for File Transfers..............................................................................................................51

Using Hashes to Validate Software Images........................................................................................52

4 Management....................................................................................................... 54

Configuring Privilege Levels............................................................................................................... 54

Creating a Custom Privilege Level................................................................................................54

Removing a Command from EXEC Mode................................................................................... 54

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................ 54

Allowing Access to CONFIGURATION Mode Commands.......................................................... 55

Allowing Access to the Following Modes.....................................................................................55

Applying a Privilege Level to a Username.....................................................................................57

Applying a Privilege Level to a Terminal Line............................................................................... 57

Configuring Logging........................................................................................................................... 57

Audit and Security Logs.................................................................................................................58

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

Setting Up a Secure Connection to a Syslog Server....................................................................60

Log Messages in the Internal Buffer................................................................................................... 61

Configuration Task List for System Log Management.................................................................61

Disabling System Logging...................................................................................................................61

Sending System Messages to a Syslog Server....................................................................................62

Configuring a UNIX System as a Syslog Server............................................................................62

Changing System Logging Settings....................................................................................................62

Display the Logging Buffer and the Logging Configuration............................................................. 63

Configuring a UNIX Logging Facility Level.........................................................................................64

Synchronizing Log Messages............................................................................................................. 65

Enabling Timestamp on Syslog Messages......................................................................................... 65

File Transfer Services.......................................................................................................................... 66

Configuration Task List for File Transfer Services........................................................................66

Enabling the FTP Server................................................................................................................ 66

Configuring FTP Server Parameters..............................................................................................67

Configuring FTP Client Parameters.............................................................................................. 67

Terminal Lines.....................................................................................................................................68

Denying and Permitting Access to a Terminal Line.....................................................................68

Configuring Login Authentication for Terminal Lines................................................................. 69

Setting Time Out of EXEC Privilege Mode......................................................................................... 70

Using Telnet to get to Another Network Device............................................................................... 70

Lock CONFIGURATION Mode............................................................................................................ 71

Viewing the Configuration Lock Status.........................................................................................71

Restoring the Factory Default Settings...............................................................................................72

S6000MXL Switch..........................................................................................................................72

Important Points to Remember....................................................................................................72

Restoring Factory Default Environment Variables....................................................................... 73

5 802.1X................................................................................................................... 75

The Port-Authentication Process.......................................................................................................76

EAP over RADIUS...........................................................................................................................78

Configuring 802.1X............................................................................................................................. 78

Related Configuration Tasks.........................................................................................................78

Important Points to Remember..........................................................................................................79

Enabling 802.1X...................................................................................................................................79

Configuring Request Identity Re-Transmissions................................................................................81

Configuring a Quiet Period after a Failed Authentication............................................................81

Forcibly Authorizing or Unauthorizing a Port....................................................................................82

Re-Authenticating a Port.................................................................................................................... 83

Configuring Timeouts.........................................................................................................................84

Configuring Dynamic VLAN Assignment with Port Authentication..................................................85

Guest and Authentication-Fail VLANs................................................................................................86

Configuring a Guest VLAN............................................................................................................ 87

Configuring an Authentication-Fail VLAN....................................................................................87

6 Access Control Lists (ACLs).............................................................................. 89

IP Access Control Lists (ACLs)............................................................................................................90

CAM Usage....................................................................................................................................90

Implementing ACLs on Dell Networking OS................................................................................92

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

Configuration Task List for Route Maps.......................................................................................93

Configuring Match Routes............................................................................................................96

Configuring Set Conditions...........................................................................................................97

Configure a Route Map for Route Redistribution........................................................................98

Configure a Route Map for Route Tagging..................................................................................99

Continue Clause............................................................................................................................99

IP Fragment Handling.......................................................................................................................100

IP Fragments ACL Examples.......................................................................................................100

Layer 4 ACL Rules Examples....................................................................................................... 101

Configure a Standard IP ACL............................................................................................................ 102

Configuring a Standard IP ACL Filter..........................................................................................103

Configure an Extended IP ACL.........................................................................................................104

Configuring Filters with a Sequence Number............................................................................104

Configuring Filters Without a Sequence Number......................................................................105

Configure Layer 2 and Layer 3 ACLs................................................................................................ 106

Assign an IP ACL to an Interface.......................................................................................................107

Applying an IP ACL............................................................................................................................ 107

Counting ACL Hits.......................................................................................................................108

Configure Ingress ACLs.................................................................................................................... 108

Configure Egress ACLs..................................................................................................................... 109

Applying Egress Layer 3 ACLs (Control-Plane)...........................................................................110

IP Prefix Lists......................................................................................................................................110

Implementation Information....................................................................................................... 111

Configuration Task List for Prefix Lists........................................................................................ 111

ACL Resequencing.............................................................................................................................115

Resequencing an ACL or Prefix List............................................................................................ 115

Route Maps........................................................................................................................................ 117

Implementation Information....................................................................................................... 117

Flow-Based Monitoring Support for ACLs........................................................................................117

Behavior of Flow-Based Monitoring...........................................................................................118

Enabling Flow-Based Monitoring................................................................................................119

7 Bidirectional Forwarding Detection (BFD)................................................... 121

How BFD Works.................................................................................................................................121

BFD Packet Format......................................................................................................................122

BFD Sessions................................................................................................................................124

BFD Three-Way Handshake........................................................................................................124

Session State Changes................................................................................................................ 125

Important Points to Remember........................................................................................................126

Configure BFD...................................................................................................................................126

Configure BFD for Physical Ports................................................................................................127

Configure BFD for Static Routes.................................................................................................130

Configure BFD for OSPF............................................................................................................. 132

Configure BFD for OSPFv3..........................................................................................................135

Configure BFD for IS-IS...............................................................................................................136

Configure BFD for BGP............................................................................................................... 139

Configure BFD for VRRP............................................................................................................. 146

Configuring Protocol Liveness................................................................................................... 149

Troubleshooting BFD..................................................................................................................149

8 Border Gateway Protocol IPv4 (BGPv4)....................................................... 151

Autonomous Systems (AS)................................................................................................................ 151

Sessions and Peers............................................................................................................................ 153

Establish a Session.......................................................................................................................154

Route Reflectors................................................................................................................................154

BGP Attributes................................................................................................................................... 155

Best Path Selection Criteria.........................................................................................................156

Weight..........................................................................................................................................158

Local Preference......................................................................................................................... 158

Multi-Exit Discriminators (MEDs)................................................................................................ 159

Origin...........................................................................................................................................160

AS Path......................................................................................................................................... 161

Next Hop...................................................................................................................................... 161

Multiprotocol BGP.............................................................................................................................162

Implement BGP with Dell Networking OS....................................................................................... 162

Additional Path (Add-Path) Support........................................................................................... 162

Advertise IGP Cost as MED for Redistributed Routes................................................................ 162

Ignore Router-ID for Some Best-Path Calculations..................................................................163

Four-Byte AS Numbers............................................................................................................... 163

AS4 Number Representation...................................................................................................... 164

AS Number Migration..................................................................................................................165

BGP4 Management Information Base (MIB)...............................................................................167

Important Points to Remember..................................................................................................167

Configuration Information................................................................................................................168

BGP Configuration............................................................................................................................168

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

Configuring AS4 Number Representations................................................................................ 173

Configuring Peer Groups............................................................................................................ 175

Configuring BGP Fast Fall-Over..................................................................................................177

Configuring Passive Peering....................................................................................................... 179

Maintaining Existing AS Numbers During an AS Migration........................................................180

Allowing an AS Number to Appear in its Own AS Path.............................................................. 181

Enabling Graceful Restart............................................................................................................182

Enabling Neighbor Graceful Restart...........................................................................................183

Filtering on an AS-Path Attribute................................................................................................183

Regular Expressions as Filters..................................................................................................... 185

Redistributing Routes..................................................................................................................186

Enabling Additional Paths............................................................................................................187

Configuring IP Community Lists.................................................................................................187

Configuring an IP Extended Community List.............................................................................189

Filtering Routes with Community Lists...................................................................................... 190

Manipulating the COMMUNITY Attribute...................................................................................190

Changing MED Attributes............................................................................................................192

Changing the LOCAL_PREFERENCE Attribute...........................................................................192

Changing the NEXT_HOP Attribute............................................................................................193

Changing the WEIGHT Attribute.................................................................................................194

Enabling Multipath...................................................................................................................... 194

Filtering BGP Routes................................................................................................................... 194

Filtering BGP Routes Using Route Maps.................................................................................... 196

Filtering BGP Routes Using AS-PATH Information.................................................................... 197

Configuring BGP Route Reflectors............................................................................................. 197

Aggregating Routes.....................................................................................................................198

Configuring BGP Confederations...............................................................................................199

Enabling Route Flap Dampening................................................................................................ 199

Changing BGP Timers................................................................................................................ 202

Enabling BGP Neighbor Soft-Reconfiguration..........................................................................202

Route Map Continue.................................................................................................................. 204

Enabling MBGP Configurations....................................................................................................... 204

BGP Regular Expression Optimization.............................................................................................205

Debugging BGP................................................................................................................................ 205

Storing Last and Bad PDUs.........................................................................................................206

Capturing PDUs...........................................................................................................................207

PDU Counters.............................................................................................................................208

Sample Configurations.....................................................................................................................209

9 Content Addressable Memory (CAM)........................................................... 215

CAM Allocation..................................................................................................................................215

Test CAM Usage................................................................................................................................ 217

View CAM Profiles............................................................................................................................. 217

View CAM-ACL Settings....................................................................................................................218

View CAM Usage...............................................................................................................................220

CAM Optimization............................................................................................................................ 220

Troubleshoot CAM Profiling............................................................................................................. 221

CAM Profile Mismatches............................................................................................................. 221

QoS CAM Region Limitation....................................................................................................... 221

Syslog Error When the Table is Full............................................................................................ 221

Syslog Warning Upon 90 Percent Utilization of CAM............................................................... 222

Syslog Warning for Discrepancies Between Configured Extended Prefixes............................ 222

10 Control Plane Policing (CoPP).....................................................................223

Configure Control Plane Policing.................................................................................................... 224

Configuring CoPP for Protocols.................................................................................................225

Configuring CoPP for CPU Queues........................................................................................... 227

Show Commands....................................................................................................................... 228

11 Data Center Bridging (DCB)..........................................................................230

Ethernet Enhancements in Data Center Bridging........................................................................... 230

Priority-Based Flow Control....................................................................................................... 231

Enhanced Transmission Selection..............................................................................................233

Data Center Bridging Exchange Protocol (DCBx)..................................................................... 235

Data Center Bridging in a Traffic Flow....................................................................................... 235

Enabling Data Center Bridging.........................................................................................................236

QoS dot1p Traffic Classification and Queue Assignment...............................................................236

SNMP Support for PFC and Buffer Statistics Tracking.....................................................................237

Configuring Priority-Based Flow Control........................................................................................238

Configuring Lossless Queues.....................................................................................................240

Configuring the PFC Buffer in a Switch Stack............................................................................241

Configure Enhanced Transmission Selection..................................................................................242

ETS Prerequisites and Restrictions............................................................................................. 242

Creating a QoS DCB Output Policy........................................................................................... 243

Creating an ETS Priority Group.................................................................................................. 245

Applying an ETS Output Policy for a Priority Group to an Interface........................................ 246

ETS Operation with DCBx...........................................................................................................247

Configuring Bandwidth Allocation for DCBx CIN..................................................................... 248

Applying DCB Policies in a Switch Stack......................................................................................... 248

Applying DCB Policies with an ETS Configuration..........................................................................249

Configure a DCBx Operation........................................................................................................... 249

DCBx Operation..........................................................................................................................250

DCBx Port Roles..........................................................................................................................250

DCB Configuration Exchange.................................................................................................... 252

Configuration Source Election................................................................................................... 252

Propagation of DCB Information............................................................................................... 253

Auto-Detection and Manual Configuration of the DCBx Version............................................ 253

Behavior of Tagged Packets....................................................................................................... 254

Configuration Example for DSCP and PFC Priorities.................................................................254

DCBx Example.............................................................................................................................255

DCBx Prerequisites and Restrictions..........................................................................................256

Configuring DCBx.......................................................................................................................256

Verifying the DCB Configuration..................................................................................................... 260

Generation of PFC for a Priority for Untagged Packets...................................................................271

Operations on Untagged Packets.................................................................................................... 272

Performing PFC Using DSCP Bits Instead of 802.1p Bits.................................................................272

PFC and ETS Configuration Examples............................................................................................. 273

Using PFC and ETS to Manage Data Center Traffic.........................................................................273

PFC and ETS Configuration Command Examples.....................................................................275

Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 276

Hierarchical Scheduling in ETS Output Policies........................................................................ 276

Configuring DCB Maps and its Attributes.........................................................................................277

DCB Map: Configuration Procedure.......................................................................................... 277

Important Points to Remember..................................................................................................278

Applying a DCB Map on a Port................................................................................................... 278

Configuring PFC without a DCB Map........................................................................................ 279

Configuring Lossless Queues.....................................................................................................280

Data Center Bridging: Default Configuration.................................................................................. 281

Configuring PFC and ETS in a DCB Map..........................................................................................281

PFC Configuration Notes............................................................................................................281

PFC Prerequisites and Restrictions.............................................................................................282

ETS Configuration Notes............................................................................................................ 283

ETS Prerequisites and Restrictions............................................................................................. 283

Priority-Based Flow Control Using Dynamic Buffer Method..........................................................284

Pause and Resume of Traffic......................................................................................................284

Buffer Sizes for Lossless or PFC Packets....................................................................................285

Interworking of DCB Map With DCB Buffer Threshold Settings.....................................................285

Configuring the Dynamic Buffer Method........................................................................................286

Applying a DCB Map in a Switch Stack ...........................................................................................288

12 Dynamic Host Configuration Protocol (DHCP)........................................289

DHCP Packet Format and Options.................................................................................................. 289

Assign an IP Address using DHCP.................................................................................................... 291

Implementation Information............................................................................................................292

Configure the System to be a DHCP Server....................................................................................293

Configuring the Server for Automatic Address Allocation........................................................ 293

Specifying a Default Gateway.....................................................................................................295

Configure a Method of Hostname Resolution.......................................................................... 295

Using DNS for Address Resolution.............................................................................................295

Using NetBIOS WINS for Address Resolution............................................................................ 295

Creating Manual Binding Entries................................................................................................296

Debugging the DHCP Server......................................................................................................296

Using DHCP Clear Commands.................................................................................................. 296

Configure the System to be a DHCP Client.....................................................................................297

Configuring the DHCP Client System........................................................................................ 297

DHCP Client on a Management Interface................................................................................. 299

DHCP Client Operation with Other Features............................................................................ 299

Configure the System for User Port Stacking (Option 230)........................................................... 300

Configure Secure DHCP...................................................................................................................301

Option 82.....................................................................................................................................301

DHCP Snooping..........................................................................................................................302

Drop DHCP Packets on Snooped VLANs Only..........................................................................304

Dynamic ARP Inspection............................................................................................................ 304

Configuring Dynamic ARP Inspection....................................................................................... 305

Source Address Validation................................................................................................................306

Enabling IP Source Address Validation...................................................................................... 306

DHCP MAC Source Address Validation......................................................................................307

Enabling IP+MAC Source Address Validation............................................................................ 307

13 Equal Cost Multi-Path (ECMP)..................................................................... 309

ECMP for Flow-Based Affinity..........................................................................................................309

Configuring the Hash Algorithm................................................................................................309

Enabling Deterministic ECMP Next Hop....................................................................................309

Configuring the Hash Algorithm Seed....................................................................................... 310

Link Bundle Monitoring.....................................................................................................................310

Managing ECMP Group Paths..................................................................................................... 311

Creating an ECMP Group Bundle............................................................................................... 312

Modifying the ECMP Group Threshold.......................................................................................312

Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table................. 313

Support for ECMP in host table.................................................................................................. 313

Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes .................................................. 314

14 FCoE Transit.....................................................................................................315

Fibre Channel over Ethernet.............................................................................................................315

Ensure Robustness in a Converged Ethernet Network................................................................... 315

FIP Snooping on Ethernet Bridges....................................................................................................317

FIP Snooping in a Switch Stack.........................................................................................................319

Using FIP Snooping........................................................................................................................... 319

FIP Snooping Prerequisites......................................................................................................... 319

Important Points to Remember................................................................................................. 320

Enabling the FCoE Transit Feature.............................................................................................320

Enable FIP Snooping on VLANs.................................................................................................. 321

Configure the FC-MAP Value......................................................................................................321

Configure a Port for a Bridge-to-Bridge Link............................................................................ 321

Configure a Port for a Bridge-to-FCF Link.................................................................................321

Impact on Other Software Features........................................................................................... 321

FIP Snooping Restrictions...........................................................................................................322

Configuring FIP Snooping...........................................................................................................322

Displaying FIP Snooping Information...............................................................................................323

FCoE Transit Configuration Example...............................................................................................329

15 Flex Hash and Optimized Boot-Up..............................................................331

Flex Hash Capability Overview..........................................................................................................331

Configuring the Flex Hash Mechanism............................................................................................ 331

Configuring Fast Boot and LACP Fast Switchover...........................................................................332

Optimizing the Boot Time................................................................................................................332

Booting Process When Optimized Boot Time Mechanism is Enabled.....................................333

Guidelines for Configuring Optimized Booting Mechanism.....................................................333

Interoperation of Applications with Fast Boot and System States..................................................334

LACP and IPv4 Routing...............................................................................................................334

LACP and IPv6 Routing............................................................................................................... 335

BGP Graceful Restart.................................................................................................................. 335

Cold Boot Caused by Power Cycling the System..................................................................... 335

Unexpected Reload of the System.............................................................................................335

Software Upgrade....................................................................................................................... 336

LACP Fast Switchover................................................................................................................. 336

Changes to BGP Multipath......................................................................................................... 336

Delayed Installation of ECMP Routes Into BGP.........................................................................336

RDMA Over Converged Ethernet (RoCE) Overview........................................................................ 337

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.............................................................338

16 Force10 Resilient Ring Protocol (FRRP).....................................................339

Protocol Overview............................................................................................................................339

Ring Status.................................................................................................................................. 340

Multiple FRRP Rings.....................................................................................................................341

Important FRRP Points................................................................................................................ 341

Important FRRP Concepts.......................................................................................................... 341

Implementing FRRP.......................................................................................................................... 343

FRRP Configuration.......................................................................................................................... 343

Creating the FRRP Group........................................................................................................... 343

Configuring the Control VLAN...................................................................................................344

Configuring and Adding the Member VLANs.............................................................................345

Setting the FRRP Timers............................................................................................................. 346

Clearing the FRRP Counters....................................................................................................... 347

Viewing the FRRP Configuration................................................................................................ 347

Viewing the FRRP Information....................................................................................................347

Troubleshooting FRRP......................................................................................................................348

Configuration Checks.................................................................................................................348

Sample Configuration and Topology.............................................................................................. 348

17 GARP VLAN Registration Protocol (GVRP)................................................ 350

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

Configure GVRP................................................................................................................................ 351

Related Configuration Tasks....................................................................................................... 351

Enabling GVRP Globally....................................................................................................................352

Enabling GVRP on a Layer 2 Interface............................................................................................. 352

Configure GVRP Registration........................................................................................................... 352

Configure a GARP Timer...................................................................................................................353

18 Internet Group Management Protocol (IGMP).........................................355

IGMP Implementation Information..................................................................................................355

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

IGMP Version 2............................................................................................................................355

IGMP Version 3............................................................................................................................357

Configure IGMP................................................................................................................................ 360

Related Configuration Tasks...................................................................................................... 360

Viewing IGMP Enabled Interfaces.....................................................................................................361

Selecting an IGMP Version................................................................................................................361

Viewing IGMP Groups.......................................................................................................................362

Adjusting Timers............................................................................................................................... 362

Adjusting Query and Response Timers......................................................................................362

Adjusting the IGMP Querier Timeout Value...............................................................................363

Configuring a Static IGMP Group.....................................................................................................363

Enabling IGMP Immediate-Leave.................................................................................................... 364

IGMP Snooping.................................................................................................................................364

IGMP Snooping Implementation Information...........................................................................364

Configuring IGMP Snooping...................................................................................................... 364

Removing a Group-Port Association......................................................................................... 365

Disabling Multicast Flooding...................................................................................................... 365

Specifying a Port as Connected to a Multicast Router..............................................................366

Configuring the Switch as Querier.............................................................................................366

Fast Convergence after MSTP Topology Changes..........................................................................367

Egress Interface Selection (EIS) for HTTP and IGMP Applications..................................................367

Protocol Separation....................................................................................................................368

Enabling and Disabling Management Egress Interface Selection.............................................369

Handling of Management Route Configuration........................................................................370

Handling of Switch-Initiated Traffic........................................................................................... 370

Handling of Switch-Destined Traffic.......................................................................................... 371

Handling of Transit Traffic (Traffic Separation).......................................................................... 372

Mapping of Management Applications and Traffic Type...........................................................372

Behavior of Various Applications for Switch-Initiated Traffic ...................................................373

Behavior of Various Applications for Switch-Destined Traffic ................................................. 374

Interworking of EIS With Various Applications...........................................................................375

Designating a Multicast Router Interface.........................................................................................376

19 Interfaces......................................................................................................... 377

Basic Interface Configuration........................................................................................................... 377

Advanced Interface Configuration................................................................................................... 377

Interface Types..................................................................................................................................378

View Basic Interface Information..................................................................................................... 378

Enabling a Physical Interface........................................................................................................... 380

Physical Interfaces............................................................................................................................380

Configuration Task List for Physical Interfaces..........................................................................381

40G to 1G Breakout Cable Adaptor............................................................................................381

Overview of Layer Modes........................................................................................................... 381

Configuring Layer 2 (Data Link) Mode....................................................................................... 382

Configuring Layer 2 (Interface) Mode........................................................................................382

Configuring Layer 3 (Network) Mode.........................................................................................383

Configuring Layer 3 (Interface) Mode........................................................................................ 383

Egress Interface Selection (EIS)........................................................................................................384

Important Points to Remember................................................................................................. 384

Configuring EIS........................................................................................................................... 385

Management Interfaces....................................................................................................................385

Configuring Management Interfaces......................................................................................... 385

Configuring Management Interfaces on the S-Series...............................................................386

VLAN Interfaces................................................................................................................................ 386

Loopback Interfaces......................................................................................................................... 387

Null Interfaces...................................................................................................................................388

Port Channel Interfaces....................................................................................................................388

Port Channel Definition and Standards..................................................................................... 388

Port Channel Benefits.................................................................................................................389

Port Channel Implementation....................................................................................................389

10/100/1000 Mbps Interfaces in Port Channels........................................................................389

Configuration Tasks for Port Channel Interfaces......................................................................390

Creating a Port Channel.............................................................................................................390

Adding a Physical Interface to a Port Channel...........................................................................391

Reassigning an Interface to a New Port Channel......................................................................393

Configuring the Minimum Oper Up Links in a Port Channel....................................................393

.....................................................................................................................................................394

Assigning an IP Address to a Port Channel................................................................................394

Deleting or Disabling a Port Channel.........................................................................................395

Load Balancing Through Port Channels....................................................................................395

Load-Balancing on the S- Series................................................................................................395

Changing the Hash Algorithm....................................................................................................396

Bulk Configuration............................................................................................................................397

Interface Range........................................................................................................................... 397

Bulk Configuration Examples..................................................................................................... 398

Defining Interface Range Macros.................................................................................................... 399

Define the Interface Range.........................................................................................................399

Choosing an Interface-Range Macro........................................................................................400

Monitoring and Maintaining Interfaces........................................................................................... 400

Maintenance Using TDR............................................................................................................. 401

Splitting QSFP Ports to SFP+ Ports.................................................................................................. 402

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................402

Important Points to Remember................................................................................................. 403

Support for LM4 Optics..............................................................................................................404

Example Scenarios......................................................................................................................404

Link Dampening............................................................................................................................... 408

Important Points to Remember.................................................................................................408

Enabling Link Dampening.......................................................................................................... 408

Link Bundle Monitoring.....................................................................................................................410

Using Ethernet Pause Frames for Flow Control.............................................................................. 410

Threshold Settings....................................................................................................................... 411

Enabling Pause Frames................................................................................................................411

Configure the MTU Size on an Interface..........................................................................................412

Port-Pipes..........................................................................................................................................413

Auto-Negotiation on Ethernet Interfaces........................................................................................ 413

Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................414

Set Auto-Negotiation Options....................................................................................................415

View Advanced Interface Information..............................................................................................416

Configuring the Interface Sampling Size....................................................................................417

Dynamic Counters............................................................................................................................ 418

Clearing Interface Counters....................................................................................................... 418

Enhanced Validation of Interface Ranges........................................................................................419

Compressing Configuration Files.....................................................................................................419

20 IPv4 Routing................................................................................................... 423

IP Addresses...................................................................................................................................... 423

Implementation Information......................................................................................................423

Configuration Tasks for IP Addresses.............................................................................................. 423

Assigning IP Addresses to an Interface............................................................................................424

Configuring Static Routes.................................................................................................................425

Configure Static Routes for the Management Interface.................................................................426

Using the Configured Source IP Address in ICMP Messages..........................................................427

Configuring the ICMP Source Interface.....................................................................................427

Configuring the Duration to Establish a TCP Connection..............................................................427

Enabling Directed Broadcast............................................................................................................428

Resolution of Host Names............................................................................................................... 428

Enabling Dynamic Resolution of Host Names................................................................................ 429

Specifying the Local System Domain and a List of Domains..........................................................429

Configuring DNS with Traceroute................................................................................................... 430

ARP.....................................................................................................................................................431

Configuration Tasks for ARP.............................................................................................................431

Configuring Static ARP Entries..........................................................................................................431

Enabling Proxy ARP...........................................................................................................................432

Clearing ARP Cache..........................................................................................................................432

ARP Learning via Gratuitous ARP..................................................................................................... 433

Enabling ARP Learning via Gratuitous ARP...................................................................................... 433

ARP Learning via ARP Request......................................................................................................... 433

Configuring ARP Retries................................................................................................................... 434

ICMP.................................................................................................................................................. 435

Configuration Tasks for ICMP.......................................................................................................... 435

Enabling ICMP Unreachable Messages............................................................................................435

UDP Helper....................................................................................................................................... 436

Configure UDP Helper................................................................................................................436

Important Points to Remember................................................................................................. 436

Enabling UDP Helper........................................................................................................................436

Configuring a Broadcast Address.....................................................................................................437

Configurations Using UDP Helper....................................................................................................437

UDP Helper with Broadcast-All Addresses...................................................................................... 437

UDP Helper with Subnet Broadcast Addresses............................................................................... 438

UDP Helper with Configured Broadcast Addresses........................................................................ 439

UDP Helper with No Configured Broadcast Addresses.................................................................. 439

Troubleshooting UDP Helper.......................................................................................................... 440

21 IPv6 Routing....................................................................................................441

Protocol Overview............................................................................................................................ 441

Extended Address Space.............................................................................................................441

Stateless Autoconfiguration........................................................................................................441

IPv6 Headers............................................................................................................................... 442

Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support.............................................. 442

IPv6 Header Fields...................................................................................................................... 444

Extension Header Fields............................................................................................................. 445

Addressing...................................................................................................................................446

Implementing IPv6 with Dell Networking OS................................................................................. 448

ICMPv6..............................................................................................................................................450

Path MTU Discovery......................................................................................................................... 450

IPv6 Neighbor Discovery.................................................................................................................. 451

IPv6 Neighbor Discovery of MTU Packets................................................................................. 452

Configuring the IPv6 Recursive DNS Server.............................................................................. 452

Debugging IPv6 RDNSS Information Sent to the Host .............................................................453

Displaying IPv6 RDNSS Information...........................................................................................453

Secure Shell (SSH) Over an IPv6 Transport......................................................................................454

Configuration Tasks for IPv6............................................................................................................454

Adjusting Your CAM-Profile........................................................................................................455

Assigning an IPv6 Address to an Interface.................................................................................455

Assigning a Static IPv6 Route..................................................................................................... 456

Configuring Telnet with IPv6......................................................................................................457

SNMP over IPv6...........................................................................................................................457

Showing IPv6 Information.......................................................................................................... 457

Showing an IPv6 Interface..........................................................................................................458

Showing IPv6 Routes..................................................................................................................459

Showing the Running-Configuration for an Interface..............................................................460

Clearing IPv6 Routes.................................................................................................................. 460

22 iSCSI Optimization.........................................................................................462

iSCSI Optimization Overview........................................................................................................... 462

Monitoring iSCSI Traffic Flows................................................................................................... 464

Application of Quality of Service to iSCSI Traffic Flows............................................................464

Information Monitored in iSCSI Traffic Flows............................................................................464

Detection and Auto-Configuration for Dell EqualLogic Arrays................................................ 465

Configuring Detection and Ports for Dell Compellent Arrays..................................................466

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................466

Enable and Disable iSCSI Optimization..................................................................................... 466

Default iSCSI Optimization Values................................................................................................... 467

iSCSI Optimization Prerequisites..................................................................................................... 468

Configuring iSCSI Optimization.......................................................................................................468

Displaying iSCSI Optimization Information..................................................................................... 470

23 Intermediate System to Intermediate System.......................................... 472

IS-IS Protocol Overview................................................................................................................... 472

IS-IS Addressing................................................................................................................................ 472

Multi-Topology IS-IS.........................................................................................................................473

Transition Mode.......................................................................................................................... 474

Interface Support........................................................................................................................ 474

Adjacencies................................................................................................................................. 474

Graceful Restart................................................................................................................................ 474

Timers.......................................................................................................................................... 475

Implementation Information............................................................................................................ 475

Configuration Information............................................................................................................... 476

Configuration Tasks for IS-IS......................................................................................................476

Configuring the Distance of a Route......................................................................................... 485

Changing the IS-Type.................................................................................................................485

Redistributing IPv4 Routes......................................................................................................... 488

Redistributing IPv6 Routes......................................................................................................... 489

Configuring Authentication Passwords..................................................................................... 490

Setting the Overload Bit............................................................................................................. 490

Debugging IS-IS.......................................................................................................................... 491

IS-IS Metric Styles............................................................................................................................. 492

Configure Metric Values...................................................................................................................492

Maximum Values in the Routing Table...................................................................................... 493

Change the IS-IS Metric Style in One Level Only......................................................................493

Leaks from One Level to Another.............................................................................................. 495

Sample Configurations.....................................................................................................................495

24 Link Aggregation Control Protocol (LACP).............................................. 498

Introduction to Dynamic LAGs and LACP....................................................................................... 498

Important Points to Remember................................................................................................. 498

LACP Modes................................................................................................................................499

Configuring LACP Commands...................................................................................................499

LACP Configuration Tasks................................................................................................................500

Creating a LAG............................................................................................................................500

Configuring the LAG Interfaces as Dynamic..............................................................................501

Setting the LACP Long Timeout................................................................................................. 501

Monitoring and Debugging LACP.............................................................................................. 502

Shared LAG State Tracking...............................................................................................................502

Configuring Shared LAG State Tracking.................................................................................... 503

Important Points about Shared LAG State Tracking..................................................................504

LACP Basic Configuration Example................................................................................................. 505

Configure a LAG on ALPHA........................................................................................................505

25 Layer 2...............................................................................................................513

Manage the MAC Address Table.......................................................................................................513

Clearing the MAC Address Table................................................................................................ 513

Setting the Aging Time for Dynamic Entries.............................................................................. 513

Configuring a Static MAC Address..............................................................................................514

Displaying the MAC Address Table.............................................................................................514

MAC Learning Limit...........................................................................................................................514

Setting the MAC Learning Limit.................................................................................................. 515

mac learning-limit Dynamic....................................................................................................... 515

mac learning-limit mac-address-sticky..................................................................................... 516

mac learning-limit station-move................................................................................................516

mac learning-limit no-station-move......................................................................................... 516

Learning Limit Violation Actions................................................................................................. 517

Setting Station Move Violation Actions.......................................................................................517

Recovering from Learning Limit and Station Move Violations.................................................. 518

NIC Teaming..................................................................................................................................... 518

Configure Redundant Pairs...............................................................................................................519

Important Points about Configuring Redundant Pairs...............................................................521

Far-End Failure Detection.................................................................................................................522

FEFD State Changes....................................................................................................................523

Configuring FEFD........................................................................................................................524

Enabling FEFD on an Interface................................................................................................... 525

Debugging FEFD......................................................................................................................... 526

26 Link Layer Discovery Protocol (LLDP)........................................................528

802.1AB (LLDP) Overview.................................................................................................................528

Protocol Data Units.....................................................................................................................528

Optional TLVs....................................................................................................................................529

Management TLVs...................................................................................................................... 529

TIA-1057 (LLDP-MED) Overview...................................................................................................... 531

TIA Organizationally Specific TLVs.............................................................................................532

Configure LLDP.................................................................................................................................536

Related Configuration Tasks.......................................................................................................536

Important Points to Remember..................................................................................................537

LLDP Compatibility......................................................................................................................537

CONFIGURATION versus INTERFACE Configurations.................................................................... 537

Enabling LLDP...................................................................................................................................538

Disabling and Undoing LLDP......................................................................................................538

Enabling LLDP on Management Ports............................................................................................. 538

Disabling and Undoing LLDP on Management Ports................................................................538

Advertising TLVs................................................................................................................................539

Viewing the LLDP Configuration......................................................................................................540

Viewing Information Advertised by Adjacent LLDP Agents.............................................................541

Configuring LLDPDU Intervals......................................................................................................... 542

Configuring Transmit and Receive Mode........................................................................................ 542

Configuring a Time to Live............................................................................................................... 543

Debugging LLDP...............................................................................................................................544

Relevant Management Objects........................................................................................................545

27 Microsoft Network Load Balancing............................................................ 551

NLB Unicast Mode Scenario............................................................................................................. 551

NLB Multicast Mode Scenario.......................................................................................................... 552

Limitations With Enabling NLB on Switches.................................................................................... 552

Benefits and Working of Microsoft Clustering.................................................................................552

Enable and Disable VLAN Flooding .................................................................................................553

Configuring a Switch for NLB ..........................................................................................................553

..................................................................................................................................................... 553

28 Multicast Source Discovery Protocol (MSDP)...........................................554

Protocol Overview............................................................................................................................554

Anycast RP.........................................................................................................................................556

Implementation Information............................................................................................................556

Configure Multicast Source Discovery Protocol............................................................................. 556

Related Configuration Tasks.......................................................................................................556

Enable MSDP.....................................................................................................................................560

Manage the Source-Active Cache....................................................................................................561

Viewing the Source-Active Cache..............................................................................................561

Limiting the Source-Active Cache............................................................................................. 562

Clearing the Source-Active Cache.............................................................................................562

Enabling the Rejected Source-Active Cache.............................................................................562

Accept Source-Active Messages that Fail the RFP Check...............................................................562

Specifying Source-Active Messages................................................................................................ 566

Limiting the Source-Active Messages from a Peer..........................................................................567

Preventing MSDP from Caching a Local Source............................................................................. 567

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

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

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

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

Clearing Peer Statistics..................................................................................................................... 570

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

MSDP with Anycast RP...................................................................................................................... 571

Configuring Anycast RP.................................................................................................................... 573

Reducing Source-Active Message Flooding.............................................................................. 573

Specifying the RP Address Used in SA Messages.......................................................................573

MSDP Sample Configurations.......................................................................................................... 576

29 Multiple Spanning Tree Protocol (MSTP).................................................. 579

Protocol Overview............................................................................................................................ 579

Spanning Tree Variations..................................................................................................................580

Implementation Information......................................................................................................580

Configure Multiple Spanning Tree Protocol....................................................................................580

Related Configuration Tasks...................................................................................................... 580

Enable Multiple Spanning Tree Globally.......................................................................................... 581

Adding and Removing Interfaces..................................................................................................... 581

Creating Multiple Spanning Tree Instances..................................................................................... 581

Influencing MSTP Root Selection.....................................................................................................583

Interoperate with Non-Dell Networking OS Bridges...................................................................... 583

Changing the Region Name or Revision......................................................................................... 584

Modifying Global Parameters...........................................................................................................584

Modifying the Interface Parameters.................................................................................................585

Configuring an EdgePort..................................................................................................................586

Flush MAC Addresses after a Topology Change............................................................................. 587

MSTP Sample Configurations...........................................................................................................587

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

ConfigurationSFTOS Example Running-Configuration............................................................ 588

Debugging and Verifying MSTP Configurations.............................................................................. 591

30 Multicast Features..........................................................................................594

Enabling IP Multicast........................................................................................................................ 594

Multicast with ECMP.........................................................................................................................594

Implementation Information............................................................................................................595

First Packet Forwarding for Lossless Multicast................................................................................596

Multicast Policies.............................................................................................................................. 596

IPv4 Multicast Policies................................................................................................................ 596

31 Open Shortest Path First (OSPFv2 and OSPFv3).......................................605

Protocol Overview............................................................................................................................605

Autonomous System (AS) Areas.................................................................................................605

Area Types...................................................................................................................................606

Networks and Neighbors............................................................................................................607

Router Types............................................................................................................................... 607

Designated and Backup Designated Routers............................................................................ 609

Link-State Advertisements (LSAs)...............................................................................................609

Router Priority and Cost.............................................................................................................. 611

OSPF with Dell Networking OS.........................................................................................................611

Graceful Restart...........................................................................................................................612

Fast Convergence (OSPFv2, IPv4 Only)......................................................................................613

Multi-Process OSPFv2 (IPv4 only).............................................................................................. 613

RFC-2328 Compliant OSPF Flooding........................................................................................ 614

OSPF ACK Packing.......................................................................................................................615

Setting OSPF Adjacency with Cisco Routers..............................................................................615

Configuration Information................................................................................................................616

Configuration Task List for OSPFv2 (OSPF for IPv4)..................................................................616

Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................632

Enabling IPv6 Unicast Routing................................................................................................... 633

Assigning IPv6 Addresses on an Interface................................................................................. 633

Assigning Area ID on an Interface.............................................................................................. 633

Assigning OSPFv3 Process ID and Router ID Globally.............................................................. 634

Configuring Stub Areas...............................................................................................................634

Configuring Passive-Interface....................................................................................................634

Redistributing Routes..................................................................................................................635

Configuring a Default Route.......................................................................................................635

Enabling OSPFv3 Graceful Restart............................................................................................. 636

OSPFv3 Authentication Using IPsec...........................................................................................638

Troubleshooting OSPFv3............................................................................................................645

32 Policy-based Routing (PBR)......................................................................... 647

Overview........................................................................................................................................... 647

Implementing Policy-based Routing with Dell Networking OS.....................................................649

Configuration Task List for Policy-based Routing.......................................................................... 649

PBR Exceptions (Permit)............................................................................................................. 652

Sample Configuration.......................................................................................................................654

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View

Redirect-List GOLD.....................................................................................................................655

33 PIM Sparse-Mode (PIM-SM)......................................................................... 657

Implementation Information............................................................................................................ 657

Protocol Overview............................................................................................................................ 657

Requesting Multicast Traffic....................................................................................................... 657

Refuse Multicast Traffic.............................................................................................................. 658

Send Multicast Traffic................................................................................................................. 658

Configuring PIM-SM.........................................................................................................................659

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

Enable PIM-SM..................................................................................................................................659

Configuring S,G Expiry Timers.........................................................................................................660

Configuring a Static Rendezvous Point............................................................................................661

Overriding Bootstrap Router Updates....................................................................................... 662

Configuring a Designated Router.................................................................................................... 662

Creating Multicast Boundaries and Domains.................................................................................. 663

Enabling PIM-SM Graceful Restart...................................................................................................663

34 PIM Source-Specific Mode (PIM-SSM).......................................................664

Implementation Information............................................................................................................664

Important Points to Remember................................................................................................. 664

Configure PIM-SMM.........................................................................................................................665

Related Configuration Tasks...................................................................................................... 665

Enabling PIM-SSM............................................................................................................................ 665

Use PIM-SSM with IGMP Version 2 Hosts....................................................................................... 665

Configuring PIM-SSM with IGMPv2........................................................................................... 666

35 Port Monitoring..............................................................................................668

Important Points to Remember.......................................................................................................668

Port Monitoring................................................................................................................................ 669

Configuring Port Monitoring............................................................................................................670

Enabling Flow-Based Monitoring.....................................................................................................672

Remote Port Mirroring......................................................................................................................673

Remote Port Mirroring Example.................................................................................................673

Configuring Remote Port Mirroring........................................................................................... 674

Displaying Remote-Port Mirroring Configurations................................................................... 676

Configuring the Sample Remote Port Mirroring........................................................................676

Configuring the Encapsulated Remote Port Mirroring...................................................................680

Configuration steps for ERPM ...................................................................................................680

ERPM Behavior on a typical Dell Networking OS ...........................................................................682

Decapsulation of ERPM packets at the Destination IP/ Analyzer............................................. 682

36 Per-VLAN Spanning Tree Plus (PVST+)......................................................684

Protocol Overview............................................................................................................................684

Implementation Information............................................................................................................685

Configure Per-VLAN Spanning Tree Plus........................................................................................ 685

Related Configuration Tasks...................................................................................................... 685

Enabling PVST+.................................................................................................................................685

Disabling PVST+............................................................................................................................... 686

Influencing PVST+ Root Selection...................................................................................................686

Modifying Global PVST+ Parameters...............................................................................................688

Modifying Interface PVST+ Parameters...........................................................................................689

Configuring an EdgePort................................................................................................................. 690

PVST+ in Multi-Vendor Networks.................................................................................................... 691

Enabling PVST+ Extend System ID...................................................................................................691

PVST+ Sample Configurations.........................................................................................................692

37 Quality of Service (QoS)................................................................................694

Implementation Information............................................................................................................696

Port-Based QoS Configurations...................................................................................................... 696

Setting dot1p Priorities for Incoming Traffic..............................................................................697

Honoring dot1p Priorities on Ingress Traffic..............................................................................697

Configuring Port-Based Rate Policing.......................................................................................698

Configuring Port-Based Rate Shaping.......................................................................................698

Policy-Based QoS Configurations................................................................................................... 699

Classify Traffic.............................................................................................................................700

Dot1p to Queue Mapping Requirement.....................................................................................703

Create a QoS Policy....................................................................................................................704

DSCP Color Maps....................................................................................................................... 706

Create Policy Maps..................................................................................................................... 708

Enabling QoS Rate Adjustment.........................................................................................................712

Enabling Strict-Priority Queueing.....................................................................................................713

Queue Classification Requirements for PFC Functionality..............................................................713

Support for marking dot1p value in L3 Input Qos Policy.................................................................714

Weighted Random Early Detection.................................................................................................. 714

Creating WRED Profiles...............................................................................................................715

Applying a WRED Profile to Traffic............................................................................................. 716

Displaying Default and Configured WRED Profiles....................................................................716

Displaying WRED Drop Statistics................................................................................................ 716

Pre-Calculating Available QoS CAM Space......................................................................................716

Specifying Policy-Based Rate Shaping in Packets Per Second........................................................717

Configuring Policy-Based Rate Shaping.......................................................................................... 718

Configuring Weights and ECN for WRED ........................................................................................719

Global Service Pools With WRED and ECN Settings................................................................. 720

Configuring WRED and ECN Attributes............................................................................................721

Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................ 722

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.......... 723

Classifying Incoming Packets Using ECN and Color-Marking..................................................723

Sample configuration to mark non-ecn packets as “yellow” with single traffic class..............726

Applying Layer 2 Match Criteria on a Layer 3 Interface...................................................................727

Managing Hardware Buffer Statistics..........................................................................................727

Enabling Buffer Statistics Tracking .................................................................................................. 728

38 Routing Information Protocol (RIP)........................................................... 729

Protocol Overview............................................................................................................................ 729

RIPv1............................................................................................................................................ 729

RIPv2............................................................................................................................................729

Implementation Information............................................................................................................730

Configuration Information............................................................................................................... 730

Configuration Task List............................................................................................................... 730

RIP Configuration Example.........................................................................................................737

39 Remote Monitoring (RMON)........................................................................743

Implementation Information............................................................................................................ 743

Fault Recovery...................................................................................................................................743

Setting the rmon Alarm...............................................................................................................744

Configuring an RMON Event...................................................................................................... 745

Configuring RMON Collection Statistics....................................................................................745

Configuring the RMON Collection History................................................................................746

40 Rapid Spanning Tree Protocol (RSTP)........................................................747

Protocol Overview............................................................................................................................ 747

Configuring Rapid Spanning Tree.................................................................................................... 747

Related Configuration Tasks.......................................................................................................747

Important Points to Remember....................................................................................................... 748

RSTP and VLT.............................................................................................................................. 748

Configuring Interfaces for Layer 2 Mode.........................................................................................748

Enabling Rapid Spanning Tree Protocol Globally............................................................................749

Adding and Removing Interfaces......................................................................................................751

Modifying Global Parameters........................................................................................................... 752

Enabling SNMP Traps for Root Elections and Topology Changes............................................753

Modifying Interface Parameters....................................................................................................... 753

Enabling SNMP Traps for Root Elections and Topology Changes................................................. 754

Influencing RSTP Root Selection......................................................................................................754

Configuring an EdgePort.................................................................................................................. 754

Configuring Fast Hellos for Link State Detection............................................................................ 755

41 Software-Defined Networking (SDN)......................................................... 757

42 Service Provider Bridging.............................................................................758

VLAN Stacking...................................................................................................................................758

Important Points to Remember..................................................................................................759

Configure VLAN Stacking........................................................................................................... 760

Creating Access and Trunk Ports............................................................................................... 760

Enable VLAN-Stacking for a VLAN..............................................................................................761

Configuring the Protocol Type Value for the Outer VLAN Tag.................................................761

Configuring Dell Networking OS Options for Trunk Ports........................................................ 761

Debugging VLAN Stacking..........................................................................................................762

VLAN Stacking in Multi-Vendor Networks................................................................................. 763

VLAN Stacking Packet Drop Precedence.........................................................................................766

Enabling Drop Eligibility..............................................................................................................766

Honoring the Incoming DEI Value............................................................................................. 767

Marking Egress Packets with a DEI Value...................................................................................768

Dynamic Mode CoS for VLAN Stacking...........................................................................................768

Mapping C-Tag to S-Tag dot1p Values......................................................................................770

Layer 2 Protocol Tunneling.............................................................................................................. 770

Implementation Information.......................................................................................................772

Enabling Layer 2 Protocol Tunneling......................................................................................... 773

Specifying a Destination MAC Address for BPDUs.....................................................................773

Setting Rate-Limit BPDUs........................................................................................................... 773

Debugging Layer 2 Protocol Tunneling..................................................................................... 774

Provider Backbone Bridging............................................................................................................. 774

43 sFlow.................................................................................................................775

Overview............................................................................................................................................775

Implementation Information............................................................................................................ 775

Important Points to Remember..................................................................................................776

Enabling Extended sFlow..................................................................................................................776

Enabling and Disabling sFlow on an Interface................................................................................. 777

sFlow Show Commands................................................................................................................... 777

Displaying Show sFlow Global.................................................................................................... 777

Displaying Show sFlow on an Interface..................................................................................... 778

Displaying Show sFlow on a Stack-unit..................................................................................... 778

Configuring Specify Collectors.........................................................................................................779

Changing the Polling Intervals..........................................................................................................779

Back-Off Mechanism........................................................................................................................ 779

sFlow on LAG ports...........................................................................................................................780

Enabling Extended sFlow................................................................................................................. 780

Important Points to Remember..................................................................................................781

44 Simple Network Management Protocol (SNMP)......................................783

Protocol Overview............................................................................................................................ 783

Implementation Information............................................................................................................783

SNMPv3 Compliance With FIPS........................................................................................................783

Configuration Task List for SNMP.................................................................................................... 785

Related Configuration Tasks.......................................................................................................785

Important Points to Remember....................................................................................................... 785

Set up SNMP......................................................................................................................................785

Creating a Community............................................................................................................... 786

Setting Up User-Based Security (SNMPv3)................................................................................ 786

Reading Managed Object Values......................................................................................................787

Writing Managed Object Values.......................................................................................................788

Configuring Contact and Location Information using SNMP.........................................................789

Subscribing to Managed Object Value Updates using SNMP.........................................................790

Enabling a Subset of SNMP Traps.....................................................................................................791

Copy Configuration Files Using SNMP.............................................................................................793

Copying a Configuration File......................................................................................................795

Copying Configuration Files via SNMP.......................................................................................795

Copying the Startup-Config Files to the Running-Config........................................................796

Copying the Startup-Config Files to the Server via FTP............................................................796

Copying the Startup-Config Files to the Server via TFTP..........................................................797

Copy a Binary File to the Startup-Configuration....................................................................... 797

Additional MIB Objects to View Copy Statistics.........................................................................798

Obtaining a Value for MIB Objects.............................................................................................798

Manage VLANs using SNMP............................................................................................................. 799

Creating a VLAN..........................................................................................................................799

Assigning a VLAN Alias................................................................................................................799

Displaying the Ports in a VLAN...................................................................................................800

Add Tagged and Untagged Ports to a VLAN............................................................................. 800

Managing Overload on Startup........................................................................................................ 801

Enabling and Disabling a Port using SNMP......................................................................................801

Fetch Dynamic MAC Entries using SNMP........................................................................................802

Deriving Interface Indices................................................................................................................ 804

Monitor Port-Channels.................................................................................................................... 805

Troubleshooting SNMP Operation.................................................................................................. 806

45 Storm Control.................................................................................................807

Configure Storm Control................................................................................................................. 807

Configuring Storm Control from INTERFACE Mode.................................................................807

Configuring Storm Control from CONFIGURATION Mode......................................................807

46 Spanning Tree Protocol (STP)..................................................................... 808

Protocol Overview............................................................................................................................808

Configure Spanning Tree.................................................................................................................808

Related Configuration Tasks...................................................................................................... 808

Important Points to Remember.......................................................................................................809

Configuring Interfaces for Layer 2 Mode........................................................................................ 809

Enabling Spanning Tree Protocol Globally......................................................................................810

Adding an Interface to the Spanning Tree Group............................................................................812

Modifying Global Parameters........................................................................................................... 813

Modifying Interface STP Parameters................................................................................................814

Enabling PortFast.............................................................................................................................. 814

Prevent Network Disruptions with BPDU Guard........................................................................815

Selecting STP Root............................................................................................................................817

STP Root Guard.................................................................................................................................818

Root Guard Scenario...................................................................................................................818

Configuring Root Guard............................................................................................................. 819

Enabling SNMP Traps for Root Elections and Topology Changes.................................................820

Configuring Spanning Trees as Hitless............................................................................................820

STP Loop Guard................................................................................................................................ 821

Configuring Loop Guard.............................................................................................................822

Displaying STP Guard Configuration............................................................................................... 823

47 System Time and Date.................................................................................. 824

Network Time Protocol....................................................................................................................824

Protocol Overview...................................................................................................................... 825

Configure the Network Time Protocol......................................................................................826

Enabling NTP...............................................................................................................................826

Setting the Hardware Clock with the Time Derived from NTP.................................................826

Configuring NTP Broadcasts...................................................................................................... 827

Disabling NTP on an Interface....................................................................................................827

Configuring a Source IP Address for NTP Packets.................................................................... 827

Configuring NTP Authentication................................................................................................828

Dell Networking OS Time and Date................................................................................................. 831

Configuration Task List ...............................................................................................................831

Setting the Time and Date for the Switch Hardware Clock...................................................... 831

Setting the Time and Date for the Switch Software Clock........................................................831

Setting the Timezone..................................................................................................................832

Set Daylight Saving Time............................................................................................................ 832

Setting Daylight Saving Time Once............................................................................................832

Setting Recurring Daylight Saving Time.....................................................................................833

48 Tunneling ....................................................................................................... 835

Configuring a Tunnel........................................................................................................................835

Configuring Tunnel Keepalive Settings............................................................................................836

Configuring a Tunnel Interface........................................................................................................ 837

Configuring Tunnel allow-remote Decapsulation.......................................................................... 837

Configuring Tunnel source anylocal Decapsulation.......................................................................838

Guidelines for Configuring Multipoint Receive-Only Tunnels....................................................... 838

Multipoint Receive-Only Type and IP Unnumbered Interfaces for Tunnels..................................839

49 Upgrade Procedures.....................................................................................840

Get Help with Upgrades...................................................................................................................840

50 Virtual LANs (VLANs)......................................................................................841

Default VLAN..................................................................................................................................... 841

Port-Based VLANs............................................................................................................................ 842

VLANs and Port Tagging...................................................................................................................842

Configuration Task List.....................................................................................................................843

Creating a Port-Based VLAN...................................................................................................... 843

Assigning Interfaces to a VLAN.................................................................................................. 844

Moving Untagged Interfaces...................................................................................................... 845

Assigning an IP Address to a VLAN.............................................................................................847

Configuring Native VLANs................................................................................................................847

Enabling Null VLAN as the Default VLAN.........................................................................................848

51 VLT Proxy Gateway........................................................................................849

Proxy Gateway in VLT Domains.......................................................................................................849

LLDP organizational TLV for proxy gateway.............................................................................. 851

Sample Configuration Scenario for VLT Proxy Gateway...........................................................852

Configuring a Static VLT Proxy Gateway.........................................................................................854

Configuring an LLDP VLT Proxy Gateway....................................................................................... 854

52 Virtual Link Trunking (VLT)...........................................................................856

Overview........................................................................................................................................... 856

VLT on Core Switches.................................................................................................................857

Enhanced VLT............................................................................................................................. 857

VLT Terminology.............................................................................................................................. 858

Configure Virtual Link Trunking....................................................................................................... 859

Important Points to Remember................................................................................................. 859

Configuration Notes...................................................................................................................860

Primary and Secondary VLT Peers............................................................................................. 864

RSTP and VLT..............................................................................................................................864

VLT Bandwidth Monitoring.........................................................................................................864

VLT and IGMP Snooping.............................................................................................................865

VLT IPv6.......................................................................................................................................865

VLT Port Delayed Restoration.................................................................................................... 865

PIM-Sparse Mode Support on VLT.............................................................................................866

VLT Routing ................................................................................................................................867

Non-VLT ARP Sync..................................................................................................................... 870

RSTP Configuration.......................................................................................................................... 870

Preventing Forwarding Loops in a VLT Domain........................................................................870

Sample RSTP Configuration........................................................................................................871

Configuring VLT...........................................................................................................................871

eVLT Configuration Example........................................................................................................... 882

eVLT Configuration Step Examples............................................................................................883

PIM-Sparse Mode Configuration Example...................................................................................... 885

Verifying a VLT Configuration..........................................................................................................886

Additional VLT Sample Configurations............................................................................................889

Configuring Virtual Link Trunking (VLT Peer 1)Configuring Virtual Link Trunking (VLT Peer

2)Verifying a Port-Channel Connection to a VLT Domain (From an Attached Access

Switch).........................................................................................................................................890

Troubleshooting VLT........................................................................................................................892

Reconfiguring Stacked Switches as VLT..........................................................................................893

Specifying VLT Nodes in a PVLAN................................................................................................... 894

Association of VLTi as a Member of a PVLAN............................................................................895

MAC Synchronization for VLT Nodes in a PVLAN..................................................................... 895

PVLAN Operations When One VLT Peer is Down..................................................................... 895

PVLAN Operations When a VLT Peer is Restarted.....................................................................896

Interoperation of VLT Nodes in a PVLAN with ARP Requests...................................................896

Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN....... 896

Configuring a VLT VLAN or LAG in a PVLAN................................................................................... 898

Creating a VLT LAG or a VLT VLAN............................................................................................898

Associating the VLT LAG or VLT VLAN in a PVLAN................................................................... 899

Proxy ARP Capability on VLT Peer Nodes....................................................................................... 900

Working of Proxy ARP for VLT Peer Nodes................................................................................901

VLT Nodes as Rendezvous Points for Multicast Resiliency.............................................................902

53 Virtual Extensible LAN (VXLAN)...................................................................903

Overview........................................................................................................................................... 903

Components of VXLAN network......................................................................................................903

Components of VXLAN network................................................................................................903

Functional Overview of VXLAN Gateway.........................................................................................905

VXLAN Frame Format....................................................................................................................... 905

Components of VXLAN Frame Format......................................................................................906

Configuring and Controlling VXLAN from the NVP Controller GUI...............................................906

Configuring VxLAN Gateway........................................................................................................... 909

Connecting to an NVP Controller..............................................................................................909

Advertising VXLAN Access Ports to Controller.......................................................................... 910

Displaying VXLAN Configurations.....................................................................................................911

54 Virtual Routing and Forwarding (VRF)....................................................... 913

VRF Overview.................................................................................................................................... 913

VRF Configuration Notes..................................................................................................................914

DHCP........................................................................................................................................... 917

VRF Configuration............................................................................................................................. 917

Load VRF CAM............................................................................................................................. 917

Creating a Non-Default VRF Instance........................................................................................ 917

Assigning an Interface to a VRF.................................................................................................. 918

View VRF Instance Information.................................................................................................. 918

Assigning an OSPF Process to a VRF Instance...........................................................................918

Configuring VRRP on a VRF Instance.........................................................................................918

Sample VRF Configuration................................................................................................................919

Route Leaking VRFs.......................................................................................................................... 927

55 Virtual Router Redundancy Protocol (VRRP)............................................928

VRRP Overview................................................................................................................................. 928

VRRP Benefits....................................................................................................................................929

VRRP Implementation...................................................................................................................... 929

VRRP Configuration..........................................................................................................................930

Configuration Task List...............................................................................................................930

Setting VRRP Initialization Delay................................................................................................940

Sample Configurations..................................................................................................................... 941

VRRP for an IPv4 Configuration..................................................................................................941

VRRP in a VRF Configuration......................................................................................................945

56 S-Series Debugging and Diagnostics.........................................................950

Offline Diagnostics........................................................................................................................... 950

Important Points to Remember................................................................................................. 950

Running Offline Diagnostics.......................................................................................................950

Configuring 104 10GbE Ports on the S6000 Platform....................................................................955

Configuring Fanout Mode.......................................................................................................... 955

Backward Compatibility With Enhanced Fanout Configuration...............................................956

Configuring Fanout on Disabled Ports.......................................................................................957

Trace Logs.........................................................................................................................................958

Auto Save on Crash or Rollover....................................................................................................... 958

Hardware Watchdog Timer..............................................................................................................959

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Dell S6000 Configuration manual

Specifications and Main Features

Frequently Asked Questions

User Manual