Dell Force10 Z9000 Administrator Guide

Dell Configuration Guide for the Z9000

System

9.6(0.0)

Notes, Cautions, and Warnings

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

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you

how to avoid the problem.

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

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2014 - 09

Rev. A00

Contents

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

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

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

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

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

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

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

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

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

Accessing the CLI Interface and Running Scripts Using SSH............................................................44

Z9000 ........................................................................................................................................... 44

Entering CLI commands Using an SSH Connection....................................................................45

Executing Local CLI Scripts Using an SSH Connection...............................................................45

Default Configuration......................................................................................................................... 46

Configuring a Host Name...................................................................................................................46

Accessing the System Remotely........................................................................................................ 46

Accessing the System Remotely...................................................................................................46

Configure the Management Port IP Address............................................................................... 46

Configure a Management Route.................................................................................................. 47

Configuring a Username and Password.......................................................................................47

Configuring the Enable Password...................................................................................................... 47

Configuration File Management.........................................................................................................48

Copy Files to and from the System.............................................................................................. 48

Save the Running-Configuration..................................................................................................49

Configure the Overload Bit for a Startup Scenario......................................................................50

Viewing Files..................................................................................................................................50

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

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

View Command History......................................................................................................................53

Upgrading Dell Networking OS.......................................................................................................... 53

Using HTTP for File Transfers............................................................................................................. 54

Using Hashes to Validate Software Images........................................................................................54

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

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

Creating a Custom Privilege Level................................................................................................56

Removing a Command from EXEC Mode................................................................................... 56

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

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

Allowing Access to the Following Modes.....................................................................................57

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

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

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

Audit and Security Logs................................................................................................................ 60

Configuring Logging Format ...................................................................................................... 62

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

Log Messages in the Internal Buffer...................................................................................................63

Configuration Task List for System Log Management.................................................................63

Disabling System Logging...................................................................................................................63

Sending System Messages to a Syslog Server................................................................................... 64

Configuring a UNIX System as a Syslog Server............................................................................64

Changing System Logging Settings................................................................................................... 64

Display the Logging Buffer and the Logging Configuration............................................................. 65

Configuring a UNIX Logging Facility Level.........................................................................................66

Synchronizing Log Messages..............................................................................................................67

Enabling Timestamp on Syslog Messages..........................................................................................67

File Transfer Services.......................................................................................................................... 68

Configuration Task List for File Transfer Services........................................................................68

Enabling the FTP Server................................................................................................................ 68

Configuring FTP Server Parameters............................................................................................. 69

Configuring FTP Client Parameters..............................................................................................69

Terminal Lines..................................................................................................................................... 70

Denying and Permitting Access to a Terminal Line.....................................................................70

Configuring Login Authentication for Terminal Lines..................................................................71

Setting Time Out of EXEC Privilege Mode..........................................................................................72

Using Telnet to get to Another Network Device................................................................................72

Lock CONFIGURATION Mode............................................................................................................73

Viewing the Configuration Lock Status........................................................................................ 73

Recovering from a Forgotten Password on the Z9000 System........................................................74

Recovering from a Forgotten Enable Password on the Z9000...................................................75

Recovering from a Failed Start on the Z9000 System.......................................................................76

Restoring the Factory Default Settings...............................................................................................77

Z9000MXL Switch..........................................................................................................................77

Important Points to Remember.................................................................................................... 77

Restoring Factory Default Environment Variables........................................................................77

5 802.1X...................................................................................................................80

The Port-Authentication Process....................................................................................................... 81

EAP over RADIUS...........................................................................................................................83

Configuring 802.1X............................................................................................................................. 83

Related Configuration Tasks.........................................................................................................83

Important Points to Remember......................................................................................................... 84

Enabling 802.1X...................................................................................................................................84

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

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

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

Re-Authenticating a Port....................................................................................................................88

Configuring Timeouts.........................................................................................................................89

Configuring Dynamic VLAN Assignment with Port Authentication..................................................90

Guest and Authentication-Fail VLANs................................................................................................ 91

Configuring a Guest VLAN............................................................................................................92

Configuring an Authentication-Fail VLAN....................................................................................92

6 Access Control Lists (ACLs).............................................................................. 94

IP Access Control Lists (ACLs)............................................................................................................ 95

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

Implementing ACLs on Dell Networking OS................................................................................97

IP Fragment Handling......................................................................................................................... 98

IP Fragments ACL Examples......................................................................................................... 98

Layer 4 ACL Rules Examples.........................................................................................................99

Configure a Standard IP ACL............................................................................................................100

Configuring a Standard IP ACL Filter.......................................................................................... 101

Configure an Extended IP ACL......................................................................................................... 102

Configuring Filters with a Sequence Number............................................................................102

Configuring Filters Without a Sequence Number......................................................................103

Configure Layer 2 and Layer 3 ACLs................................................................................................104

Assign an IP ACL to an Interface...................................................................................................... 105

Applying an IP ACL............................................................................................................................105

Counting ACL Hits.......................................................................................................................106

Configure Ingress ACLs.................................................................................................................... 106

Configure Egress ACLs......................................................................................................................107

Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 108

IP Prefix Lists..................................................................................................................................... 108

Implementation Information...................................................................................................... 109

Configuration Task List for Prefix Lists....................................................................................... 109

ACL Resequencing.............................................................................................................................113

Resequencing an ACL or Prefix List............................................................................................ 114

Route Maps........................................................................................................................................ 115

Implementation Information.......................................................................................................115

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

Configuration Task List for Route Maps......................................................................................116

Configuring Match Routes.......................................................................................................... 118

Configuring Set Conditions........................................................................................................ 120

Configure a Route Map for Route Redistribution.......................................................................121

Configure a Route Map for Route Tagging................................................................................ 121

Continue Clause..........................................................................................................................122

Logging of ACL Processes................................................................................................................ 122

Guidelines for Configuring ACL Logging......................................................................................... 123

Configuring ACL Logging................................................................................................................. 124

Flow-Based Monitoring Support for ACLs....................................................................................... 124

Behavior of Flow-Based Monitoring...........................................................................................125

Enabling Flow-Based Monitoring..................................................................................................... 126

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

Memory (CAM)......................................................................................................128

Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................... 128

Guidelines for Configuring ACL VLAN groups.................................................................................129

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters........................130

Configuring ACL VLAN Groups...................................................................................................130

Configuring FP Blocks for VLAN Parameters..............................................................................131

Viewing CAM Usage.......................................................................................................................... 132

Allocating FP Blocks for VLAN Processes.........................................................................................133

8 Bidirectional Forwarding Detection (BFD)...................................................135

How BFD Works................................................................................................................................ 135

BFD Packet Format......................................................................................................................136

BFD Sessions................................................................................................................................138

BFD Three-Way Handshake........................................................................................................138

Session State Changes................................................................................................................ 139

Important Points to Remember....................................................................................................... 140

Configure BFD...................................................................................................................................140

Configure BFD for Physical Ports................................................................................................141

Configure BFD for Static Routes.................................................................................................144

Configure BFD for OSPF............................................................................................................. 146

Configure BFD for OSPFv3......................................................................................................... 149

Configure BFD for IS-IS...............................................................................................................150

Configure BFD for BGP............................................................................................................... 153

Configure BFD for VRRP............................................................................................................. 160

Configuring Protocol Liveness....................................................................................................163

Troubleshooting BFD.................................................................................................................. 163

9 Border Gateway Protocol IPv4 (BGPv4).......................................................165

Autonomous Systems (AS)................................................................................................................165

Sessions and Peers............................................................................................................................ 167

Establish a Session.......................................................................................................................168

Route Reflectors................................................................................................................................168

BGP Attributes................................................................................................................................... 169

Best Path Selection Criteria.........................................................................................................170

Weight.......................................................................................................................................... 172

Local Preference..........................................................................................................................172

Multi-Exit Discriminators (MEDs)................................................................................................ 173

Origin........................................................................................................................................... 174

AS Path......................................................................................................................................... 175

Next Hop......................................................................................................................................175

Multiprotocol BGP.............................................................................................................................176

Implement BGP with Dell Networking OS....................................................................................... 176

Additional Path (Add-Path) Support............................................................................................176

Advertise IGP Cost as MED for Redistributed Routes................................................................ 176

Ignore Router-ID for Some Best-Path Calculations.................................................................. 177

Four-Byte AS Numbers................................................................................................................177

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

AS Number Migration.................................................................................................................. 179

BGP4 Management Information Base (MIB)...............................................................................181

Important Points to Remember.................................................................................................. 181

Configuration Information................................................................................................................182

BGP Configuration............................................................................................................................ 182

Enabling BGP...............................................................................................................................183

Configuring AS4 Number Representations................................................................................ 187

Configuring Peer Groups............................................................................................................189

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

Configuring Passive Peering....................................................................................................... 193

Maintaining Existing AS Numbers During an AS Migration........................................................194

Allowing an AS Number to Appear in its Own AS Path..............................................................195

Enabling Graceful Restart........................................................................................................... 196

Enabling Neighbor Graceful Restart........................................................................................... 197

Filtering on an AS-Path Attribute................................................................................................ 197

Regular Expressions as Filters..................................................................................................... 199

Redistributing Routes................................................................................................................. 200

Enabling Additional Paths........................................................................................................... 201

Configuring IP Community Lists.................................................................................................201

Configuring an IP Extended Community List............................................................................ 203

Filtering Routes with Community Lists......................................................................................204

Manipulating the COMMUNITY Attribute.................................................................................. 204

Changing MED Attributes...........................................................................................................206

Changing the LOCAL_PREFERENCE Attribute..........................................................................206

Changing the NEXT_HOP Attribute........................................................................................... 207

Changing the WEIGHT Attribute................................................................................................208

Enabling Multipath......................................................................................................................208

Filtering BGP Routes...................................................................................................................208

Filtering BGP Routes Using Route Maps.................................................................................... 210

Filtering BGP Routes Using AS-PATH Information.....................................................................211

Configuring BGP Route Reflectors............................................................................................. 211

Aggregating Routes.....................................................................................................................212

Configuring BGP Confederations...............................................................................................213

Enabling Route Flap Dampening................................................................................................ 213

Changing BGP Timers.................................................................................................................216

Enabling BGP Neighbor Soft-Reconfiguration.......................................................................... 216

Route Map Continue...................................................................................................................218

Enabling MBGP Configurations........................................................................................................ 218

BGP Regular Expression Optimization............................................................................................. 219

Debugging BGP.................................................................................................................................219

Storing Last and Bad PDUs.........................................................................................................220

Capturing PDUs........................................................................................................................... 221

PDU Counters............................................................................................................................. 222

Sample Configurations..................................................................................................................... 223

10 Content Addressable Memory (CAM).........................................................229

CAM Allocation................................................................................................................................. 229

Test CAM Usage................................................................................................................................ 231

View CAM Profiles............................................................................................................................. 231

View CAM-ACL Settings................................................................................................................... 232

View CAM Usage...............................................................................................................................234

CAM Optimization.............................................................................................................................235

Troubleshoot CAM Profiling.............................................................................................................235

CAM Profile Mismatches.............................................................................................................235

QoS CAM Region Limitation.......................................................................................................235

11 Control Plane Policing (CoPP)......................................................................237

Configure Control Plane Policing.................................................................................................... 238

Configuring CoPP for Protocols................................................................................................ 239

Configuring CoPP for CPU Queues........................................................................................... 241

CoPP for OSPFv3 Packets...........................................................................................................242

Configuring CoPP for OSPFv3....................................................................................................245

Show Commands....................................................................................................................... 246

12 Dynamic Host Configuration Protocol (DHCP)........................................248

DHCP Packet Format and Options.................................................................................................. 248

Assign an IP Address using DHCP....................................................................................................250

Implementation Information............................................................................................................ 251

Configure the System to be a DHCP Server.................................................................................... 252

Configuring the Server for Automatic Address Allocation........................................................ 252

Specifying a Default Gateway.....................................................................................................254

Configure a Method of Hostname Resolution.......................................................................... 254

Using DNS for Address Resolution.............................................................................................254

Using NetBIOS WINS for Address Resolution............................................................................ 254

Creating Manual Binding Entries................................................................................................ 255

Debugging the DHCP Server......................................................................................................255

Using DHCP Clear Commands...................................................................................................255

Configure the System to be a Relay Agent......................................................................................256

Configure the System to be a DHCP Client.................................................................................... 258

DHCP Client on a Management Interface................................................................................. 258

DHCP Client Operation with Other Features............................................................................ 259

Configure the System for User Port Stacking (Option 230)........................................................... 260

Configure Secure DHCP.................................................................................................................. 260

Option 82....................................................................................................................................260

DHCP Snooping.......................................................................................................................... 261

Drop DHCP Packets on Snooped VLANs Only..........................................................................263

Dynamic ARP Inspection............................................................................................................ 263

Configuring Dynamic ARP Inspection........................................................................................265

Source Address Validation................................................................................................................266

Enabling IP Source Address Validation...................................................................................... 266

DHCP MAC Source Address Validation......................................................................................267

Enabling IP+MAC Source Address Validation............................................................................ 267

Viewing the Number of SAV Dropped Packets..........................................................................268

Clearing the Number of SAV Dropped Packets.........................................................................268

13 Equal Cost Multi-Path (ECMP)..................................................................... 269

ECMP for Flow-Based Affinity..........................................................................................................269

Configuring the Hash Algorithm................................................................................................ 269

Enabling Deterministic ECMP Next Hop....................................................................................269

Configuring the Hash Algorithm Seed....................................................................................... 270

Link Bundle Monitoring.................................................................................................................... 270

Managing ECMP Group Paths.....................................................................................................271

Creating an ECMP Group Bundle...............................................................................................272

Modifying the ECMP Group Threshold...................................................................................... 272

14 Enabling FIPS Cryptography........................................................................ 274

Configuration Tasks..........................................................................................................................274

Preparing the System........................................................................................................................274

Enabling FIPS Mode.......................................................................................................................... 275

Generating Host-Keys.......................................................................................................................275

Monitoring FIPS Mode Status........................................................................................................... 276

Disabling FIPS Mode......................................................................................................................... 276

15 Force10 Resilient Ring Protocol (FRRP)..................................................... 278

Protocol Overview............................................................................................................................ 278

Ring Status...................................................................................................................................279

Multiple FRRP Rings....................................................................................................................280

Important FRRP Points............................................................................................................... 280

Important FRRP Concepts..........................................................................................................280

Implementing FRRP.......................................................................................................................... 282

FRRP Configuration.......................................................................................................................... 282

Creating the FRRP Group........................................................................................................... 282

Configuring the Control VLAN................................................................................................... 283

Configuring and Adding the Member VLANs............................................................................ 284

Setting the FRRP Timers............................................................................................................. 285

Clearing the FRRP Counters.......................................................................................................286

Viewing the FRRP Configuration................................................................................................286

Viewing the FRRP Information................................................................................................... 286

Troubleshooting FRRP......................................................................................................................287

Configuration Checks.................................................................................................................287

Sample Configuration and Topology...............................................................................................287

16 GARP VLAN Registration Protocol (GVRP)................................................289

Important Points to Remember....................................................................................................... 289

Configure GVRP................................................................................................................................290

Related Configuration Tasks...................................................................................................... 290

Enabling GVRP Globally....................................................................................................................291

Enabling GVRP on a Layer 2 Interface..............................................................................................291

Configure GVRP Registration........................................................................................................... 291

Configure a GARP Timer.................................................................................................................. 292

17 Internet Group Management Protocol (IGMP).........................................294

IGMP Implementation Information..................................................................................................294

IGMP Protocol Overview..................................................................................................................294

IGMP Version 2............................................................................................................................294

IGMP Version 3............................................................................................................................296

Configure IGMP................................................................................................................................ 299

Related Configuration Tasks...................................................................................................... 299

Viewing IGMP Enabled Interfaces....................................................................................................300

Selecting an IGMP Version...............................................................................................................300

Viewing IGMP Groups.......................................................................................................................301

Adjusting Timers................................................................................................................................301

Adjusting Query and Response Timers...................................................................................... 301

Adjusting the IGMP Querier Timeout Value...............................................................................302

Configuring a Static IGMP Group.................................................................................................... 302

Enabling IGMP Immediate-Leave.................................................................................................... 303

IGMP Snooping.................................................................................................................................303

IGMP Snooping Implementation Information...........................................................................303

Configuring IGMP Snooping...................................................................................................... 303

Removing a Group-Port Association.........................................................................................304

Disabling Multicast Flooding...................................................................................................... 304

Specifying a Port as Connected to a Multicast Router..............................................................305

Configuring the Switch as Querier.............................................................................................305

Fast Convergence after MSTP Topology Changes......................................................................... 306

Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................. 306

Protocol Separation.................................................................................................................... 307

Enabling and Disabling Management Egress Interface Selection............................................ 308

Handling of Management Route Configuration........................................................................309

Handling of Switch-Initiated Traffic...........................................................................................309

Handling of Switch-Destined Traffic..........................................................................................310

Handling of Transit Traffic (Traffic Separation)...........................................................................311

Mapping of Management Applications and Traffic Type........................................................... 311

Behavior of Various Applications for Switch-Initiated Traffic ...................................................312

Behavior of Various Applications for Switch-Destined Traffic ................................................. 313

Interworking of EIS With Various Applications...........................................................................314

Designating a Multicast Router Interface......................................................................................... 315

18 Interfaces......................................................................................................... 316

Basic Interface Configuration...........................................................................................................316

Advanced Interface Configuration................................................................................................... 316

Interface Types.................................................................................................................................. 317

View Basic Interface Information......................................................................................................317

Enabling a Physical Interface............................................................................................................ 319

Physical Interfaces.............................................................................................................................319

Configuration Task List for Physical Interfaces..........................................................................320

Overview of Layer Modes...........................................................................................................320

Configuring Layer 2 (Data Link) Mode....................................................................................... 320

Configuring Layer 2 (Interface) Mode.........................................................................................321

Configuring Layer 3 (Network) Mode......................................................................................... 321

Configuring Layer 3 (Interface) Mode........................................................................................ 322

Egress Interface Selection (EIS)........................................................................................................ 322

Important Points to Remember..................................................................................................323

Configuring EIS........................................................................................................................... 323

Management Interfaces....................................................................................................................323

Configuring Management Interfaces......................................................................................... 323

Configuring Management Interfaces on the S-Series...............................................................324

VLAN Interfaces.................................................................................................................................325

Loopback Interfaces......................................................................................................................... 326

Null Interfaces...................................................................................................................................326

Port Channel Interfaces....................................................................................................................326

Port Channel Definition and Standards......................................................................................327

Port Channel Benefits................................................................................................................. 327

Port Channel Implementation.................................................................................................... 327

10/100/1000 Mbps Interfaces in Port Channels........................................................................328

Configuration Tasks for Port Channel Interfaces...................................................................... 328

Creating a Port Channel............................................................................................................. 329

Adding a Physical Interface to a Port Channel.......................................................................... 329

Reassigning an Interface to a New Port Channel...................................................................... 331

Configuring the Minimum Oper Up Links in a Port Channel.................................................... 332

..................................................................................................................................................... 332

Assigning an IP Address to a Port Channel................................................................................ 333

Deleting or Disabling a Port Channel.........................................................................................333

Load Balancing Through Port Channels.................................................................................... 333

Load-Balancing Method.............................................................................................................334

Changing the Hash Algorithm....................................................................................................334

Bulk Configuration............................................................................................................................336

Interface Range...........................................................................................................................336

Bulk Configuration Examples..................................................................................................... 336

Defining Interface Range Macros.....................................................................................................338

Define the Interface Range.........................................................................................................338

Choosing an Interface-Range Macro........................................................................................ 338

Monitoring and Maintaining Interfaces............................................................................................339

Maintenance Using TDR.............................................................................................................340

Splitting QSFP Ports to SFP+ Ports.................................................................................................. 340

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................ 341

Important Points to Remember................................................................................................. 342

Support for LM4 Optics.............................................................................................................. 342

Example Scenarios......................................................................................................................342

Link Dampening................................................................................................................................346

Important Points to Remember..................................................................................................347

Enabling Link Dampening...........................................................................................................347

Link Bundle Monitoring.................................................................................................................... 348

Using Ethernet Pause Frames for Flow Control.............................................................................. 349

Enabling Pause Frames...............................................................................................................350

Configure the MTU Size on an Interface......................................................................................... 350

Port-Pipes..........................................................................................................................................351

Auto-Negotiation on Ethernet Interfaces........................................................................................ 351

Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................352

Set Auto-Negotiation Options....................................................................................................353

View Advanced Interface Information............................................................................................. 354

Configuring the Interface Sampling Size................................................................................... 355

Dynamic Counters............................................................................................................................356

Clearing Interface Counters....................................................................................................... 356

Enhanced Validation of Interface Ranges........................................................................................ 357

19 Internet Protocol Security (IPSec)...............................................................358

Configuring IPSec ............................................................................................................................ 359

20 IPv4 Routing................................................................................................... 360

IP Addresses......................................................................................................................................360

Implementation Information......................................................................................................360

Configuration Tasks for IP Addresses.............................................................................................. 360

Assigning IP Addresses to an Interface.............................................................................................361

Configuring Static Routes.................................................................................................................362

Configure Static Routes for the Management Interface.................................................................363

IPv4 Path MTU Discovery Overview.................................................................................................364

Using the Configured Source IP Address in ICMP Messages..........................................................365

Configuring the ICMP Source Interface.....................................................................................365

Configuring the Duration to Establish a TCP Connection..............................................................365

Enabling Directed Broadcast............................................................................................................366

Resolution of Host Names............................................................................................................... 366

Enabling Dynamic Resolution of Host Names................................................................................ 366

Specifying the Local System Domain and a List of Domains..........................................................367

Configuring DNS with Traceroute....................................................................................................367

ARP.................................................................................................................................................... 368

Configuration Tasks for ARP............................................................................................................ 369

Configuring Static ARP Entries......................................................................................................... 369

Enabling Proxy ARP...........................................................................................................................369

Clearing ARP Cache..........................................................................................................................370

ARP Learning via Gratuitous ARP..................................................................................................... 370

Enabling ARP Learning via Gratuitous ARP.......................................................................................371

ARP Learning via ARP Request..........................................................................................................371

Configuring ARP Retries....................................................................................................................372

ICMP.................................................................................................................................................. 373

Configuration Tasks for ICMP...........................................................................................................373

Enabling ICMP Unreachable Messages............................................................................................373

UDP Helper........................................................................................................................................373

Configure UDP Helper................................................................................................................ 373

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

Enabling UDP Helper........................................................................................................................ 374

Configuring a Broadcast Address.....................................................................................................374

Configurations Using UDP Helper....................................................................................................375

UDP Helper with Broadcast-All Addresses...................................................................................... 375

UDP Helper with Subnet Broadcast Addresses................................................................................376

UDP Helper with Configured Broadcast Addresses.........................................................................377

UDP Helper with No Configured Broadcast Addresses...................................................................377

Troubleshooting UDP Helper........................................................................................................... 377

21 IPv6 Routing.................................................................................................... 379

Protocol Overview............................................................................................................................ 379

Extended Address Space.............................................................................................................379

Stateless Autoconfiguration........................................................................................................379

IPv6 Headers............................................................................................................................... 380

IPv6 Header Fields.......................................................................................................................381

Extension Header Fields..............................................................................................................382

Addressing...................................................................................................................................383

Implementing IPv6 with Dell Networking OS..................................................................................385

ICMPv6.............................................................................................................................................. 387

Path MTU Discovery..........................................................................................................................387

IPv6 Neighbor Discovery..................................................................................................................388

IPv6 Neighbor Discovery of MTU Packets.................................................................................389

Configuration Task List for IPv6 RDNSS.......................................................................................... 389

Configuring the IPv6 Recursive DNS Server.............................................................................. 389

Debugging IPv6 RDNSS Information Sent to the Host ............................................................ 390

Displaying IPv6 RDNSS Information........................................................................................... 391

Secure Shell (SSH) Over an IPv6 Transport......................................................................................392

Configuration Tasks for IPv6............................................................................................................ 392

Adjusting Your CAM-Profile........................................................................................................392

Assigning an IPv6 Address to an Interface.................................................................................393

Assigning a Static IPv6 Route..................................................................................................... 393

Configuring Telnet with IPv6......................................................................................................394

SNMP over IPv6...........................................................................................................................394

Showing IPv6 Information.......................................................................................................... 395

Showing an IPv6 Interface..........................................................................................................395

Showing IPv6 Routes..................................................................................................................396

Showing the Running-Configuration for an Interface.............................................................. 397

Clearing IPv6 Routes...................................................................................................................398

22 Intermediate System to Intermediate System..........................................399

IS-IS Protocol Overview................................................................................................................... 399

IS-IS Addressing................................................................................................................................399

Multi-Topology IS-IS........................................................................................................................400

Transition Mode.......................................................................................................................... 401

Interface Support........................................................................................................................ 401

Adjacencies..................................................................................................................................401

Graceful Restart................................................................................................................................ 401

Timers..........................................................................................................................................402

Implementation Information............................................................................................................402

Configuration Information............................................................................................................... 403

Configuration Tasks for IS-IS..................................................................................................... 403

Configuring the Distance of a Route..........................................................................................412

Changing the IS-Type................................................................................................................. 412

Redistributing IPv4 Routes..........................................................................................................415

Redistributing IPv6 Routes..........................................................................................................416

Configuring Authentication Passwords......................................................................................417

Setting the Overload Bit.............................................................................................................. 417

Debugging IS-IS.......................................................................................................................... 418

IS-IS Metric Styles..............................................................................................................................419

Configure Metric Values................................................................................................................... 419

Maximum Values in the Routing Table...................................................................................... 420

Change the IS-IS Metric Style in One Level Only......................................................................420

Leaks from One Level to Another.............................................................................................. 422

Sample Configurations..................................................................................................................... 422

23 Link Aggregation Control Protocol (LACP)...............................................425

Introduction to Dynamic LAGs and LACP....................................................................................... 425

Important Points to Remember................................................................................................. 425

LACP Modes................................................................................................................................426

Configuring LACP Commands...................................................................................................426

LACP Configuration Tasks................................................................................................................ 427

Creating a LAG............................................................................................................................ 427

Configuring the LAG Interfaces as Dynamic............................................................................. 428

Setting the LACP Long Timeout.................................................................................................428

Monitoring and Debugging LACP.............................................................................................. 429

Shared LAG State Tracking...............................................................................................................429

Configuring Shared LAG State Tracking.................................................................................... 430

Important Points about Shared LAG State Tracking.................................................................. 431

LACP Basic Configuration Example................................................................................................. 432

Configure a LAG on ALPHA........................................................................................................ 432

Setting Up a Threshold for Utilization of High-Gigabit Port Channels.......................................... 439

Guidelines for Monitoring High-Gigabit Port Channels............................................................441

Enabling the Verification of Member Links Utilization in a High-Gigabit Port Channel................442

Viewing Buffer Utilization and Queue Statistics on High-Gigabit Ethernet Backplane Ports....... 442

24 Layer 2............................................................................................................. 444

Manage the MAC Address Table......................................................................................................444

Clearing the MAC Address Table............................................................................................... 444

Setting the Aging Time for Dynamic Entries..............................................................................444

Configuring a Static MAC Address............................................................................................. 445

Displaying the MAC Address Table............................................................................................ 445

MAC Learning Limit.......................................................................................................................... 445

Setting the MAC Learning Limit................................................................................................. 446

mac learning-limit Dynamic.......................................................................................................446

mac learning-limit mac-address-sticky.....................................................................................447

mac learning-limit station-move............................................................................................... 447

mac learning-limit no-station-move.........................................................................................447

Learning Limit Violation Actions................................................................................................ 448

Setting Station Move Violation Actions......................................................................................448

Recovering from Learning Limit and Station Move Violations................................................. 449

NIC Teaming.....................................................................................................................................449

Configure Redundant Pairs...............................................................................................................451

Important Points about Configuring Redundant Pairs..............................................................453

Far-End Failure Detection................................................................................................................ 454

FEFD State Changes....................................................................................................................455

Configuring FEFD........................................................................................................................456

Enabling FEFD on an Interface................................................................................................... 457

Debugging FEFD......................................................................................................................... 458

25 Link Layer Discovery Protocol (LLDP)........................................................460

802.1AB (LLDP) Overview.................................................................................................................460

Protocol Data Units.................................................................................................................... 460

Optional TLVs....................................................................................................................................461

Management TLVs.......................................................................................................................461

TIA-1057 (LLDP-MED) Overview......................................................................................................463

TIA Organizationally Specific TLVs.............................................................................................464

Configure LLDP................................................................................................................................ 468

Related Configuration Tasks...................................................................................................... 468

Important Points to Remember................................................................................................. 469

LLDP Compatibility..................................................................................................................... 469

CONFIGURATION versus INTERFACE Configurations....................................................................469

Enabling LLDP...................................................................................................................................470

Disabling and Undoing LLDP......................................................................................................470

Enabling LLDP on Management Ports............................................................................................. 470

Disabling and Undoing LLDP on Management Ports................................................................470

Advertising TLVs................................................................................................................................ 471

Viewing the LLDP Configuration......................................................................................................472

Viewing Information Advertised by Adjacent LLDP Agents.............................................................473

Configuring LLDPDU Intervals......................................................................................................... 474

Configuring Transmit and Receive Mode........................................................................................ 474

Configuring a Time to Live............................................................................................................... 475

Debugging LLDP...............................................................................................................................476

Relevant Management Objects........................................................................................................ 477

26 Microsoft Network Load Balancing............................................................483

NLB Unicast Mode Scenario.............................................................................................................483

NLB Multicast Mode Scenario..........................................................................................................484

Limitations With Enabling NLB on Switches....................................................................................484

Benefits and Working of Microsoft Clustering................................................................................ 484

Enable and Disable VLAN Flooding .................................................................................................485

Configuring a Switch for NLB ..........................................................................................................485

.....................................................................................................................................................485

27 Multicast Source Discovery Protocol (MSDP)...........................................486

Protocol Overview............................................................................................................................486

Anycast RP........................................................................................................................................ 488

Implementation Information............................................................................................................488

Configure Multicast Source Discovery Protocol.............................................................................488

Related Configuration Tasks...................................................................................................... 488

Enable MSDP.....................................................................................................................................492

Manage the Source-Active Cache...................................................................................................493

Viewing the Source-Active Cache............................................................................................. 493

Limiting the Source-Active Cache.............................................................................................494

Clearing the Source-Active Cache............................................................................................ 494

Enabling the Rejected Source-Active Cache............................................................................ 494

Accept Source-Active Messages that Fail the RFP Check.............................................................. 494

Specifying Source-Active Messages................................................................................................ 498

Limiting the Source-Active Messages from a Peer......................................................................... 499

Preventing MSDP from Caching a Local Source.............................................................................499

Preventing MSDP from Caching a Remote Source........................................................................ 500

Preventing MSDP from Advertising a Local Source.........................................................................501

Logging Changes in Peership States................................................................................................502

Terminating a Peership.....................................................................................................................502

Clearing Peer Statistics..................................................................................................................... 502

Debugging MSDP..............................................................................................................................503

MSDP with Anycast RP..................................................................................................................... 503

Configuring Anycast RP....................................................................................................................505

Reducing Source-Active Message Flooding..............................................................................505

Specifying the RP Address Used in SA Messages.......................................................................505

MSDP Sample Configurations..........................................................................................................508

28 Multiple Spanning Tree Protocol (MSTP)...................................................511

Protocol Overview.............................................................................................................................511

Spanning Tree Variations.................................................................................................................. 512

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

Configure Multiple Spanning Tree Protocol.................................................................................... 512

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

Enable Multiple Spanning Tree Globally...........................................................................................513

Adding and Removing Interfaces......................................................................................................513

Creating Multiple Spanning Tree Instances......................................................................................513

Influencing MSTP Root Selection..................................................................................................... 515

Interoperate with Non-Dell Networking OS Bridges.......................................................................515

Changing the Region Name or Revision..........................................................................................516

Modifying Global Parameters........................................................................................................... 516

Modifying the Interface Parameters................................................................................................. 517

Configuring an EdgePort.................................................................................................................. 518

Flush MAC Addresses after a Topology Change..............................................................................519

MSTP Sample Configurations........................................................................................................... 519

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

ConfigurationSFTOS Example Running-Configuration............................................................ 520

Debugging and Verifying MSTP Configurations.............................................................................. 523

29 Multicast Features..........................................................................................526

Enabling IP Multicast.........................................................................................................................526

Multicast with ECMP.........................................................................................................................526

Implementation Information............................................................................................................ 527

First Packet Forwarding for Lossless Multicast................................................................................ 528

Multicast Policies.............................................................................................................................. 528

IPv4 Multicast Policies................................................................................................................ 528

30 Open Shortest Path First (OSPFv2 and OSPFv3)...................................... 536

Protocol Overview............................................................................................................................536

Autonomous System (AS) Areas................................................................................................. 536

Area Types................................................................................................................................... 537

Networks and Neighbors............................................................................................................538

Router Types............................................................................................................................... 538

Designated and Backup Designated Routers............................................................................ 540

Link-State Advertisements (LSAs)...............................................................................................540

Router Priority and Cost............................................................................................................. 542

OSPF with Dell Networking OS........................................................................................................542

Graceful Restart.......................................................................................................................... 543

Fast Convergence (OSPFv2, IPv4 Only)..................................................................................... 544

Multi-Process OSPFv2 (IPv4 only)..............................................................................................544

RFC-2328 Compliant OSPF Flooding........................................................................................ 545

OSPF ACK Packing......................................................................................................................546

Setting OSPF Adjacency with Cisco Routers............................................................................. 546

Configuration Information................................................................................................................547

Configuration Task List for OSPFv2 (OSPF for IPv4)..................................................................547

Sample Configurations for OSPFv2..................................................................................................562

Basic OSPFv2 Router Topology..................................................................................................562

OSPF Area 0 — Gl 1/1 and 1/2.................................................................................................... 562

OSPF Area 0 — Gl 3/1 and 3/2....................................................................................................563

OSPF Area 0 — Gl 2/1 and 2/2....................................................................................................563

Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................563

Enabling IPv6 Unicast Routing................................................................................................... 564

Assigning IPv6 Addresses on an Interface................................................................................. 564

Assigning Area ID on an Interface..............................................................................................564

Assigning OSPFv3 Process ID and Router ID Globally.............................................................. 565

Configuring Stub Areas...............................................................................................................565

Configuring Passive-Interface....................................................................................................566

Redistributing Routes..................................................................................................................566

Configuring a Default Route.......................................................................................................567

Enabling OSPFv3 Graceful Restart..............................................................................................567

OSPFv3 Authentication Using IPsec...........................................................................................569

Troubleshooting OSPFv3............................................................................................................ 577

31 Policy-based Routing (PBR)..........................................................................579

Overview............................................................................................................................................579

Implementing Policy-based Routing with Dell Networking OS......................................................581

Configuration Task List for Policy-based Routing...........................................................................581

PBR Exceptions (Permit)............................................................................................................. 584

Sample Configuration.......................................................................................................................586

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

Redirect-List GOLD.....................................................................................................................587

32 PIM Sparse-Mode (PIM-SM)......................................................................... 589

Implementation Information............................................................................................................589

Protocol Overview............................................................................................................................589

Requesting Multicast Traffic.......................................................................................................589

Refuse Multicast Traffic.............................................................................................................. 590

Send Multicast Traffic................................................................................................................. 590

Configuring PIM-SM..........................................................................................................................591

Related Configuration Tasks.......................................................................................................591

Enable PIM-SM.................................................................................................................................. 591

Configuring S,G Expiry Timers......................................................................................................... 592

Configuring a Static Rendezvous Point........................................................................................... 593

Overriding Bootstrap Router Updates....................................................................................... 594

Configuring a Designated Router.................................................................................................... 594

Creating Multicast Boundaries and Domains.................................................................................. 595

Enabling PIM-SM Graceful Restart...................................................................................................595

33 PIM Source-Specific Mode (PIM-SSM)....................................................... 596

Implementation Information............................................................................................................596

Important Points to Remember................................................................................................. 596

Configure PIM-SMM......................................................................................................................... 597

Related Configuration Tasks.......................................................................................................597

Enabling PIM-SSM.............................................................................................................................597

Use PIM-SSM with IGMP Version 2 Hosts........................................................................................597

Configuring PIM-SSM with IGMPv2........................................................................................... 598

34 Port Monitoring............................................................................................. 600

Important Points to Remember.......................................................................................................600

Port Monitoring.................................................................................................................................601

Configuring Port Monitoring............................................................................................................602

Enabling Flow-Based Monitoring.................................................................................................... 604

Remote Port Mirroring..................................................................................................................... 605

Remote Port Mirroring Example................................................................................................ 605

Configuring Remote Port Mirroring...........................................................................................606

Displaying Remote-Port Mirroring Configurations...................................................................608

Configuring the Sample Remote Port Mirroring....................................................................... 608

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Dell Force10 Z9000 Administrator Guide

Dell Force10 Z9000 Administrator Guide

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