Dell Force10 MXL Blade User guide

Dell Networking Configuration Guide for the

MXL 10/40GbE Switch I/O Module

9.5(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 - 06

Rev. A00

Contents

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

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

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

Information Symbols...........................................................................................................................32

Related Documents............................................................................................................................ 33

2 Configuration Fundamentals.............................................................................. 34

Accessing the Command Line............................................................................................................34

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

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

The do Command...............................................................................................................................39

Undoing Commands...........................................................................................................................39

Obtaining Help....................................................................................................................................40

Entering and Editing Commands....................................................................................................... 40

Command History............................................................................................................................... 41

Filtering show Command Outputs.....................................................................................................42

Multiple Users in Configuration Mode............................................................................................... 43

3 Getting Started........................................................................................................44

Console Access...................................................................................................................................45

Serial Console................................................................................................................................45

External Serial Port with a USB Connector...................................................................................47

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

Entering CLI commands Using an SSH Connection....................................................................47

Executing Local CLI Scripts Using an SSH Connection...............................................................47

Boot Process....................................................................................................................................... 48

Default Configuration......................................................................................................................... 50

Configuring a Host Name...................................................................................................................50

Accessing the System Remotely.........................................................................................................51

Accessing the MXL Switch Remotely............................................................................................51

Configure the Management Port IP Address................................................................................51

Configure a Management Route...................................................................................................51

Configuring a Username and Password.......................................................................................52

Configuring the Enable Password...................................................................................................... 52

Configuration File Management.........................................................................................................53

Copy Files to and from the System.............................................................................................. 53

Save the Running-Configuration..................................................................................................54

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

Managing the File System...................................................................................................................56

View the Command History................................................................................................................57

Using HTTP for File Transfers............................................................................................................. 58

Upgrading and Downgrading the Dell Networking OS.....................................................................58

Using Hashes to Validate Software Images........................................................................................58

4 Management............................................................................................................60

Configuring Privilege Levels............................................................................................................... 60

Creating a Custom Privilege Level............................................................................................... 60

Customizing a Privilege Level....................................................................................................... 61

Applying a Privilege Level to a Username.................................................................................... 62

Applying a Privilege Level to a Terminal Line...............................................................................63

Configuring Logging...........................................................................................................................63

Audit and Security Logs.................................................................................................................63

Configuring Logging Format ...................................................................................................... 65

Setting Up a Secure Connection to a Syslog Server....................................................................66

Display the Logging Buffer and the Logging Configuration..............................................................67

Log Messages in the Internal Buffer...................................................................................................68

Configuration Task List for System Log Management................................................................ 68

Disabling System Logging.................................................................................................................. 68

Sending System Messages to a Syslog Server................................................................................... 68

Configuring a UNIX System as a Syslog Server............................................................................68

Changing System Logging Settings................................................................................................... 69

Display the Logging Buffer and the Logging Configuration............................................................. 70

Configuring a UNIX Logging Facility Level.........................................................................................70

Synchronizing Log Messages..............................................................................................................72

Enabling Timestamp on Syslog Messages..........................................................................................72

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

Configuration Task List for File Transfer Services........................................................................ 73

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

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

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

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

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

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

Setting Time Out of EXEC Privilege Mode......................................................................................... 76

Using Telnet to get to Another Network Device................................................................................77

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

Viewing the Configuration Lock Status........................................................................................78

Recovering from a Forgotten Password............................................................................................ 78

Recovering from a Forgotten Enable Password................................................................................ 79

Recovering from a Failed Start........................................................................................................... 80

5 802.1X........................................................................................................................ 81

The Port-Authentication Process.......................................................................................................82

EAP over RADIUS...........................................................................................................................84

Configuring 802.1X............................................................................................................................. 84

Related Configuration Tasks.........................................................................................................84

Important Points to Remember..........................................................................................................85

Enabling 802.1X...................................................................................................................................86

Configuring Request Identity Re-Transmissions......................................................................... 88

Configuring a Quiet Period after a Failed Authentication........................................................... 88

Forcibly Authorizing or Unauthorizing a Port....................................................................................89

Re-Authenticating a Port....................................................................................................................90

Configuring Timeouts......................................................................................................................... 91

Configuring Dynamic VLAN Assignment with Port Authentication..................................................92

Guest and Authentication-Fail VLANs.......................................................................................... 93

Configuring a Guest VLAN............................................................................................................94

Configuring an Authentication-Fail VLAN....................................................................................94

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

Memory (CAM)............................................................................................................96

Optimizing CAM Utilization During the Attachment of ACLs to VLANs...........................................96

Guidelines for Configuring ACL VLAN groups................................................................................... 97

Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters..........................98

Configuring ACL VLAN Groups.................................................................................................... 98

Configuring FP Blocks for VLAN Parameters............................................................................... 99

Viewing CAM Usage..........................................................................................................................100

Allocating FP Blocks for VLAN Processes.........................................................................................101

7 Access Control Lists (ACLs)................................................................................ 103

IP Access Control Lists (ACLs).......................................................................................................... 103

Implementing ACL on the Dell Networking OS.............................................................................. 104

ACLs and VLANs................................................................................................................................104

ACL Optimization..............................................................................................................................104

Determine the Order in which ACLs are Used to Classify Traffic...................................................104

Example of the order Keyword to Determine ACL Sequence...................................................105

IP Fragment Handling....................................................................................................................... 105

IP Fragments ACL Examples............................................................................................................. 105

Layer 4 ACL Rules Examples.............................................................................................................106

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

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

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

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

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

Established Flag................................................................................................................................. 110

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

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

Applying an IP ACL.............................................................................................................................112

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

Configure Ingress ACLs..................................................................................................................... 113

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

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

IP Prefix Lists...................................................................................................................................... 115

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

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

Creating a Prefix List..........................................................................................................................116

Creating a Prefix List Without a Sequence Number.........................................................................117

Viewing Prefix Lists............................................................................................................................ 117

Applying a Prefix List for Route Redistribution.................................................................................118

Applying a Filter to a Prefix List (OSPF)............................................................................................. 119

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

Resequencing an ACL or Prefix List..................................................................................................120

Route Maps........................................................................................................................................ 121

Implementation Information.......................................................................................................122

Important Points to Remember........................................................................................................122

Configuration Task List for Route Maps........................................................................................... 122

Creating a Route Map....................................................................................................................... 122

Configure Route Map Filters.............................................................................................................124

Configuring Match Routes................................................................................................................125

Configuring Set Conditions.............................................................................................................. 126

Configure a Route Map for Route Redistribution............................................................................ 126

Configure a Route Map for Route Tagging...................................................................................... 127

Continue Clause................................................................................................................................127

Logging of ACL Processes................................................................................................................ 128

Guidelines for Configuring ACL Logging......................................................................................... 129

Configuring ACL Logging................................................................................................................. 130

Flow-Based Monitoring Support for ACLs.......................................................................................130

Behavior of Flow-Based Monitoring........................................................................................... 131

Enabling Flow-Based Monitoring..................................................................................................... 132

8 Bidirectional Forwarding Detection (BFD).....................................................134

How BFD Works................................................................................................................................ 134

BFD Packet Format......................................................................................................................135

BFD Sessions................................................................................................................................137

BFD Three-Way Handshake........................................................................................................ 137

Session State Changes................................................................................................................ 138

Important Points to Remember........................................................................................................139

Configure BFD...................................................................................................................................139

Configure BFD for Physical Ports............................................................................................... 140

Enabling BFD Globally.................................................................................................................140

Establishing a Session on Physical Ports.....................................................................................141

Changing Physical Port Session Parameters..............................................................................142

Disabling and Re-Enabling BFD..................................................................................................143

Configure BFD for Static Routes.......................................................................................................143

Related Configuration Tasks.......................................................................................................144

Establishing Sessions for Static Routes...................................................................................... 144

Changing Static Route Session Parameters............................................................................... 145

Disabling BFD for Static Routes.................................................................................................. 145

Configure BFD for OSPF................................................................................................................... 145

Related Configuration Tasks.......................................................................................................145

Establishing Sessions with OSPF Neighbors.............................................................................. 146

Changing OSPF Session Parameters.......................................................................................... 147

Disabling BFD for OSPF...............................................................................................................147

Configure BFD for OSPFv3............................................................................................................... 148

Related Configuration Tasks.......................................................................................................148

Establishing Sessions with OSPFv3 Neighbors...........................................................................148

Changing OSPFv3 Session Parameters...................................................................................... 148

Disabling BFD for OSPFv3...........................................................................................................149

Configure BFD for BGP.....................................................................................................................149

Prerequisites................................................................................................................................ 149

Establishing Sessions with BGP Neighbors................................................................................ 150

Disabling BFD for BGP.................................................................................................................152

Use BFD in a BGP Peer Group.................................................................................................... 152

Displaying BFD for BGP Information.......................................................................................... 152

Configure BFD for VRRP................................................................................................................... 156

Related Configuration Tasks....................................................................................................... 157

Establishing Sessions with All VRRP Neighbors..........................................................................157

Establishing VRRP Sessions on VRRP Neighbors....................................................................... 158

Changing VRRP Session Parameters.......................................................................................... 159

Disabling BFD for VRRP...............................................................................................................159

Configure BFD for VLANs................................................................................................................. 159

Related Configuration Task........................................................................................................ 160

Establish Sessions with VLAN Neighbors................................................................................... 160

Changing VLAN Session Parameters...........................................................................................161

Disabling BFD for VLANs............................................................................................................. 161

Configure BFD for Port-Channels.................................................................................................... 161

Related Configuration Tasks.......................................................................................................162

Establish Sessions on Port-Channels......................................................................................... 162

Changing Physical Port Session Parameters..............................................................................163

Disabling BFD for Port-Channels................................................................................................163

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................................................................................................................................169

Communities...............................................................................................................................169

BGP Attributes................................................................................................................................... 170

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.............................................................................................................................175

Implement BGP with the 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

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

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

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

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

PDU Counters............................................................................................................................. 220

Sample Configurations......................................................................................................................221

10 Content Addressable Memory (CAM)........................................................... 230

CAM Allocation................................................................................................................................. 230

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

View CAM-ACL Settings....................................................................................................................231

CAM Optimization............................................................................................................................ 232

11 Control Plane Policing (CoPP).........................................................................233

Configure Control Plane Policing.................................................................................................... 234

Configuring CoPP for Protocols.................................................................................................235

Configuring CoPP for CPU Queues........................................................................................... 237

Show Commands....................................................................................................................... 238

12 Data Center Bridging (DCB)............................................................................ 240

Ethernet Enhancements in Data Center Bridging...........................................................................240

Priority-Based Flow Control....................................................................................................... 241

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

Data Center Bridging Exchange Protocol (DCBx)..................................................................... 243

Data Center Bridging in a Traffic Flow.......................................................................................244

Enabling Data Center Bridging.........................................................................................................244

QoS dot1p Traffic Classification and Queue Assignment...............................................................245

Configuring Priority-Based Flow Control........................................................................................246

Configuring Lossless Queues.....................................................................................................248

Configuring the PFC Buffer in a Switch Stack........................................................................... 249

Configure Enhanced Transmission Selection................................................................................. 250

ETS Prerequisites and Restrictions............................................................................................. 250

Creating a QoS ETS Output Policy............................................................................................. 251

Creating an ETS Priority Group...................................................................................................253

Applying an ETS Output Policy for a Priority Group to an Interface.........................................254

ETS Operation with DCBx...........................................................................................................255

Configuring Bandwidth Allocation for DCBx CIN..................................................................... 256

Applying DCB Policies in a Switch Stack..........................................................................................257

Applying DCB Policies with an ETS Configuration.......................................................................... 257

Configure a DCBx Operation............................................................................................................257

DCBx Operation..........................................................................................................................258

DCBx Port Roles..........................................................................................................................258

DCB Configuration Exchange....................................................................................................260

Configuration Source Election...................................................................................................260

Propagation of DCB Information................................................................................................261

Auto-Detection and Manual Configuration of the DCBx Version.............................................261

DCBx Example.............................................................................................................................262

DCBx Prerequisites and Restrictions..........................................................................................263

Configuring DCBx.......................................................................................................................264

Verifying the DCB Configuration..................................................................................................... 268

PFC and ETS Configuration Examples............................................................................................. 278

Using PFC and ETS to Manage Data Center Traffic...................................................................278

Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 282

Hierarchical Scheduling in ETS Output Policies........................................................................ 282

Configuring DCB Maps and its Attributes........................................................................................283

DCB Map: Configuration Procedure..........................................................................................283

Important Points to Remember................................................................................................. 284

Applying a DCB Map on a Port...................................................................................................284

Configuring PFC without a DCB Map........................................................................................ 285

Configuring Lossless Queues.....................................................................................................285

Priority-Based Flow Control Using Dynamic Buffer Method..........................................................286

Pause and Resume of Traffic......................................................................................................286

Buffer Sizes for Lossless or PFC Packets....................................................................................287

Interworking of DCB Map With DCB Buffer Threshold Settings.................................................... 288

Configuring the Dynamic Buffer Method........................................................................................289

13 Debugging and Diagnostics.............................................................................291

Offline Diagnostics............................................................................................................................291

Important Points to Remember..................................................................................................291

Running Offline Diagnostics.......................................................................................................292

Trace Logs.........................................................................................................................................294

Auto Save on Crash or Rollover................................................................................................. 295

Using the Show Hardware Commands........................................................................................... 295

Enabling Environmental Monitoring................................................................................................ 297

Recognize an Over-Temperature Condition............................................................................ 298

Troubleshoot an Over-Temperature Condition........................................................................298

Recognize an Under-Voltage Condition................................................................................... 299

Troubleshoot an Under-Voltage Condition.............................................................................. 299

Buffer Tuning....................................................................................................................................300

Deciding to Tune Buffers............................................................................................................301

Using a Pre-Defined Buffer Profile.............................................................................................304

Sample Buffer Profile Configuration..........................................................................................304

Troubleshooting Packet Loss...........................................................................................................305

Displaying Drop Counters.......................................................................................................... 305

Dataplane Statistics.....................................................................................................................306

Display Stack Port Statistics........................................................................................................ 307

Display Stack Member Counters................................................................................................308

Enabling Application Core Dumps...................................................................................................308

Mini Core Dumps..............................................................................................................................309

Enabling TCP Dumps........................................................................................................................ 310

14 Dynamic Host Configuration Protocol (DHCP)...........................................311

DHCP Packet Format and Options................................................................................................... 311

Assign an IP Address using DHCP...............................................................................................313

Implementation Information............................................................................................................ 314

Configure the System to be a DHCP Server.................................................................................... 315

Configuring the Server for Automatic Address Allocation.........................................................315

Configuration Tasks.................................................................................................................... 316

Specifying a Default Gateway..................................................................................................... 317

Enabling the DHCP Server...........................................................................................................317

Configure a Method of Hostname Resolution...........................................................................318

Creating Manual Binding Entries................................................................................................ 318

Debugging the DHCP Server...................................................................................................... 319

Using DHCP Clear Commands...................................................................................................319

Configure the System to be a Relay Agent......................................................................................320

Configure the System to be a DHCP Client.....................................................................................322

Configuring the DHCP Client System........................................................................................ 322

DHCP Client on a Management Interface................................................................................. 326

DHCP Client Operation with Other Features.............................................................................327

Configure Secure DHCP...................................................................................................................328

Option 82.................................................................................................................................... 328

DHCP Snooping..........................................................................................................................329

Drop DHCP Packets on Snooped VLANs Only.......................................................................... 331

Dynamic ARP Inspection.............................................................................................................331

Configuring Dynamic ARP Inspection........................................................................................332

Source Address Validation.......................................................................................................... 333

15 Equal Cost Multi-Path (ECMP)........................................................................ 336

ECMP for Flow-Based Affinity.......................................................................................................... 336

Enabling Deterministic ECMP Next Hop....................................................................................336

Link Bundle Monitoring.................................................................................................................... 336

Managing ECMP Group Paths.......................................................................................................... 337

16 FCoE Transit.........................................................................................................338

Fibre Channel over Ethernet............................................................................................................ 338

Ensure Robustness in a Converged Ethernet Network...................................................................338

FIP Snooping on Ethernet Bridges...................................................................................................340

FIP Snooping in a Switch Stack........................................................................................................ 342

Using FIP Snooping...........................................................................................................................342

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

Enabling the FCoE Transit Feature.............................................................................................343

Enable FIP Snooping on VLANs..................................................................................................343

Configure the FC-MAP Value..................................................................................................... 343

Configure a Port for a Bridge-to-Bridge Link............................................................................343

Configure a Port for a Bridge-to-FCF Link................................................................................ 344

Impact on Other Software Features...........................................................................................344

FIP Snooping Prerequisites.........................................................................................................344

FIP Snooping Restrictions...........................................................................................................345

Configuring FIP Snooping.......................................................................................................... 345

Displaying FIP Snooping Information.............................................................................................. 346

FCoE Transit Configuration Example...............................................................................................352

17 FIPS Cryptography............................................................................................. 354

Preparing the System........................................................................................................................354

Enabling FIPS Mode.......................................................................................................................... 354

Generating Host-Keys...................................................................................................................... 355

Monitoring FIPS Mode Status........................................................................................................... 355

Disabling FIPS Mode......................................................................................................................... 356

18 Force10 Resilient Ring Protocol (FRRP)........................................................357

Protocol Overview............................................................................................................................ 357

Ring Status...................................................................................................................................358

Multiple FRRP Rings.................................................................................................................... 359

Important FRRP Points................................................................................................................360

Important FRRP Concepts.......................................................................................................... 361

Implementing FRRP.......................................................................................................................... 362

FRRP Configuration.......................................................................................................................... 362

Creating the FRRP Group........................................................................................................... 363

Configuring the Control VLAN................................................................................................... 363

Configuring and Adding the Member VLANs.............................................................................365

Setting the FRRP Timers............................................................................................................. 366

Clearing the FRRP Counters.......................................................................................................366

Viewing the FRRP Configuration................................................................................................ 367

Viewing the FRRP Information....................................................................................................367

Troubleshooting FRRP......................................................................................................................367

Configuration Checks.................................................................................................................367

Sample Configuration and Topology.............................................................................................. 368

19 GARP VLAN Registration Protocol (GVRP).................................................. 370

Important Points to Remember....................................................................................................... 370

Configure GVRP................................................................................................................................370

Related Configuration Tasks....................................................................................................... 371

Enabling GVRP Globally.................................................................................................................... 371

Enabling GVRP on a Layer 2 Interface..............................................................................................372

Configure GVRP Registration........................................................................................................... 372

Configure a GARP Timer...................................................................................................................373

20 Internet Group Management Protocol (IGMP)...........................................375

IGMP Protocol Overview.................................................................................................................. 375

IGMP Version 2............................................................................................................................375

IGMP Version 3............................................................................................................................ 377

IGMP Snooping.................................................................................................................................380

IGMP Snooping Implementation Information...........................................................................380

Configuring IGMP Snooping.......................................................................................................381

Enabling IGMP Immediate-Leave...............................................................................................381

Disabling Multicast Flooding...................................................................................................... 382

Specifying a Port as Connected to a Multicast Router..............................................................382

Configuring the Switch as Querier.............................................................................................382

Fast Convergence after MSTP Topology Changes......................................................................... 383

Designating a Multicast Router Interface.........................................................................................383

21 Interfaces..............................................................................................................384

Basic Interface Configuration.......................................................................................................... 384

Advanced Interface Configuration...................................................................................................384

Interface Types..................................................................................................................................385

View Basic Interface Information.....................................................................................................385

Enabling a Physical Interface............................................................................................................387

Physical Interfaces............................................................................................................................388

Configuration Task List for Physical Interfaces......................................................................... 388

Overview of Layer Modes...........................................................................................................388

Configuring Layer 2 (Data Link) Mode....................................................................................... 389

Configuring Layer 2 (Interface) Mode........................................................................................389

Configuring Layer 3 (Network) Mode........................................................................................ 389

Configuring Layer 3 (Interface) Mode........................................................................................390

Management Interfaces.................................................................................................................... 391

Configuring Management Interfaces on the XML Switch..........................................................391

VLAN Interfaces.................................................................................................................................393

Loopback Interfaces......................................................................................................................... 394

Null Interfaces...................................................................................................................................394

Port Channel Interfaces....................................................................................................................394

Port Channel Definition and Standards......................................................................................395

Port Channel Benefits.................................................................................................................395

Port Channel Implementation....................................................................................................395

100/1000/10000 Mbps Interfaces in Port Channels.................................................................396

Configuration Tasks for Port Channel Interfaces......................................................................396

Creating a Port Channel............................................................................................................. 396

Adding a Physical Interface to a Port Channel.......................................................................... 397

Reassigning an Interface to a New Port Channel......................................................................399

Configuring the Minimum Oper Up Links in a Port Channel....................................................399

Adding or Removing a Port Channel from a VLAN...................................................................400

Assigning an IP Address to a Port Channel............................................................................... 400

Deleting or Disabling a Port Channel.........................................................................................401

Server Ports....................................................................................................................................... 401

Default Configuration without Start-up Config.........................................................................401

Bulk Configuration............................................................................................................................402

Interface Range...........................................................................................................................402

Bulk Configuration Examples.....................................................................................................402

Defining Interface Range Macros.................................................................................................... 404

Define the Interface Range........................................................................................................ 404

Choosing an Interface-Range Macro........................................................................................ 404

Monitoring and Maintaining Interfaces............................................................................................405

Maintenance Using TDR.............................................................................................................406

Splitting QSFP Ports to SFP+ Ports.................................................................................................. 406

Merging SFP+ Ports to QSFP 40G Ports.................................................................................... 407

Configure the MTU Size on an Interface...................................................................................408

Layer 2 Flow Control Using Ethernet Pause Frames.......................................................................408

Enabling Pause Frames...............................................................................................................409

Configure MTU Size on an Interface............................................................................................... 409

Port-Pipes..........................................................................................................................................410

Auto-Negotiation on Ethernet Interfaces........................................................................................410

Setting the Speed and Duplex Mode of Ethernet Interfaces..................................................... 411

View Advanced Interface Information..............................................................................................413

Configuring the Interface Sampling Size....................................................................................414

Dynamic Counters...................................................................................................................... 415

Enhanced Validation of Interface Ranges........................................................................................416

22 Internet Protocol Security (IPSec)..................................................................417

Configuring IPSec ............................................................................................................................ 418

23 IPv4 Routing........................................................................................................ 419

IP Addresses...................................................................................................................................... 419

Implementation Information...................................................................................................... 419

Configuration Tasks for IP Addresses.........................................................................................419

IPv4 Path MTU Discovery Overview.................................................................................................422

Using the Configured Source IP Address in ICMP Messages..........................................................423

Configuring the ICMP Source Interface.....................................................................................423

Configuring the Duration to Establish a TCP Connection..............................................................424

Enabling Directed Broadcast............................................................................................................424

Resolution of Host Names............................................................................................................... 424

Enabling Dynamic Resolution of Host Names...........................................................................425

Specifying the Local System Domain and a List of Domains....................................................425

Configuring DNS with Traceroute............................................................................................. 426

ARP.................................................................................................................................................... 427

Configuration Tasks for ARP.......................................................................................................427

ARP Learning via Gratuitous ARP..................................................................................................... 429

ARP Learning via ARP Request......................................................................................................... 429

Configuring ARP Retries...................................................................................................................430

ICMP.................................................................................................................................................. 431

Configuration Tasks for ICMP.....................................................................................................431

UDP Helper........................................................................................................................................431

Configure UDP Helper................................................................................................................ 431

Important Points to Remember..................................................................................................431

Enabling UDP Helper.................................................................................................................. 432

Configurations Using UDP Helper................................................................................................... 432

UDP Helper with Broadcast-All Addresses................................................................................ 432

UDP Helper with Subnet Broadcast Addresses..........................................................................433

UDP Helper with Configured Broadcast Addresses.................................................................. 434

UDP Helper with No Configured Broadcast Addresses............................................................ 434

Troubleshooting UDP Helper...........................................................................................................435

24 IPv6 Addressing..................................................................................................436

Protocol Overview............................................................................................................................436

Extended Address Space............................................................................................................ 436

Stateless Autoconfiguration....................................................................................................... 436

IPv6 Header Fields............................................................................................................................ 438

Version (4 bits)............................................................................................................................ 438

Traffic Class (8 bits).....................................................................................................................438

Flow Label (20 bits).....................................................................................................................438

Payload Length (16 bits)..............................................................................................................438

Next Header (8 bits).................................................................................................................... 438

Hop Limit (8 bits).........................................................................................................................439

Source Address (128 bits)........................................................................................................... 439

Destination Address (128 bits).................................................................................................... 439

Extension Header Fields................................................................................................................... 439

Hop-by-Hop Options Header....................................................................................................440

Addressing........................................................................................................................................ 440

Link-local Addresses................................................................................................................... 441

Static and Dynamic Addressing.................................................................................................. 441

Implementing IPv6 with the Dell Networking OS........................................................................... 442

ICMPv6..............................................................................................................................................444

Path MTU Discovery......................................................................................................................... 445

IPv6 Neighbor Discovery..................................................................................................................445

IPv6 Neighbor Discovery of MTU Packets.................................................................................446

Configuring the IPv6 Recursive DNS Server..............................................................................446

Debugging IPv6 RDNSS Information Sent to the Host .............................................................447

Displaying IPv6 RDNSS Information...........................................................................................448

IPv6 Multicast....................................................................................................................................448

Secure Shell (SSH) Over an IPv6 Transport..................................................................................... 449

Configuration Task List for IPv6.......................................................................................................449

Adjusting Your CAM-Profile....................................................................................................... 449

Assigning an IPv6 Address to an Interface.................................................................................450

Assigning a Static IPv6 Route......................................................................................................451

Configuring Telnet with IPv6...................................................................................................... 451

SNMP over IPv6...........................................................................................................................452

Showing IPv6 Information.......................................................................................................... 452

Showing an IPv6 Interface..........................................................................................................452

Showing IPv6 Routes.................................................................................................................. 453

Showing the Running-Configuration for an Interface..............................................................454

Clearing IPv6 Routes...................................................................................................................455

25 iSCSI Optimization............................................................................................ 456

iSCSI Optimization Overview........................................................................................................... 456

Monitoring iSCSI Traffic Flows................................................................................................... 458

Information Monitored in iSCSI Traffic Flows............................................................................458

Detection and Auto-Configuration for Dell EqualLogic Arrays................................................ 458

Configuring Detection and Ports for Dell Compellent Arrays.................................................. 459

iSCSI Optimization: Operation................................................................................................... 459

Default iSCSI Optimization Values............................................................................................. 459

Displaying iSCSI Optimization Information.....................................................................................460

26 Intermediate System to Intermediate System............................................462

IS-IS Protocol Overview................................................................................................................... 462

IS-IS Addressing................................................................................................................................462

Multi-Topology IS-IS........................................................................................................................ 463

Transition Mode..........................................................................................................................464

Interface Support........................................................................................................................464

Adjacencies................................................................................................................................. 464

Graceful Restart................................................................................................................................464

Timers..........................................................................................................................................465

Implementation Information............................................................................................................465

Configuration Information............................................................................................................... 466

Configuration Tasks for IS-IS..................................................................................................... 466

IS-IS Metric Styles............................................................................................................................. 482

Configure Metric Values...................................................................................................................483

Maximum Values in the Routing Table...................................................................................... 483

Change the IS-IS Metric Style in One Level Only......................................................................483

Leaks from One Level to Another.............................................................................................. 485

Sample Configurations.....................................................................................................................486

27 Link Aggregation Control Protocol (LACP)................................................. 491

Introduction to Dynamic LAGs and LACP........................................................................................491

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

LACP Modes................................................................................................................................492

Configuring LACP Commands...................................................................................................492

LACP Configuration Tasks................................................................................................................493

Creating a LAG............................................................................................................................ 493

Configuring the LAG Interfaces as Dynamic............................................................................. 494

Setting the LACP Long Timeout.................................................................................................494

Shared LAG State Tracking...............................................................................................................495

Configuring Shared LAG State Tracking.......................................................................................... 496

Important Points about Shared LAG State Tracking..................................................................497

LACP Basic Configuration Example.................................................................................................498

Configure a LAG on ALPHA........................................................................................................498

28 Layer 2...................................................................................................................507

Manage the MAC Address Table...................................................................................................... 507

Clearing the MAC Address Table................................................................................................507

Setting the Aging Time for Dynamic Entries..............................................................................507

Configuring a Static MAC Address............................................................................................. 508

Displaying the MAC Address Table............................................................................................ 508

MAC Learning Limit.......................................................................................................................... 508

Setting the MAC Learning Limit..................................................................................................509

mac learning-limit Dynamic.......................................................................................................509

mac learning-limit station-move...............................................................................................509

Learning Limit Violation Actions.................................................................................................510

Setting Station Move Violation Actions...................................................................................... 510

Recovering from Learning Limit and Station Move Violations..................................................510

NIC Teaming......................................................................................................................................511

MAC Move Optimization.............................................................................................................512

29 Link Layer Discovery Protocol (LLDP)...........................................................513

802.1AB (LLDP) Overview..................................................................................................................513

Protocol Data Units..................................................................................................................... 513

Optional TLVs.................................................................................................................................... 514

Management TLVs.......................................................................................................................514

TIA-1057 (LLDP-MED) Overview...................................................................................................... 516

TIA Organizationally Specific TLVs..............................................................................................517

Extended Power via MDI TLV......................................................................................................521

Configure LLDP................................................................................................................................. 521

Related Configuration Tasks....................................................................................................... 521

Important Points to Remember..................................................................................................522

LLDP Compatibility......................................................................................................................522

CONFIGURATION versus INTERFACE Configurations....................................................................522

Enabling LLDP................................................................................................................................... 523

Disabling and Undoing LLDP......................................................................................................523

Advertising TLVs................................................................................................................................523

Viewing the LLDP Configuration......................................................................................................525

Viewing Information Advertised by Adjacent LLDP Agents.............................................................525

Configuring LLDPDU Intervals......................................................................................................... 526

Configuring Transmit and Receive Mode........................................................................................ 527

Configuring a Time to Live...............................................................................................................528

Debugging LLDP...............................................................................................................................529

Relevant Management Objects........................................................................................................530

30 Microsoft Network Load Balancing.............................................................. 536

NLB Unicast Mode Scenario.............................................................................................................536

NLB Multicast Mode Scenario...........................................................................................................537

Limitations With Enabling NLB on Switches.................................................................................... 537

Benefits and Working of Microsoft Clustering.................................................................................537

Enable and Disable VLAN Flooding .................................................................................................538

Configuring a Switch for NLB ..........................................................................................................538

..................................................................................................................................................... 538

31 Multicast Source Discovery Protocol (MSDP).............................................539

Protocol Overview............................................................................................................................539

Anycast RP.........................................................................................................................................541

Implementation Information............................................................................................................ 541

Configure the Multicast Source Discovery Protocol....................................................................... 541

Related Configuration Tasks.......................................................................................................541

Enabling MSDP..................................................................................................................................545

Manage the Source-Active Cache...................................................................................................546

Viewing the Source-Active Cache............................................................................................. 546

Limiting the Source-Active Cache............................................................................................. 547

Clearing the Source-Active Cache.............................................................................................547

Enabling the Rejected Source-Active Cache.............................................................................547

Accept Source-Active Messages that Fail the RFP Check...............................................................547

Specifying Source-Active Messages.................................................................................................551

Limiting the Source-Active Messages from a Peer..........................................................................552

Preventing MSDP from Caching a Local Source............................................................................. 552

Preventing MSDP from Caching a Remote Source.........................................................................553

Preventing MSDP from Advertising a Local Source.........................................................................554

Logging Changes in Peership States................................................................................................555

Terminating a Peership.....................................................................................................................555

Clearing Peer Statistics..................................................................................................................... 555

Debugging MSDP..............................................................................................................................556

MSDP with Anycast RP......................................................................................................................556

Configuring Anycast RP....................................................................................................................558

Reducing Source-Active Message Flooding..............................................................................558

Specifying the RP Address Used in SA Messages.......................................................................558

MSDP Sample Configurations...........................................................................................................561

32 Multiple Spanning Tree Protocol (MSTP).................................................... 564

Protocol Overview............................................................................................................................564

Spanning Tree Variations..................................................................................................................565

Implementation Information............................................................................................................565

Configure Multiple Spanning Tree Protocol....................................................................................565

Related Configuration Tasks.......................................................................................................565

Enable Multiple Spanning Tree Globally..........................................................................................566

Creating Multiple Spanning Tree Instances.....................................................................................566

Influencing MSTP Root Selection.....................................................................................................567

Interoperate with Non-Dell Networking OS Bridges...................................................................... 568

Changing the Region Name or Revision......................................................................................... 568

Modifying Global Parameters...........................................................................................................569

Enable BPDU Filtering Globally.........................................................................................................571

Modifying the Interface Parameters................................................................................................. 571

Configuring an EdgePort.................................................................................................................. 572

Flush MAC Addresses after a Topology Change..............................................................................573

MSTP Sample Configurations........................................................................................................... 573

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

ConfigurationSFTOS Example Running-Configuration.............................................................574

Debugging and Verifying MSTP Configurations.............................................................................. 577

33 Multicast Features..............................................................................................579

Enabling IP Multicast.........................................................................................................................579

Multicast with ECMP......................................................................................................................... 579

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

First Packet Forwarding for Lossless Multicast................................................................................ 581

Multicast Policies...............................................................................................................................581

IPv4 Multicast Policies.......................................................................................................................581

Limiting the Number of Multicast Routes.................................................................................. 581

Preventing a Host from Joining a Group...................................................................................582

Rate Limiting IGMP Join Requests............................................................................................. 585

Preventing a PIM Router from Forming an Adjacency..............................................................585

Preventing a Source from Registering with the RP................................................................... 585

Preventing a PIM Router from Processing a Join......................................................................588

34 Open Shortest Path First (OSPFv2 and OSPFv3)........................................589

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

Autonomous System (AS) Areas................................................................................................. 589

Area Types...................................................................................................................................590

Networks and Neighbors............................................................................................................ 591

Router Types................................................................................................................................591

Link-State Advertisements (LSAs)............................................................................................... 593

Router Priority and Cost............................................................................................................. 594

OSPF with the Dell Networking OS..................................................................................................595

Graceful Restart.......................................................................................................................... 596

Fast Convergence (OSPFv2, IPv4 Only)......................................................................................597

Multi-Process OSPFv2 (IPv4 only).............................................................................................. 597

RFC-2328 Compliant OSPF Flooding........................................................................................ 598

OSPF ACK Packing......................................................................................................................599

Setting OSPF Adjacency with Cisco Routers............................................................................. 599

Configuration Information...............................................................................................................600

Configuration Task List for OSPFv2 (OSPF for IPv4)................................................................. 600

Troubleshooting OSPFv2............................................................................................................614

Configuration Task List for OSPFv3 (OSPF for IPv6)........................................................................ 617

Enabling IPv6 Unicast Routing....................................................................................................618

Assigning IPv6 Addresses on an Interface..................................................................................618

Assigning Area ID on an Interface.............................................................................................. 618

Assigning OSPFv3 Process ID and Router ID Globally...............................................................619

Configuring Stub Areas............................................................................................................... 619

Configuring Passive-Interface.................................................................................................... 619

Redistributing Routes................................................................................................................. 620

Configuring a Default Route...................................................................................................... 620

Enabling OSPFv3 Graceful Restart..............................................................................................621

Displaying Graceful Restart........................................................................................................ 622

OSPFv3 Authentication Using IPsec...........................................................................................623

35 Policy-based Routing (PBR)............................................................................ 632

Overview........................................................................................................................................... 632

Implementing Policy-based Routing with Dell Networking OS.....................................................634

Configuration Task List for Policy-based Routing.......................................................................... 634

PBR Exceptions (Permit)............................................................................................................. 637

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Dell Force10 MXL Blade User guide

Dell Force10 MXL Blade User guide

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