Dell C9010 Modular Chassis Switch User guide

Dell EMC Networking Conguration Guide for the

C9010 Series

Version 9.14.2.1

Notes, Cautions, and Warnings

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

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

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

may be trademarks of their respective owners.

2019 - 06

Rev. A00

Contents

1 About this Guide...........................................................................................................................................37

Audience............................................................................................................................................................................37

Conventions...................................................................................................................................................................... 37

Related Documents..........................................................................................................................................................37

2 Conguration Fundamentals........................................................................................................................ 38

Accessing the Command Line........................................................................................................................................38

CLI Modes.........................................................................................................................................................................38

Navigating CLI Modes...............................................................................................................................................40

The do Command............................................................................................................................................................ 43

Undoing Commands........................................................................................................................................................ 43

Obtaining Help..................................................................................................................................................................44

Entering and Editing Commands....................................................................................................................................44

Command History............................................................................................................................................................45

Filtering show Command Outputs.................................................................................................................................45

Multiple Users in Conguration Mode........................................................................................................................... 47

3 Getting Started............................................................................................................................................48

Console Access................................................................................................................................................................48

Serial Console.............................................................................................................................................................49

Mounting an NFS File System........................................................................................................................................50

Important Points to Remember............................................................................................................................... 50

Default Conguration....................................................................................................................................................... 51

Conguring a Host Name................................................................................................................................................ 51

Accessing the System Remotely....................................................................................................................................52

Accessing the System Remotely..............................................................................................................................52

Congure the Management Port IP Address......................................................................................................... 52

Congure a Management Route..............................................................................................................................52

Conguring a Username and Password.................................................................................................................. 53

Conguring the Enable Password..................................................................................................................................54

Manage Conguration Files............................................................................................................................................54

File Storage.................................................................................................................................................................54

Copy Files to and from the System......................................................................................................................... 55

Save the Running-Conguration..............................................................................................................................56

Congure the Overload Bit for a Startup Scenario............................................................................................... 56

Viewing Files...............................................................................................................................................................56

Changes in Conguration Files................................................................................................................................. 57

Viewing Command History............................................................................................................................................. 58

Upgrading the Dell Networking OS............................................................................................................................... 58

4 Switch Management....................................................................................................................................59

Conguring Privilege Levels........................................................................................................................................... 59

Contents

3

Creating a Custom Privilege Level...........................................................................................................................59

Removing a Command from EXEC Mode.............................................................................................................. 59

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................59

Allowing Access to CONFIGURATION Mode Commands....................................................................................60

Allowing Access to the Following Modes................................................................................................................60

Applying a Privilege Level to a Username................................................................................................................61

Applying a Privilege Level to a Terminal Line.......................................................................................................... 62

Conguring Logging........................................................................................................................................................ 62

Audit and Security Logs............................................................................................................................................ 62

Conguring Logging Format ...................................................................................................................................64

Setting Up a Secure Connection to a Syslog Server.............................................................................................64

Track Login Activity......................................................................................................................................................... 66

Restrictions for Tracking Login Activity.................................................................................................................. 66

Conguring Login Activity Tracking.........................................................................................................................66

Display Login Statistics..............................................................................................................................................66

Limit Concurrent Login Sessions....................................................................................................................................68

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 68

Conguring Concurrent Session Limit.....................................................................................................................68

Enabling the System to Clear Existing Sessions.................................................................................................... 69

Enabling Secured CLI Mode........................................................................................................................................... 69

Log Messages in the Internal Buer..............................................................................................................................70

Conguration Task List for System Log Management.......................................................................................... 70

Disabling System Logging............................................................................................................................................... 70

Sending System Messages to a Syslog Server............................................................................................................ 70

Conguring a UNIX System as a Syslog Server......................................................................................................71

Display the Logging Buer and the Logging Conguration.........................................................................................71

Changing System Logging Settings...............................................................................................................................72

Conguring a UNIX Logging Facility Level....................................................................................................................72

Synchronizing Log Messages......................................................................................................................................... 73

Enabling Timestamp on Syslog Messages.................................................................................................................... 74

File Transfer Services.......................................................................................................................................................74

Conguration Task List for File Transfer Services.................................................................................................. 74

Enabling the FTP Server...........................................................................................................................................75

Conguring FTP Server Parameters....................................................................................................................... 75

Conguring FTP Client Parameters.........................................................................................................................75

Terminal Lines................................................................................................................................................................... 76

Denying and Permitting Access to a Terminal Line................................................................................................ 76

Conguring Login Authentication for Terminal Lines............................................................................................. 77

Setting Time Out of EXEC Privilege Mode................................................................................................................... 77

Using Telnet to Access Another Network Device........................................................................................................78

Lock CONFIGURATION Mode....................................................................................................................................... 79

Viewing the Conguration Lock Status...................................................................................................................79

LPC Bus Quality Degradation......................................................................................................................................... 79

LBQA (LPC Bus Quality Analyzer) Failure Detection mode..................................................................................80

Recovering from a Forgotten Password .......................................................................................................................81

4

Contents

Ignoring the Startup Conguration and Booting from the Factory-Default Conguration..................................... 81

Recovering from a Failed Start.......................................................................................................................................82

Restoring Factory-Default Settings............................................................................................................................... 82

Important Point to Remember..................................................................................................................................82

Restoring Factory-Default Boot Environment Variables....................................................................................... 83

Using Hashes to Verify Software Images Before Installation..................................................................................... 84

Verifying System Images on C9010 Components........................................................................................................85

When System Images on C9010 Components Do Not Match.............................................................................86

Manually Resetting the System Image on a C9010 Component......................................................................... 86

Logging in to the Virtual Console of a C9010 Component....................................................................................87

Booting the C9010 from an Image on a Network Server......................................................................................87

Conguring C9010 Components to Boot from the RPM CP Image....................................................................87

Viewing the Reason for Last System Reboot...............................................................................................................88

5 802.1X......................................................................................................................................................... 89

The Port-Authentication Process...................................................................................................................................91

EAP over RADIUS......................................................................................................................................................92

Conguring 802.1X...........................................................................................................................................................93

Related Conguration Tasks..................................................................................................................................... 93

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

Enabling 802.1X................................................................................................................................................................ 94

Conguring dot1x Prole ................................................................................................................................................96

Conguring MAC addresses for a do1x Prole.............................................................................................................96

Conguring the Static MAB and MAB Prole ............................................................................................................. 97

Conguring Critical VLAN ..............................................................................................................................................98

Conguring Request Identity Re-Transmissions...........................................................................................................98

Conguring a Quiet Period after a Failed Authentication........................................................................................... 99

Forcibly Authorizing or Unauthorizing a Port..............................................................................................................100

Re-Authenticating a Port............................................................................................................................................... 101

Conguring Dynamic VLAN Assignment with Port Authentication..........................................................................101

Guest and Authentication-Fail VLANs.........................................................................................................................102

Conguring a Guest VLAN......................................................................................................................................103

Conguring an Authentication-Fail VLAN............................................................................................................. 104

Conguring Timeouts.............................................................................................................................................. 105

Multi-Host Authentication.............................................................................................................................................106

Conguring Multi-Host AuthenticationConguring Single-Host Authentication..............................................107

Multi-Supplicant Authentication...................................................................................................................................108

Conguring Multi-Supplicant AuthenticationRestricting Multi-Supplicant Authentication.............................109

MAC Authentication Bypass..........................................................................................................................................110

MAB in Single-host and Multi-Host Mode.............................................................................................................110

MAB in Multi-Supplicant Authentication Mode......................................................................................................111

Conguring MAC Authentication Bypass................................................................................................................111

Dynamic CoS with 802.1X.............................................................................................................................................. 112

6 Access Control Lists (ACLs)........................................................................................................................114

IP Access Control Lists (ACLs)......................................................................................................................................114

Contents

5

CAM Usage................................................................................................................................................................115

User-Congurable CAM Allocation......................................................................................................................... 116

Allocating CAM for Ingress ACLs on the Port Extender...................................................................................... 116

Allocating CAM for Egress ACLs on the Port Extender....................................................................................... 118

Implementing ACLs on Dell EMC Networking OS.................................................................................................119

ACL Optimization to Increase Number of Supported IPv4 ACLs.............................................................................120

Restrictions for ACL Optimization..........................................................................................................................120

Optimizing ACL for More Number of IPv4 ACL Rules..........................................................................................121

IP Fragment Handling..................................................................................................................................................... 121

IP Fragments ACL Examples....................................................................................................................................121

Layer 4 ACL Rules Examples...................................................................................................................................122

Congure a Standard IP ACL........................................................................................................................................ 123

Conguring a Standard IP ACL Filter..................................................................................................................... 124

Congure an Extended IP ACL..................................................................................................................................... 125

Conguring Filters with a Sequence Number.......................................................................................................125

Conguring Filters Without a Sequence Number.................................................................................................126

Congure Layer 2 and Layer 3 ACLs............................................................................................................................127

Using ACL VLAN Groups............................................................................................................................................... 127

Guidelines for Conguring ACL VLAN Groups......................................................................................................127

Conguring an ACL VLAN Group...........................................................................................................................128

Allocating ACL VLAN CAM..................................................................................................................................... 129

Applying an IP ACL.........................................................................................................................................................129

Applying Ingress ACLs on the Port Extender........................................................................................................130

Applying Egress ACLs...............................................................................................................................................131

Applying Layer 3 Egress ACLs on Control-Plane Trac.......................................................................................131

Counting ACL Hits....................................................................................................................................................132

IP Prex Lists.................................................................................................................................................................. 132

Implementation Information.................................................................................................................................... 132

Conguration Task List for Prex Lists.................................................................................................................. 133

ACL Remarks.................................................................................................................................................................. 136

Conguring a Remark.............................................................................................................................................. 136

Deleting a Remark.....................................................................................................................................................137

ACL Resequencing......................................................................................................................................................... 137

Resequencing an ACL or Prex List.......................................................................................................................138

Route Maps.....................................................................................................................................................................139

Implementation Information.................................................................................................................................... 139

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

Conguration Task List for Route Maps................................................................................................................ 140

Conguring Match Routes...................................................................................................................................... 142

Conguring Set Conditions..................................................................................................................................... 143

Congure a Route Map for Route Redistribution.................................................................................................144

Congure a Route Map for Route Tagging........................................................................................................... 145

Continue Clause........................................................................................................................................................145

Conguring a UDF ACL................................................................................................................................................. 145

Hot-Lock Behavior..........................................................................................................................................................147

6

Contents

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 148

How BFD Works............................................................................................................................................................. 148

BFD Packet Format..................................................................................................................................................149

BFD Sessions............................................................................................................................................................ 150

BFD Three-Way Handshake.....................................................................................................................................151

Session State Changes............................................................................................................................................153

Important Points to Remember.................................................................................................................................... 153

Congure BFD................................................................................................................................................................ 153

Congure BFD for Physical Ports...........................................................................................................................154

Congure BFD for Static Routes............................................................................................................................155

Congure BFD for IPv6 Static Routes...................................................................................................................158

Congure BFD for OSPF.........................................................................................................................................160

Congure BFD for OSPFv3.....................................................................................................................................164

Congure BFD for IS-IS........................................................................................................................................... 167

Congure BFD for BGP...........................................................................................................................................169

Congure BFD for VRRP.........................................................................................................................................175

Conguring Protocol Liveness................................................................................................................................ 178

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................179

Autonomous Systems (AS)........................................................................................................................................... 179

Sessions and Peers......................................................................................................................................................... 181

Establish a Session....................................................................................................................................................181

Route Reectors.............................................................................................................................................................182

Communities............................................................................................................................................................. 183

BGP Attributes................................................................................................................................................................183

Best Path Selection Criteria....................................................................................................................................183

Weight........................................................................................................................................................................185

Local Preference.......................................................................................................................................................185

Multi-Exit Discriminators (MEDs)...........................................................................................................................186

Origin.......................................................................................................................................................................... 187

AS Path...................................................................................................................................................................... 187

Next Hop................................................................................................................................................................... 188

Multiprotocol BGP..........................................................................................................................................................188

Implement BGP ..............................................................................................................................................................188

Additional Path (Add-Path) Support......................................................................................................................188

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 189

Ignore Router-ID for Some Best-Path Calculations............................................................................................. 189

Four-Byte AS Numbers............................................................................................................................................189

AS4 Number Representation..................................................................................................................................190

AS Number Migration............................................................................................................................................... 191

BGP4 Management Information Base (MIB)........................................................................................................193

Important Points to Remember.............................................................................................................................. 193

Conguration Information..............................................................................................................................................194

BGP Conguration......................................................................................................................................................... 194

Enabling BGP............................................................................................................................................................ 195

Contents

7

Conguring AS4 Number Representations........................................................................................................... 198

Conguring Peer Groups.........................................................................................................................................199

Conguring BGP Fast Fail-Over............................................................................................................................ 202

Conguring Passive Peering...................................................................................................................................203

Maintaining Existing AS Numbers During an AS Migration................................................................................ 204

Allowing an AS Number to Appear in its Own AS Path...................................................................................... 205

Filtering on an AS-Path Attribute.......................................................................................................................... 206

Regular Expressions as Filters................................................................................................................................ 207

Redistributing Routes..............................................................................................................................................208

Enabling Additional Paths....................................................................................................................................... 209

Conguring IP Community Lists............................................................................................................................ 209

Conguring an IP Extended Community List........................................................................................................210

Filtering Routes with Community Lists...................................................................................................................211

Manipulating the COMMUNITY Attribute.............................................................................................................212

Changing MED Attributes....................................................................................................................................... 213

Changing the LOCAL_PREFERENCE Attribute...................................................................................................214

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 214

Changing the WEIGHT Attribute............................................................................................................................215

Enabling Multipath....................................................................................................................................................215

Filtering BGP Routes................................................................................................................................................216

Filtering BGP Routes Using Route Maps...............................................................................................................217

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 218

Conguring BGP Route Reectors........................................................................................................................ 218

Aggregating Routes..................................................................................................................................................219

Conguring BGP Confederations...........................................................................................................................219

Enabling Route Flap Dampening............................................................................................................................ 220

Changing BGP Timers.............................................................................................................................................222

Setting the extended timer.....................................................................................................................................223

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................223

Enabling or disabling BGP neighbors.....................................................................................................................224

Route Map Continue............................................................................................................................................... 225

Enabling MBGP Congurations................................................................................................................................... 226

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor..........................................227

BGP Regular Expression Optimization........................................................................................................................ 227

Debugging BGP..............................................................................................................................................................227

Storing Last and Bad PDUs....................................................................................................................................228

Capturing PDUs....................................................................................................................................................... 229

PDU Counters.......................................................................................................................................................... 230

Sample Congurations.................................................................................................................................................. 230

9 Content Addressable Memory (CAM)........................................................................................................ 239

CAM Allocation...............................................................................................................................................................239

Test CAM Usage.............................................................................................................................................................241

View CAM-ACL Settings............................................................................................................................................... 241

View CAM Usage...........................................................................................................................................................242

Conguring CAM Threshold and Silence Period........................................................................................................242

8

Contents

Setting CAM Threshold and Silence Period..........................................................................................................243

Return to the Default CAM Conguration..................................................................................................................244

CAM Optimization......................................................................................................................................................... 244

Applications for CAM Proling..................................................................................................................................... 244

LAG HashingLAG Hashing Based on Bidirectional Flow..................................................................................... 244

Unied Forwarding Table (UFT) Modes......................................................................................................................245

Conguring UFT Modes..........................................................................................................................................245

10 Control Plane Policing (CoPP)..................................................................................................................247

CoPP Implementation....................................................................................................................................................247

Protocol-based Control Plane Policing..................................................................................................................247

Queue-based Control Plane Policing..................................................................................................................... 247

CoPP Example............................................................................................................................................................... 249

Congure Control Plane Policing................................................................................................................................. 250

Conguring CoPP for Protocols............................................................................................................................ 250

Examples of Conguring CoPP for Protocols.......................................................................................................251

Conguring CoPP for CPU Queues...................................................................................................................... 252

Examples of Conguring CoPP for CPU Queues................................................................................................253

Displaying CoPP Conguration.............................................................................................................................. 254

Troubleshooting CoPP Operation................................................................................................................................ 257

Enabling CPU Trac Statistics...............................................................................................................................257

Viewing CPU Trac Statistics................................................................................................................................257

Troubleshooting CPU Packet Loss........................................................................................................................ 258

Viewing Per-Protocol CoPP Counters.................................................................................................................. 259

Viewing Per-Queue CoPP Counters..................................................................................................................... 262

11 Data Center Bridging (DCB)......................................................................................................................263

Enabling Data Center Bridging..................................................................................................................................... 263

Ethernet Enhancements in Data Center Bridging..................................................................................................... 264

Priority-Based Flow Control................................................................................................................................... 265

Enhanced Transmission Selection..........................................................................................................................266

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................267

Data Center Bridging in a Trac Flow...................................................................................................................267

QoS dot1p Trac Classication and Queue Assignment..........................................................................................268

SNMP Support for PFC and Buer Statistics Tracking............................................................................................268

DCB Maps and its Attributes........................................................................................................................................269

DCB Map: Conguration Procedure......................................................................................................................269

Important Points to Remember..............................................................................................................................270

Applying a DCB Map on a Port.............................................................................................................................. 270

Conguring PFC without a DCB Map....................................................................................................................271

Conguring Lossless Queues.................................................................................................................................. 271

Applying a DCB Map on a Line Card......................................................................................................................273

Data Center Bridging: Default Conguration..............................................................................................................273

Conguration Notes: PFC and ETS in a DCB Map.................................................................................................... 274

PFC Conguration Notes........................................................................................................................................274

ETS Conguration Notes........................................................................................................................................ 275

Contents

9

ETS Prerequisites and Restrictions........................................................................................................................275

Priority-Group Conguration Notes.......................................................................................................................276

Conguring Priority-Based Flow Control.................................................................................................................... 276

Conguring Lossless Queues..................................................................................................................................277

Conguring Enhanced Transmission Selection...........................................................................................................277

Creating an ETS Priority Group..............................................................................................................................278

ETS Operation with DCBx...................................................................................................................................... 279

Congure a DCBx Operation........................................................................................................................................ 279

DCBx Operation....................................................................................................................................................... 279

DCBx Port Roles...................................................................................................................................................... 280

DCB Conguration Exchange................................................................................................................................. 281

Conguration Source Election................................................................................................................................ 281

Propagation of DCB Information............................................................................................................................282

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 282

Behavior of Tagged Packets...................................................................................................................................283

Conguration Example for DSCP and PFC Priorities..........................................................................................283

DCBx Example..........................................................................................................................................................284

DCBx Prerequisites and Restrictions.....................................................................................................................285

Conguring DCBx....................................................................................................................................................285

Verifying the DCB Conguration................................................................................................................................. 288

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................298

PFC and ETS Conguration Examples........................................................................................................................298

Using PFC and ETS to Manage Data Center Trac................................................................................................. 299

PFC and ETS Conguration Command Examples.............................................................................................. 300

Using PFC and ETS to Manage Converged Ethernet Trac.............................................................................300

Hierarchical Scheduling in ETS Output Policies....................................................................................................301

Priority-Based Flow Control Using Dynamic Buer Method.................................................................................... 301

Pause and Resume of Trac.................................................................................................................................. 301

Buer Sizes for Lossless or PFC Packets............................................................................................................ 302

Conguring the Dynamic Buer Method................................................................................................................... 302

12 Debugging and Diagnostics...................................................................................................................... 304

Oine Diagnostics.........................................................................................................................................................304

Running Port Extender Oine Diagnostics on the Switch.................................................................................304

Running Oine Diagnostics on a Standalone Switch...........................................................................................311

TRACE Logs.................................................................................................................................................................... 331

Auto Save on Reload, Crash, or Rollover.............................................................................................................. 332

Uploading Trace Logs.............................................................................................................................................. 332

Last Restart Reason......................................................................................................................................................332

show hardware Commands.......................................................................................................................................... 333

Environmental Monitoring.............................................................................................................................................335

Displaying Port Extender Environment Information ........................................................................................... 335

Display Power Supply Status..................................................................................................................................335

Display Fan Status................................................................................................................................................... 336

Display Transceiver Type......................................................................................................................................... 336

Recognize an Over-Temperature Condition..........................................................................................................338

10

Contents

Troubleshoot an Over-Temperature Condition..................................................................................................... 339

Troubleshooting Packet Loss........................................................................................................................................ 341

Displaying Drop Counters........................................................................................................................................ 341

Displaying Dataplane Statistics...............................................................................................................................342

Displaying Line-Card Counters...............................................................................................................................344

Accessing Application Core Dumps.............................................................................................................................344

Mini Core Dumps........................................................................................................................................................... 345

Full Kernel Core Dumps.................................................................................................................................................346

Enabling TCP Dumps.....................................................................................................................................................346

Accessing Port Extender Core and Mini Core Dumps...............................................................................................347

13 Dynamic Host Conguration Protocol (DHCP).........................................................................................348

DHCP Packet Format and Options............................................................................................................................. 348

Assign an IP Address using DHCP...............................................................................................................................350

Implementation Information.......................................................................................................................................... 351

Congure the System to be a DHCP Server.............................................................................................................. 351

Conguring the Server for Automatic Address Allocation..................................................................................352

Specifying a Default Gateway................................................................................................................................ 353

Congure a Method of Hostname Resolution..................................................................................................... 354

Using DNS for Address Resolution........................................................................................................................354

Using NetBIOS WINS for Address Resolution..................................................................................................... 354

Creating Manual Binding Entries............................................................................................................................354

Debugging the DHCP Server.................................................................................................................................355

Using DHCP Clear Commands.............................................................................................................................. 355

Congure the System to be a Relay Agent................................................................................................................ 355

Congure the System to be a DHCP Client............................................................................................................... 357

DHCP Client on a Management Interface............................................................................................................ 357

DHCP Client Operation with Other Features....................................................................................................... 357

DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................358

Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 359

Non-default VRF conguration for DHCPv6 helper address...................................................................................360

Conguring DHCP relay source interface...................................................................................................................360

Global DHCP relay source IPv4 or IPv6 conguration .......................................................................................360

Interface level DHCP relay source IPv4 or IPv6 conguration .......................................................................... 361

Congure Secure DHCP...............................................................................................................................................362

Option 82..................................................................................................................................................................362

DHCPv6 relay agent options..................................................................................................................................363

DHCP Snooping.......................................................................................................................................................363

Drop DHCP Packets on Snooped VLANs Only....................................................................................................365

Dynamic ARP Inspection........................................................................................................................................ 366

Conguring Dynamic ARP Inspection....................................................................................................................367

Source Address Validation............................................................................................................................................ 368

Enabling IP Source Address Validation..................................................................................................................368

DHCP MAC Source Address Validation................................................................................................................ 369

Enabling IP+MAC Source Address Validation.......................................................................................................369

Viewing the Number of SAV Dropped Packets....................................................................................................370

Contents

11

Clearing the Number of SAV Dropped Packets................................................................................................... 370

14 Equal Cost Multi-Path (ECMP).................................................................................................................371

ECMP for Flow-Based Anity......................................................................................................................................371

Enabling Deterministic ECMP Next Hop............................................................................................................... 371

Conguring the Hash Algorithm Seed................................................................................................................... 371

Link Bundle Monitoring............................................................................................................................................372

Managing ECMP Group Paths..................................................................................................................................... 372

Creating an ECMP Group Bundle................................................................................................................................ 373

Modifying the ECMP Group Threshold.......................................................................................................................373

BGP Multipath Operation with Link Bankwidth......................................................................................................... 374

Dynamic Re-calculation of Link Bankwidth................................................................................................................ 375

Weighted ECMP for Static Routes..............................................................................................................................376

ECMP Support in L3 Host and LPM Tables............................................................................................................... 376

15 FCoE Transit.............................................................................................................................................377

Fibre Channel over Ethernet.........................................................................................................................................377

Ensure Robustness in a Converged Ethernet Network.............................................................................................377

FIP Snooping on Ethernet Bridges.............................................................................................................................. 379

FIP Snooping in a Switch Stack....................................................................................................................................381

Using FIP Snooping........................................................................................................................................................ 381

FIP Snooping Prerequisites......................................................................................................................................381

Important Points to Remember.............................................................................................................................. 381

Enabling the FCoE Transit Feature........................................................................................................................382

Enable FIP Snooping on VLANs.............................................................................................................................382

Congure the FC-MAP Value................................................................................................................................ 382

Congure a Port for a Bridge-to-Bridge Link....................................................................................................... 383

Congure a Port for a Bridge-to-FCF Link...........................................................................................................383

Impact on Other Software Features..................................................................................................................... 383

FIP Snooping Restrictions...................................................................................................................................... 383

Conguring FIP Snooping.............................................................................................................................................384

Displaying FIP Snooping Information...........................................................................................................................385

FCoE Transit Conguration Example.......................................................................................................................... 390

16 FIPS Cryptography...................................................................................................................................392

Conguration Tasks....................................................................................................................................................... 392

Preparing the System....................................................................................................................................................392

Enabling FIPS Mode...................................................................................................................................................... 393

Generating Host-Keys...................................................................................................................................................393

Monitoring FIPS Mode Status......................................................................................................................................393

Disabling FIPS Mode..................................................................................................................................................... 394

17 Flex Hash and Optimized Boot-Up............................................................................................................395

Flex Hash Capability Overview.................................................................................................................................... 395

Conguring the Flex Hash Mechanism.......................................................................................................................395

LACP Fast Switchover..................................................................................................................................................396

12

Contents

Conguring LACP Fast Switchover............................................................................................................................ 396

LACP............................................................................................................................................................................... 396

LACP Fast Switchover............................................................................................................................................396

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 396

Sample Congurations.................................................................................................................................................. 398

................................................................................................................................................................................... 398

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.......................................................................................401

18 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 402

Protocol Overview......................................................................................................................................................... 402

Ring Status............................................................................................................................................................... 403

Multiple FRRP Rings............................................................................................................................................... 403

Important FRRP Points...........................................................................................................................................404

Implementing FRRP.................................................................................................................................................404

Important FRRP Concepts.....................................................................................................................................404

FRRP Conguration...................................................................................................................................................... 405

Creating the FRRP Group...................................................................................................................................... 406

Conguring the Control VLAN...............................................................................................................................406

Conguring and Adding the Member VLANs.......................................................................................................407

Setting the FRRP Timers........................................................................................................................................408

Clearing the FRRP Counters..................................................................................................................................408

Viewing the FRRP Conguration...........................................................................................................................409

Viewing the FRRP Information.............................................................................................................................. 409

Troubleshooting FRRP.................................................................................................................................................. 409

Conguration Checks..............................................................................................................................................409

Sample Conguration and Topology............................................................................................................................409

FRRP Support on VLT.................................................................................................................................................... 411

Example Scenario......................................................................................................................................................411

Important Points to Remember.............................................................................................................................. 413

19 GARP VLAN Registration Protocol (GVRP).............................................................................................. 414

Important Points to Remember.................................................................................................................................... 414

Congure GVRP............................................................................................................................................................. 415

Related Conguration Tasks....................................................................................................................................415

Enabling GVRP Globally.................................................................................................................................................416

Enabling GVRP on a Layer 2 Interface.........................................................................................................................416

Congure GVRP Registration....................................................................................................................................... 416

Congure a GARP Timer............................................................................................................................................... 417

20 High Availability (HA)............................................................................................................................... 418

High Availability on Chassis........................................................................................................................................... 418

High Availability in a PE Stack.......................................................................................................................................418

Online Insertion and Removal........................................................................................................................................418

RPM Online Insertion............................................................................................................................................... 419

Line Card Online Insertion....................................................................................................................................... 419

Pre-conguring a Slot for a Line-Card Type......................................................................................................... 419

Contents

13

Replacing a Line Card..............................................................................................................................................420

Hitless Behavior............................................................................................................................................................. 420

Graceful Restart............................................................................................................................................................. 421

Software Resiliency........................................................................................................................................................421

System Health Monitoring.......................................................................................................................................421

Failure and Event Logging....................................................................................................................................... 421

Trace Log................................................................................................................................................................... 421

Core Dumps...............................................................................................................................................................421

System Log...............................................................................................................................................................422

Control Plane Redundancy........................................................................................................................................... 422

Control-Plane Failover.............................................................................................................................................422

RPM Synchronization..............................................................................................................................................423

Forcing an RPM Failover.........................................................................................................................................423

Specifying an Auto-Failover Limit.......................................................................................................................... 424

Disabling Auto-Reboot............................................................................................................................................ 424

21 Internet Group Management Protocol (IGMP)......................................................................................... 425

IGMP Implementation Information.............................................................................................................................. 425

IGMP Protocol Overview..............................................................................................................................................425

IGMP Version 2........................................................................................................................................................425

IGMP Version 3........................................................................................................................................................ 427

Congure IGMP............................................................................................................................................................. 430

Related Conguration Tasks...................................................................................................................................430

Viewing IGMP Enabled Interfaces................................................................................................................................431

Selecting an IGMP Version............................................................................................................................................431

Viewing IGMP Groups....................................................................................................................................................431

Enabling IGMP Immediate-Leave.................................................................................................................................432

IGMP Snooping..............................................................................................................................................................432

IGMP Snooping Implementation Information....................................................................................................... 432

Conguring IGMP Snooping...................................................................................................................................432

Removing a Group-Port Association..................................................................................................................... 433

Disabling Multicast Flooding...................................................................................................................................434

Specifying a Port as Connected to a Multicast Router...................................................................................... 434

Conguring the Switch as Querier........................................................................................................................ 434

Fast Convergence after MSTP Topology Changes...................................................................................................435

Designating a Multicast Router Interface................................................................................................................... 435

22 Interfaces................................................................................................................................................ 436

Basic Interface Conguration.......................................................................................................................................436

Advanced Interface Conguration...............................................................................................................................436

Port Numbering..............................................................................................................................................................437

Interface Types...............................................................................................................................................................440

View Basic Interface Information.................................................................................................................................440

Resetting an Interface to its Factory Default State...................................................................................................446

Enabling a Physical Interface........................................................................................................................................447

Physical Interfaces.........................................................................................................................................................447

14

Contents

Port Pipes................................................................................................................................................................. 447

Setting the Speed of Ethernet Interfaces............................................................................................................ 447

Conguration Task List for Physical Interfaces.................................................................................................... 448

Overview of Layer Modes...................................................................................................................................... 448

Conguring Layer 2 (Data Link) Mode..................................................................................................................449

Conguring Layer 2 (Interface) Mode.................................................................................................................. 449

Conguring Layer 3 (Network) Mode...................................................................................................................450

Conguring Layer 3 (Interface) Mode.................................................................................................................. 450

Egress Interface Selection (EIS)...................................................................................................................................451

Important Points to Remember.............................................................................................................................. 451

Conguring EIS.........................................................................................................................................................451

Management Interfaces................................................................................................................................................452

Conguring a Dedicated Management Interface ................................................................................................452

Conguring a Management Interface on an Ethernet Port............................................................................... 453

Port Extender Interfaces.............................................................................................................................................. 454

VLAN Interfaces............................................................................................................................................................ 454

Loopback Interfaces......................................................................................................................................................455

Null Interfaces................................................................................................................................................................ 456

Port Channel Interfaces................................................................................................................................................456

Port Channel Denition and Standards.................................................................................................................456

Port Channel Benets.............................................................................................................................................456

Port Channel Implementation................................................................................................................................ 456

10/40 Gbps Interfaces in Port Channels...............................................................................................................457

Conguration Tasks for Port Channel Interfaces.................................................................................................457

Creating a Port Channel..........................................................................................................................................457

Adding a Physical Interface to a Port Channel.....................................................................................................458

Reassigning an Interface to a New Port Channel................................................................................................460

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 460

Adding or Removing a Port Channel from a VLAN.............................................................................................. 461

Assigning an IP Address to a Port Channel........................................................................................................... 461

Deleting or Disabling a Port Channel.....................................................................................................................462

Load Balancing Through Port Channels................................................................................................................462

Changing the Hash Algorithm................................................................................................................................462

Bulk Conguration......................................................................................................................................................... 463

Interface Range........................................................................................................................................................463

Bulk Conguration Examples..................................................................................................................................463

Dening Interface Range Macros................................................................................................................................ 465

Dene the Interface Range.................................................................................................................................... 465

Choosing an Interface-Range Macro.................................................................................................................... 465

Monitoring and Maintaining Interfaces....................................................................................................................... 466

Maintenance Using TDR......................................................................................................................................... 467

Displaying Trac Statistics on HiGig Ports.................................................................................................................467

Link Bundle Monitoring................................................................................................................................................. 468

Monitoring HiGig Link Bundles.....................................................................................................................................468

Guidelines for Monitoring HiGig Link-Bundles .....................................................................................................469

Contents

15

Enabling HiGig Link-Bundle Monitoring.................................................................................................................470

Non Dell-Qualied Transceivers................................................................................................................................... 470

Splitting QSFP Ports to SFP+ Ports............................................................................................................................ 471

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port.............................................................................471

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................473

Link Dampening..............................................................................................................................................................473

Important Points to Remember..............................................................................................................................473

Enabling Link Dampening........................................................................................................................................ 473

Using Ethernet Pause Frames for Flow Control........................................................................................................ 475

Threshold Settings...................................................................................................................................................476

Enabling Pause Frames........................................................................................................................................... 476

Congure the MTU Size on an Interface.................................................................................................................... 477

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 477

Set Auto-Negotiation Options................................................................................................................................478

Provisioning Combo Ports............................................................................................................................................ 478

View Advanced Interface Information.........................................................................................................................479

Conguring the Interface Sampling Size.............................................................................................................. 480

Conguring the Trac Sampling Size Globally........................................................................................................... 481

Dynamic Counters......................................................................................................................................................... 482

Clearing Interface Counters....................................................................................................................................483

23 Internet Protocol Security (IPSec)...........................................................................................................484

Conguring IPSec .........................................................................................................................................................484

24 IPv4 Routing............................................................................................................................................ 486

IP Addresses...................................................................................................................................................................486

Implementation Information....................................................................................................................................486

Conguration Tasks for IP Addresses..........................................................................................................................487

Assigning IP Addresses to an Interface....................................................................................................................... 487

Conguring Static Routes.............................................................................................................................................488

Congure Static Routes for the Management Interface..........................................................................................489

Enabling Directed Broadcast........................................................................................................................................ 489

Resolution of Host Names............................................................................................................................................490

Enabling Dynamic Resolution of Host Names............................................................................................................490

Specifying the Local System Domain and a List of Domains................................................................................... 490

Conguring DNS with Traceroute................................................................................................................................ 491

ARP..................................................................................................................................................................................492

Conguration Tasks for ARP.................................................................................................................................. 492

Conguring Static ARP Entries..............................................................................................................................492

Conguring ARP Inspection Trust......................................................................................................................... 493

Conguring ARP Timeout.......................................................................................................................................493

Enabling Proxy ARP.................................................................................................................................................494

Clearing ARP Cache................................................................................................................................................494

ARP Learning via Gratuitous ARP..........................................................................................................................494

Enabling ARP Learning via Gratuitous ARP..........................................................................................................495

ARP Learning via ARP Request............................................................................................................................. 495

16

Contents

Conguring ARP Retries.........................................................................................................................................496

ICMP............................................................................................................................................................................... 496

Conguration Tasks for ICMP................................................................................................................................496

Enabling ICMP Unreachable Messages................................................................................................................ 496

ICMP Redirects.............................................................................................................................................................. 497

25 IPv6 Routing............................................................................................................................................499

Protocol Overview.........................................................................................................................................................499

Extended Address Space........................................................................................................................................499

Stateless Autoconguration................................................................................................................................... 499

IPv6 Headers............................................................................................................................................................500

IPv6 Header Fields................................................................................................................................................... 501

Extension Header Fields......................................................................................................................................... 503

IPv6 Addressing.......................................................................................................................................................504

IPv6 Implementation on the Dell Networking OS......................................................................................................505

Conguring the LPM Table for IPv6 Extended Prexes...........................................................................................506

ICMPv6...........................................................................................................................................................................506

Path MTU Discovery..................................................................................................................................................... 507

IPv6 Neighbor Discovery.............................................................................................................................................. 507

IPv6 Neighbor Discovery of MTU Packets.......................................................................................................... 508

Conguring the IPv6 Recursive DNS Server....................................................................................................... 508

Secure Shell (SSH) Over an IPv6 Transport...............................................................................................................510

Conguration Tasks for IPv6.........................................................................................................................................510

Adjusting Your CAM Prole..................................................................................................................................... 510

Assigning an IPv6 Address to an Interface.............................................................................................................511

Assigning a Static IPv6 Route.................................................................................................................................512

Conguring Telnet with IPv6...................................................................................................................................512

SNMP over IPv6.......................................................................................................................................................512

Displaying IPv6 Information.....................................................................................................................................513

Displaying an IPv6 Conguration............................................................................................................................513

Displaying IPv6 Routes.............................................................................................................................................514

Displaying the Running Conguration for an Interface........................................................................................ 515

Clearing IPv6 Routes................................................................................................................................................516

Disabling ND Entry Timeout....................................................................................................................................516

Conguring IPv6 RA Guard...........................................................................................................................................516

Conguring IPv6 RA Guard on an Interface..........................................................................................................518

Monitoring IPv6 RA Guard...................................................................................................................................... 519

26 Intermediate System to Intermediate System.......................................................................................... 520

IS-IS Protocol Overview............................................................................................................................................... 520

IS-IS Addressing.............................................................................................................................................................520

Multi-Topology IS-IS....................................................................................................................................................... 521

Transition Mode........................................................................................................................................................ 521

Interface Support.....................................................................................................................................................522

Adjacencies...............................................................................................................................................................522

Graceful Restart.............................................................................................................................................................522

Contents

17

Timers........................................................................................................................................................................522

Implementation Information..........................................................................................................................................522

Conguration Information.............................................................................................................................................523

Conguration Tasks for IS-IS..................................................................................................................................524

Conguring the Distance of a Route......................................................................................................................531

Changing the IS-Type.............................................................................................................................................. 532

Redistributing IPv4 Routes.....................................................................................................................................534

Redistributing IPv6 Routes.....................................................................................................................................535

Conguring Authentication Passwords.................................................................................................................536

Setting the Overload Bit......................................................................................................................................... 536

Debugging IS-IS....................................................................................................................................................... 537

IS-IS Metric Styles.........................................................................................................................................................538

Congure Metric Values............................................................................................................................................... 538

Maximum Values in the Routing Table.................................................................................................................. 539

Change the IS-IS Metric Style in One Level Only................................................................................................539

Leaks from One Level to Another..........................................................................................................................540

Sample Congurations...................................................................................................................................................541

27 iSCSI Optimization...................................................................................................................................544

iSCSI Optimization Overview....................................................................................................................................... 544

Default iSCSI Optimization Values...............................................................................................................................546

iSCSI Optimization Prerequisites................................................................................................................................. 547

Conguring iSCSI Optimization....................................................................................................................................547

Displaying iSCSI Optimization Information................................................................................................................. 549

Enable and Disable iSCSI Optimization.......................................................................................................................550

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer........................................................................551

Monitoring iSCSI Trac Flows......................................................................................................................................551

Information Monitored in iSCSI Trac Flows..............................................................................................................551

Detection and Auto-Conguration for Dell EqualLogic Arrays.................................................................................552

Conguring Detection and Ports for Dell Compellent Arrays...................................................................................552

Application of Quality of Service to iSCSI Trac Flows........................................................................................... 553

28 Link Aggregation Control Protocol (LACP).............................................................................................. 554

Introduction to Dynamic LAGs and LACP.................................................................................................................. 554

Important Points to Remember............................................................................................................................. 554

LACP Modes............................................................................................................................................................555

Conguring LACP Commands...............................................................................................................................555

LACP Conguration Tasks............................................................................................................................................556

Creating a LAG........................................................................................................................................................ 556

Conguring the LAG Interfaces as Dynamic........................................................................................................556

Setting the LACP Long Timeout............................................................................................................................557

Monitoring and Debugging LACP.......................................................................................................................... 557

Shared LAG State Tracking.......................................................................................................................................... 558

Conguring Shared LAG State Tracking...............................................................................................................558

Important Points about Shared LAG State Tracking...........................................................................................560

LACP Basic Conguration Example............................................................................................................................ 560

18

Contents

Congure a LAG on ALPHA...................................................................................................................................560

29 Layer 2.................................................................................................................................................... 568

Manage the MAC Address Table................................................................................................................................. 568

Clearing the MAC Address Table........................................................................................................................... 568

Setting the Aging Time for Dynamic Entries........................................................................................................568

Conguring a Static MAC Address........................................................................................................................569

Displaying the MAC Address Table........................................................................................................................569

MAC Learning Limit.......................................................................................................................................................569

Setting the MAC Learning Limit.............................................................................................................................570

mac learning-limit Dynamic.....................................................................................................................................570

mac learning-limit mac-address-sticky................................................................................................................. 570

mac learning-limit station-move............................................................................................................................. 571

mac learning-limit no-station-move....................................................................................................................... 571

Learning Limit Violation Actions..............................................................................................................................571

Setting Station Move Violation Actions................................................................................................................. 571

Recovering from Learning Limit and Station Move Violations........................................................................... 572

Disabling MAC Address Learning on the System.................................................................................................572

Enabling port security..............................................................................................................................................573

NIC Teaming................................................................................................................................................................... 573

Congure Redundant Pairs...........................................................................................................................................574

Important Points about Conguring Redundant Pairs........................................................................................ 576

Far-End Failure Detection............................................................................................................................................. 577

FEFD State Changes...............................................................................................................................................578

Conguring FEFD.................................................................................................................................................... 579

Enabling FEFD on an Interface...............................................................................................................................579

Debugging FEFD......................................................................................................................................................580

30 Link Layer Discovery Protocol (LLDP)..................................................................................................... 582

802.1AB (LLDP) Overview............................................................................................................................................582

Protocol Data Units................................................................................................................................................. 582

Optional TLVs................................................................................................................................................................. 583

Management TLVs.................................................................................................................................................. 583

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 585

TIA Organizationally Specic TLVs........................................................................................................................585

Congure LLDP............................................................................................................................................................. 589

Related Conguration Tasks...................................................................................................................................589

Important Points to Remember............................................................................................................................. 589

LLDP Compatibility..................................................................................................................................................590

CONFIGURATION versus INTERFACE Congurations............................................................................................590

Enabling LLDP.................................................................................................................................................................591

Disabling and Undoing LLDP...................................................................................................................................591

Enabling LLDP on Management Ports.........................................................................................................................591

Disabling and Undoing LLDP on Management Ports...........................................................................................591

Advertising TLVs............................................................................................................................................................ 592

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................593

Contents

19

Reserved Unrecognized LLDP TLVs..................................................................................................................... 593

Organizational Specic Unrecognized LLDP TLVs..............................................................................................593

Viewing Unrecognized LLDP TLVs........................................................................................................................ 594

Viewing the LLDP Conguration................................................................................................................................. 594

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................594

Examples of Viewing Information Advertised by Neighbors.............................................................................. 595

Conguring LLDPDU Intervals.....................................................................................................................................596

Conguring LLDP Notication Interval....................................................................................................................... 597

Conguring Transmit and Receive Mode....................................................................................................................597

Conguring a Time to Live........................................................................................................................................... 598

Debugging LLDP............................................................................................................................................................599

Relevant Management Objects................................................................................................................................... 600

31 Multicast Source Discovery Protocol (MSDP)..........................................................................................605

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

Anycast RP.....................................................................................................................................................................606

Implementation Information..........................................................................................................................................607

Congure Multicast Source Discovery Protocol........................................................................................................ 607

Related Conguration Tasks................................................................................................................................... 607

Enable MSDP...................................................................................................................................................................611

Manage the Source-Active Cache...............................................................................................................................612

Viewing the Source-Active Cache......................................................................................................................... 612

Limiting the Source-Active Cache..........................................................................................................................612

Clearing the Source-Active Cache.........................................................................................................................613

Enabling the Rejected Source-Active Cache........................................................................................................613

Accept Source-Active Messages that Fail the RFP Check...................................................................................... 613

Specifying Source-Active Messages............................................................................................................................617

Limiting the Source-Active Messages from a Peer....................................................................................................618

Preventing MSDP from Caching a Local Source........................................................................................................618

Preventing MSDP from Caching a Remote Source...................................................................................................619

Preventing MSDP from Advertising a Local Source.................................................................................................. 619

Logging Changes in Peership States...........................................................................................................................620

Terminating a Peership..................................................................................................................................................620

Clearing Peer Statistics..................................................................................................................................................621

Debugging MSDP...........................................................................................................................................................621

MSDP with Anycast RP................................................................................................................................................622

Conguring Anycast RP................................................................................................................................................623

Reducing Source-Active Message Flooding.........................................................................................................624

Specifying the RP Address Used in SA Messages.............................................................................................. 624

MSDP Sample Congurations......................................................................................................................................626

32 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 631

Protocol Overview..........................................................................................................................................................631

Spanning Tree Variations...............................................................................................................................................632

Implementation Information....................................................................................................................................632

Congure Multiple Spanning Tree Protocol................................................................................................................632

20

Contents

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