Dell C9010 Modular Chassis Switch Owner's manual

Dell EMC Networking Conguration Guide for the

C9010 Series

Version 9.14.1.5

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 - 05

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............................................................................................................................... 59

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

Conguring Privilege Levels........................................................................................................................................... 60

Contents

3

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

Removing a Command from EXEC Mode.............................................................................................................. 60

Moving a Command from EXEC Privilege Mode to EXEC Mode....................................................................... 60

Allowing Access to CONFIGURATION Mode Commands.....................................................................................61

Allowing Access to the Following Modes................................................................................................................ 61

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

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

Conguring Logging........................................................................................................................................................ 63

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

Conguring Logging Format ...................................................................................................................................65

Setting Up a Secure Connection to a Syslog Server............................................................................................ 65

Track Login Activity..........................................................................................................................................................67

Restrictions for Tracking Login Activity...................................................................................................................67

Conguring Login Activity Tracking......................................................................................................................... 67

Display Login Statistics.............................................................................................................................................. 67

Limit Concurrent Login Sessions....................................................................................................................................69

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 69

Conguring Concurrent Session Limit.....................................................................................................................69

Enabling the System to Clear Existing Sessions.................................................................................................... 70

Enabling Secured CLI Mode........................................................................................................................................... 70

Log Messages in the Internal Buer...............................................................................................................................71

Conguration Task List for System Log Management...........................................................................................71

Disabling System Logging................................................................................................................................................ 71

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

Conguring a UNIX System as a Syslog Server.....................................................................................................72

Display the Logging Buer and the Logging Conguration........................................................................................ 72

Changing System Logging Settings...............................................................................................................................73

Conguring a UNIX Logging Facility Level....................................................................................................................73

Synchronizing Log Messages......................................................................................................................................... 74

Enabling Timestamp on Syslog Messages....................................................................................................................75

File Transfer Services.......................................................................................................................................................76

Conguration Task List for File Transfer Services..................................................................................................76

Enabling the FTP Server........................................................................................................................................... 77

Conguring FTP Server Parameters........................................................................................................................77

Conguring FTP Client Parameters......................................................................................................................... 77

Terminal Lines................................................................................................................................................................... 78

Denying and Permitting Access to a Terminal Line................................................................................................ 78

Conguring Login Authentication for Terminal Lines.............................................................................................79

Setting Time Out of EXEC Privilege Mode...................................................................................................................79

Using Telnet to Access Another Network Device........................................................................................................80

Lock CONFIGURATION Mode........................................................................................................................................81

Viewing the Conguration Lock Status................................................................................................................... 81

LPC Bus Quality Degradation..........................................................................................................................................81

LBQA (LPC Bus Quality Analyzer) Failure Detection mode..................................................................................82

Recovering from a Forgotten Password ...................................................................................................................... 83

4

Contents

Ignoring the Startup Conguration and Booting from the Factory-Default Conguration.....................................83

Recovering from a Failed Start.......................................................................................................................................84

Restoring Factory-Default Settings...............................................................................................................................84

Important Point to Remember................................................................................................................................. 84

Restoring Factory-Default Boot Environment Variables....................................................................................... 85

Using Hashes to Verify Software Images Before Installation..................................................................................... 86

Verifying System Images on C9010 Components........................................................................................................87

When System Images on C9010 Components Do Not Match.............................................................................88

Manually Resetting the System Image on a C9010 Component......................................................................... 88

Logging in to the Virtual Console of a C9010 Component................................................................................... 89

Booting the C9010 from an Image on a Network Server..................................................................................... 89

Conguring C9010 Components to Boot from the RPM CP Image................................................................... 89

Viewing the Reason for Last System Reboot.............................................................................................................. 90

5 802.1X.......................................................................................................................................................... 91

The Port-Authentication Process.................................................................................................................................. 93

EAP over RADIUS......................................................................................................................................................94

Conguring 802.1X...........................................................................................................................................................95

Related Conguration Tasks..................................................................................................................................... 95

Important Points to Remember......................................................................................................................................95

Enabling 802.1X................................................................................................................................................................ 96

Conguring dot1x Prole ................................................................................................................................................98

Conguring MAC addresses for a do1x Prole.............................................................................................................98

Conguring the Static MAB and MAB Prole .............................................................................................................99

Conguring Critical VLAN ............................................................................................................................................ 100

Conguring Request Identity Re-Transmissions......................................................................................................... 100

Conguring a Quiet Period after a Failed Authentication...........................................................................................101

Forcibly Authorizing or Unauthorizing a Port..............................................................................................................102

Re-Authenticating a Port...............................................................................................................................................103

Conguring Dynamic VLAN Assignment with Port Authentication......................................................................... 103

Guest and Authentication-Fail VLANs.........................................................................................................................104

Conguring a Guest VLAN......................................................................................................................................105

Conguring an Authentication-Fail VLAN............................................................................................................. 106

Conguring Timeouts...............................................................................................................................................107

Multi-Host Authentication.............................................................................................................................................108

Conguring Multi-Host AuthenticationConguring Single-Host Authentication............................................. 109

Multi-Supplicant Authentication....................................................................................................................................110

Conguring Multi-Supplicant AuthenticationRestricting Multi-Supplicant Authentication.............................. 111

MAC Authentication Bypass..........................................................................................................................................112

MAB in Single-host and Multi-Host Mode.............................................................................................................112

MAB in Multi-Supplicant Authentication Mode.....................................................................................................113

Conguring MAC Authentication Bypass...............................................................................................................113

Dynamic CoS with 802.1X.............................................................................................................................................. 114

6 Access Control Lists (ACLs)........................................................................................................................116

IP Access Control Lists (ACLs)......................................................................................................................................116

Contents

5

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

User-Congurable CAM Allocation......................................................................................................................... 118

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

Allocating CAM for Egress ACLs on the Port Extender...................................................................................... 120

Implementing ACLs on Dell EMC Networking OS.................................................................................................121

ACL Optimization to Increase Number of Supported IPv4 ACLs.............................................................................122

Restrictions for ACL Optimization..........................................................................................................................122

Optimizing ACL for More Number of IPv4 ACL Rules.........................................................................................123

IP Fragment Handling.....................................................................................................................................................123

IP Fragments ACL Examples...................................................................................................................................123

Layer 4 ACL Rules Examples...................................................................................................................................124

Congure a Standard IP ACL........................................................................................................................................125

Conguring a Standard IP ACL Filter..................................................................................................................... 126

Congure an Extended IP ACL..................................................................................................................................... 127

Conguring Filters with a Sequence Number....................................................................................................... 127

Conguring Filters Without a Sequence Number.................................................................................................128

Congure Layer 2 and Layer 3 ACLs............................................................................................................................129

Using ACL VLAN Groups...............................................................................................................................................129

Guidelines for Conguring ACL VLAN Groups..................................................................................................... 129

Conguring an ACL VLAN Group...........................................................................................................................130

Allocating ACL VLAN CAM...................................................................................................................................... 131

Applying an IP ACL..........................................................................................................................................................131

Applying Ingress ACLs on the Port Extender........................................................................................................132

Applying Egress ACLs.............................................................................................................................................. 133

Applying Layer 3 Egress ACLs on Control-Plane Trac...................................................................................... 133

Counting ACL Hits....................................................................................................................................................134

IP Prex Lists.................................................................................................................................................................. 134

Implementation Information.................................................................................................................................... 134

Conguration Task List for Prex Lists.................................................................................................................. 135

ACL Remarks.................................................................................................................................................................. 138

Conguring a Remark.............................................................................................................................................. 138

Deleting a Remark.................................................................................................................................................... 139

ACL Resequencing......................................................................................................................................................... 139

Resequencing an ACL or Prex List.......................................................................................................................140

Route Maps......................................................................................................................................................................141

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

Important Points to Remember..................................................................................................................................... 141

Conguration Task List for Route Maps................................................................................................................ 142

Conguring Match Routes...................................................................................................................................... 144

Conguring Set Conditions..................................................................................................................................... 145

Congure a Route Map for Route Redistribution.................................................................................................146

Congure a Route Map for Route Tagging............................................................................................................147

Continue Clause........................................................................................................................................................147

Conguring a UDF ACL..................................................................................................................................................147

Hot-Lock Behavior......................................................................................................................................................... 149

6

Contents

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 150

How BFD Works............................................................................................................................................................. 150

BFD Packet Format.................................................................................................................................................. 151

BFD Sessions............................................................................................................................................................ 152

BFD Three-Way Handshake.................................................................................................................................... 153

Session State Changes............................................................................................................................................155

Important Points to Remember.................................................................................................................................... 155

Congure BFD................................................................................................................................................................ 155

Congure BFD for Physical Ports...........................................................................................................................156

Congure BFD for Static Routes............................................................................................................................157

Congure BFD for IPv6 Static Routes...................................................................................................................160

Congure BFD for OSPF.........................................................................................................................................162

Congure BFD for OSPFv3.....................................................................................................................................166

Congure BFD for IS-IS...........................................................................................................................................169

Congure BFD for BGP............................................................................................................................................171

Congure BFD for VRRP......................................................................................................................................... 177

Conguring Protocol Liveness................................................................................................................................ 180

8 Border Gateway Protocol IPv4 (BGPv4)..................................................................................................... 181

Autonomous Systems (AS)............................................................................................................................................181

Sessions and Peers.........................................................................................................................................................183

Establish a Session................................................................................................................................................... 183

Route Reectors.............................................................................................................................................................184

Communities............................................................................................................................................................. 185

BGP Attributes................................................................................................................................................................185

Best Path Selection Criteria....................................................................................................................................185

Weight........................................................................................................................................................................187

Local Preference....................................................................................................................................................... 187

Multi-Exit Discriminators (MEDs)...........................................................................................................................188

Origin..........................................................................................................................................................................189

AS Path......................................................................................................................................................................189

Next Hop................................................................................................................................................................... 190

Multiprotocol BGP..........................................................................................................................................................190

Implement BGP ............................................................................................................................................................. 190

Additional Path (Add-Path) Support......................................................................................................................190

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................191

Ignore Router-ID for Some Best-Path Calculations.............................................................................................. 191

Four-Byte AS Numbers............................................................................................................................................ 191

AS4 Number Representation.................................................................................................................................. 192

AS Number Migration.............................................................................................................................................. 193

BGP4 Management Information Base (MIB)........................................................................................................195

Important Points to Remember.............................................................................................................................. 195

Conguration Information..............................................................................................................................................196

BGP Conguration......................................................................................................................................................... 196

Enabling BGP............................................................................................................................................................ 197

Contents

7

Conguring AS4 Number Representations.......................................................................................................... 200

Conguring Peer Groups.........................................................................................................................................201

Conguring BGP Fast Fail-Over............................................................................................................................ 204

Conguring Passive Peering...................................................................................................................................205

Maintaining Existing AS Numbers During an AS Migration................................................................................ 206

Allowing an AS Number to Appear in its Own AS Path.......................................................................................207

Filtering on an AS-Path Attribute.......................................................................................................................... 208

Regular Expressions as Filters................................................................................................................................209

Redistributing Routes...............................................................................................................................................210

Enabling Additional Paths......................................................................................................................................... 211

Conguring IP Community Lists..............................................................................................................................211

Conguring an IP Extended Community List........................................................................................................ 212

Filtering Routes with Community Lists..................................................................................................................213

Manipulating the COMMUNITY Attribute.............................................................................................................214

Changing MED Attributes....................................................................................................................................... 215

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 216

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 216

Changing the WEIGHT Attribute............................................................................................................................217

Enabling Multipath....................................................................................................................................................217

Filtering BGP Routes................................................................................................................................................218

Filtering BGP Routes Using Route Maps...............................................................................................................219

Filtering BGP Routes Using AS-PATH Information..............................................................................................220

Conguring BGP Route Reectors........................................................................................................................220

Aggregating Routes..................................................................................................................................................221

Conguring BGP Confederations........................................................................................................................... 221

Enabling Route Flap Dampening............................................................................................................................ 222

Changing BGP Timers.............................................................................................................................................224

Setting the extended timer.................................................................................................................................... 225

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................225

Enabling or disabling BGP neighbors.....................................................................................................................226

Route Map Continue............................................................................................................................................... 227

Enabling MBGP Congurations................................................................................................................................... 228

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 229

BGP Regular Expression Optimization........................................................................................................................229

Debugging BGP............................................................................................................................................................. 229

Storing Last and Bad PDUs....................................................................................................................................230

Capturing PDUs........................................................................................................................................................231

PDU Counters.......................................................................................................................................................... 232

Sample Congurations.................................................................................................................................................. 232

9 Content Addressable Memory (CAM).........................................................................................................241

CAM Allocation............................................................................................................................................................... 241

Test CAM Usage............................................................................................................................................................ 243

View CAM-ACL Settings.............................................................................................................................................. 243

View CAM Usage...........................................................................................................................................................244

Conguring CAM Threshold and Silence Period........................................................................................................244

8

Contents

Setting CAM Threshold and Silence Period......................................................................................................... 245

Return to the Default CAM Conguration..................................................................................................................246

CAM Optimization......................................................................................................................................................... 246

Applications for CAM Proling..................................................................................................................................... 246

LAG HashingLAG Hashing Based on Bidirectional Flow..................................................................................... 246

Unied Forwarding Table (UFT) Modes......................................................................................................................247

Conguring UFT Modes..........................................................................................................................................247

10 Control Plane Policing (CoPP)................................................................................................................. 249

CoPP Implementation................................................................................................................................................... 249

Protocol-based Control Plane Policing..................................................................................................................249

Queue-based Control Plane Policing.....................................................................................................................249

CoPP Example................................................................................................................................................................ 251

Congure Control Plane Policing................................................................................................................................. 252

Conguring CoPP for Protocols............................................................................................................................ 252

Examples of Conguring CoPP for Protocols...................................................................................................... 253

Conguring CoPP for CPU Queues...................................................................................................................... 254

Examples of Conguring CoPP for CPU Queues................................................................................................255

Displaying CoPP Conguration.............................................................................................................................. 256

Troubleshooting CoPP Operation................................................................................................................................ 259

Enabling CPU Trac Statistics.............................................................................................................................. 259

Viewing CPU Trac Statistics............................................................................................................................... 259

Troubleshooting CPU Packet Loss........................................................................................................................ 260

Viewing Per-Protocol CoPP Counters...................................................................................................................261

Viewing Per-Queue CoPP Counters..................................................................................................................... 264

11 Data Center Bridging (DCB)..................................................................................................................... 265

Enabling Data Center Bridging.....................................................................................................................................265

Ethernet Enhancements in Data Center Bridging..................................................................................................... 266

Priority-Based Flow Control....................................................................................................................................267

Enhanced Transmission Selection..........................................................................................................................268

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................269

Data Center Bridging in a Trac Flow.................................................................................................................. 269

QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 270

SNMP Support for PFC and Buer Statistics Tracking............................................................................................270

DCB Maps and its Attributes.........................................................................................................................................271

DCB Map: Conguration Procedure.......................................................................................................................271

Important Points to Remember..............................................................................................................................272

Applying a DCB Map on a Port.............................................................................................................................. 272

Conguring PFC without a DCB Map...................................................................................................................273

Conguring Lossless Queues..................................................................................................................................273

Applying a DCB Map on a Line Card..................................................................................................................... 275

Data Center Bridging: Default Conguration..............................................................................................................275

Conguration Notes: PFC and ETS in a DCB Map....................................................................................................276

PFC Conguration Notes........................................................................................................................................276

ETS Conguration Notes........................................................................................................................................ 277

Contents

9

ETS Prerequisites and Restrictions........................................................................................................................277

Priority-Group Conguration Notes.......................................................................................................................278

Conguring Priority-Based Flow Control.................................................................................................................... 278

Conguring Lossless Queues..................................................................................................................................279

Conguring Enhanced Transmission Selection...........................................................................................................279

Creating an ETS Priority Group............................................................................................................................. 280

ETS Operation with DCBx.......................................................................................................................................281

Congure a DCBx Operation.........................................................................................................................................281

DCBx Operation........................................................................................................................................................281

DCBx Port Roles...................................................................................................................................................... 282

DCB Conguration Exchange.................................................................................................................................283

Conguration Source Election................................................................................................................................283

Propagation of DCB Information............................................................................................................................284

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 284

Behavior of Tagged Packets...................................................................................................................................285

Conguration Example for DSCP and PFC Priorities..........................................................................................285

DCBx Example......................................................................................................................................................... 286

DCBx Prerequisites and Restrictions.....................................................................................................................287

Conguring DCBx.................................................................................................................................................... 287

Verifying the DCB Conguration................................................................................................................................. 290

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................300

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

Using PFC and ETS to Manage Data Center Trac..................................................................................................301

PFC and ETS Conguration Command Examples...............................................................................................302

Using PFC and ETS to Manage Converged Ethernet Trac.............................................................................302

Hierarchical Scheduling in ETS Output Policies................................................................................................... 303

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................303

Pause and Resume of Trac..................................................................................................................................303

Buer Sizes for Lossless or PFC Packets............................................................................................................ 304

Conguring the Dynamic Buer Method................................................................................................................... 304

12 Debugging and Diagnostics...................................................................................................................... 306

Oine Diagnostics.........................................................................................................................................................306

Running Port Extender Oine Diagnostics on the Switch.................................................................................306

Running Oine Diagnostics on a Standalone Switch.......................................................................................... 313

TRACE Logs................................................................................................................................................................... 333

Auto Save on Reload, Crash, or Rollover.............................................................................................................. 334

Uploading Trace Logs.............................................................................................................................................. 334

Last Restart Reason......................................................................................................................................................334

show hardware Commands..........................................................................................................................................335

Environmental Monitoring.............................................................................................................................................337

Displaying Port Extender Environment Information ............................................................................................337

Display Power Supply Status.................................................................................................................................. 337

Display Fan Status................................................................................................................................................... 338

Display Transceiver Type......................................................................................................................................... 338

Recognize an Over-Temperature Condition..........................................................................................................340

10

Contents

Troubleshoot an Over-Temperature Condition...................................................................................................... 341

Troubleshooting Packet Loss........................................................................................................................................343

Displaying Drop Counters........................................................................................................................................343

Displaying Dataplane Statistics...............................................................................................................................344

Displaying Line-Card Counters...............................................................................................................................346

Accessing Application Core Dumps.............................................................................................................................346

Mini Core Dumps............................................................................................................................................................347

Full Kernel Core Dumps.................................................................................................................................................348

Enabling TCP Dumps.....................................................................................................................................................348

Accessing Port Extender Core and Mini Core Dumps.............................................................................................. 349

13 Dynamic Host Conguration Protocol (DHCP).........................................................................................350

DHCP Packet Format and Options............................................................................................................................. 350

Assign an IP Address using DHCP...............................................................................................................................352

Implementation Information..........................................................................................................................................353

Congure the System to be a DHCP Server............................................................................................................. 353

Conguring the Server for Automatic Address Allocation..................................................................................354

Specifying a Default Gateway................................................................................................................................355

Congure a Method of Hostname Resolution..................................................................................................... 356

Using DNS for Address Resolution........................................................................................................................356

Using NetBIOS WINS for Address Resolution..................................................................................................... 356

Creating Manual Binding Entries............................................................................................................................356

Debugging the DHCP Server................................................................................................................................. 357

Using DHCP Clear Commands...............................................................................................................................357

Congure the System to be a Relay Agent................................................................................................................ 357

Congure the System to be a DHCP Client...............................................................................................................359

DHCP Client on a Management Interface............................................................................................................359

DHCP Client Operation with Other Features.......................................................................................................359

DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................360

Conguring Route Leaking between VRFs on DHCP Relay Agent....................................................................361

Non-default VRF conguration for DHCPv6 helper address...................................................................................362

Conguring DHCP relay source interface...................................................................................................................362

Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 362

Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................363

Congure Secure DHCP...............................................................................................................................................364

Option 82..................................................................................................................................................................364

DHCPv6 relay agent options..................................................................................................................................365

DHCP Snooping.......................................................................................................................................................365

Drop DHCP Packets on Snooped VLANs Only....................................................................................................367

Dynamic ARP Inspection........................................................................................................................................ 368

Conguring Dynamic ARP Inspection................................................................................................................... 369

Source Address Validation.............................................................................................................................................370

Enabling IP Source Address Validation.................................................................................................................. 370

DHCP MAC Source Address Validation................................................................................................................. 371

Enabling IP+MAC Source Address Validation........................................................................................................371

Viewing the Number of SAV Dropped Packets....................................................................................................372

Contents

11

Clearing the Number of SAV Dropped Packets................................................................................................... 372

14 Equal Cost Multi-Path (ECMP)................................................................................................................ 373

ECMP for Flow-Based Anity..................................................................................................................................... 373

Enabling Deterministic ECMP Next Hop...............................................................................................................373

Conguring the Hash Algorithm Seed...................................................................................................................373

Link Bundle Monitoring............................................................................................................................................374

Managing ECMP Group Paths..................................................................................................................................... 374

Creating an ECMP Group Bundle................................................................................................................................ 375

Modifying the ECMP Group Threshold.......................................................................................................................375

BGP Multipath Operation with Link Bankwidth......................................................................................................... 376

Dynamic Re-calculation of Link Bankwidth.................................................................................................................377

Weighted ECMP for Static Routes..............................................................................................................................378

ECMP Support in L3 Host and LPM Tables............................................................................................................... 378

15 FCoE Transit.............................................................................................................................................379

Fibre Channel over Ethernet........................................................................................................................................ 379

Ensure Robustness in a Converged Ethernet Network............................................................................................ 379

FIP Snooping on Ethernet Bridges...............................................................................................................................381

FIP Snooping in a Switch Stack...................................................................................................................................383

Using FIP Snooping....................................................................................................................................................... 383

FIP Snooping Prerequisites.....................................................................................................................................383

Important Points to Remember............................................................................................................................. 383

Enabling the FCoE Transit Feature........................................................................................................................384

Enable FIP Snooping on VLANs.............................................................................................................................384

Congure the FC-MAP Value................................................................................................................................ 384

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................385

Congure a Port for a Bridge-to-FCF Link...........................................................................................................385

Impact on Other Software Features..................................................................................................................... 385

FIP Snooping Restrictions...................................................................................................................................... 385

Conguring FIP Snooping.............................................................................................................................................386

Displaying FIP Snooping Information........................................................................................................................... 387

FCoE Transit Conguration Example...........................................................................................................................392

16 FIPS Cryptography...................................................................................................................................394

Conguration Tasks....................................................................................................................................................... 394

Preparing the System....................................................................................................................................................394

Enabling FIPS Mode......................................................................................................................................................395

Generating Host-Keys...................................................................................................................................................395

Monitoring FIPS Mode Status..................................................................................................................................... 395

Disabling FIPS Mode..................................................................................................................................................... 396

17 Flex Hash and Optimized Boot-Up............................................................................................................ 397

Flex Hash Capability Overview.....................................................................................................................................397

Conguring the Flex Hash Mechanism....................................................................................................................... 397

LACP Fast Switchover..................................................................................................................................................398

12

Contents

Conguring LACP Fast Switchover............................................................................................................................ 398

LACP............................................................................................................................................................................... 398

LACP Fast Switchover............................................................................................................................................398

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 398

Sample Congurations..................................................................................................................................................400

................................................................................................................................................................................... 400

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 403

18 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 404

Protocol Overview.........................................................................................................................................................404

Ring Status...............................................................................................................................................................405

Multiple FRRP Rings............................................................................................................................................... 405

Important FRRP Points...........................................................................................................................................406

Implementing FRRP................................................................................................................................................ 406

Important FRRP Concepts.....................................................................................................................................406

FRRP Conguration.......................................................................................................................................................407

Creating the FRRP Group...................................................................................................................................... 408

Conguring the Control VLAN...............................................................................................................................408

Conguring and Adding the Member VLANs...................................................................................................... 409

Setting the FRRP Timers........................................................................................................................................ 410

Clearing the FRRP Counters...................................................................................................................................410

Viewing the FRRP Conguration............................................................................................................................ 411

Viewing the FRRP Information................................................................................................................................ 411

Troubleshooting FRRP.................................................................................................................................................... 411

Conguration Checks............................................................................................................................................... 411

Sample Conguration and Topology............................................................................................................................. 411

FRRP Support on VLT................................................................................................................................................... 413

Example Scenario..................................................................................................................................................... 413

Important Points to Remember.............................................................................................................................. 415

19 GARP VLAN Registration Protocol (GVRP).............................................................................................. 416

Important Points to Remember.................................................................................................................................... 416

Congure GVRP............................................................................................................................................................. 417

Related Conguration Tasks....................................................................................................................................417

Enabling GVRP Globally.................................................................................................................................................418

Enabling GVRP on a Layer 2 Interface.........................................................................................................................418

Congure GVRP Registration....................................................................................................................................... 418

Congure a GARP Timer............................................................................................................................................... 419

20 High Availability (HA)...............................................................................................................................420

High Availability on Chassis.......................................................................................................................................... 420

High Availability in a PE Stack......................................................................................................................................420

Online Insertion and Removal.......................................................................................................................................420

RPM Online Insertion............................................................................................................................................... 421

Line Card Online Insertion........................................................................................................................................421

Pre-conguring a Slot for a Line-Card Type..........................................................................................................421

Contents

13

Replacing a Line Card..............................................................................................................................................422

Hitless Behavior............................................................................................................................................................. 422

Graceful Restart.............................................................................................................................................................423

Software Resiliency....................................................................................................................................................... 423

System Health Monitoring......................................................................................................................................423

Failure and Event Logging.......................................................................................................................................423

Trace Log.................................................................................................................................................................. 423

Core Dumps..............................................................................................................................................................423

System Log...............................................................................................................................................................424

Control Plane Redundancy........................................................................................................................................... 424

Control-Plane Failover.............................................................................................................................................424

RPM Synchronization..............................................................................................................................................425

Forcing an RPM Failover.........................................................................................................................................425

Specifying an Auto-Failover Limit..........................................................................................................................426

Disabling Auto-Reboot............................................................................................................................................ 426

21 Internet Group Management Protocol (IGMP)..........................................................................................427

IGMP Implementation Information...............................................................................................................................427

IGMP Protocol Overview.............................................................................................................................................. 427

IGMP Version 2........................................................................................................................................................ 427

IGMP Version 3........................................................................................................................................................429

Congure IGMP............................................................................................................................................................. 432

Related Conguration Tasks................................................................................................................................... 432

Viewing IGMP Enabled Interfaces............................................................................................................................... 433

Selecting an IGMP Version........................................................................................................................................... 433

Viewing IGMP Groups...................................................................................................................................................433

Enabling IGMP Immediate-Leave.................................................................................................................................434

IGMP Snooping..............................................................................................................................................................434

IGMP Snooping Implementation Information....................................................................................................... 434

Conguring IGMP Snooping...................................................................................................................................434

Removing a Group-Port Association.....................................................................................................................435

Disabling Multicast Flooding...................................................................................................................................436

Specifying a Port as Connected to a Multicast Router...................................................................................... 436

Conguring the Switch as Querier........................................................................................................................ 436

Fast Convergence after MSTP Topology Changes................................................................................................... 437

Designating a Multicast Router Interface................................................................................................................... 437

22 Interfaces................................................................................................................................................ 438

Basic Interface Conguration.......................................................................................................................................438

Advanced Interface Conguration...............................................................................................................................438

Port Numbering............................................................................................................................................................. 439

Interface Types...............................................................................................................................................................442

View Basic Interface Information.................................................................................................................................442

Resetting an Interface to its Factory Default State...................................................................................................448

Enabling a Physical Interface........................................................................................................................................449

Physical Interfaces.........................................................................................................................................................449

14

Contents

Port Pipes................................................................................................................................................................. 449

Setting the Speed of Ethernet Interfaces............................................................................................................ 449

Conguration Task List for Physical Interfaces....................................................................................................450

Overview of Layer Modes...................................................................................................................................... 450

Conguring Layer 2 (Data Link) Mode.................................................................................................................. 451

Conguring Layer 2 (Interface) Mode................................................................................................................... 451

Conguring Layer 3 (Network) Mode...................................................................................................................452

Conguring Layer 3 (Interface) Mode.................................................................................................................. 452

Egress Interface Selection (EIS)..................................................................................................................................453

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

Conguring EIS........................................................................................................................................................ 453

Management Interfaces................................................................................................................................................454

Conguring a Dedicated Management Interface ................................................................................................454

Conguring a Management Interface on an Ethernet Port............................................................................... 455

Port Extender Interfaces.............................................................................................................................................. 456

VLAN Interfaces............................................................................................................................................................ 456

Loopback Interfaces...................................................................................................................................................... 457

Null Interfaces................................................................................................................................................................ 458

Port Channel Interfaces................................................................................................................................................458

Port Channel Denition and Standards.................................................................................................................458

Port Channel Benets.............................................................................................................................................458

Port Channel Implementation.................................................................................................................................458

10/40 Gbps Interfaces in Port Channels...............................................................................................................459

Conguration Tasks for Port Channel Interfaces.................................................................................................459

Creating a Port Channel......................................................................................................................................... 459

Adding a Physical Interface to a Port Channel.....................................................................................................460

Reassigning an Interface to a New Port Channel................................................................................................462

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 462

Adding or Removing a Port Channel from a VLAN............................................................................................. 463

Assigning an IP Address to a Port Channel.......................................................................................................... 463

Deleting or Disabling a Port Channel.....................................................................................................................464

Load Balancing Through Port Channels................................................................................................................464

Changing the Hash Algorithm................................................................................................................................464

Bulk Conguration......................................................................................................................................................... 465

Interface Range....................................................................................................................................................... 465

Bulk Conguration Examples..................................................................................................................................465

Dening Interface Range Macros................................................................................................................................ 467

Dene the Interface Range.....................................................................................................................................467

Choosing an Interface-Range Macro.................................................................................................................... 467

Monitoring and Maintaining Interfaces....................................................................................................................... 468

Maintenance Using TDR.........................................................................................................................................469

Displaying Trac Statistics on HiGig Ports................................................................................................................ 469

Link Bundle Monitoring..................................................................................................................................................470

Monitoring HiGig Link Bundles..................................................................................................................................... 470

Guidelines for Monitoring HiGig Link-Bundles ......................................................................................................471

Contents

15

Enabling HiGig Link-Bundle Monitoring.................................................................................................................472

Non Dell-Qualied Transceivers................................................................................................................................... 472

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 473

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................................ 473

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................475

Link Dampening..............................................................................................................................................................475

Important Points to Remember..............................................................................................................................475

Enabling Link Dampening........................................................................................................................................475

Using Ethernet Pause Frames for Flow Control.........................................................................................................477

Threshold Settings...................................................................................................................................................478

Enabling Pause Frames........................................................................................................................................... 478

Congure the MTU Size on an Interface....................................................................................................................479

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 479

Set Auto-Negotiation Options............................................................................................................................... 480

Provisioning Combo Ports............................................................................................................................................480

View Advanced Interface Information..........................................................................................................................481

Conguring the Interface Sampling Size.............................................................................................................. 482

Conguring the Trac Sampling Size Globally...........................................................................................................483

Dynamic Counters......................................................................................................................................................... 484

Clearing Interface Counters................................................................................................................................... 485

23 Internet Protocol Security (IPSec).......................................................................................................... 486

Conguring IPSec .........................................................................................................................................................486

24 IPv4 Routing............................................................................................................................................ 488

IP Addresses...................................................................................................................................................................488

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

Conguration Tasks for IP Addresses..........................................................................................................................489

Assigning IP Addresses to an Interface.......................................................................................................................489

Conguring Static Routes............................................................................................................................................ 490

Adding description for IPv4 and IPv6 static routes..............................................................................................491

Congure Static Routes for the Management Interface.......................................................................................... 492

Enabling Directed Broadcast........................................................................................................................................ 492

Resolution of Host Names............................................................................................................................................492

Enabling Dynamic Resolution of Host Names............................................................................................................492

Specifying the Local System Domain and a List of Domains................................................................................... 493

Conguring DNS with Traceroute................................................................................................................................493

ARP................................................................................................................................................................................. 494

Conguration Tasks for ARP.................................................................................................................................. 494

Conguring Static ARP Entries..............................................................................................................................495

Conguring ARP Inspection Trust......................................................................................................................... 495

Conguring ARP Timeout.......................................................................................................................................496

Enabling Proxy ARP.................................................................................................................................................496

Clearing ARP Cache................................................................................................................................................496

ARP Learning via Gratuitous ARP..........................................................................................................................497

Enabling ARP Learning via Gratuitous ARP.......................................................................................................... 497

16

Contents

ARP Learning via ARP Request............................................................................................................................. 497

Conguring ARP Retries.........................................................................................................................................498

ICMP............................................................................................................................................................................... 499

Conguration Tasks for ICMP................................................................................................................................499

Enabling ICMP Unreachable Messages................................................................................................................ 499

ICMP Redirects..............................................................................................................................................................499

25 IPv6 Routing............................................................................................................................................ 501

Protocol Overview..........................................................................................................................................................501

Extended Address Space........................................................................................................................................ 501

Stateless Autoconguration....................................................................................................................................501

IPv6 Headers............................................................................................................................................................502

IPv6 Header Fields.................................................................................................................................................. 503

Extension Header Fields......................................................................................................................................... 505

IPv6 Addressing.......................................................................................................................................................506

IPv6 Implementation on the Dell Networking OS...................................................................................................... 507

Conguring the LPM Table for IPv6 Extended Prexes...........................................................................................508

ICMPv6...........................................................................................................................................................................508

Path MTU Discovery.....................................................................................................................................................509

IPv6 Neighbor Discovery..............................................................................................................................................509

IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 510

Conguring the IPv6 Recursive DNS Server........................................................................................................510

Secure Shell (SSH) Over an IPv6 Transport...............................................................................................................512

Conguration Tasks for IPv6.........................................................................................................................................512

Adjusting Your CAM Prole..................................................................................................................................... 512

Assigning an IPv6 Address to an Interface............................................................................................................513

Assigning a Static IPv6 Route.................................................................................................................................514

Conguring Telnet with IPv6...................................................................................................................................514

SNMP over IPv6.......................................................................................................................................................514

Displaying IPv6 Information.....................................................................................................................................515

Displaying an IPv6 Conguration............................................................................................................................515

Displaying IPv6 Routes............................................................................................................................................ 516

Displaying the Running Conguration for an Interface........................................................................................ 517

Clearing IPv6 Routes................................................................................................................................................518

Disabling ND Entry Timeout....................................................................................................................................518

Conguring IPv6 RA Guard...........................................................................................................................................518

Conguring IPv6 RA Guard on an Interface.........................................................................................................520

Monitoring IPv6 RA Guard...................................................................................................................................... 521

26 Intermediate System to Intermediate System.......................................................................................... 522

IS-IS Protocol Overview................................................................................................................................................522

IS-IS Addressing.............................................................................................................................................................522

Multi-Topology IS-IS...................................................................................................................................................... 523

Transition Mode....................................................................................................................................................... 523

Interface Support.....................................................................................................................................................524

Adjacencies...............................................................................................................................................................524

Contents

17

Graceful Restart.............................................................................................................................................................524

Timers........................................................................................................................................................................524

Implementation Information..........................................................................................................................................524

Conguration Information.............................................................................................................................................525

Conguration Tasks for IS-IS..................................................................................................................................526

Conguring the Distance of a Route.....................................................................................................................533

Changing the IS-Type.............................................................................................................................................. 534

Redistributing IPv4 Routes.....................................................................................................................................536

Redistributing IPv6 Routes..................................................................................................................................... 537

Conguring Authentication Passwords.................................................................................................................538

Setting the Overload Bit......................................................................................................................................... 538

Debugging IS-IS.......................................................................................................................................................539

IS-IS Metric Styles.........................................................................................................................................................540

Congure Metric Values............................................................................................................................................... 540

Maximum Values in the Routing Table................................................................................................................... 541

Change the IS-IS Metric Style in One Level Only.................................................................................................541

Leaks from One Level to Another..........................................................................................................................542

Sample Congurations.................................................................................................................................................. 543

27 iSCSI Optimization...................................................................................................................................546

iSCSI Optimization Overview.......................................................................................................................................546

Default iSCSI Optimization Values...............................................................................................................................548

iSCSI Optimization Prerequisites................................................................................................................................. 549

Conguring iSCSI Optimization................................................................................................................................... 549

Displaying iSCSI Optimization Information.................................................................................................................. 551

Enable and Disable iSCSI Optimization.......................................................................................................................552

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.......................................................................553

Monitoring iSCSI Trac Flows.....................................................................................................................................553

Information Monitored in iSCSI Trac Flows.............................................................................................................553

Detection and Auto-Conguration for Dell EqualLogic Arrays.................................................................................554

Conguring Detection and Ports for Dell Compellent Arrays...................................................................................554

Application of Quality of Service to iSCSI Trac Flows........................................................................................... 555

28 Link Aggregation Control Protocol (LACP).............................................................................................. 556

Introduction to Dynamic LAGs and LACP.................................................................................................................. 556

Important Points to Remember............................................................................................................................. 556

LACP Modes............................................................................................................................................................ 557

Conguring LACP Commands............................................................................................................................... 557

LACP Conguration Tasks............................................................................................................................................558

Creating a LAG.........................................................................................................................................................558

Conguring the LAG Interfaces as Dynamic........................................................................................................558

Setting the LACP Long Timeout........................................................................................................................... 559

Monitoring and Debugging LACP..........................................................................................................................559

Shared LAG State Tracking.......................................................................................................................................... 560

Conguring Shared LAG State Tracking...............................................................................................................560

Important Points about Shared LAG State Tracking...........................................................................................562

18

Contents

LACP Basic Conguration Example............................................................................................................................ 562

Congure a LAG on ALPHA................................................................................................................................... 562

29 Layer 2.....................................................................................................................................................570

Manage the MAC Address Table................................................................................................................................. 570

Clearing the MAC Address Table........................................................................................................................... 570

Setting the Aging Time for Dynamic Entries........................................................................................................ 570

Conguring a Static MAC Address.........................................................................................................................571

Displaying the MAC Address Table.........................................................................................................................571

MAC Learning Limit........................................................................................................................................................571

Setting the MAC Learning Limit.............................................................................................................................572

mac learning-limit Dynamic.....................................................................................................................................572

mac learning-limit mac-address-sticky..................................................................................................................572

mac learning-limit station-move.............................................................................................................................573

mac learning-limit no-station-move.......................................................................................................................573

Learning Limit Violation Actions............................................................................................................................. 573

Setting Station Move Violation Actions................................................................................................................ 573

Recovering from Learning Limit and Station Move Violations............................................................................574

Disabling MAC Address Learning on the System.................................................................................................574

Enabling port security............................................................................................................................................. 575

NIC Teaming................................................................................................................................................................... 575

Congure Redundant Pairs...........................................................................................................................................576

Important Points about Conguring Redundant Pairs........................................................................................ 578

Far-End Failure Detection............................................................................................................................................. 579

FEFD State Changes...............................................................................................................................................580

Conguring FEFD.....................................................................................................................................................581

Enabling FEFD on an Interface............................................................................................................................... 581

Debugging FEFD......................................................................................................................................................582

30 Link Layer Discovery Protocol (LLDP)..................................................................................................... 584

802.1AB (LLDP) Overview............................................................................................................................................584

Protocol Data Units................................................................................................................................................. 584

Optional TLVs.................................................................................................................................................................585

Management TLVs.................................................................................................................................................. 585

TIA-1057 (LLDP-MED) Overview.................................................................................................................................587

TIA Organizationally Specic TLVs........................................................................................................................ 587

Congure LLDP.............................................................................................................................................................. 591

Related Conguration Tasks....................................................................................................................................591

Important Points to Remember.............................................................................................................................. 591

LLDP Compatibility..................................................................................................................................................592

CONFIGURATION versus INTERFACE Congurations............................................................................................ 592

Enabling LLDP................................................................................................................................................................593

Disabling and Undoing LLDP.................................................................................................................................. 593

Enabling LLDP on Management Ports........................................................................................................................593

Disabling and Undoing LLDP on Management Ports.......................................................................................... 593

Advertising TLVs............................................................................................................................................................594

Contents

19

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................595

Reserved Unrecognized LLDP TLVs..................................................................................................................... 595

Organizational Specic Unrecognized LLDP TLVs..............................................................................................595

Viewing Unrecognized LLDP TLVs........................................................................................................................596

Viewing the LLDP Conguration................................................................................................................................. 596

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................596

Examples of Viewing Information Advertised by Neighbors...............................................................................597

Conguring LLDPDU Intervals.....................................................................................................................................598

Conguring LLDP Notication Interval.......................................................................................................................599

Conguring Transmit and Receive Mode................................................................................................................... 599

Conguring a Time to Live........................................................................................................................................... 600

Debugging LLDP.............................................................................................................................................................601

Relevant Management Objects................................................................................................................................... 602

31 Multicast Source Discovery Protocol (MSDP)..........................................................................................607

Protocol Overview......................................................................................................................................................... 607

Anycast RP.....................................................................................................................................................................608

Implementation Information......................................................................................................................................... 609

Congure Multicast Source Discovery Protocol........................................................................................................609

Related Conguration Tasks...................................................................................................................................609

Enable MSDP..................................................................................................................................................................613

Manage the Source-Active Cache...............................................................................................................................614

Viewing the Source-Active Cache......................................................................................................................... 614

Limiting the Source-Active Cache..........................................................................................................................614

Clearing the Source-Active Cache.........................................................................................................................615

Enabling the Rejected Source-Active Cache........................................................................................................615

Accept Source-Active Messages that Fail the RFP Check...................................................................................... 615

Specifying Source-Active Messages........................................................................................................................... 619

Limiting the Source-Active Messages from a Peer...................................................................................................620

Preventing MSDP from Caching a Local Source.......................................................................................................620

Preventing MSDP from Caching a Remote Source...................................................................................................621

Preventing MSDP from Advertising a Local Source.................................................................................................. 621

Logging Changes in Peership States...........................................................................................................................622

Terminating a Peership..................................................................................................................................................622

Clearing Peer Statistics.................................................................................................................................................623

Debugging MSDP.......................................................................................................................................................... 623

MSDP with Anycast RP................................................................................................................................................624

Conguring Anycast RP................................................................................................................................................625

Reducing Source-Active Message Flooding.........................................................................................................626

Specifying the RP Address Used in SA Messages.............................................................................................. 626

MSDP Sample Congurations......................................................................................................................................628

32 Multiple Spanning Tree Protocol (MSTP).................................................................................................633

Protocol Overview......................................................................................................................................................... 633

Spanning Tree Variations...............................................................................................................................................634

Implementation Information....................................................................................................................................634

20

Contents

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