Dell Networking Z9500 User guide

Dell Networking Configuration Guide for the

Z9500 Switch

9.11(0.0)

Notes, cautions, and warnings

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

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

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

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2017 - 01

Rev. A00

Contents

1 About this Guide...........................................................................................................................................33

Audience............................................................................................................................................................................33

Conventions......................................................................................................................................................................33

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

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

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

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

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

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

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

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

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

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

Filtering show Command Outputs..................................................................................................................................41

Example of the grep Keyword.................................................................................................................................. 41

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

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

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

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

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

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

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

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

Configure the Management Port IP Address.........................................................................................................47

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

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

Configuring the Enable Password................................................................................................................................. 48

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

Managing the File System........................................................................................................................................ 48

Copy Files to and from the System.........................................................................................................................49

Save the Running-Configuration............................................................................................................................. 50

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

Using HTTP for File Transfers................................................................................................................................. 50

View Configuration Files............................................................................................................................................51

Enabling Software Features on Devices Using a Command Option..........................................................................51

View Command History.................................................................................................................................................. 52

Upgrading Dell Networking OS...................................................................................................................................... 52

Verify Software Images Before Installation..................................................................................................................52

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

Contents

3

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

Creating a Custom Privilege Level.......................................................................................................................... 55

Removing a Command from EXEC Mode..............................................................................................................55

Moving a Command from EXEC Privilege Mode to EXEC Mode....................................................................... 55

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

Allowing Access to Different Modes.......................................................................................................................55

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

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

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

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

Configuring Logging Format .................................................................................................................................. 60

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

Track Login Activity..........................................................................................................................................................61

Restrictions for Tracking Login Activity.................................................................................................................. 61

Configuring Login Activity Tracking......................................................................................................................... 61

Display Login Statistics............................................................................................................................................. 62

Limit Concurrent Login Sessions................................................................................................................................... 63

Restrictions for Limiting the Number of Concurrent Sessions............................................................................63

Configuring Concurrent Session Limit.................................................................................................................... 64

Enabling the System to Clear Existing Sessions....................................................................................................64

Enabling Secured CLI Mode...........................................................................................................................................65

Log Messages in the Internal Buffer.............................................................................................................................65

Configuration Task List for System Log Management.........................................................................................65

Disabling System Logging...............................................................................................................................................65

Sending System Messages to a Syslog Server............................................................................................................66

Configuring a UNIX System as a Syslog Server.................................................................................................... 66

Display the Logging Buffer and the Logging Configuration....................................................................................... 66

Changing System Logging Settings.............................................................................................................................. 67

Configuring a UNIX Logging Facility Level................................................................................................................... 68

Synchronizing Log Messages.........................................................................................................................................69

Enabling Timestamp on Syslog Messages....................................................................................................................69

File Transfer Services......................................................................................................................................................70

Configuration Task List for File Transfer Services................................................................................................ 70

Enabling the FTP Server...........................................................................................................................................70

Configuring FTP Server Parameters.......................................................................................................................70

Configuring FTP Client Parameters......................................................................................................................... 71

Terminal Lines....................................................................................................................................................................71

Denying and Permitting Access to a Terminal Line............................................................................................... 72

Configuring Login Authentication for Terminal Lines............................................................................................ 73

Setting Timeout for EXEC Privilege Mode................................................................................................................... 74

Using Telnet to get to Another Network Device......................................................................................................... 74

Lock CONFIGURATION Mode.......................................................................................................................................75

Viewing the Configuration Lock Status.................................................................................................................. 75

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

Ignoring the Startup Configuration and Booting from the Factory-Default Configuration....................................76

4

Contents

Recovering from a Failed Start on the Z9000 System............................................................................................... 77

Restoring the Factory Default Settings........................................................................................................................ 78

Important Points to Remember............................................................................................................................... 78

Restoring Factory Default Environment Variables.................................................................................................78

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

Port-Authentication Process..........................................................................................................................................83

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

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

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

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

Enabling 802.1X................................................................................................................................................................85

Configuring dot1x Profile ............................................................................................................................................... 86

Configuring the Static MAB and MAB Profile .............................................................................................................87

Configuring Critical VLAN ..............................................................................................................................................87

Configuring MAC addresses for a do1x Profile............................................................................................................ 88

Configuring Request Identity Re-Transmissions..........................................................................................................89

Configuring a Quiet Period after a Failed Authentication.....................................................................................89

Forcibly Authorizing or Unauthorizing a Port...............................................................................................................90

Re-Authenticating a Port................................................................................................................................................ 91

Configuring Timeouts......................................................................................................................................................92

Configuring Dynamic VLAN Assignment with Port Authentication.......................................................................... 93

Guest and Authentication-Fail VLANs.......................................................................................................................... 94

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

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

6 Access Control Lists (ACLs)........................................................................................................................96

IP Access Control Lists (ACLs)......................................................................................................................................97

CAM Usage.................................................................................................................................................................97

Implementing ACLs on Dell Networking OS...........................................................................................................98

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

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

Layer 4 ACL Rules Examples.................................................................................................................................. 100

Configure a Standard IP ACL........................................................................................................................................ 101

Configuring a Standard IP ACL Filter.....................................................................................................................102

Configure an Extended IP ACL.....................................................................................................................................103

Configuring Filters with a Sequence Number.......................................................................................................103

Configuring Filters Without a Sequence Number................................................................................................ 104

Configure Layer 2 and Layer 3 ACLs...........................................................................................................................105

Using ACL VLAN Groups.............................................................................................................................................. 106

Guidelines for Configuring ACL VLAN Groups..................................................................................................... 106

Configuring an ACL VLAN Group...........................................................................................................................106

Allocating ACL VLAN CAM..................................................................................................................................... 107

Applying an IP ACL.........................................................................................................................................................108

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

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

Contents

5

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

Counting ACL Hits.................................................................................................................................................... 110

IP Prefix Lists....................................................................................................................................................................111

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

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

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

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

Route Maps..................................................................................................................................................................... 116

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

Important Points to Remember.....................................................................................................................................117

Configuration Task List for Route Maps................................................................................................................ 117

Configuring Match Routes.......................................................................................................................................119

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

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

Configure a Route Map for Route Tagging...........................................................................................................122

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

Configuring UDF ACL.................................................................................................................................................... 123

Configuring IP Mirror Access Group............................................................................................................................126

Sample Configuration.............................................................................................................................................. 126

Example of viewing IP mirror–access–group applied to an Interface............................................................... 127

7 Bare Metal Provisioning (BMP)..................................................................................................................128

Support for BMP on the S6000 Switch......................................................................................................................128

Enhanced Behavior of the stop bmp Command........................................................................................................ 128

Removal of the Deprecated User-Defined String Parameter with reload-type Command..................................128

Service Tag Information in the Option 60 String....................................................................................................... 128

Replacement of stop jump-start Command With the stop bmp Command...........................................................128

8 Bidirectional Forwarding Detection (BFD)..................................................................................................129

How BFD Works.............................................................................................................................................................129

BFD Packet Format................................................................................................................................................. 130

BFD Sessions.............................................................................................................................................................131

BFD Three-Way Handshake................................................................................................................................... 132

Session State Changes............................................................................................................................................134

Important Points to Remember....................................................................................................................................134

Configure BFD................................................................................................................................................................ 134

Configure BFD for Static Routes........................................................................................................................... 135

Configure BFD for OSPF.........................................................................................................................................137

Configure BFD for OSPFv3.................................................................................................................................... 140

Configure BFD for IS-IS........................................................................................................................................... 141

Configure BFD for BGP...........................................................................................................................................143

Configure BFD for VRRP........................................................................................................................................ 150

Configuring Protocol Liveness................................................................................................................................153

9 Border Gateway Protocol IPv4 (BGPv4)....................................................................................................154

Autonomous Systems (AS)...........................................................................................................................................154

6

Contents

Sessions and Peers........................................................................................................................................................ 156

Establish a Session...................................................................................................................................................156

Route Reflectors............................................................................................................................................................ 157

BGP Attributes............................................................................................................................................................... 158

Best Path Selection Criteria....................................................................................................................................159

Weight....................................................................................................................................................................... 160

Local Preference...................................................................................................................................................... 160

Multi-Exit Discriminators (MEDs)........................................................................................................................... 161

Origin..........................................................................................................................................................................162

AS Path......................................................................................................................................................................163

Next Hop................................................................................................................................................................... 163

Multiprotocol BGP..........................................................................................................................................................163

Implement BGP with Dell Networking OS...................................................................................................................164

Additional Path (Add-Path) Support..................................................................................................................... 164

Advertise IGP Cost as MED for Redistributed Routes........................................................................................164

Ignore Router-ID in Best-Path Calculation........................................................................................................... 165

Four-Byte AS Numbers...........................................................................................................................................165

AS4 Number Representation..................................................................................................................................165

AS Number Migration.............................................................................................................................................. 167

BGP4 Management Information Base (MIB)....................................................................................................... 168

Important Points to Remember..............................................................................................................................168

Configuration Information............................................................................................................................................. 169

BGP Configuration......................................................................................................................................................... 169

Enabling BGP............................................................................................................................................................ 170

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

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

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

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

Maintaining Existing AS Numbers During an AS Migration.................................................................................179

Allowing an AS Number to Appear in its Own AS Path.......................................................................................180

Enabling Neighbor Graceful Restart.......................................................................................................................181

Filtering on an AS-Path Attribute...........................................................................................................................182

Regular Expressions as Filters................................................................................................................................ 183

Redistributing Routes.............................................................................................................................................. 184

Enabling Additional Paths........................................................................................................................................185

Configuring IP Community Lists.............................................................................................................................185

Configuring an IP Extended Community List........................................................................................................186

Filtering Routes with Community Lists..................................................................................................................187

Manipulating the COMMUNITY Attribute.............................................................................................................188

Changing MED Attributes....................................................................................................................................... 189

Changing the LOCAL_PREFERENCE Attribute..................................................................................................190

Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes............190

Changing the WEIGHT Attribute............................................................................................................................ 191

Enabling Multipath.................................................................................................................................................... 191

Filtering BGP Routes............................................................................................................................................... 192

Contents

7

Filtering BGP Routes Using Route Maps.............................................................................................................. 193

Filtering BGP Routes Using AS-PATH Information............................................................................................. 194

Configuring BGP Route Reflectors........................................................................................................................194

Aggregating Routes................................................................................................................................................. 195

Configuring BGP Confederations...........................................................................................................................195

Enabling Route Flap Dampening.............................................................................................................................196

Changing BGP Timers............................................................................................................................................. 198

Enabling BGP Neighbor Soft-Reconfiguration.....................................................................................................199

Enabling or disabling BGP neighbors.....................................................................................................................200

Route Map Continue................................................................................................................................................201

Enabling MBGP Configurations....................................................................................................................................201

BGP Regular Expression Optimization........................................................................................................................202

Debugging BGP............................................................................................................................................................. 202

Storing Last and Bad PDUs....................................................................................................................................203

Capturing PDUs.......................................................................................................................................................204

PDU Counters..........................................................................................................................................................205

Sample Configurations..................................................................................................................................................205

10 Content Addressable Memory (CAM).......................................................................................................212

CAM Allocation............................................................................................................................................................... 212

Test CAM Usage............................................................................................................................................................ 214

View CAM-ACL Settings...............................................................................................................................................214

View CAM Usage........................................................................................................................................................... 215

Return to the Default CAM Configuration..................................................................................................................216

CAM Optimization..........................................................................................................................................................216

Applications for CAM Profiling......................................................................................................................................216

LAG HashingLAG Hashing Based on Bidirectional Flow......................................................................................216

Unified Forwarding Table (UFT) Modes......................................................................................................................217

Configuring UFT Modes.......................................................................................................................................... 217

11 Control Plane Policing (CoPP).................................................................................................................. 219

Z9500 CoPP Implementation...................................................................................................................................... 220

Protocol-based Control Plane Policing..................................................................................................................221

Queue-based Control Plane Policing..................................................................................................................... 221

CoPP Example............................................................................................................................................................... 222

Configure Control Plane Policing.................................................................................................................................223

Configuring CoPP for Protocols............................................................................................................................223

Examples of Configuring CoPP for Protocols......................................................................................................226

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

Examples of Configuring CoPP for CPU Queues................................................................................................228

Displaying CoPP Configuration .............................................................................................................................228

Troubleshooting CoPP Operation................................................................................................................................ 231

Enabling CPU Traffic Statistics.............................................................................................................................. 231

Viewing CPU Traffic Statistics............................................................................................................................... 231

Troubleshooting CPU Packet Loss........................................................................................................................232

Viewing Per-Protocol CoPP Counters..................................................................................................................234

8

Contents

Viewing Per-Queue CoPP Counters.....................................................................................................................236

12 Data Center Bridging (DCB).....................................................................................................................238

Ethernet Enhancements in Data Center Bridging.....................................................................................................239

Priority-Based Flow Control...................................................................................................................................240

Enhanced Transmission Selection..........................................................................................................................241

Data Center Bridging Exchange Protocol (DCBx).............................................................................................. 242

Data Center Bridging in a Traffic Flow................................................................................................................. 242

Priority-Based Flow Control.........................................................................................................................................242

Enhanced Transmission Selection............................................................................................................................... 243

Data Center Bridging Exchange Protocol (DCBx).................................................................................................... 244

Enabling Data Center Bridging.....................................................................................................................................245

DCB Maps and its Attributes................................................................................................................................. 245

Data Center Bridging: Default Configuration............................................................................................................. 246

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

Configuring Lossless Queues................................................................................................................................. 247

Configuring PFC in a DCB Map................................................................................................................................... 248

PFC Configuration Notes....................................................................................................................................... 248

PFC Prerequisites and Restrictions.......................................................................................................................249

Applying a DCB Map on a Port....................................................................................................................................250

Configuring PFC without a DCB Map.........................................................................................................................250

Configuring Lossless QueuesExample:.................................................................................................................. 251

Priority-Based Flow Control Using Dynamic Buffer Method...................................................................................252

Pause and Resume of Traffic.................................................................................................................................252

Buffer Sizes for Lossless or PFC Packets............................................................................................................253

Behavior of Tagged Packets........................................................................................................................................253

Operations on Untagged Packets............................................................................................................................... 254

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

SNMP Support for PFC and Buffer Statistics Tracking.......................................................................................... 255

Generation of PFC for a Priority for Untagged Packets..........................................................................................255

Performing PFC Using DSCP Bits Instead of 802.1p Bits........................................................................................255

PFC and ETS Configuration Examples....................................................................................................................... 256

Using PFC to Manage Converged Ethernet Traffic................................................................................................. 256

Configure Enhanced Transmission Selection.............................................................................................................256

ETS Prerequisites and Restrictions.......................................................................................................................257

Creating an ETS Priority Group............................................................................................................................. 257

ETS Operation with DCBx......................................................................................................................................258

Configuring Bandwidth Allocation for DCBx CIN................................................................................................ 258

Hierarchical Scheduling in ETS Output Policies.........................................................................................................259

Applying the DCB Policies on Linecard.......................................................................................................................260

Applying DCB Policies on SFM Ports..........................................................................................................................260

Using ETS to Manage Converged Ethernet Traffic..................................................................................................260

Configure a DCBx Operation....................................................................................................................................... 260

DCBx Operation........................................................................................................................................................261

DCBx Port Roles.......................................................................................................................................................261

DCB Configuration Exchange................................................................................................................................ 262

Contents

9

Configuration Source Election............................................................................................................................... 263

Propagation of DCB Information........................................................................................................................... 263

Auto-Detection and Manual Configuration of the DCBx Version..................................................................... 263

DCBx Example......................................................................................................................................................... 264

DCBx Prerequisites and Restrictions.................................................................................................................... 264

Configuring DCBx....................................................................................................................................................265

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

QoS dot1p Traffic Classification and Queue Assignment......................................................................................... 275

Configuring the Dynamic Buffer Method................................................................................................................... 275

Sample DCB Configuration...........................................................................................................................................277

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

13 Debugging and Diagnostics.......................................................................................................................279

Offline Diagnostics.........................................................................................................................................................279

Important Points to Remember............................................................................................................................. 279

Running Offline Diagnostics................................................................................................................................... 279

Examples of Running Offline Diagnostics.............................................................................................................288

TRACE Logs...................................................................................................................................................................295

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

Last Restart Reason......................................................................................................................................................295

show hardware Commands......................................................................................................................................... 295

Environmental Monitoring............................................................................................................................................ 298

Display Power Supply Status................................................................................................................................. 298

Display Fan Status...................................................................................................................................................299

Display Transceiver Type........................................................................................................................................299

Recognize an Over-Temperature Condition.........................................................................................................301

Troubleshoot an Over-Temperature Condition................................................................................................... 302

Troubleshooting Packet Loss.......................................................................................................................................303

Displaying Drop Counters....................................................................................................................................... 303

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

Displaying Line Card Counters............................................................................................................................... 307

Accessing Application Core Dumps.............................................................................................................................308

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

Full Kernel Core Dumps................................................................................................................................................ 309

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

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

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

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

Implementation Information.......................................................................................................................................... 313

Configure the System to be a DHCP Server..............................................................................................................314

Configuring the Server for Automatic Address Allocation..................................................................................314

Specifying a Default Gateway................................................................................................................................ 316

Configure a Method of Hostname Resolution......................................................................................................316

Using DNS for Address Resolution........................................................................................................................ 316

Using NetBIOS WINS for Address Resolution......................................................................................................316

10

Contents

Creating Manual Binding Entries............................................................................................................................ 317

Debugging the DHCP Server..................................................................................................................................317

Using DHCP Clear Commands............................................................................................................................... 317

Configure the System to be a Relay Agent................................................................................................................ 318

Configure the System to be a DHCP Client...............................................................................................................320

DHCP Client on a Management Interface............................................................................................................320

DHCP Client Operation with Other Features...................................................................................................... 320

Configure Secure DHCP................................................................................................................................................321

Option 82...................................................................................................................................................................321

DHCP Snooping.......................................................................................................................................................322

Configuring the DHCP secondary-subnet............................................................................................................325

Drop DHCP Packets on Snooped VLANs Only................................................................................................... 326

Dynamic ARP Inspection........................................................................................................................................ 326

Configuring Dynamic ARP Inspection................................................................................................................... 327

Source Address Validation............................................................................................................................................328

Enabling IP Source Address Validation................................................................................................................. 328

DHCP MAC Source Address Validation................................................................................................................329

Enabling IP+MAC Source Address Validation......................................................................................................329

Viewing the Number of SAV Dropped Packets...................................................................................................330

Clearing the Number of SAV Dropped Packets.................................................................................................. 330

15 Equal Cost Multi-Path (ECMP)................................................................................................................ 331

ECMP for Flow-Based Affinity..................................................................................................................................... 331

Enabling Deterministic ECMP Next Hop...............................................................................................................331

Configuring the Hash Algorithm Seed................................................................................................................... 331

Link Bundle Monitoring................................................................................................................................................. 332

Managing ECMP Group Paths...............................................................................................................................332

Creating an ECMP Group Bundle..........................................................................................................................333

Modifying the ECMP Group Threshold................................................................................................................ 333

RTAG7.............................................................................................................................................................................334

Flow-based Hashing for ECMP................................................................................................................................... 335

ECMP Support in L3 Host and LPM Tables...............................................................................................................338

16 FIP Snooping............................................................................................................................................339

Fibre Channel over Ethernet........................................................................................................................................339

Ensure Robustness in a Converged Ethernet Network............................................................................................339

FIP Snooping on Ethernet Bridges...............................................................................................................................341

Using FIP Snooping....................................................................................................................................................... 343

FIP Snooping Prerequisites.................................................................................................................................... 343

Important Points to Remember............................................................................................................................. 343

Enabling the FCoE Transit Feature....................................................................................................................... 344

Enable FIP Snooping on VLANs.............................................................................................................................344

Configure the FC-MAP Value................................................................................................................................345

Configure a Port for a Bridge-to-Bridge Link...................................................................................................... 345

Configure a Port for a Bridge-to-FCF Link.......................................................................................................... 345

Impact on Other Software Features.....................................................................................................................345

Contents

11

FIP Snooping Restrictions...................................................................................................................................... 346

Configuring FIP Snooping.......................................................................................................................................346

FCoE Transit Configuration Example.......................................................................................................................... 347

Displaying FIP Snooping Information...........................................................................................................................348

17 FIPS Cryptography...................................................................................................................................352

Configuration Tasks...................................................................................................................................................... 352

Preparing the System................................................................................................................................................... 352

Enabling FIPS Mode......................................................................................................................................................353

Generating Host-Keys.................................................................................................................................................. 353

Monitoring FIPS Mode Status..................................................................................................................................... 353

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

18 Flex Hash................................................................................................................................................. 357

Flex Hash Capability Overview.....................................................................................................................................357

Configuring the Flex Hash Mechanism.......................................................................................................................357

RDMA Over Converged Ethernet (RoCE) Overview...............................................................................................358

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.................................................................................... 359

19 Force10 Resilient Ring Protocol (FRRP).................................................................................................. 360

Protocol Overview.........................................................................................................................................................360

Ring Status................................................................................................................................................................361

Multiple FRRP Rings................................................................................................................................................ 361

Important FRRP Points...........................................................................................................................................362

Important FRRP Concepts.....................................................................................................................................363

Implementing FRRP.......................................................................................................................................................364

FRRP Configuration...................................................................................................................................................... 364

Creating the FRRP Group...................................................................................................................................... 364

Configuring the Control VLAN...............................................................................................................................365

Configuring and Adding the Member VLANs...................................................................................................... 366

Setting the FRRP Timers........................................................................................................................................367

Clearing the FRRP Counters..................................................................................................................................367

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

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

Troubleshooting FRRP..................................................................................................................................................368

Configuration Checks..............................................................................................................................................368

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

FRRP Support on VLT.................................................................................................................................................. 369

Example Scenario.................................................................................................................................................... 370

Important Points to Remember..............................................................................................................................371

20 GARP VLAN Registration Protocol (GVRP).............................................................................................372

Important Points to Remember................................................................................................................................... 372

Configure GVRP............................................................................................................................................................ 373

Related Configuration Tasks.................................................................................................................................. 373

Enabling GVRP Globally................................................................................................................................................ 374

12

Contents

Enabling GVRP on a Layer 2 Interface........................................................................................................................374

Configure GVRP Registration...................................................................................................................................... 374

Configure a GARP Timer.............................................................................................................................................. 375

21 Internet Group Management Protocol (IGMP).........................................................................................376

IGMP Implementation Information.............................................................................................................................. 376

IGMP Protocol Overview..............................................................................................................................................376

IGMP Version 2........................................................................................................................................................376

IGMP Version 3........................................................................................................................................................378

Configure IGMP..............................................................................................................................................................381

Related Configuration Tasks...................................................................................................................................381

Viewing IGMP Enabled Interfaces...............................................................................................................................382

Selecting an IGMP Version...........................................................................................................................................382

Viewing IGMP Groups...................................................................................................................................................382

Adjusting Timers............................................................................................................................................................ 383

Adjusting Query and Response Timers................................................................................................................. 383

Adjusting the IGMP Querier Timeout Value......................................................................................................... 384

Configuring a Static IGMP Group................................................................................................................................384

Enabling IGMP Immediate-Leave................................................................................................................................ 384

IGMP Snooping..............................................................................................................................................................385

IGMP Snooping Implementation Information.......................................................................................................385

Configuring IGMP Snooping.................................................................................................................................. 385

Removing a Group-Port Association.....................................................................................................................386

Disabling Multicast Flooding...................................................................................................................................386

Specifying a Port as Connected to a Multicast Router......................................................................................386

Configuring the Switch as Querier........................................................................................................................ 387

Fast Convergence after MSTP Topology Changes.................................................................................................. 387

Designating a Multicast Router Interface...................................................................................................................387

22 Interfaces................................................................................................................................................ 388

Basic Interface Configuration...................................................................................................................................... 388

Advanced Interface Configuration.............................................................................................................................. 388

Port Numbering Convention........................................................................................................................................ 389

Interface Types..............................................................................................................................................................390

View Basic Interface Information................................................................................................................................ 390

Resetting an Interface to its Factory Default State.................................................................................................. 391

Enabling a Physical Interface....................................................................................................................................... 392

Physical Interfaces........................................................................................................................................................ 392

Port-Pipes.................................................................................................................................................................393

Network Processing Units (NPUs)....................................................................................................................... 393

Configuration Task List for Physical Interfaces...................................................................................................393

Overview of Layer Modes...................................................................................................................................... 394

Configuring Layer 2 (Data Link) Mode................................................................................................................. 394

Configuring Layer 2 (Interface) Mode..................................................................................................................394

Configuring Layer 3 (Network) Mode.................................................................................................................. 395

Configuring Layer 3 (Interface) Mode..................................................................................................................395

Contents

13

Egress Interface Selection (EIS)................................................................................................................................. 396

Important Points to Remember.............................................................................................................................396

Configuring EIS........................................................................................................................................................ 396

Management Interfaces................................................................................................................................................397

Configuring Management Interfaces.................................................................................................................... 397

Configuring a Management Interface on an Ethernet Port...............................................................................398

VLAN Interfaces............................................................................................................................................................ 399

Loopback Interfaces......................................................................................................................................................400

Null Interfaces................................................................................................................................................................400

Port Channel Interfaces................................................................................................................................................400

Port Channel Definition and Standards................................................................................................................. 401

Port Channel Benefits..............................................................................................................................................401

Port Channel Implementation................................................................................................................................. 401

Interfaces in Port Channels....................................................................................................................................402

Configuration Tasks for Port Channel Interfaces................................................................................................402

Creating a Port Channel......................................................................................................................................... 402

Adding a Physical Interface to a Port Channel.................................................................................................... 403

Reassigning an Interface to a New Port Channel............................................................................................... 404

Configuring the Minimum Oper Up Links in a Port Channel..............................................................................405

Adding or Removing a Port Channel from a VLAN.............................................................................................405

Assigning an IP Address to a Port Channel..........................................................................................................406

Deleting or Disabling a Port Channel.....................................................................................................................407

Load Balancing Through Port Channels............................................................................................................... 407

Changing the Hash Algorithm................................................................................................................................ 407

Bulk Configuration.........................................................................................................................................................408

Interface Range....................................................................................................................................................... 408

Bulk Configuration Examples................................................................................................................................. 408

Defining Interface Range Macros................................................................................................................................ 410

Define the Interface Range......................................................................................................................................411

Choosing an Interface-Range Macro..................................................................................................................... 411

Monitoring and Maintaining Interfaces.........................................................................................................................411

Displaying Traffic Statistics on HiGig Ports................................................................................................................ 412

Link Bundle Monitoring..................................................................................................................................................412

Monitoring HiGig Link Bundles......................................................................................................................................413

Guidelines for Monitoring HiGig Link-Bundles ..................................................................................................... 414

Enabling HiGig Link-Bundle Monitoring................................................................................................................. 414

Splitting 40G Ports without Reload............................................................................................................................. 415

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 415

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port............................................................................ 416

Configuring wavelength for 10–Gigabit SFP+ optics................................................................................................ 417

Link Dampening...............................................................................................................................................................417

Important Points to Remember..............................................................................................................................418

Enabling Link Dampening.........................................................................................................................................418

Using Ethernet Pause Frames for Flow Control........................................................................................................ 419

Enabling Pause Frames...........................................................................................................................................420

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Configure the MTU Size on an Interface.................................................................................................................... 421

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 421

Set Auto-Negotiation Options............................................................................................................................... 422

View Advanced Interface Information........................................................................................................................ 422

Configuring the Interface Sampling Size.............................................................................................................. 423

Configuring the Traffic Sampling Size Globally..........................................................................................................424

Dynamic Counters......................................................................................................................................................... 425

Clearing Interface Counters................................................................................................................................... 426

23 Internet Protocol Security (IPSec).......................................................................................................... 427

Configuring IPSec .........................................................................................................................................................427

24 IPv4 Routing............................................................................................................................................429

IP Addresses...................................................................................................................................................................430

Implementation Information................................................................................................................................... 430

Configuration Tasks for IP Addresses.........................................................................................................................430

Assigning IP Addresses to an Interface...................................................................................................................... 430

Configuring Static Routes.............................................................................................................................................431

Configure Static Routes for the Management Interface......................................................................................... 432

Enabling Directed Broadcast........................................................................................................................................432

Resolution of Host Names............................................................................................................................................433

Enabling Dynamic Resolution of Host Names............................................................................................................433

Specifying the Local System Domain and a List of Domains................................................................................... 433

Configuring DNS with Traceroute...............................................................................................................................434

ARP................................................................................................................................................................................. 435

Configuration Tasks for ARP....................................................................................................................................... 435

Configuring Static ARP Entries....................................................................................................................................435

Enabling Proxy ARP.......................................................................................................................................................436

Clearing ARP Cache......................................................................................................................................................436

ARP Learning via Gratuitous ARP............................................................................................................................... 436

Enabling ARP Learning via Gratuitous ARP............................................................................................................... 436

ARP Learning via ARP Request................................................................................................................................... 437

Configuring ARP Retries...............................................................................................................................................437

ICMP............................................................................................................................................................................... 438

Configuration Tasks for ICMP..................................................................................................................................... 438

Enabling ICMP Unreachable Messages...................................................................................................................... 438

UDP Helper.....................................................................................................................................................................439

Configure UDP Helper............................................................................................................................................ 439

Important Points to Remember.............................................................................................................................439

Enabling UDP Helper.....................................................................................................................................................439

Configuring a Broadcast Address................................................................................................................................439

Configurations Using UDP Helper............................................................................................................................... 440

UDP Helper with Broadcast-All Addresses................................................................................................................ 440

UDP Helper with Subnet Broadcast Addresses......................................................................................................... 441

UDP Helper with Configured Broadcast Addresses.................................................................................................. 441

UDP Helper with No Configured Broadcast Addresses........................................................................................... 442

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Troubleshooting UDP Helper....................................................................................................................................... 442

25 IPv6 Routing............................................................................................................................................443

Protocol Overview.........................................................................................................................................................443

Extended Address Space........................................................................................................................................444

Stateless Autoconfiguration...................................................................................................................................444

IPv6 Headers............................................................................................................................................................444

IPv6 Header Fields...................................................................................................................................................445

Extension Header Fields..........................................................................................................................................447

Addressing................................................................................................................................................................448

Implementing IPv6 with Dell Networking OS.............................................................................................................449

Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support........................................................................ 449

ICMPv6...........................................................................................................................................................................449

Path MTU Discovery.....................................................................................................................................................449

IPv6 Neighbor Discovery..............................................................................................................................................450

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................451

Configuration Task List for IPv6 RDNSS.............................................................................................................. 451

Secure Shell (SSH) Over an IPv6 Transport............................................................................................................. 453

Configuration Tasks for IPv6....................................................................................................................................... 453

Adjusting Your CAM-Profile................................................................................................................................... 454

Assigning an IPv6 Address to an Interface...........................................................................................................454

Assigning a Static IPv6 Route................................................................................................................................455

Configuring Telnet with IPv6................................................................................................................................. 455

SNMP over IPv6......................................................................................................................................................456

Displaying IPv6 Information....................................................................................................................................456

Displaying an IPv6 Interface Information..............................................................................................................456

Showing IPv6 Routes..............................................................................................................................................457

Showing the Running-Configuration for an Interface........................................................................................ 458

Clearing IPv6 Routes...............................................................................................................................................459

Configuring IPv6 RA Guard..........................................................................................................................................459

Configuring IPv6 RA Guard on an Interface......................................................................................................... 461

Monitoring IPv6 RA Guard......................................................................................................................................461

26 iSCSI Optimization.................................................................................................................................. 462

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

Default iSCSI Optimization Values.............................................................................................................................. 464

iSCSI Optimization Prerequisites.................................................................................................................................464

Configuring iSCSI Optimization................................................................................................................................... 464

Displaying iSCSI Optimization Information................................................................................................................. 466

Enable and Disable iSCSI Optimization.......................................................................................................................468

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.....................................................................468

Monitoring iSCSI Traffic Flows....................................................................................................................................468

Information Monitored in iSCSI Traffic Flows............................................................................................................469

Detection and Auto-Configuration for Dell EqualLogic Arrays................................................................................ 469

Configuring Detection and Ports for Dell Compellent Arrays.................................................................................. 470

Application of Quality of Service to iSCSI Traffic Flows.......................................................................................... 470

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Contents

27 Intermediate System to Intermediate System...........................................................................................471

IS-IS Protocol Overview................................................................................................................................................ 471

IS-IS Addressing..............................................................................................................................................................471

Multi-Topology IS-IS......................................................................................................................................................472

Transition Mode....................................................................................................................................................... 472

Interface Support.....................................................................................................................................................473

Adjacencies...............................................................................................................................................................473

Graceful Restart.............................................................................................................................................................473

Timers........................................................................................................................................................................473

Implementation Information..........................................................................................................................................473

Configuration Information.............................................................................................................................................474

Configuration Tasks for IS-IS.................................................................................................................................475

Configuring the Distance of a Route.....................................................................................................................482

Changing the IS-Type............................................................................................................................................. 483

Redistributing IPv4 Routes.....................................................................................................................................485

Redistributing IPv6 Routes.....................................................................................................................................486

Configuring Authentication Passwords.................................................................................................................487

Setting the Overload Bit......................................................................................................................................... 487

Debugging IS-IS....................................................................................................................................................... 488

IS-IS Metric Styles.........................................................................................................................................................489

Configure Metric Values...............................................................................................................................................489

Maximum Values in the Routing Table..................................................................................................................490

Change the IS-IS Metric Style in One Level Only............................................................................................... 490

Leaks from One Level to Another..........................................................................................................................491

Sample Configurations..................................................................................................................................................492

28 Link Aggregation Control Protocol (LACP)..............................................................................................495

Introduction to Dynamic LAGs and LACP..................................................................................................................495

Important Points to Remember.............................................................................................................................495

LACP Modes............................................................................................................................................................ 496

Configuring LACP Commands...............................................................................................................................496

LACP Configuration Tasks........................................................................................................................................... 497

Creating a LAG.........................................................................................................................................................497

Configuring the LAG Interfaces as Dynamic........................................................................................................497

Setting the LACP Long Timeout........................................................................................................................... 498

Monitoring and Debugging LACP..........................................................................................................................498

Shared LAG State Tracking......................................................................................................................................... 499

Configuring Shared LAG State Tracking.............................................................................................................. 499

Important Points about Shared LAG State Tracking...........................................................................................501

LACP Basic Configuration Example.............................................................................................................................501

Configure a LAG on ALPHA....................................................................................................................................501

29 Layer 2.....................................................................................................................................................510

Manage the MAC Address Table................................................................................................................................. 510

Clearing the MAC Address Table...........................................................................................................................510

Contents

17

Setting the Aging Time for Dynamic Entries........................................................................................................ 510

Configuring a Static MAC Address.........................................................................................................................511

Displaying the MAC Address Table.........................................................................................................................511

MAC Learning Limit........................................................................................................................................................ 511

Setting the MAC Learning Limit.............................................................................................................................512

mac learning-limit Dynamic..................................................................................................................................... 512

mac learning-limit mac-address-sticky..................................................................................................................512

mac learning-limit station-move.............................................................................................................................513

mac learning-limit no-station-move.......................................................................................................................513

Learning Limit Violation Actions............................................................................................................................. 513

Setting Station Move Violation Actions.................................................................................................................514

Recovering from Learning Limit and Station Move Violations........................................................................... 514

Disabling MAC Address Learning on the System.......................................................................................................515

NIC Teaming................................................................................................................................................................... 515

Configure Redundant Pairs...........................................................................................................................................516

Important Points about Configuring Redundant Pairs........................................................................................ 518

Far-End Failure Detection............................................................................................................................................. 519

FEFD State Changes.............................................................................................................................................. 520

Configuring FEFD.................................................................................................................................................... 520

Enabling FEFD on an Interface...............................................................................................................................521

Debugging FEFD......................................................................................................................................................522

30 Link Layer Discovery Protocol (LLDP).....................................................................................................524

802.1AB (LLDP) Overview........................................................................................................................................... 524

Protocol Data Units.................................................................................................................................................524

Optional TLVs................................................................................................................................................................ 525

Management TLVs..................................................................................................................................................525

TIA-1057 (LLDP-MED) Overview................................................................................................................................527

TIA Organizationally Specific TLVs........................................................................................................................527

Configure LLDP.............................................................................................................................................................. 531

Related Configuration Tasks...................................................................................................................................531

Important Points to Remember..............................................................................................................................531

LLDP Compatibility..................................................................................................................................................532

CONFIGURATION versus INTERFACE Configurations........................................................................................... 532

Enabling LLDP................................................................................................................................................................532

Disabling and Undoing LLDP.................................................................................................................................. 533

Enabling LLDP on Management Ports........................................................................................................................533

Disabling and Undoing LLDP on Management Ports..........................................................................................533

Advertising TLVs............................................................................................................................................................533

Viewing the LLDP Configuration................................................................................................................................. 534

Viewing Information Advertised by Adjacent LLDP Agents.....................................................................................535

Configuring LLDPDU Intervals.....................................................................................................................................536

Configuring Transmit and Receive Mode................................................................................................................... 537

Configuring the Time to Live Value.............................................................................................................................537

Debugging LLDP............................................................................................................................................................538

Relevant Management Objects...................................................................................................................................539

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Contents

31 Microsoft Network Load Balancing.......................................................................................................... 544

NLB Unicast and Multicast Modes..............................................................................................................................544

NLB Unicast Mode Example.................................................................................................................................. 544

NLB Multicast Mode Example............................................................................................................................... 544

NLB Benefits..................................................................................................................................................................545

NLB Restrictions............................................................................................................................................................545

NLB VLAN Flooding...................................................................................................................................................... 545

Configuring NLB on a Switch...................................................................................................................................... 546

32 Multicast Source Discovery Protocol (MSDP).........................................................................................547

Protocol Overview.........................................................................................................................................................547

Anycast RP.....................................................................................................................................................................548

Implementation Information......................................................................................................................................... 549

Configure Multicast Source Discovery Protocol....................................................................................................... 549

Related Configuration Tasks..................................................................................................................................549

Enable MSDP.................................................................................................................................................................553

Manage the Source-Active Cache..............................................................................................................................554

Viewing the Source-Active Cache........................................................................................................................ 554

Limiting the Source-Active Cache........................................................................................................................ 554

Clearing the Source-Active Cache........................................................................................................................555

Enabling the Rejected Source-Active Cache.......................................................................................................555

Accept Source-Active Messages that Fail the RFP Check.....................................................................................555

Specifying Source-Active Messages.......................................................................................................................... 558

Limiting the Source-Active Messages from a Peer.................................................................................................. 559

Preventing MSDP from Caching a Local Source......................................................................................................559

Preventing MSDP from Caching a Remote Source................................................................................................. 560

Preventing MSDP from Advertising a Local Source.................................................................................................560

Logging Changes in Peership States...........................................................................................................................561

Terminating a Peership..................................................................................................................................................561

Clearing Peer Statistics................................................................................................................................................ 562

Debugging MSDP..........................................................................................................................................................562

MSDP with Anycast RP................................................................................................................................................563

Configuring Anycast RP............................................................................................................................................... 564

Reducing Source-Active Message Flooding........................................................................................................565

Specifying the RP Address Used in SA Messages..............................................................................................565

MSDP Sample Configurations..................................................................................................................................... 565

33 Multiple Spanning Tree Protocol (MSTP)................................................................................................567

Protocol Overview.........................................................................................................................................................567

Spanning Tree Variations..............................................................................................................................................568

Implementation Information................................................................................................................................... 568

Configure Multiple Spanning Tree Protocol...............................................................................................................568

Related Configuration Tasks..................................................................................................................................569

Enable Multiple Spanning Tree Globally......................................................................................................................569

Adding and Removing Interfaces................................................................................................................................ 569

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Creating Multiple Spanning Tree Instances................................................................................................................570

Influencing MSTP Root Selection................................................................................................................................570

Interoperate with Non-Dell Bridges............................................................................................................................. 571

Changing the Region Name or Revision......................................................................................................................571

Modifying Global Parameters.......................................................................................................................................572

Modifying the Interface Parameters........................................................................................................................... 573

Configuring an EdgePort.............................................................................................................................................. 574

Flush MAC Addresses after a Topology Change.......................................................................................................574

MSTP Sample Configurations......................................................................................................................................575

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

ConfigurationSFTOS Example Running-Configuration.......................................................................................575

Debugging and Verifying MSTP Configurations........................................................................................................576

34 Multicast Features...................................................................................................................................578

Enabling IP Multicast.....................................................................................................................................................578

Implementation Information......................................................................................................................................... 578

First Packet Forwarding for Lossless Multicast........................................................................................................ 579

Multicast Policies...........................................................................................................................................................579

IPv4 Multicast Policies............................................................................................................................................ 579

Understanding Multicast Traceroute (mtrace)......................................................................................................... 586

Important Points to Remember............................................................................................................................. 587

Printing Multicast Traceroute (mtrace) Paths.......................................................................................................... 587

Supported Error Codes.................................................................................................................................................588

mtrace Scenarios...........................................................................................................................................................589

35 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................................595

Protocol Overview........................................................................................................................................................ 595

Autonomous System (AS) Areas.......................................................................................................................... 595

Area Types............................................................................................................................................................... 596

Networks and Neighbors........................................................................................................................................597

Router Types............................................................................................................................................................597

Designated and Backup Designated Routers.......................................................................................................599

Link-State Advertisements (LSAs).......................................................................................................................599

Router Priority and Cost.........................................................................................................................................600

OSPF with Dell Networking OS....................................................................................................................................601

Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................. 602

Multi-Process OSPFv2 with VRF..........................................................................................................................602

RFC-2328 Compliant OSPF Flooding...................................................................................................................602

OSPF ACK Packing.................................................................................................................................................603

Setting OSPF Adjacency with Cisco Routers......................................................................................................603

Configuration Information............................................................................................................................................ 604

Configuration Task List for OSPFv2 (OSPF for IPv4)....................................................................................... 604

Sample Configurations for OSPFv2.......................................................................................................................615

Configuration Task List for OSPFv3 (OSPF for IPv6)..............................................................................................616

Enabling IPv6 Unicast Routing................................................................................................................................617

Applying cost for OSPFv3.......................................................................................................................................617

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Dell Networking Z9500 User guide

Dell Networking Z9500 User guide

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