Dell Networking S3100 Series User guide

Dell Conguration Guide for the S3100 Series

9.11(2.0P2)

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 - 05

Rev. A00

Contents

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

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

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

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

2 Conguration 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 Conguration Mode...........................................................................................................................42

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

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

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

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................46

Entering CLI commands Using an SSH Connection..............................................................................................46

Executing Local CLI Scripts Using an SSH Connection........................................................................................46

Default Conguration.......................................................................................................................................................47

Conguring a Host Name................................................................................................................................................47

Accessing the System Remotely....................................................................................................................................47

Accessing the System Remotely..............................................................................................................................47

Congure the Management Port IP Address......................................................................................................... 48

Congure a Management Route..............................................................................................................................48

Conguring a Username and Password.................................................................................................................. 48

Conguring the Enable Password..................................................................................................................................49

Conguration File Management.....................................................................................................................................49

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

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

Save the Running-Conguration..............................................................................................................................52

Congure the Overload Bit for a Startup Scenario............................................................................................... 52

Viewing Files...............................................................................................................................................................52

Compressing Conguration Files............................................................................................................................. 53

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

Enabling Software Features on Devices Using a Command Option......................................................................... 56

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

Contents

3

Upgrading Dell Networking OS.......................................................................................................................................57

Verify Software Images Before Installation...................................................................................................................57

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

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

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

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

Removing a Command from EXEC Mode............................................................................................................... 61

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................ 61

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

Allowing Access to Dierent Modes........................................................................................................................ 61

Applying a Privilege Level to a Username............................................................................................................... 63

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

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

Audit and Security Logs............................................................................................................................................ 64

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

Display the Logging Buer and the Logging Conguration..................................................................................66

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

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

Track Login Activity......................................................................................................................................................... 68

Restrictions for Tracking Login Activity...................................................................................................................68

Conguring Login Activity Tracking......................................................................................................................... 68

Display Login Statistics..............................................................................................................................................69

Limit Concurrent Login Sessions....................................................................................................................................70

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................70

Conguring Concurrent Session Limit.....................................................................................................................70

Enabling the System to Clear Existing Sessions..................................................................................................... 71

Enabling Secured CLI Mode............................................................................................................................................72

Log Messages in the Internal Buer..............................................................................................................................72

Conguration Task List for System Log Management.......................................................................................... 72

Disabling System Logging............................................................................................................................................... 72

Sending System Messages to a Syslog Server............................................................................................................ 73

Conguring a UNIX System as a Syslog Server.....................................................................................................73

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

Display the Logging Buer and the Logging Conguration........................................................................................ 74

Conguring a UNIX Logging Facility Level.................................................................................................................... 74

Synchronizing Log Messages......................................................................................................................................... 75

Enabling Timestamp on Syslog Messages.................................................................................................................... 76

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

Conguration Task List for File Transfer Services..................................................................................................77

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

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

Conguring FTP Client Parameters......................................................................................................................... 78

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

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

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

4

Contents

Setting Timeout for EXEC Privilege Mode................................................................................................................... 80

Using Telnet to get to Another Network Device...........................................................................................................81

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

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

5 802.1X..........................................................................................................................................................83

Port-Authentication Process..........................................................................................................................................85

EAP over RADIUS......................................................................................................................................................85

Conguring 802.1X...........................................................................................................................................................86

Related Conguration Tasks..................................................................................................................................... 86

Important Points to Remember......................................................................................................................................86

Enabling 802.1X.................................................................................................................................................................87

Conguring dot1x Prole ................................................................................................................................................88

Conguring MAC addresses for a do1x Prole.............................................................................................................89

Conguring the Static MAB and MAB Prole .............................................................................................................89

Conguring Critical VLAN ..............................................................................................................................................90

Conguring Request Identity Re-Transmissions............................................................................................................91

Conguring a Quiet Period after a Failed Authentication...................................................................................... 91

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 92

Re-Authenticating a Port................................................................................................................................................ 93

Conguring Timeouts......................................................................................................................................................94

Conguring Dynamic VLAN Assignment with Port Authentication.......................................................................... 95

Guest and Authentication-Fail VLANs.......................................................................................................................... 96

Conguring a Guest VLAN....................................................................................................................................... 96

Conguring an Authentication-Fail VLAN...............................................................................................................96

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)....................................98

Optimizing CAM Utilization During the Attachment of ACLs to VLANs...................................................................98

Guidelines for Conguring ACL VLAN Groups.............................................................................................................99

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters................................................ 99

Conguring ACL VLAN Groups................................................................................................................................99

Conguring FP Blocks for VLAN Parameters.......................................................................................................100

Viewing CAM Usage....................................................................................................................................................... 101

Allocating FP Blocks for VLAN Processes.................................................................................................................. 102

7 Access Control Lists (ACLs)....................................................................................................................... 104

IP Access Control Lists (ACLs).....................................................................................................................................105

CAM Usage...............................................................................................................................................................106

Implementing ACLs on Dell Networking OS..........................................................................................................106

Important Points to Remember.................................................................................................................................... 108

Conguration Task List for Route Maps................................................................................................................108

Conguring Match Routes.......................................................................................................................................110

Conguring Set Conditions.......................................................................................................................................111

Congure a Route Map for Route Redistribution..................................................................................................112

Congure a Route Map for Route Tagging............................................................................................................ 113

Continue Clause........................................................................................................................................................ 113

Contents

5

IP Fragment Handling..................................................................................................................................................... 114

IP Fragments ACL Examples....................................................................................................................................114

Layer 4 ACL Rules Examples................................................................................................................................... 114

Congure a Standard IP ACL.........................................................................................................................................115

Conguring a Standard IP ACL Filter......................................................................................................................116

Congure an Extended IP ACL...................................................................................................................................... 117

Conguring Filters with a Sequence Number........................................................................................................117

Conguring Filters Without a Sequence Number................................................................................................. 118

Congure Layer 2 and Layer 3 ACLs............................................................................................................................ 119

Assign an IP ACL to an Interface..................................................................................................................................120

Applying an IP ACL.........................................................................................................................................................120

Counting ACL Hits.....................................................................................................................................................121

Congure Ingress ACLs.................................................................................................................................................. 121

Congure Egress ACLs...................................................................................................................................................121

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 122

IP Prex Lists.................................................................................................................................................................. 123

Implementation Information.................................................................................................................................... 123

Conguration Task List for Prex Lists.................................................................................................................. 123

ACL Resequencing......................................................................................................................................................... 127

Resequencing an ACL or Prex List....................................................................................................................... 127

Route Maps.....................................................................................................................................................................129

Implementation Information.................................................................................................................................... 129

Logging of ACL Processes............................................................................................................................................ 129

Guidelines for Conguring ACL Logging................................................................................................................130

Conguring ACL Logging........................................................................................................................................ 130

Flow-Based Monitoring Support for ACLs...................................................................................................................131

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

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

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

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

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

BFD Sessions............................................................................................................................................................ 136

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

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

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

Congure BFD................................................................................................................................................................ 139

Congure BFD for Physical Ports...........................................................................................................................140

Congure BFD for Static Routes.............................................................................................................................141

Congure BFD for OSPF.........................................................................................................................................144

Congure BFD for OSPFv3.....................................................................................................................................147

Congure BFD for IS-IS...........................................................................................................................................148

Congure BFD for BGP...........................................................................................................................................150

Congure BFD for VRRP.........................................................................................................................................157

Conguring Protocol Liveness................................................................................................................................160

Troubleshooting BFD................................................................................................................................................160

6

Contents

9 Border Gateway Protocol IPv4 (BGPv4).................................................................................................... 162

Autonomous Systems (AS)........................................................................................................................................... 162

Sessions and Peers........................................................................................................................................................ 164

Establish a Session................................................................................................................................................... 164

Route Reectors.............................................................................................................................................................165

BGP Attributes................................................................................................................................................................166

Best Path Selection Criteria....................................................................................................................................166

Weight........................................................................................................................................................................168

Local Preference.......................................................................................................................................................168

Multi-Exit Discriminators (MEDs)...........................................................................................................................169

Origin..........................................................................................................................................................................170

AS Path.......................................................................................................................................................................171

Next Hop.................................................................................................................................................................... 171

Multiprotocol BGP...........................................................................................................................................................171

Implement BGP with Dell Networking OS...................................................................................................................172

Additional Path (Add-Path) Support......................................................................................................................172

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................172

Ignore Router-ID in Best-Path Calculation............................................................................................................ 173

Four-Byte AS Numbers............................................................................................................................................173

AS4 Number Representation.................................................................................................................................. 173

AS Number Migration.............................................................................................................................................. 175

BGP4 Management Information Base (MIB)........................................................................................................176

Important Points to Remember.............................................................................................................................. 176

Conguration Information.............................................................................................................................................. 177

BGP Conguration..........................................................................................................................................................177

Enabling BGP............................................................................................................................................................ 178

Conguring AS4 Number Representations............................................................................................................181

Conguring Peer Groups......................................................................................................................................... 183

Conguring BGP Fast Fall-Over.............................................................................................................................185

Conguring Passive Peering....................................................................................................................................187

Maintaining Existing AS Numbers During an AS Migration................................................................................. 187

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 188

Enabling Graceful Restart........................................................................................................................................189

Enabling Neighbor Graceful Restart...................................................................................................................... 190

Filtering on an AS-Path Attribute........................................................................................................................... 190

Regular Expressions as Filters.................................................................................................................................192

Redistributing Routes...............................................................................................................................................193

Enabling Additional Paths........................................................................................................................................ 194

Conguring IP Community Lists............................................................................................................................. 194

Conguring an IP Extended Community List........................................................................................................195

Filtering Routes with Community Lists..................................................................................................................196

Manipulating the COMMUNITY Attribute............................................................................................................. 197

Changing MED Attributes....................................................................................................................................... 198

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 198

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 199

Contents

7

Changing the WEIGHT Attribute...........................................................................................................................200

Enabling Multipath...................................................................................................................................................200

Filtering BGP Routes...............................................................................................................................................200

Filtering BGP Routes Using Route Maps..............................................................................................................202

Filtering BGP Routes Using AS-PATH Information..............................................................................................202

Conguring BGP Route Reectors........................................................................................................................203

Aggregating Routes.................................................................................................................................................204

Conguring BGP Confederations.......................................................................................................................... 204

Enabling Route Flap Dampening............................................................................................................................ 205

Changing BGP Timers.............................................................................................................................................207

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................207

Enabling or disabling BGP neighbors.....................................................................................................................208

Route Map Continue................................................................................................................................................210

Enabling MBGP Congurations.................................................................................................................................... 210

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor...........................................211

BGP Regular Expression Optimization..........................................................................................................................211

Debugging BGP...............................................................................................................................................................211

Storing Last and Bad PDUs.....................................................................................................................................212

Capturing PDUs........................................................................................................................................................213

PDU Counters...........................................................................................................................................................214

Sample Congurations...................................................................................................................................................214

10 Content Addressable Memory (CAM)....................................................................................................... 221

CAM Allocation............................................................................................................................................................... 221

Test CAM Usage............................................................................................................................................................ 223

View CAM-ACL Settings.............................................................................................................................................. 223

View CAM Usage...........................................................................................................................................................225

CAM Optimization......................................................................................................................................................... 225

Troubleshoot CAM Proling..........................................................................................................................................225

CAM Prole Mismatches........................................................................................................................................225

QoS CAM Region Limitation...................................................................................................................................226

11 Control Plane Policing (CoPP).................................................................................................................. 227

Congure Control Plane Policing................................................................................................................................. 228

Conguring CoPP for Protocols............................................................................................................................ 229

Conguring CoPP for CPU Queues....................................................................................................................... 231

CoPP for OSPFv3 Packets.....................................................................................................................................232

Conguring CoPP for OSPFv3.............................................................................................................................. 235

Displaying CoPP Conguration ............................................................................................................................. 235

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 238

DHCP Packet Format and Options............................................................................................................................. 238

Assign an IP Address using DHCP...............................................................................................................................240

Implementation Information...........................................................................................................................................241

Congure the System to be a DHCP Server.............................................................................................................. 241

Conguring the Server for Automatic Address Allocation..................................................................................242

8

Contents

Specifying a Default Gateway................................................................................................................................ 243

Congure a Method of Hostname Resolution......................................................................................................243

Using DNS for Address Resolution........................................................................................................................ 243

Using NetBIOS WINS for Address Resolution......................................................................................................244

Creating Manual Binding Entries............................................................................................................................244

Debugging the DHCP Server................................................................................................................................. 244

Using DHCP Clear Commands...............................................................................................................................245

Congure the System to be a Relay Agent................................................................................................................ 245

Congure the System to be a DHCP Client............................................................................................................... 247

Conguring the DHCP Client System................................................................................................................... 247

DHCP Client on a Management Interface............................................................................................................ 248

DHCP Client Operation with Other Features.......................................................................................................249

Congure the System for User Port Stacking (Option 230)................................................................................... 250

Congure Secure DHCP...............................................................................................................................................250

Option 82..................................................................................................................................................................250

DHCP Snooping........................................................................................................................................................251

Drop DHCP Packets on Snooped VLANs Only....................................................................................................254

Dynamic ARP Inspection........................................................................................................................................ 255

Conguring Dynamic ARP Inspection................................................................................................................... 256

Source Address Validation.............................................................................................................................................257

Enabling IP Source Address Validation.................................................................................................................. 257

DHCP MAC Source Address Validation................................................................................................................ 258

Enabling IP+MAC Source Address Validation.......................................................................................................258

Viewing the Number of SAV Dropped Packets................................................................................................... 259

Clearing the Number of SAV Dropped Packets...................................................................................................259

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 260

ECMP for Flow-Based Anity.....................................................................................................................................260

Conguring the Hash Algorithm............................................................................................................................ 260

Enabling Deterministic ECMP Next Hop.............................................................................................................. 260

Conguring the Hash Algorithm Seed................................................................................................................... 261

Link Bundle Monitoring.................................................................................................................................................. 261

Managing ECMP Group Paths...............................................................................................................................262

Creating an ECMP Group Bundle.......................................................................................................................... 262

Modifying the ECMP Group Threshold.................................................................................................................262

14 FIPS Cryptography...................................................................................................................................264

Conguration Tasks....................................................................................................................................................... 264

Preparing the System....................................................................................................................................................264

Enabling FIPS Mode......................................................................................................................................................265

Generating Host-Keys...................................................................................................................................................265

Monitoring FIPS Mode Status..................................................................................................................................... 265

Disabling FIPS Mode..................................................................................................................................................... 266

15 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 267

Protocol Overview......................................................................................................................................................... 267

Contents

9

Ring Status............................................................................................................................................................... 268

Multiple FRRP Rings............................................................................................................................................... 268

Important FRRP Points...........................................................................................................................................269

Important FRRP Concepts..................................................................................................................................... 270

Implementing FRRP........................................................................................................................................................271

FRRP Conguration....................................................................................................................................................... 271

Creating the FRRP Group........................................................................................................................................271

Conguring the Control VLAN............................................................................................................................... 272

Conguring and Adding the Member VLANs.......................................................................................................273

Setting the FRRP Timers........................................................................................................................................ 274

Clearing the FRRP Counters.................................................................................................................................. 274

Viewing the FRRP Conguration........................................................................................................................... 274

Viewing the FRRP Information...............................................................................................................................274

Troubleshooting FRRP...................................................................................................................................................275

Conguration Checks..............................................................................................................................................275

Sample Conguration and Topology............................................................................................................................275

16 GARP VLAN Registration Protocol (GVRP).............................................................................................. 277

Important Points to Remember....................................................................................................................................277

Congure GVRP.............................................................................................................................................................278

Related Conguration Tasks................................................................................................................................... 278

Enabling GVRP Globally................................................................................................................................................ 279

Enabling GVRP on a Layer 2 Interface........................................................................................................................ 279

Congure GVRP Registration.......................................................................................................................................279

Congure a GARP Timer.............................................................................................................................................. 280

RPM Redundancy..........................................................................................................................................................280

17 High Availability (HA)................................................................................................................................282

Component Redundancy.............................................................................................................................................. 282

Automatic and Manual Stack Unit Failover...........................................................................................................282

Synchronization between Management and Standby Units.............................................................................. 283

Forcing a Stack Unit Failover................................................................................................................................. 283

Disabling Auto-Reboot............................................................................................................................................ 284

Manually Synchronizing Management and Standby Units................................................................................. 284

Pre-Conguring a Stack Unit Slot............................................................................................................................... 284

Removing a Provisioned Logical Stack Unit............................................................................................................... 285

Hitless Behavior............................................................................................................................................................. 285

Graceful Restart.............................................................................................................................................................285

Software Resiliency....................................................................................................................................................... 286

Software Component Health Monitoring............................................................................................................. 286

System Health Monitoring......................................................................................................................................286

Failure and Event Logging.......................................................................................................................................286

Hot-Lock Behavior......................................................................................................................................................... 287

18 Internet Group Management Protocol (IGMP)......................................................................................... 288

IGMP Implementation Information...............................................................................................................................288

10

Contents

IGMP Protocol Overview..............................................................................................................................................288

IGMP Version 2........................................................................................................................................................ 288

IGMP Version 3........................................................................................................................................................290

Congure IGMP............................................................................................................................................................. 293

Related Conguration Tasks...................................................................................................................................293

Viewing IGMP Enabled Interfaces............................................................................................................................... 294

Selecting an IGMP Version...........................................................................................................................................294

Viewing IGMP Groups...................................................................................................................................................294

Adjusting Timers............................................................................................................................................................ 295

Adjusting Query and Response Timers................................................................................................................. 295

Preventing a Host from Joining a Group.................................................................................................................... 296

Enabling IGMP Immediate-Leave................................................................................................................................ 299

IGMP Snooping..............................................................................................................................................................299

IGMP Snooping Implementation Information....................................................................................................... 299

Conguring IGMP Snooping...................................................................................................................................299

Removing a Group-Port Association.....................................................................................................................300

Disabling Multicast Flooding...................................................................................................................................300

Specifying a Port as Connected to a Multicast Router.......................................................................................301

Conguring the Switch as Querier.........................................................................................................................301

Fast Convergence after MSTP Topology Changes...................................................................................................302

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................302

Protocol Separation.................................................................................................................................................302

Enabling and Disabling Management Egress Interface Selection...................................................................... 303

Handling of Management Route Conguration................................................................................................... 304

Handling of Switch-Initiated Trac....................................................................................................................... 305

Handling of Switch-Destined Trac..................................................................................................................... 305

Handling of Transit Trac (Trac Separation).................................................................................................... 306

Mapping of Management Applications and Trac Type.....................................................................................306

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 307

Behavior of Various Applications for Switch-Destined Trac .......................................................................... 308

Interworking of EIS With Various Applications.....................................................................................................309

Designating a Multicast Router Interface...................................................................................................................309

19 Interfaces.................................................................................................................................................. 311

Basic Interface Conguration........................................................................................................................................ 311

Advanced Interface Conguration................................................................................................................................ 311

Interface Types................................................................................................................................................................312

Optional Modules............................................................................................................................................................312

View Basic Interface Information..................................................................................................................................313

Resetting an Interface to its Factory Default State....................................................................................................314

Enabling Energy Ecient Ethernet.............................................................................................................................. 315

View EEE Information.................................................................................................................................................... 315

Clear EEE Counters........................................................................................................................................................319

Enabling a Physical Interface........................................................................................................................................320

Physical Interfaces.........................................................................................................................................................320

Conguration Task List for Physical Interfaces.....................................................................................................321

Contents

11

Overview of Layer Modes....................................................................................................................................... 321

Conguring Layer 2 (Data Link) Mode.................................................................................................................. 321

Conguring Layer 2 (Interface) Mode...................................................................................................................322

Conguring Layer 3 (Network) Mode...................................................................................................................322

Conguring Layer 3 (Interface) Mode...................................................................................................................323

Egress Interface Selection (EIS)..................................................................................................................................323

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

Conguring EIS........................................................................................................................................................ 324

Management Interfaces................................................................................................................................................324

Conguring Management Interfaces.....................................................................................................................324

Conguring a Management Interface on an Ethernet Port................................................................................326

VLAN Interfaces.............................................................................................................................................................326

Loopback Interfaces...................................................................................................................................................... 327

Null Interfaces.................................................................................................................................................................327

Port Channel Interfaces................................................................................................................................................ 327

Port Channel Denition and Standards.................................................................................................................328

Port Channel Benets............................................................................................................................................. 328

Port Channel Implementation.................................................................................................................................328

Interfaces in Port Channels.................................................................................................................................... 329

Conguration Tasks for Port Channel Interfaces.................................................................................................329

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

Adding a Physical Interface to a Port Channel.....................................................................................................330

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

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 332

Adding or Removing a Port Channel from a VLAN............................................................................................. 332

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

Deleting or Disabling a Port Channel..................................................................................................................... 334

Load Balancing Through Port Channels................................................................................................................334

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

Changing the Hash Algorithm................................................................................................................................335

Bulk Conguration......................................................................................................................................................... 336

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

Bulk Conguration Examples..................................................................................................................................336

Dening Interface Range Macros................................................................................................................................ 338

Dene the Interface Range.................................................................................................................................... 338

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

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

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

Link Dampening..............................................................................................................................................................340

Important Points to Remember............................................................................................................................. 340

Enabling Link Dampening.........................................................................................................................................341

Link Bundle Monitoring................................................................................................................................................. 342

Using Ethernet Pause Frames for Flow Control........................................................................................................ 343

Enabling Pause Frames........................................................................................................................................... 343

Congure the MTU Size on an Interface....................................................................................................................344

12

Contents

Port-Pipes.......................................................................................................................................................................345

Auto-Negotiation on Ethernet Interfaces...................................................................................................................345

Setting the Speed of Ethernet Interfaces............................................................................................................ 345

Set Auto-Negotiation Options................................................................................................................................347

Provisioning Combo Ports............................................................................................................................................ 348

View Advanced Interface Information.........................................................................................................................348

Conguring the Interface Sampling Size.............................................................................................................. 349

Conguring the Trac Sampling Size Globally.......................................................................................................... 350

Dynamic Counters.......................................................................................................................................................... 351

Clearing Interface Counters....................................................................................................................................352

20 Internet Protocol Security (IPSec).......................................................................................................... 353

Conguring IPSec .........................................................................................................................................................353

21 IPv4 Routing............................................................................................................................................ 355

IP Addresses...................................................................................................................................................................356

Implementation Information................................................................................................................................... 356

Conguration Tasks for IP Addresses......................................................................................................................... 356

Assigning IP Addresses to an Interface.......................................................................................................................356

Conguring Static Routes.............................................................................................................................................357

Congure Static Routes for the Management Interface..........................................................................................358

IPv4 Path MTU Discovery Overview.......................................................................................................................... 359

Using the Congured Source IP Address in ICMP Messages..................................................................................359

Conguring the ICMP Source Interface............................................................................................................... 359

Conguring the Duration to Establish a TCP Connection........................................................................................ 360

Enabling Directed Broadcast........................................................................................................................................ 360

Resolution of Host Names............................................................................................................................................360

Enabling Dynamic Resolution of Host Names.............................................................................................................361

Specifying the Local System Domain and a List of Domains.................................................................................... 361

Conguring DNS with Traceroute................................................................................................................................362

ARP................................................................................................................................................................................. 362

Conguration Tasks for ARP........................................................................................................................................ 363

Conguring Static ARP Entries....................................................................................................................................363

Enabling Proxy ARP.......................................................................................................................................................363

Clearing ARP Cache......................................................................................................................................................364

ARP Learning via Gratuitous ARP................................................................................................................................364

Enabling ARP Learning via Gratuitous ARP................................................................................................................364

ARP Learning via ARP Request................................................................................................................................... 364

Conguring ARP Retries...............................................................................................................................................365

ICMP............................................................................................................................................................................... 366

Conguration Tasks for ICMP...................................................................................................................................... 366

Enabling ICMP Unreachable Messages...................................................................................................................... 366

UDP Helper.....................................................................................................................................................................366

Congure UDP Helper............................................................................................................................................ 366

Important Points to Remember..............................................................................................................................367

Enabling UDP Helper..................................................................................................................................................... 367

Contents

13

Conguring a Broadcast Address................................................................................................................................ 367

Congurations Using UDP Helper............................................................................................................................... 368

UDP Helper with Broadcast-All Addresses.................................................................................................................368

UDP Helper with Subnet Broadcast Addresses.........................................................................................................369

UDP Helper with Congured Broadcast Addresses..................................................................................................369

UDP Helper with No Congured Broadcast Addresses............................................................................................370

Troubleshooting UDP Helper........................................................................................................................................ 370

22 IPv6 Routing.............................................................................................................................................371

Protocol Overview..........................................................................................................................................................371

Extended Address Space........................................................................................................................................ 372

Stateless Autoconguration....................................................................................................................................372

IPv6 Headers............................................................................................................................................................ 372

IPv6 Header Fields...................................................................................................................................................373

Extension Header Fields..........................................................................................................................................375

Addressing................................................................................................................................................................ 376

Implementing IPv6 with Dell Networking OS............................................................................................................. 377

ICMPv6........................................................................................................................................................................... 378

Path MTU Discovery..................................................................................................................................................... 379

IPv6 Neighbor Discovery.............................................................................................................................................. 379

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................380

Conguration Task List for IPv6 RDNSS.................................................................................................................... 380

Conguring the IPv6 Recursive DNS Server....................................................................................................... 380

Debugging IPv6 RDNSS Information Sent to the Host ......................................................................................381

Displaying IPv6 RDNSS Information......................................................................................................................382

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 382

Conguration Tasks for IPv6........................................................................................................................................ 383

Adjusting Your CAM-Prole....................................................................................................................................383

Assigning an IPv6 Address to an Interface...........................................................................................................384

Assigning a Static IPv6 Route................................................................................................................................384

Conguring Telnet with IPv6..................................................................................................................................385

SNMP over IPv6......................................................................................................................................................385

Displaying IPv6 Information....................................................................................................................................385

Displaying an IPv6 Interface Information.............................................................................................................. 386

Showing IPv6 Routes..............................................................................................................................................386

Showing the Running-Conguration for an Interface......................................................................................... 388

Clearing IPv6 Routes...............................................................................................................................................388

Disabling ND Entry Timeout................................................................................................................................... 388

Conguring IPv6 RA Guard.......................................................................................................................................... 389

Conguring IPv6 RA Guard on an Interface.........................................................................................................390

Monitoring IPv6 RA Guard...................................................................................................................................... 391

23 iSCSI Optimization...................................................................................................................................392

iSCSI Optimization Overview....................................................................................................................................... 392

Monitoring iSCSI Trac Flows...............................................................................................................................394

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 394

14

Contents

Information Monitored in iSCSI Trac Flows.......................................................................................................394

Detection and Auto-Conguration for Dell EqualLogic Arrays...........................................................................395

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................395

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................396

Enable and Disable iSCSI Optimization.................................................................................................................396

Default iSCSI Optimization Values............................................................................................................................... 397

iSCSI Optimization Prerequisites..................................................................................................................................397

Conguring iSCSI Optimization....................................................................................................................................397

Displaying iSCSI Optimization Information................................................................................................................. 399

24 Intermediate System to Intermediate System........................................................................................... 401

IS-IS Protocol Overview................................................................................................................................................ 401

IS-IS Addressing............................................................................................................................................................. 401

Multi-Topology IS-IS...................................................................................................................................................... 402

Transition Mode....................................................................................................................................................... 402

Interface Support.....................................................................................................................................................403

Adjacencies...............................................................................................................................................................403

Graceful Restart.............................................................................................................................................................403

Timers........................................................................................................................................................................403

Implementation Information..........................................................................................................................................403

Conguration Information.............................................................................................................................................404

Conguration Tasks for IS-IS................................................................................................................................. 405

Conguring the Distance of a Route......................................................................................................................412

Changing the IS-Type...............................................................................................................................................413

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

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

Conguring Authentication Passwords..................................................................................................................417

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

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

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

Congure Metric Values................................................................................................................................................ 419

Maximum Values in the Routing Table................................................................................................................... 419

Change the IS-IS Metric Style in One Level Only.................................................................................................419

Leaks from One Level to Another...........................................................................................................................421

Sample Congurations.................................................................................................................................................. 422

25 Link Aggregation Control Protocol (LACP).............................................................................................. 424

Introduction to Dynamic LAGs and LACP...................................................................................................................424

Important Points to Remember..............................................................................................................................424

LACP Modes............................................................................................................................................................ 425

Conguring LACP Commands............................................................................................................................... 425

LACP Conguration Tasks............................................................................................................................................426

Creating a LAG.........................................................................................................................................................426

Conguring the LAG Interfaces as Dynamic........................................................................................................ 426

Setting the LACP Long Timeout............................................................................................................................427

Monitoring and Debugging LACP.......................................................................................................................... 427

Contents

15

Shared LAG State Tracking.......................................................................................................................................... 428

Conguring Shared LAG State Tracking............................................................................................................... 428

Important Points about Shared LAG State Tracking...........................................................................................430

LACP Basic Conguration Example............................................................................................................................ 430

Congure a LAG on ALPHA................................................................................................................................... 430

26 Layer 2.....................................................................................................................................................439

Manage the MAC Address Table................................................................................................................................. 439

Clearing the MAC Address Table........................................................................................................................... 439

Setting the Aging Time for Dynamic Entries........................................................................................................439

Conguring a Static MAC Address........................................................................................................................440

Displaying the MAC Address Table........................................................................................................................ 440

MAC Learning Limit.......................................................................................................................................................440

Setting the MAC Learning Limit............................................................................................................................. 441

mac learning-limit Dynamic..................................................................................................................................... 441

mac learning-limit mac-address-sticky.................................................................................................................. 441

mac learning-limit station-move.............................................................................................................................442

mac learning-limit no-station-move.......................................................................................................................442

Learning Limit Violation Actions............................................................................................................................. 442

Setting Station Move Violation Actions................................................................................................................ 443

Recovering from Learning Limit and Station Move Violations........................................................................... 443

Disabling MAC Address Learning on the System.................................................................................................444

NIC Teaming................................................................................................................................................................... 444

Congure Redundant Pairs...........................................................................................................................................445

Important Points about Conguring Redundant Pairs.........................................................................................447

Far-End Failure Detection............................................................................................................................................. 448

FEFD State Changes...............................................................................................................................................449

Conguring FEFD.................................................................................................................................................... 450

Enabling FEFD on an Interface.............................................................................................................................. 450

Debugging FEFD.......................................................................................................................................................451

27 Link Layer Discovery Protocol (LLDP)......................................................................................................453

802.1AB (LLDP) Overview............................................................................................................................................453

Protocol Data Units................................................................................................................................................. 453

Optional TLVs................................................................................................................................................................. 454

Management TLVs.................................................................................................................................................. 454

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 456

TIA Organizationally Specic TLVs........................................................................................................................456

Congure LLDP............................................................................................................................................................. 460

Related Conguration Tasks...................................................................................................................................460

Important Points to Remember............................................................................................................................. 460

LLDP Compatibility...................................................................................................................................................461

CONFIGURATION versus INTERFACE Congurations.............................................................................................461

Enabling LLDP.................................................................................................................................................................461

Disabling and Undoing LLDP.................................................................................................................................. 462

Enabling LLDP on Management Ports........................................................................................................................462

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Contents

Disabling and Undoing LLDP on Management Ports.......................................................................................... 462

Advertising TLVs............................................................................................................................................................ 462

Viewing the LLDP Conguration................................................................................................................................. 463

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 464

Conguring LLDPDU Intervals.....................................................................................................................................465

Conguring Transmit and Receive Mode....................................................................................................................466

Conguring the Time to Live Value............................................................................................................................. 466

Debugging LLDP............................................................................................................................................................ 467

Relevant Management Objects................................................................................................................................... 468

28 Microsoft Network Load Balancing.......................................................................................................... 473

NLB Unicast Mode Scenario........................................................................................................................................ 473

NLB Multicast Mode Scenario..................................................................................................................................... 473

Limitations of the NLB Feature.................................................................................................................................... 474

Microsoft Clustering...................................................................................................................................................... 474

Enable and Disable VLAN Flooding .............................................................................................................................474

Conguring a Switch for NLB ..................................................................................................................................... 474

Enabling a Switch for Multicast NLB.................................................................................................................... 475

29 Multicast Source Discovery Protocol (MSDP)......................................................................................... 476

Protocol Overview......................................................................................................................................................... 476

Anycast RP..................................................................................................................................................................... 477

Implementation Information..........................................................................................................................................478

Congure Multicast Source Discovery Protocol........................................................................................................ 478

Related Conguration Tasks................................................................................................................................... 478

Enable MSDP................................................................................................................................................................. 482

Manage the Source-Active Cache.............................................................................................................................. 483

Viewing the Source-Active Cache.........................................................................................................................483

Limiting the Source-Active Cache.........................................................................................................................483

Clearing the Source-Active Cache........................................................................................................................ 484

Enabling the Rejected Source-Active Cache....................................................................................................... 484

Accept Source-Active Messages that Fail the RFP Check......................................................................................484

Specifying Source-Active Messages........................................................................................................................... 487

Limiting the Source-Active Messages from a Peer...................................................................................................488

Preventing MSDP from Caching a Local Source.......................................................................................................488

Preventing MSDP from Caching a Remote Source.................................................................................................. 489

Preventing MSDP from Advertising a Local Source..................................................................................................489

Logging Changes in Peership States...........................................................................................................................490

Terminating a Peership..................................................................................................................................................490

Clearing Peer Statistics..................................................................................................................................................491

Debugging MSDP...........................................................................................................................................................491

MSDP with Anycast RP................................................................................................................................................492

Conguring Anycast RP................................................................................................................................................493

Reducing Source-Active Message Flooding.........................................................................................................494

Specifying the RP Address Used in SA Messages.............................................................................................. 494

MSDP Sample Congurations......................................................................................................................................496

Contents

17

30 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 499

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

Spanning Tree Variations.............................................................................................................................................. 500

Implementation Information................................................................................................................................... 500

Congure Multiple Spanning Tree Protocol................................................................................................................500

Related Conguration Tasks....................................................................................................................................501

Enable Multiple Spanning Tree Globally.......................................................................................................................501

Adding and Removing Interfaces................................................................................................................................. 501

Creating Multiple Spanning Tree Instances................................................................................................................ 502

Inuencing MSTP Root Selection................................................................................................................................503

Interoperate with Non-Dell Bridges.............................................................................................................................503

Changing the Region Name or Revision..................................................................................................................... 504

Modifying Global Parameters.......................................................................................................................................504

Modifying the Interface Parameters........................................................................................................................... 505

Conguring an EdgePort.............................................................................................................................................. 506

Flush MAC Addresses after a Topology Change........................................................................................................507

MSTP Sample Congurations......................................................................................................................................507

Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-

CongurationSFTOS Example Running-Conguration.......................................................................................508

Debugging and Verifying MSTP Congurations..........................................................................................................511

31 Multicast Features.................................................................................................................................... 513

Enabling IP Multicast......................................................................................................................................................513

Implementation Information.......................................................................................................................................... 513

Multicast Policies............................................................................................................................................................514

IPv4 Multicast Policies.............................................................................................................................................514

Understanding Multicast Traceroute (mtrace)..................................................................................................... 521

Printing Multicast Traceroute (mtrace) Paths..................................................................................................... 522

Supported Error Codes........................................................................................................................................... 523

mtrace Scenarios..................................................................................................................................................... 524

32 Object Tracking....................................................................................................................................... 530

Object Tracking Overview............................................................................................................................................ 530

Track Layer 2 Interfaces.......................................................................................................................................... 531

Track Layer 3 Interfaces.......................................................................................................................................... 531

Track IPv4 and IPv6 Routes................................................................................................................................... 532

Set Tracking Delays................................................................................................................................................. 533

VRRP Object Tracking............................................................................................................................................ 533

Object Tracking Conguration..................................................................................................................................... 533

Tracking a Layer 2 Interface................................................................................................................................... 533

Tracking a Layer 3 Interface................................................................................................................................... 534

Track an IPv4/IPv6 Route...................................................................................................................................... 536

Displaying Tracked Objects...........................................................................................................................................539

33 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 541

18

Contents

Protocol Overview..........................................................................................................................................................541

Autonomous System (AS) Areas............................................................................................................................ 541

Area Types................................................................................................................................................................ 542

Networks and Neighbors........................................................................................................................................543

Router Types............................................................................................................................................................ 543

Designated and Backup Designated Routers.......................................................................................................545

Link-State Advertisements (LSAs)........................................................................................................................545

Router Priority and Cost.........................................................................................................................................546

OSPF with Dell Networking OS................................................................................................................................... 547

Graceful Restart...................................................................................................................................................... 548

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................549

Multi-Process OSPFv2 with VRF..........................................................................................................................549

OSPF ACK Packing................................................................................................................................................. 549

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 549

Conguration Information.............................................................................................................................................550

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 550

Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 564

Enabling IPv6 Unicast Routing.............................................................................................................................. 565

Applying cost for OSPFv3......................................................................................................................................565

Assigning IPv6 Addresses on an Interface........................................................................................................... 566

Assigning Area ID on an Interface..........................................................................................................................566

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................566

Assigning OSPFv3 Process ID and Router ID to a VRF...................................................................................... 567

Conguring Stub Areas........................................................................................................................................... 567

Conguring Passive-Interface................................................................................................................................568

Redistributing Routes..............................................................................................................................................568

Conguring a Default Route...................................................................................................................................568

Enabling OSPFv3 Graceful Restart.......................................................................................................................569

OSPFv3 Authentication Using IPsec......................................................................................................................571

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

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

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

Implementing PBR.........................................................................................................................................................580

Conguration Task List for Policy-based Routing......................................................................................................580

PBR Exceptions (Permit)....................................................................................................................................... 580

Create a Redirect List.............................................................................................................................................. 581

Create a Rule for a Redirect-list............................................................................................................................. 581

Apply a Redirect-list to an Interface using a Redirect-group............................................................................. 583

Sample Conguration....................................................................................................................................................585

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View Redirect-List GOLD..... 586

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

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

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

Requesting Multicast Trac.................................................................................................................................. 589

Contents

19

Refuse Multicast Trac..........................................................................................................................................590

Send Multicast Trac.............................................................................................................................................590

Conguring PIM-SM.....................................................................................................................................................590

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

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

Conguring S,G Expiry Timers......................................................................................................................................591

Conguring a Static Rendezvous Point...................................................................................................................... 592

Overriding Bootstrap Router Updates.................................................................................................................. 592

Conguring a Designated Router.................................................................................................................................593

Creating Multicast Boundaries and Domains............................................................................................................. 593

36 PIM Source-Specic Mode (PIM-SSM).................................................................................................. 594

Implementation Information..........................................................................................................................................594

Important Points to Remember............................................................................................................................. 594

Congure PIM-SSM......................................................................................................................................................595

Related Conguration Tasks...................................................................................................................................595

Enabling PIM-SSM........................................................................................................................................................595

Use PIM-SSM with IGMP Version 2 Hosts................................................................................................................595

Conguring PIM-SSM with IGMPv2.................................................................................................................... 596

Electing an RP using the BSR Mechanism.................................................................................................................597

Enabling RP to Server Specic Multicast Groups............................................................................................... 597

37 Power over Ethernet (PoE)..................................................................................................................... 599

Conguring PoE or PoE+............................................................................................................................................. 599

Enable PoE/PoE+....................................................................................................................................................600

Upgrading the PoE Controller................................................................................................................................600

Manage Ports using Power Priority and Power Budget............................................................................................601

Determine the Power Priority................................................................................................................................. 601

Manage Inline Power...............................................................................................................................................602

Set the Threshold Limit for the PoE Power Budget........................................................................................... 602

Manage Power Priorities........................................................................................................................................ 603

Power Allocation to Ports.......................................................................................................................................603

Power Allocation to Additional Ports.....................................................................................................................604

Manage Legacy Devices...............................................................................................................................................604

Suspend Power Delivery on a Port..............................................................................................................................604

Restore Power Delivery on a Port............................................................................................................................... 605

Display the Power Details............................................................................................................................................. 605

38 Port Monitoring....................................................................................................................................... 606

Important Points to Remember................................................................................................................................... 606

Port Monitoring..............................................................................................................................................................607

Conguring Port Monitoring........................................................................................................................................ 609

Conguring Monitor Multicast Queue......................................................................................................................... 610

Enabling Flow-Based Monitoring...................................................................................................................................611

Remote Port Mirroring...................................................................................................................................................612

Remote Port Mirroring Example............................................................................................................................. 612

20

Contents

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