Dell PowerSwitch S6000 ON User manual

Dell Conguration Guide for the S6000–ON

System

9.10(0.0)

Notes, cautions, and warnings

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

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

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

trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective

companies.

2016 - 04

Rev. A00

Contents

1 About this Guide........................................................................................................................................... 31

Audience............................................................................................................................................................................ 31

Conventions.......................................................................................................................................................................31

Related Documents.......................................................................................................................................................... 31

2 Conguration Fundamentals........................................................................................................................ 32

Accessing the Command Line........................................................................................................................................32

CLI Modes.........................................................................................................................................................................32

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

The do Command............................................................................................................................................................ 36

Undoing Commands........................................................................................................................................................ 37

Obtaining Help.................................................................................................................................................................. 37

Entering and Editing Commands....................................................................................................................................38

Command History............................................................................................................................................................38

Filtering show Command Outputs.................................................................................................................................39

Example of the grep Keyword.................................................................................................................................. 39

Multiple Users in Conguration Mode...........................................................................................................................40

3 Getting Started............................................................................................................................................ 41

Console Access................................................................................................................................................................ 42

Serial Console............................................................................................................................................................. 42

Default Conguration...................................................................................................................................................... 43

Conguring a Host Name............................................................................................................................................... 43

Accessing the System Remotely....................................................................................................................................43

Accessing the System Remotely..............................................................................................................................43

Congure the Management Port IP Address......................................................................................................... 44

Congure a Management Route..............................................................................................................................44

Conguring a Username and Password.................................................................................................................. 44

Conguring the Enable Password..................................................................................................................................45

Conguration File Management.....................................................................................................................................45

Copy Files to and from the System......................................................................................................................... 45

Mounting an NFS File System..................................................................................................................................46

Save the Running-Conguration..............................................................................................................................48

Congure the Overload Bit for a Startup Scenario............................................................................................... 48

Viewing Files...............................................................................................................................................................48

Managing the File System.............................................................................................................................................. 49

View Command History.................................................................................................................................................. 50

Upgrading Dell Networking OS...................................................................................................................................... 50

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

Verify Software Images Before Installation....................................................................................................................51

4 Management............................................................................................................................................... 53

Conguring Privilege Levels............................................................................................................................................53

Contents

3

Creating a Custom Privilege Level...........................................................................................................................53

Removing a Command from EXEC Mode.............................................................................................................. 54

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................54

Allowing Access to CONFIGURATION Mode Commands....................................................................................54

Allowing Access to Dierent Modes........................................................................................................................54

Applying a Privilege Level to a Username............................................................................................................... 56

Applying a Privilege Level to a Terminal Line.......................................................................................................... 56

Conguring Logging........................................................................................................................................................ 56

Audit and Security Logs............................................................................................................................................ 57

Conguring Logging Format ...................................................................................................................................58

Setting Up a Secure Connection to a Syslog Server.............................................................................................58

Log Messages in the Internal Buer..............................................................................................................................60

Conguration Task List for System Log Management..........................................................................................60

Disabling System Logging...............................................................................................................................................60

Sending System Messages to a Syslog Server............................................................................................................60

Conguring a UNIX System as a Syslog Server.....................................................................................................60

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

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

Conguring Login Activity Tracking..........................................................................................................................61

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

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

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

Conguring Concurrent Session Limit.....................................................................................................................63

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

Changing System Logging Settings...............................................................................................................................64

Display the Logging Buer and the Logging Conguration........................................................................................65

Conguring a UNIX Logging Facility Level....................................................................................................................66

Synchronizing Log Messages......................................................................................................................................... 67

Enabling Timestamp on Syslog Messages.................................................................................................................... 67

File Transfer Services...................................................................................................................................................... 68

Conguration Task List for File Transfer Services..................................................................................................68

Enabling the FTP Server...........................................................................................................................................68

Conguring FTP Server Parameters....................................................................................................................... 68

Conguring FTP Client Parameters.........................................................................................................................69

Terminal Lines...................................................................................................................................................................69

Denying and Permitting Access to a Terminal Line................................................................................................ 70

Conguring Login Authentication for Terminal Lines..............................................................................................71

Setting Timeout for EXEC Privilege Mode.................................................................................................................... 71

Using Telnet to get to Another Network Device..........................................................................................................72

Lock CONFIGURATION Mode....................................................................................................................................... 72

Viewing the Conguration Lock Status...................................................................................................................73

Reloading the system...................................................................................................................................................... 73

Restoring the Factory Default Settings.........................................................................................................................74

Important Points to Remember................................................................................................................................ 74

Restoring Factory Default Environment Variables................................................................................................. 75

5 802.1X.......................................................................................................................................................... 77

4

Contents

Port-Authentication Process.......................................................................................................................................... 79

EAP over RADIUS......................................................................................................................................................80

Conguring 802.1X...........................................................................................................................................................80

Related Conguration Tasks..................................................................................................................................... 80

Important Points to Remember......................................................................................................................................80

Enabling 802.1X................................................................................................................................................................. 81

Conguring dot1x Prole ................................................................................................................................................82

Conguring MAC addresses for a do1x Prole.............................................................................................................83

Conguring the Static MAB and MAB Prole .............................................................................................................83

Conguring Critical VLAN ..............................................................................................................................................84

Conguring Request Identity Re-Transmissions...........................................................................................................85

Conguring a Quiet Period after a Failed Authentication..................................................................................... 85

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 86

Re-Authenticating a Port................................................................................................................................................ 87

Conguring Timeouts......................................................................................................................................................88

Conguring Dynamic VLAN Assignment with Port Authentication...........................................................................89

Guest and Authentication-Fail VLANs.......................................................................................................................... 90

Conguring a Guest VLAN....................................................................................................................................... 90

Conguring an Authentication-Fail VLAN...............................................................................................................90

6 Access Control Lists (ACLs)........................................................................................................................ 92

IP Access Control Lists (ACLs)...................................................................................................................................... 93

CAM Usage.................................................................................................................................................................93

Implementing ACLs on Dell Networking OS........................................................................................................... 94

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

Conguration Task List for Route Maps..................................................................................................................96

Conguring Match Routes........................................................................................................................................98

Conguring Set Conditions.......................................................................................................................................99

Congure a Route Map for Route Redistribution.................................................................................................100

Congure a Route Map for Route Tagging............................................................................................................ 101

Continue Clause........................................................................................................................................................ 101

IP Fragment Handling..................................................................................................................................................... 101

IP Fragments ACL Examples...................................................................................................................................102

Layer 4 ACL Rules Examples...................................................................................................................................102

Congure a Standard IP ACL........................................................................................................................................103

Conguring a Standard IP ACL Filter.....................................................................................................................104

Congure an Extended IP ACL.....................................................................................................................................105

Conguring Filters with a Sequence Number.......................................................................................................105

Conguring Filters Without a Sequence Number................................................................................................ 106

Congure Layer 2 and Layer 3 ACLs............................................................................................................................107

Assign an IP ACL to an Interface.................................................................................................................................. 107

Applying an IP ACL.........................................................................................................................................................107

Counting ACL Hits....................................................................................................................................................108

Congure Ingress ACLs................................................................................................................................................. 108

Congure Egress ACLs..................................................................................................................................................109

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

IP Prex Lists...................................................................................................................................................................110

Contents

5

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

Conguration Task List for Prex Lists....................................................................................................................111

ACL Resequencing..........................................................................................................................................................114

Resequencing an ACL or Prex List....................................................................................................................... 115

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

Implementation Information..................................................................................................................................... 116

Flow-Based Monitoring Support for ACLs...................................................................................................................116

Behavior of Flow-Based Monitoring........................................................................................................................117

Enabling Flow-Based Monitoring.............................................................................................................................118

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 120

How BFD Works............................................................................................................................................................. 120

BFD Packet Format.................................................................................................................................................. 121

BFD Sessions............................................................................................................................................................ 122

BFD Three-Way Handshake.................................................................................................................................... 123

Session State Changes............................................................................................................................................125

Important Points to Remember.................................................................................................................................... 125

Congure BFD................................................................................................................................................................ 125

Congure BFD for Physical Ports...........................................................................................................................126

Congure BFD for Static Routes............................................................................................................................129

Congure BFD for OSPF..........................................................................................................................................131

Congure BFD for OSPFv3.....................................................................................................................................133

Congure BFD for IS-IS...........................................................................................................................................135

Congure BFD for BGP........................................................................................................................................... 137

Congure BFD for VRRP.........................................................................................................................................144

Conguring Protocol Liveness................................................................................................................................ 146

Troubleshooting BFD................................................................................................................................................146

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................148

Autonomous Systems (AS)........................................................................................................................................... 148

Sessions and Peers........................................................................................................................................................ 150

Establish a Session...................................................................................................................................................150

Route Reectors..............................................................................................................................................................151

BGP Attributes................................................................................................................................................................152

Best Path Selection Criteria....................................................................................................................................152

Weight........................................................................................................................................................................154

Local Preference.......................................................................................................................................................154

Multi-Exit Discriminators (MEDs).......................................................................................................................... 155

Origin..........................................................................................................................................................................156

AS Path......................................................................................................................................................................156

Next Hop................................................................................................................................................................... 157

Multiprotocol BGP.......................................................................................................................................................... 157

Implement BGP with Dell Networking OS...................................................................................................................158

Additional Path (Add-Path) Support......................................................................................................................158

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 158

Ignore Router-ID in Best-Path Calculation............................................................................................................ 159

Four-Byte AS Numbers........................................................................................................................................... 159

6

Contents

AS4 Number Representation.................................................................................................................................. 159

AS Number Migration............................................................................................................................................... 161

BGP4 Management Information Base (MIB)........................................................................................................162

Important Points to Remember.............................................................................................................................. 162

Conguration Information..............................................................................................................................................163

BGP Conguration......................................................................................................................................................... 163

Enabling BGP............................................................................................................................................................ 164

Conguring AS4 Number Representations........................................................................................................... 167

Conguring Peer Groups.........................................................................................................................................168

Conguring BGP Fast Fall-Over..............................................................................................................................171

Conguring Passive Peering....................................................................................................................................172

Maintaining Existing AS Numbers During an AS Migration................................................................................. 173

Allowing an AS Number to Appear in its Own AS Path........................................................................................174

Enabling Graceful Restart........................................................................................................................................175

Enabling Neighbor Graceful Restart.......................................................................................................................176

Filtering on an AS-Path Attribute........................................................................................................................... 176

Regular Expressions as Filters................................................................................................................................. 177

Redistributing Routes...............................................................................................................................................179

Enabling Additional Paths........................................................................................................................................ 179

Conguring IP Community Lists............................................................................................................................. 180

Conguring an IP Extended Community List.........................................................................................................181

Filtering Routes with Community Lists.................................................................................................................. 182

Manipulating the COMMUNITY Attribute.............................................................................................................182

Changing MED Attributes....................................................................................................................................... 184

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 184

Changing the NEXT_HOP Attribute......................................................................................................................185

Changing the WEIGHT Attribute............................................................................................................................185

Enabling Multipath....................................................................................................................................................186

Filtering BGP Routes................................................................................................................................................186

Filtering BGP Routes Using Route Maps...............................................................................................................187

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 188

Conguring BGP Route Reectors........................................................................................................................ 188

Aggregating Routes..................................................................................................................................................189

Conguring BGP Confederations........................................................................................................................... 189

Enabling Route Flap Dampening.............................................................................................................................190

Changing BGP Timers..............................................................................................................................................192

Enabling BGP Neighbor Soft-Reconguration..................................................................................................... 193

Route Map Continue................................................................................................................................................194

Enabling MBGP Congurations.................................................................................................................................... 194

BGP Regular Expression Optimization.........................................................................................................................195

Debugging BGP.............................................................................................................................................................. 195

Storing Last and Bad PDUs.................................................................................................................................... 196

Capturing PDUs........................................................................................................................................................ 197

PDU Counters...........................................................................................................................................................198

Sample Congurations...................................................................................................................................................198

9 Content Addressable Memory (CAM)........................................................................................................204

Contents

7

CAM Allocation.............................................................................................................................................................. 204

Test CAM Usage............................................................................................................................................................206

View CAM Proles.........................................................................................................................................................206

View CAM-ACL Settings...............................................................................................................................................207

View CAM Usage...........................................................................................................................................................208

CAM Optimization......................................................................................................................................................... 209

Troubleshoot CAM Proling..........................................................................................................................................209

CAM Prole Mismatches........................................................................................................................................209

QoS CAM Region Limitation...................................................................................................................................209

Syslog Error When the Table is Full........................................................................................................................210

Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................... 210

Syslog Warning for Discrepancies Between Congured Extended Prexes.....................................................210

Unied Forwarding Table (UFT) Modes...................................................................................................................... 210

Conguring UFT Modes.......................................................................................................................................... 210

10 Control Plane Policing (CoPP).................................................................................................................. 212

Congure Control Plane Policing.................................................................................................................................. 213

Conguring CoPP for Protocols............................................................................................................................. 214

Conguring CoPP for CPU Queues....................................................................................................................... 216

Displaying CoPP Conguration .............................................................................................................................. 217

11 Data Center Bridging (DCB)...................................................................................................................... 219

Ethernet Enhancements in Data Center Bridging...................................................................................................... 219

Priority-Based Flow Control................................................................................................................................... 220

Enhanced Transmission Selection.......................................................................................................................... 221

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................222

Data Center Bridging in a Trac Flow...................................................................................................................223

Enabling Data Center Bridging..................................................................................................................................... 223

DCB Maps and its Attributes..................................................................................................................................224

Data Center Bridging: Default Conguration..............................................................................................................225

Conguring Priority-Based Flow Control....................................................................................................................225

Conguring Lossless Queues................................................................................................................................. 226

Conguring PFC in a DCB Map................................................................................................................................... 228

PFC Conguration Notes........................................................................................................................................228

PFC Prerequisites and Restrictions.......................................................................................................................229

Applying a DCB Map on a Port.................................................................................................................................... 229

Conguring PFC without a DCB Map.........................................................................................................................230

Conguring Lossless QueuesExample:..................................................................................................................230

Priority-Based Flow Control Using Dynamic Buer Method.................................................................................... 231

Pause and Resume of Trac..................................................................................................................................232

Buer Sizes for Lossless or PFC Packets.............................................................................................................232

Behavior of Tagged Packets.........................................................................................................................................232

Conguration Example for DSCP and PFC Priorities................................................................................................233

SNMP Support for PFC and Buer Statistics Tracking............................................................................................233

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................234

PFC and ETS Conguration Examples........................................................................................................................235

Using PFC to Manage Converged Ethernet Trac...................................................................................................235

8

Contents

Operations on Untagged Packets................................................................................................................................235

Generation of PFC for a Priority for Untagged Packets...........................................................................................235

Congure Enhanced Transmission Selection..............................................................................................................235

ETS Prerequisites and Restrictions....................................................................................................................... 236

Creating an ETS Priority Group..............................................................................................................................236

ETS Operation with DCBx...................................................................................................................................... 237

Conguring Bandwidth Allocation for DCBx CIN.................................................................................................237

Conguring ETS in a DCB Map..............................................................................................................................238

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 239

Using ETS to Manage Converged Ethernet Trac...................................................................................................240

Applying DCB Policies in a Switch Stack.................................................................................................................... 240

Congure a DCBx Operation........................................................................................................................................240

DCBx Operation........................................................................................................................................................241

DCBx Port Roles.......................................................................................................................................................241

DCB Conguration Exchange.................................................................................................................................242

Conguration Source Election................................................................................................................................243

Propagation of DCB Information............................................................................................................................243

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 243

DCBx Example..........................................................................................................................................................244

DCBx Prerequisites and Restrictions.....................................................................................................................244

Conguring DCBx....................................................................................................................................................245

Verifying the DCB Conguration..................................................................................................................................248

QoS dot1p Trac Classication and Queue Assignment..........................................................................................256

Conguring the Dynamic Buer Method....................................................................................................................257

Sample DCB Conguration...........................................................................................................................................258

PFC and ETS Conguration Command Examples...............................................................................................259

12 Dynamic Host Conguration Protocol (DHCP).........................................................................................260

DHCP Packet Format and Options............................................................................................................................. 260

Assign an IP Address using DHCP...............................................................................................................................262

Implementation Information..........................................................................................................................................263

Congure the System to be a DHCP Server..............................................................................................................263

Conguring the Server for Automatic Address Allocation..................................................................................264

Specifying a Default Gateway................................................................................................................................265

Congure a Method of Hostname Resolution..................................................................................................... 265

Using DNS for Address Resolution........................................................................................................................265

Using NetBIOS WINS for Address Resolution..................................................................................................... 266

Creating Manual Binding Entries............................................................................................................................266

Debugging the DHCP Server.................................................................................................................................266

Using DHCP Clear Commands...............................................................................................................................267

Congure the System to be a DHCP Client............................................................................................................... 267

Conguring the DHCP Client System................................................................................................................... 267

DHCP Client on a Management Interface............................................................................................................269

DHCP Client Operation with Other Features.......................................................................................................269

Congure the System for User Port Stacking (Option 230)....................................................................................270

Congure Secure DHCP............................................................................................................................................... 270

Option 82.................................................................................................................................................................. 270

Contents

9

DHCP Snooping........................................................................................................................................................271

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 274

Dynamic ARP Inspection.........................................................................................................................................275

Conguring Dynamic ARP Inspection....................................................................................................................276

Source Address Validation.............................................................................................................................................277

Enabling IP Source Address Validation.................................................................................................................. 277

DHCP MAC Source Address Validation.................................................................................................................278

Enabling IP+MAC Source Address Validation.......................................................................................................278

Viewing the Number of SAV Dropped Packets....................................................................................................278

Clearing the Number of SAV Dropped Packets................................................................................................... 279

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 280

ECMP for Flow-Based Anity.....................................................................................................................................280

Conguring the Hash Algorithm............................................................................................................................ 280

Enabling Deterministic ECMP Next Hop.............................................................................................................. 280

Conguring the Hash Algorithm Seed................................................................................................................... 281

Link Bundle Monitoring.................................................................................................................................................. 281

Managing ECMP Group Paths...............................................................................................................................282

Creating an ECMP Group Bundle.......................................................................................................................... 282

Modifying the ECMP Group Threshold.................................................................................................................282

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................283

Support for ECMP in host table............................................................................................................................ 283

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 284

14 FIP Snooping............................................................................................................................................285

Fibre Channel over Ethernet........................................................................................................................................ 285

Ensure Robustness in a Converged Ethernet Network............................................................................................ 285

FIP Snooping on Ethernet Bridges.............................................................................................................................. 287

Using FIP Snooping....................................................................................................................................................... 289

FIP Snooping Prerequisites.....................................................................................................................................289

Important Points to Remember............................................................................................................................. 289

Enabling the FCoE Transit Feature........................................................................................................................290

Enable FIP Snooping on VLANs.............................................................................................................................290

Congure the FC-MAP Value................................................................................................................................. 291

Congure a Port for a Bridge-to-Bridge Link........................................................................................................291

Congure a Port for a Bridge-to-FCF Link............................................................................................................291

Impact on Other Software Features......................................................................................................................291

FIP Snooping Restrictions...................................................................................................................................... 292

Conguring FIP Snooping.......................................................................................................................................292

Displaying FIP Snooping Information...........................................................................................................................293

FCoE Transit Conguration Example...........................................................................................................................298

15 Flex Hash and Optimized Boot-Up........................................................................................................... 300

Flex Hash Capability Overview.................................................................................................................................... 300

Conguring the Flex Hash Mechanism.......................................................................................................................300

Conguring Fast Boot and LACP Fast Switchover....................................................................................................301

Optimizing the Boot Time............................................................................................................................................. 301

10

Contents

Booting Process When Optimized Boot Time Mechanism is Enabled...............................................................301

Guidelines for Conguring Optimized Booting Mechanism................................................................................302

Interoperation of Applications with Fast Boot and System States..........................................................................303

LACP and IPv4 Routing.......................................................................................................................................... 303

LACP and IPv6 Routing.......................................................................................................................................... 303

BGP Graceful Restart............................................................................................................................................. 304

Cold Boot Caused by Power Cycling the System............................................................................................... 304

Unexpected Reload of the System........................................................................................................................304

Software Upgrade................................................................................................................................................... 304

LACP Fast Switchover............................................................................................................................................304

Changes to BGP Multipath.................................................................................................................................... 305

Delayed Installation of ECMP Routes Into BGP...................................................................................................305

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 305

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces......................................................................................306

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 307

Protocol Overview......................................................................................................................................................... 307

Ring Status............................................................................................................................................................... 308

Multiple FRRP Rings............................................................................................................................................... 308

Important FRRP Points...........................................................................................................................................309

Important FRRP Concepts......................................................................................................................................310

Implementing FRRP........................................................................................................................................................ 311

FRRP Conguration........................................................................................................................................................ 311

Creating the FRRP Group........................................................................................................................................ 311

Conguring the Control VLAN.................................................................................................................................311

Conguring and Adding the Member VLANs....................................................................................................... 312

Setting the FRRP Timers.........................................................................................................................................313

Clearing the FRRP Counters...................................................................................................................................314

Viewing the FRRP Conguration............................................................................................................................314

Viewing the FRRP Information............................................................................................................................... 314

Troubleshooting FRRP................................................................................................................................................... 314

Conguration Checks...............................................................................................................................................314

Sample Conguration and Topology.............................................................................................................................315

17 GARP VLAN Registration Protocol (GVRP)...............................................................................................317

Important Points to Remember.................................................................................................................................... 317

Congure GVRP............................................................................................................................................................. 318

Related Conguration Tasks....................................................................................................................................318

Enabling GVRP Globally.................................................................................................................................................318

Enabling GVRP on a Layer 2 Interface.........................................................................................................................319

Congure GVRP Registration....................................................................................................................................... 319

Congure a GARP Timer.............................................................................................................................................. 320

18 Internet Group Management Protocol (IGMP).......................................................................................... 321

IGMP Implementation Information............................................................................................................................... 321

IGMP Protocol Overview...............................................................................................................................................321

IGMP Version 2.........................................................................................................................................................321

Contents

11

IGMP Version 3........................................................................................................................................................ 323

Congure IGMP............................................................................................................................................................. 325

Related Conguration Tasks...................................................................................................................................326

Viewing IGMP Enabled Interfaces............................................................................................................................... 326

Selecting an IGMP Version...........................................................................................................................................326

Viewing IGMP Groups................................................................................................................................................... 327

Adjusting Timers.............................................................................................................................................................327

Adjusting Query and Response Timers..................................................................................................................327

Enabling IGMP Immediate-Leave.................................................................................................................................328

IGMP Snooping..............................................................................................................................................................328

IGMP Snooping Implementation Information....................................................................................................... 328

Conguring IGMP Snooping...................................................................................................................................328

Removing a Group-Port Association.....................................................................................................................329

Disabling Multicast Flooding...................................................................................................................................329

Specifying a Port as Connected to a Multicast Router...................................................................................... 330

Conguring the Switch as Querier........................................................................................................................ 330

Fast Convergence after MSTP Topology Changes....................................................................................................331

Egress Interface Selection (EIS) for HTTP and IGMP Applications.........................................................................331

Protocol Separation..................................................................................................................................................331

Enabling and Disabling Management Egress Interface Selection...................................................................... 332

Handling of Management Route Conguration................................................................................................... 333

Handling of Switch-Initiated Trac....................................................................................................................... 334

Handling of Switch-Destined Trac......................................................................................................................334

Handling of Transit Trac (Trac Separation).................................................................................................... 335

Mapping of Management Applications and Trac Type.....................................................................................335

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 336

Behavior of Various Applications for Switch-Destined Trac ...........................................................................337

Interworking of EIS With Various Applications.....................................................................................................338

Designating a Multicast Router Interface................................................................................................................... 338

19 Interfaces................................................................................................................................................. 339

Basic Interface Conguration.......................................................................................................................................339

Advanced Interface Conguration...............................................................................................................................339

Interface Types...............................................................................................................................................................340

View Basic Interface Information.................................................................................................................................340

Resetting an Interface to its Factory Default State...................................................................................................342

Enabling a Physical Interface........................................................................................................................................342

Physical Interfaces.........................................................................................................................................................343

Conguration Task List for Physical Interfaces.................................................................................................... 343

40G to 1G Breakout Cable Adaptor....................................................................................................................... 343

Overview of Layer Modes.......................................................................................................................................344

Conguring Layer 2 (Data Link) Mode..................................................................................................................344

Conguring Layer 2 (Interface) Mode.................................................................................................................. 345

Conguring Layer 3 (Network) Mode...................................................................................................................345

Conguring Layer 3 (Interface) Mode.................................................................................................................. 345

Egress Interface Selection (EIS)..................................................................................................................................346

Important Points to Remember............................................................................................................................. 346

12

Contents

Conguring EIS........................................................................................................................................................ 346

Management Interfaces................................................................................................................................................347

Conguring Management Interfaces.....................................................................................................................347

Conguring a Management Interface on an Ethernet Port................................................................................349

VLAN Interfaces............................................................................................................................................................ 349

Loopback Interfaces......................................................................................................................................................350

Null Interfaces................................................................................................................................................................ 350

Port Channel Interfaces.................................................................................................................................................351

Port Channel Denition and Standards..................................................................................................................351

Port Channel Benets..............................................................................................................................................351

Port Channel Implementation................................................................................................................................. 351

Interfaces in Port Channels.................................................................................................................................... 352

Conguration Tasks for Port Channel Interfaces.................................................................................................352

Creating a Port Channel..........................................................................................................................................352

Adding a Physical Interface to a Port Channel.....................................................................................................353

Reassigning an Interface to a New Port Channel................................................................................................354

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 355

Adding or Removing a Port Channel from a VLAN............................................................................................. 355

Assigning an IP Address to a Port Channel.......................................................................................................... 357

Deleting or Disabling a Port Channel..................................................................................................................... 357

Load Balancing Through Port Channels................................................................................................................357

Changing the Hash Algorithm................................................................................................................................ 357

Bulk Conguration......................................................................................................................................................... 358

Interface Range....................................................................................................................................................... 358

Bulk Conguration Examples..................................................................................................................................359

Dening Interface Range Macros................................................................................................................................360

Dene the Interface Range..................................................................................................................................... 361

Choosing an Interface-Range Macro.....................................................................................................................361

Monitoring and Maintaining Interfaces........................................................................................................................ 361

Maintenance Using TDR......................................................................................................................................... 362

Splitting 40G Ports without Reload.............................................................................................................................363

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 364

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................365

Important Points to Remember............................................................................................................................. 365

Example Scenarios.................................................................................................................................................. 366

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................367

Link Dampening..............................................................................................................................................................367

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

Enabling Link Dampening........................................................................................................................................ 367

Link Bundle Monitoring................................................................................................................................................. 369

Using Ethernet Pause Frames for Flow Control........................................................................................................ 369

Enabling Pause Frames........................................................................................................................................... 370

Congure the MTU Size on an Interface.....................................................................................................................371

Port-Pipes........................................................................................................................................................................371

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 372

Setting the Speed and Duplex Mode of Ethernet Interfaces.............................................................................372

Set Auto-Negotiation Options................................................................................................................................373

Contents

13

View Advanced Interface Information......................................................................................................................... 374

Conguring the Interface Sampling Size...............................................................................................................375

Dynamic Counters..........................................................................................................................................................376

Clearing Interface Counters....................................................................................................................................376

Compressing Conguration Files..................................................................................................................................377

20 IPv4 Routing............................................................................................................................................380

IP Addresses....................................................................................................................................................................381

Implementation Information.................................................................................................................................... 381

Conguration Tasks for IP Addresses.......................................................................................................................... 381

Assigning IP Addresses to an Interface........................................................................................................................381

Conguring Static Routes.............................................................................................................................................382

Congure Static Routes for the Management Interface.......................................................................................... 383

Using the Congured Source IP Address in ICMP Messages..................................................................................383

Conguring the ICMP Source Interface............................................................................................................... 384

Conguring the Duration to Establish a TCP Connection........................................................................................ 384

Enabling Directed Broadcast........................................................................................................................................ 384

Resolution of Host Names............................................................................................................................................385

Enabling Dynamic Resolution of Host Names............................................................................................................385

Specifying the Local System Domain and a List of Domains................................................................................... 386

Conguring DNS with Traceroute................................................................................................................................386

ARP..................................................................................................................................................................................387

Conguration Tasks for ARP.........................................................................................................................................387

Conguring Static ARP Entries.................................................................................................................................... 387

Enabling Proxy ARP.......................................................................................................................................................388

Clearing ARP Cache......................................................................................................................................................388

ARP Learning via Gratuitous ARP................................................................................................................................388

Enabling ARP Learning via Gratuitous ARP................................................................................................................388

ARP Learning via ARP Request................................................................................................................................... 389

Conguring ARP Retries...............................................................................................................................................389

ICMP............................................................................................................................................................................... 390

Conguration Tasks for ICMP...................................................................................................................................... 390

Enabling ICMP Unreachable Messages...................................................................................................................... 390

UDP Helper..................................................................................................................................................................... 391

Congure UDP Helper............................................................................................................................................. 391

Important Points to Remember.............................................................................................................................. 391

Enabling UDP Helper......................................................................................................................................................391

Conguring a Broadcast Address.................................................................................................................................391

Congurations Using UDP Helper............................................................................................................................... 392

UDP Helper with Broadcast-All Addresses.................................................................................................................392

UDP Helper with Subnet Broadcast Addresses.........................................................................................................393

UDP Helper with Congured Broadcast Addresses..................................................................................................393

UDP Helper with No Congured Broadcast Addresses............................................................................................394

Troubleshooting UDP Helper........................................................................................................................................ 394

21 IPv6 Routing............................................................................................................................................ 395

Protocol Overview.........................................................................................................................................................395

14

Contents

Extended Address Space........................................................................................................................................396

Stateless Autoconguration................................................................................................................................... 396

IPv6 Headers............................................................................................................................................................396

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support....................................................................397

IPv6 Header Fields...................................................................................................................................................398

Extension Header Fields......................................................................................................................................... 400

Addressing.................................................................................................................................................................401

Implementing IPv6 with Dell Networking OS............................................................................................................. 402

ICMPv6...........................................................................................................................................................................403

Path MTU Discovery.....................................................................................................................................................404

IPv6 Neighbor Discovery..............................................................................................................................................404

IPv6 Neighbor Discovery of MTU Packets.......................................................................................................... 405

Conguring the IPv6 Recursive DNS Server....................................................................................................... 405

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................406

Displaying IPv6 RDNSS Information......................................................................................................................406

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 407

Conguration Tasks for IPv6........................................................................................................................................ 407

Adjusting Your CAM-Prole.................................................................................................................................... 407

Assigning an IPv6 Address to an Interface...........................................................................................................408

Assigning a Static IPv6 Route................................................................................................................................408

Conguring Telnet with IPv6..................................................................................................................................409

SNMP over IPv6......................................................................................................................................................409

Displaying IPv6 Information.....................................................................................................................................410

Displaying an IPv6 Interface Information...............................................................................................................410

Showing IPv6 Routes............................................................................................................................................... 411

Showing the Running-Conguration for an Interface..........................................................................................412

Clearing IPv6 Routes................................................................................................................................................412

Conguring IPv6 RA Guard........................................................................................................................................... 413

Conguring IPv6 RA Guard on an Interface..........................................................................................................414

Monitoring IPv6 RA Guard...................................................................................................................................... 415

22 iSCSI Optimization................................................................................................................................... 416

iSCSI Optimization Overview........................................................................................................................................416

Monitoring iSCSI Trac Flows................................................................................................................................417

Application of Quality of Service to iSCSI Trac Flows...................................................................................... 418

Information Monitored in iSCSI Trac Flows........................................................................................................418

Detection and Auto-Conguration for Dell EqualLogic Arrays............................................................................419

Conguring Detection and Ports for Dell Compellent Arrays..............................................................................419

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................420

Enable and Disable iSCSI Optimization................................................................................................................. 420

Default iSCSI Optimization Values................................................................................................................................421

iSCSI Optimization Prerequisites.................................................................................................................................. 421

Conguring iSCSI Optimization.................................................................................................................................... 421

Displaying iSCSI Optimization Information..................................................................................................................423

23 Intermediate System to Intermediate System.......................................................................................... 425

IS-IS Protocol Overview................................................................................................................................................425

Contents

15

IS-IS Addressing.............................................................................................................................................................425

Multi-Topology IS-IS...................................................................................................................................................... 426

Transition Mode....................................................................................................................................................... 426

Interface Support.....................................................................................................................................................426

Adjacencies...............................................................................................................................................................427

Graceful Restart.............................................................................................................................................................427

Timers........................................................................................................................................................................427

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

Conguration Information.............................................................................................................................................428

Conguration Tasks for IS-IS..................................................................................................................................428

Conguring the Distance of a Route.....................................................................................................................436

Changing the IS-Type.............................................................................................................................................. 436

Redistributing IPv4 Routes.....................................................................................................................................439

Redistributing IPv6 Routes.....................................................................................................................................439

Conguring Authentication Passwords.................................................................................................................440

Setting the Overload Bit..........................................................................................................................................441

Debugging IS-IS........................................................................................................................................................441

IS-IS Metric Styles.........................................................................................................................................................442

Congure Metric Values................................................................................................................................................442

Maximum Values in the Routing Table...................................................................................................................443

Change the IS-IS Metric Style in One Level Only................................................................................................443

Leaks from One Level to Another..........................................................................................................................444

Sample Congurations.................................................................................................................................................. 445

24 Link Aggregation Control Protocol (LACP).............................................................................................. 448

Introduction to Dynamic LAGs and LACP.................................................................................................................. 448

Important Points to Remember............................................................................................................................. 448

LACP Modes............................................................................................................................................................ 449

Conguring LACP Commands............................................................................................................................... 449

LACP Conguration Tasks............................................................................................................................................450

Creating a LAG.........................................................................................................................................................450

Conguring the LAG Interfaces as Dynamic........................................................................................................450

Setting the LACP Long Timeout............................................................................................................................ 451

Monitoring and Debugging LACP...........................................................................................................................451

Shared LAG State Tracking.......................................................................................................................................... 452

Conguring Shared LAG State Tracking...............................................................................................................452

Important Points about Shared LAG State Tracking...........................................................................................453

LACP Basic Conguration Example............................................................................................................................ 454

Congure a LAG on ALPHA................................................................................................................................... 454

25 Layer 2.....................................................................................................................................................463

Manage the MAC Address Table................................................................................................................................. 463

Clearing the MAC Address Table........................................................................................................................... 463

Setting the Aging Time for Dynamic Entries........................................................................................................463

Conguring a Static MAC Address........................................................................................................................464

Displaying the MAC Address Table........................................................................................................................ 464

MAC Learning Limit.......................................................................................................................................................464

16

Contents

Setting the MAC Learning Limit............................................................................................................................ 465

mac learning-limit Dynamic.................................................................................................................................... 465

mac learning-limit mac-address-sticky................................................................................................................. 465

mac learning-limit station-move............................................................................................................................ 466

mac learning-limit no-station-move...................................................................................................................... 466

Learning Limit Violation Actions.............................................................................................................................466

Setting Station Move Violation Actions................................................................................................................ 466

Recovering from Learning Limit and Station Move Violations........................................................................... 467

Disabling MAC Address Learning on the System.................................................................................................467

NIC Teaming................................................................................................................................................................... 468

Congure Redundant Pairs...........................................................................................................................................469

Important Points about Conguring Redundant Pairs........................................................................................ 470

Far-End Failure Detection............................................................................................................................................. 472

FEFD State Changes...............................................................................................................................................472

Conguring FEFD.....................................................................................................................................................473

Enabling FEFD on an Interface...............................................................................................................................474

Debugging FEFD......................................................................................................................................................475

26 Link Layer Discovery Protocol (LLDP)......................................................................................................477

802.1AB (LLDP) Overview............................................................................................................................................477

Protocol Data Units..................................................................................................................................................477

Optional TLVs................................................................................................................................................................. 478

Management TLVs...................................................................................................................................................478

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 480

TIA Organizationally Specic TLVs........................................................................................................................480

Congure LLDP..............................................................................................................................................................484

Related Conguration Tasks................................................................................................................................... 484

Important Points to Remember............................................................................................................................. 484

LLDP Compatibility..................................................................................................................................................484

CONFIGURATION versus INTERFACE Congurations............................................................................................ 484

Enabling LLDP................................................................................................................................................................485

Disabling and Undoing LLDP.................................................................................................................................. 485

Enabling LLDP on Management Ports........................................................................................................................485

Disabling and Undoing LLDP on Management Ports.......................................................................................... 486

Advertising TLVs............................................................................................................................................................ 486

Viewing the LLDP Conguration..................................................................................................................................487

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 488

Conguring LLDPDU Intervals..................................................................................................................................... 489

Conguring Transmit and Receive Mode....................................................................................................................489

Conguring the Time to Live Value............................................................................................................................. 490

Debugging LLDP.............................................................................................................................................................491

Relevant Management Objects.................................................................................................................................... 491

27 Microsoft Network Load Balancing.......................................................................................................... 496

NLB Unicast Mode Scenario........................................................................................................................................496

NLB Multicast Mode Scenario.....................................................................................................................................496

Limitations of the NLB Feature.................................................................................................................................... 497

Contents

17

Microsoft Clustering...................................................................................................................................................... 497

Enable and Disable VLAN Flooding .............................................................................................................................497

Conguring a Switch for NLB ..................................................................................................................................... 497

Enabling a Switch for Multicast NLB.................................................................................................................... 498

28 Multicast Source Discovery Protocol (MSDP)......................................................................................... 499

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

Anycast RP.....................................................................................................................................................................500

Implementation Information.......................................................................................................................................... 501

Congure Multicast Source Discovery Protocol.........................................................................................................501

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

Enable MSDP.................................................................................................................................................................505

Manage the Source-Active Cache.............................................................................................................................. 506

Viewing the Source-Active Cache........................................................................................................................ 506

Limiting the Source-Active Cache.........................................................................................................................506

Clearing the Source-Active Cache........................................................................................................................ 507

Enabling the Rejected Source-Active Cache....................................................................................................... 507

Accept Source-Active Messages that Fail the RFP Check......................................................................................507

Specifying Source-Active Messages........................................................................................................................... 510

Limiting the Source-Active Messages from a Peer.................................................................................................... 511

Preventing MSDP from Caching a Local Source........................................................................................................ 511

Preventing MSDP from Caching a Remote Source................................................................................................... 512

Preventing MSDP from Advertising a Local Source.................................................................................................. 512

Logging Changes in Peership States............................................................................................................................513

Terminating a Peership...................................................................................................................................................513

Clearing Peer Statistics..................................................................................................................................................514

Debugging MSDP...........................................................................................................................................................514

MSDP with Anycast RP.................................................................................................................................................514

Conguring Anycast RP................................................................................................................................................ 515

Reducing Source-Active Message Flooding......................................................................................................... 516

Specifying the RP Address Used in SA Messages...............................................................................................516

MSDP Sample Congurations...................................................................................................................................... 518

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 521

Protocol Overview..........................................................................................................................................................521

Spanning Tree Variations...............................................................................................................................................522

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

Congure Multiple Spanning Tree Protocol................................................................................................................522

Related Conguration Tasks................................................................................................................................... 522

Enable Multiple Spanning Tree Globally...................................................................................................................... 523

Adding and Removing Interfaces.................................................................................................................................523

Creating Multiple Spanning Tree Instances................................................................................................................ 523

Inuencing MSTP Root Selection................................................................................................................................525

Interoperate with Non-Dell Bridges.............................................................................................................................525

Changing the Region Name or Revision..................................................................................................................... 526

Modifying Global Parameters....................................................................................................................................... 526

Modifying the Interface Parameters............................................................................................................................527

18

Contents

Conguring an EdgePort.............................................................................................................................................. 528

Flush MAC Addresses after a Topology Change....................................................................................................... 529

MSTP Sample Congurations......................................................................................................................................529

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

CongurationSFTOS Example Running-Conguration.......................................................................................530

Debugging and Verifying MSTP Congurations........................................................................................................ 534

30 Multicast Features...................................................................................................................................536

Enabling IP Multicast.....................................................................................................................................................536

Implementation Information......................................................................................................................................... 536

Multicast Policies........................................................................................................................................................... 537

IPv4 Multicast Policies............................................................................................................................................ 537

31 Object Tracking........................................................................................................................................ 545

Object Tracking Overview............................................................................................................................................ 545

Track Layer 2 Interfaces..........................................................................................................................................546

Track Layer 3 Interfaces..........................................................................................................................................546

Track IPv4 and IPv6 Routes................................................................................................................................... 547

Set Tracking Delays................................................................................................................................................. 548

VRRP Object Tracking............................................................................................................................................ 548

Object Tracking Conguration..................................................................................................................................... 548

Tracking a Layer 2 Interface................................................................................................................................... 548

Tracking a Layer 3 Interface................................................................................................................................... 549

Track an IPv4/IPv6 Route......................................................................................................................................550

Displaying Tracked Objects...........................................................................................................................................554

32 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 556

Protocol Overview.........................................................................................................................................................556

Autonomous System (AS) Areas........................................................................................................................... 556

Area Types................................................................................................................................................................ 557

Networks and Neighbors........................................................................................................................................558

Router Types............................................................................................................................................................ 558

Designated and Backup Designated Routers.......................................................................................................560

Link-State Advertisements (LSAs)........................................................................................................................560

Router Priority and Cost..........................................................................................................................................561

OSPF with Dell Networking OS...................................................................................................................................562

Graceful Restart...................................................................................................................................................... 563

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................564

Multi-Process OSPFv2 with VRF..........................................................................................................................564

RFC-2328 Compliant OSPF Flooding................................................................................................................... 564

OSPF ACK Packing................................................................................................................................................. 565

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 565

Conguration Information.............................................................................................................................................566

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 566

Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 580

Enabling IPv6 Unicast Routing...............................................................................................................................580

Applying cost for OSPFv3.......................................................................................................................................581

Contents

19

Assigning IPv6 Addresses on an Interface............................................................................................................ 581

Assigning Area ID on an Interface...........................................................................................................................581

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................582

Assigning OSPFv3 Process ID and Router ID to a VRF......................................................................................582

Conguring Stub Areas...........................................................................................................................................583

Conguring Passive-Interface................................................................................................................................583

Redistributing Routes..............................................................................................................................................583

Conguring a Default Route...................................................................................................................................584

Enabling OSPFv3 Graceful Restart....................................................................................................................... 584

OSPFv3 Authentication Using IPsec.....................................................................................................................586

Troubleshooting OSPFv3........................................................................................................................................592

33 Policy-based Routing (PBR).................................................................................................................... 594

Overview.........................................................................................................................................................................594

Implementing PBR.........................................................................................................................................................595

Conguration Task List for Policy-based Routing......................................................................................................595

PBR Exceptions (Permit)....................................................................................................................................... 596

Create a Redirect List............................................................................................................................................. 596

Create a Rule for a Redirect-list.............................................................................................................................596

Apply a Redirect-list to an Interface using a Redirect-group............................................................................. 598

Sample Conguration....................................................................................................................................................600

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View Redirect-List GOLD...... 601

34 PIM Sparse-Mode (PIM-SM).................................................................................................................. 604

Implementation Information......................................................................................................................................... 604

Protocol Overview.........................................................................................................................................................604

Requesting Multicast Trac.................................................................................................................................. 604

Refuse Multicast Trac..........................................................................................................................................605

Send Multicast Trac.............................................................................................................................................605

Conguring PIM-SM.....................................................................................................................................................605

Related Conguration Tasks...................................................................................................................................606

Enable PIM-SM..............................................................................................................................................................606

Conguring S,G Expiry Timers..................................................................................................................................... 607

Conguring a Static Rendezvous Point......................................................................................................................608

Overriding Bootstrap Router Updates.................................................................................................................. 608

Conguring a Designated Router................................................................................................................................ 608

Creating Multicast Boundaries and Domains............................................................................................................. 609

35 PIM Source-Specic Mode (PIM-SSM)...................................................................................................610

Implementation Information.......................................................................................................................................... 610

Important Points to Remember.............................................................................................................................. 610

Congure PIM-SSM.......................................................................................................................................................610

Related Conguration Tasks.................................................................................................................................... 611

Enabling PIM-SSM..........................................................................................................................................................611

Use PIM-SSM with IGMP Version 2 Hosts................................................................................................................. 611

Conguring PIM-SSM with IGMPv2..................................................................................................................... 612

20

Contents

Dell PowerSwitch S6000 ON User manual

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