Dell PowerSwitch S6000 ON User guide

Dell Conguration Guide for the S6000–ON

System

9.11(2.0P1)

Notes, cautions, and warnings

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

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

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

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2017 - 05

Rev. A00

Contents

1 About this Guide...........................................................................................................................................34

Audience............................................................................................................................................................................34

Conventions......................................................................................................................................................................34

Related Documents......................................................................................................................................................... 34

2 Conguration Fundamentals........................................................................................................................ 35

Accessing the Command Line........................................................................................................................................35

CLI Modes.........................................................................................................................................................................35

Navigating CLI Modes............................................................................................................................................... 37

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

Undoing Commands........................................................................................................................................................ 40

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

Entering and Editing Commands.................................................................................................................................... 41

Command History............................................................................................................................................................ 42

Filtering show Command Outputs.................................................................................................................................42

Example of the grep Keyword.................................................................................................................................. 42

Multiple Users in Conguration Mode...........................................................................................................................43

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

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

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

Default Conguration...................................................................................................................................................... 46

Conguring a Host Name............................................................................................................................................... 46

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

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

Congure the Management Port IP Address......................................................................................................... 47

Congure a Management Route..............................................................................................................................47

Conguring a Username and Password.................................................................................................................. 47

Conguring the Enable Password..................................................................................................................................48

Conguration File Management.....................................................................................................................................48

Copy Files to and from the System......................................................................................................................... 48

Mounting an NFS File System..................................................................................................................................49

Save the Running-Conguration.............................................................................................................................. 51

Congure the Overload Bit for a Startup Scenario................................................................................................ 51

Viewing Files................................................................................................................................................................51

Managing the File System.............................................................................................................................................. 52

View Command History.................................................................................................................................................. 53

Upgrading Dell Networking OS...................................................................................................................................... 53

Using HTTP for File Transfers........................................................................................................................................ 53

Verify Software Images Before Installation...................................................................................................................54

4 Management............................................................................................................................................... 56

Contents

3

Conguring Privilege Levels........................................................................................................................................... 56

Creating a Custom Privilege Level........................................................................................................................... 57

Removing a Command from EXEC Mode.............................................................................................................. 57

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................57

Allowing Access to CONFIGURATION Mode Commands.................................................................................... 57

Allowing Access to Dierent Modes........................................................................................................................57

Applying a Privilege Level to a Username............................................................................................................... 59

Applying a Privilege Level to a Terminal Line.......................................................................................................... 59

Conguring Logging........................................................................................................................................................ 59

Audit and Security Logs............................................................................................................................................60

Conguring Logging Format ................................................................................................................................... 61

Setting Up a Secure Connection to a Syslog Server............................................................................................. 61

Log Messages in the Internal Buer..............................................................................................................................63

Conguration Task List for System Log Management.......................................................................................... 63

Disabling System Logging............................................................................................................................................... 63

Sending System Messages to a Syslog Server............................................................................................................63

Conguring a UNIX System as a Syslog Server.....................................................................................................63

Track Login Activity......................................................................................................................................................... 64

Restrictions for Tracking Login Activity...................................................................................................................64

Conguring Login Activity Tracking......................................................................................................................... 64

Display Login Statistics..............................................................................................................................................65

Limit Concurrent Login Sessions....................................................................................................................................66

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 66

Conguring Concurrent Session Limit.....................................................................................................................66

Enabling the System to Clear Existing Sessions.................................................................................................... 67

Enabling Secured CLI Mode........................................................................................................................................... 68

Changing System Logging Settings...............................................................................................................................68

Display the Logging Buer and the Logging Conguration........................................................................................69

Conguring a UNIX Logging Facility Level....................................................................................................................69

Synchronizing Log Messages......................................................................................................................................... 70

Enabling Timestamp on Syslog Messages.....................................................................................................................71

File Transfer Services....................................................................................................................................................... 71

Conguration Task List for File Transfer Services..................................................................................................72

Enabling the FTP Server........................................................................................................................................... 72

Conguring FTP Server Parameters........................................................................................................................72

Conguring FTP Client Parameters......................................................................................................................... 73

Terminal Lines................................................................................................................................................................... 73

Denying and Permitting Access to a Terminal Line................................................................................................ 73

Conguring Login Authentication for Terminal Lines............................................................................................. 74

Setting Timeout for EXEC Privilege Mode................................................................................................................... 75

Using Telnet to get to Another Network Device..........................................................................................................76

Lock CONFIGURATION Mode....................................................................................................................................... 76

Viewing the Conguration Lock Status...................................................................................................................76

Reloading the system.......................................................................................................................................................77

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

4

Contents

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

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

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

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

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

Conguring 802.1X...........................................................................................................................................................84

Related Conguration Tasks..................................................................................................................................... 84

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

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

Conguring dot1x Prole ................................................................................................................................................86

Conguring MAC addresses for a do1x Prole............................................................................................................. 87

Conguring the Static MAB and MAB Prole ............................................................................................................. 87

Conguring Critical VLAN ..............................................................................................................................................88

Conguring Request Identity Re-Transmissions...........................................................................................................89

Conguring a Quiet Period after a Failed Authentication..................................................................................... 89

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

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

Conguring Timeouts...................................................................................................................................................... 92

Conguring Dynamic VLAN Assignment with Port Authentication...........................................................................93

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

Conguring a Guest VLAN....................................................................................................................................... 94

Conguring an Authentication-Fail VLAN...............................................................................................................94

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

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

CAM Usage.................................................................................................................................................................98

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

Congure ACL Range Proles................................................................................................................................ 100

Important Points to Remember....................................................................................................................................100

Conguration Task List for Route Maps.................................................................................................................101

Conguring Match Routes...................................................................................................................................... 103

Conguring Set Conditions.....................................................................................................................................104

Congure a Route Map for Route Redistribution.................................................................................................105

Congure a Route Map for Route Tagging........................................................................................................... 106

Continue Clause........................................................................................................................................................106

IP Fragment Handling.................................................................................................................................................... 106

IP Fragments ACL Examples...................................................................................................................................107

Layer 4 ACL Rules Examples...................................................................................................................................107

Congure a Standard IP ACL........................................................................................................................................108

Conguring a Standard IP ACL Filter.....................................................................................................................109

Congure an Extended IP ACL......................................................................................................................................110

Conguring Filters with a Sequence Number........................................................................................................110

Conguring Filters Without a Sequence Number................................................................................................. 113

Congure Layer 2 and Layer 3 ACLs............................................................................................................................ 113

Assign an IP ACL to an Interface...................................................................................................................................114

Contents

5

Applying an IP ACL..........................................................................................................................................................114

Counting ACL Hits.................................................................................................................................................... 115

Congure Ingress ACLs.................................................................................................................................................. 115

Congure Egress ACLs...................................................................................................................................................116

Applying Egress Layer 3 ACLs (Control-Plane)..................................................................................................... 117

IP Prex Lists................................................................................................................................................................... 117

Implementation Information..................................................................................................................................... 118

Conguration Task List for Prex Lists...................................................................................................................118

ACL Resequencing..........................................................................................................................................................121

Resequencing an ACL or Prex List.......................................................................................................................122

Route Maps.....................................................................................................................................................................123

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

Flow-Based Monitoring Support for ACLs.................................................................................................................. 123

Behavior of Flow-Based Monitoring.......................................................................................................................124

Enabling Flow-Based Monitoring............................................................................................................................125

Conguring IP Mirror Access Group............................................................................................................................ 126

Sample Conguration...............................................................................................................................................127

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

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 128

How BFD Works............................................................................................................................................................. 128

BFD Packet Format..................................................................................................................................................129

BFD Sessions............................................................................................................................................................ 130

BFD Three-Way Handshake.....................................................................................................................................131

Session State Changes............................................................................................................................................133

Important Points to Remember.................................................................................................................................... 133

Congure BFD................................................................................................................................................................ 133

Congure BFD for Physical Ports...........................................................................................................................134

Congure BFD for Static Routes............................................................................................................................135

Congure BFD for OSPF.........................................................................................................................................138

Congure BFD for OSPFv3......................................................................................................................................141

Congure BFD for IS-IS...........................................................................................................................................143

Congure BFD for BGP...........................................................................................................................................145

Congure BFD for VRRP.........................................................................................................................................152

Conguring Protocol Liveness................................................................................................................................155

Troubleshooting BFD................................................................................................................................................155

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................157

Autonomous Systems (AS)........................................................................................................................................... 157

Sessions and Peers........................................................................................................................................................ 159

Establish a Session...................................................................................................................................................159

Route Reectors.............................................................................................................................................................160

BGP Attributes................................................................................................................................................................ 161

Best Path Selection Criteria.....................................................................................................................................161

Weight........................................................................................................................................................................163

Local Preference.......................................................................................................................................................163

6

Contents

Multi-Exit Discriminators (MEDs)...........................................................................................................................164

Origin..........................................................................................................................................................................165

AS Path......................................................................................................................................................................166

Next Hop................................................................................................................................................................... 166

Multiprotocol BGP..........................................................................................................................................................166

Implement BGP with Dell Networking OS...................................................................................................................167

Additional Path (Add-Path) Support...................................................................................................................... 167

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................167

Ignore Router-ID in Best-Path Calculation............................................................................................................ 168

Four-Byte AS Numbers............................................................................................................................................168

AS4 Number Representation.................................................................................................................................. 168

AS Number Migration...............................................................................................................................................170

BGP4 Management Information Base (MIB).........................................................................................................171

Important Points to Remember...............................................................................................................................171

Conguration Information..............................................................................................................................................172

BGP Conguration..........................................................................................................................................................172

Enabling BGP............................................................................................................................................................ 173

Conguring AS4 Number Representations........................................................................................................... 176

Conguring Peer Groups......................................................................................................................................... 178

Conguring BGP Fast Fall-Over.............................................................................................................................180

Conguring Passive Peering................................................................................................................................... 182

Maintaining Existing AS Numbers During an AS Migration................................................................................. 182

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 183

Enabling Graceful Restart........................................................................................................................................184

Enabling Neighbor Graceful Restart...................................................................................................................... 185

Filtering on an AS-Path Attribute........................................................................................................................... 185

Regular Expressions as Filters.................................................................................................................................187

Redistributing Routes...............................................................................................................................................188

Enabling Additional Paths........................................................................................................................................ 189

Conguring IP Community Lists............................................................................................................................. 189

Conguring an IP Extended Community List........................................................................................................190

Filtering Routes with Community Lists...................................................................................................................191

Manipulating the COMMUNITY Attribute.............................................................................................................192

Changing MED Attributes....................................................................................................................................... 193

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 193

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 194

Changing the WEIGHT Attribute............................................................................................................................195

Enabling Multipath....................................................................................................................................................195

Filtering BGP Routes................................................................................................................................................195

Filtering BGP Routes Using Route Maps...............................................................................................................197

Filtering BGP Routes Using AS-PATH Information...............................................................................................197

Conguring BGP Route Reectors........................................................................................................................ 198

Aggregating Routes..................................................................................................................................................199

Conguring BGP Confederations...........................................................................................................................199

Enabling Route Flap Dampening............................................................................................................................200

Contents

7

Changing BGP Timers.............................................................................................................................................202

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................202

Enabling or disabling BGP neighbors.....................................................................................................................203

Route Map Continue...............................................................................................................................................205

Enabling MBGP Congurations................................................................................................................................... 205

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 206

BGP Regular Expression Optimization........................................................................................................................206

Debugging BGP............................................................................................................................................................. 206

Storing Last and Bad PDUs.................................................................................................................................... 207

Capturing PDUs.......................................................................................................................................................208

PDU Counters.......................................................................................................................................................... 209

Sample Congurations..................................................................................................................................................209

9 Content Addressable Memory (CAM).........................................................................................................216

CAM Allocation............................................................................................................................................................... 216

Test CAM Usage.............................................................................................................................................................218

View CAM Proles..........................................................................................................................................................218

View CAM-ACL Settings...............................................................................................................................................219

View CAM Usage...........................................................................................................................................................220

CAM Optimization.......................................................................................................................................................... 221

Troubleshoot CAM Proling...........................................................................................................................................221

QoS CAM Region Limitation................................................................................................................................... 221

Syslog Error When the Table is Full........................................................................................................................ 221

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................222

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................222

Unied Forwarding Table (UFT) Modes......................................................................................................................222

Conguring UFT Modes..........................................................................................................................................222

10 Control Plane Policing (CoPP)..................................................................................................................224

Congure Control Plane Policing................................................................................................................................. 225

Conguring CoPP for Protocols............................................................................................................................ 226

Conguring CoPP for CPU Queues...................................................................................................................... 228

Displaying CoPP Conguration ............................................................................................................................. 229

11 Data Center Bridging (DCB)...................................................................................................................... 231

Ethernet Enhancements in Data Center Bridging...................................................................................................... 231

Priority-Based Flow Control................................................................................................................................... 232

Enhanced Transmission Selection..........................................................................................................................233

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................234

Data Center Bridging in a Trac Flow.................................................................................................................. 235

Enabling Data Center Bridging.....................................................................................................................................235

DCB Maps and its Attributes..................................................................................................................................236

Data Center Bridging: Default Conguration..............................................................................................................237

Conguring Priority-Based Flow Control.................................................................................................................... 237

Conguring Lossless Queues................................................................................................................................. 238

Conguring PFC in a DCB Map................................................................................................................................... 240

8

Contents

PFC Conguration Notes........................................................................................................................................240

PFC Prerequisites and Restrictions........................................................................................................................241

Applying a DCB Map on a Port.....................................................................................................................................241

Conguring PFC without a DCB Map.........................................................................................................................242

Conguring Lossless QueuesExample:..................................................................................................................242

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................244

Pause and Resume of Trac..................................................................................................................................244

Buer Sizes for Lossless or PFC Packets.............................................................................................................244

Behavior of Tagged Packets.........................................................................................................................................245

Conguration Example for DSCP and PFC Priorities................................................................................................245

SNMP Support for PFC and Buer Statistics Tracking............................................................................................246

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................246

PFC and ETS Conguration Examples........................................................................................................................247

Using PFC to Manage Converged Ethernet Trac...................................................................................................247

Operations on Untagged Packets................................................................................................................................ 247

Generation of PFC for a Priority for Untagged Packets...........................................................................................248

Congure Enhanced Transmission Selection..............................................................................................................248

ETS Prerequisites and Restrictions........................................................................................................................248

Creating an ETS Priority Group..............................................................................................................................248

ETS Operation with DCBx...................................................................................................................................... 249

Conguring Bandwidth Allocation for DCBx CIN................................................................................................ 250

Conguring ETS in a DCB Map.............................................................................................................................. 251

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 252

Using ETS to Manage Converged Ethernet Trac...................................................................................................252

Applying DCB Policies in a Switch Stack.................................................................................................................... 253

Congure a DCBx Operation........................................................................................................................................253

DCBx Operation.......................................................................................................................................................253

DCBx Port Roles...................................................................................................................................................... 253

DCB Conguration Exchange................................................................................................................................ 255

Conguration Source Election............................................................................................................................... 255

Propagation of DCB Information........................................................................................................................... 256

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 256

DCBx Example......................................................................................................................................................... 256

DCBx Prerequisites and Restrictions.....................................................................................................................257

Conguring DCBx.................................................................................................................................................... 257

Verifying the DCB Conguration.................................................................................................................................. 261

QoS dot1p Trac Classication and Queue Assignment..........................................................................................269

Conguring the Dynamic Buer Method....................................................................................................................270

Sample DCB Conguration............................................................................................................................................271

PFC and ETS Conguration Command Examples...............................................................................................272

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 273

DHCP Packet Format and Options..............................................................................................................................273

Assign an IP Address using DHCP............................................................................................................................... 275

Implementation Information..........................................................................................................................................276

Congure the System to be a DHCP Server..............................................................................................................276

Contents

9

Conguring the Server for Automatic Address Allocation.................................................................................. 277

Specifying a Default Gateway................................................................................................................................ 278

Congure a Method of Hostname Resolution......................................................................................................278

Using DNS for Address Resolution........................................................................................................................ 278

Using NetBIOS WINS for Address Resolution......................................................................................................279

Creating Manual Binding Entries............................................................................................................................279

Debugging the DHCP Server................................................................................................................................. 279

Using DHCP Clear Commands.............................................................................................................................. 280

Congure the System to be a DHCP Client............................................................................................................... 280

Conguring the DHCP Client System...................................................................................................................280

DHCP Client on a Management Interface............................................................................................................ 282

DHCP Client Operation with Other Features.......................................................................................................282

Congure the System for User Port Stacking (Option 230)....................................................................................283

Congure Secure DHCP............................................................................................................................................... 283

Option 82..................................................................................................................................................................284

DHCP Snooping.......................................................................................................................................................284

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 287

Dynamic ARP Inspection.........................................................................................................................................288

Conguring Dynamic ARP Inspection................................................................................................................... 289

Source Address Validation............................................................................................................................................ 290

Enabling IP Source Address Validation..................................................................................................................290

DHCP MAC Source Address Validation.................................................................................................................291

Enabling IP+MAC Source Address Validation....................................................................................................... 291

Viewing the Number of SAV Dropped Packets....................................................................................................292

Clearing the Number of SAV Dropped Packets................................................................................................... 292

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 293

ECMP for Flow-Based Anity.....................................................................................................................................293

Conguring the Hash Algorithm............................................................................................................................ 293

Enabling Deterministic ECMP Next Hop.............................................................................................................. 293

Conguring the Hash Algorithm Seed.................................................................................................................. 294

Link Bundle Monitoring................................................................................................................................................. 294

Managing ECMP Group Paths...............................................................................................................................295

Creating an ECMP Group Bundle..........................................................................................................................295

Modifying the ECMP Group Threshold................................................................................................................ 295

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................296

Support for ECMP in host table.............................................................................................................................297

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 297

14 FIP Snooping............................................................................................................................................298

Fibre Channel over Ethernet........................................................................................................................................ 298

Ensure Robustness in a Converged Ethernet Network............................................................................................298

FIP Snooping on Ethernet Bridges..............................................................................................................................300

Using FIP Snooping....................................................................................................................................................... 302

FIP Snooping Prerequisites.....................................................................................................................................302

Important Points to Remember............................................................................................................................. 302

10

Contents

Enabling the FCoE Transit Feature........................................................................................................................303

Enable FIP Snooping on VLANs.............................................................................................................................303

Congure the FC-MAP Value................................................................................................................................ 304

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................304

Congure a Port for a Bridge-to-FCF Link...........................................................................................................304

Impact on Other Software Features..................................................................................................................... 304

FIP Snooping Restrictions...................................................................................................................................... 305

Conguring FIP Snooping.......................................................................................................................................305

Displaying FIP Snooping Information...........................................................................................................................306

FCoE Transit Conguration Example............................................................................................................................ 311

15 Flex Hash and Optimized Boot-Up............................................................................................................ 313

Flex Hash Capability Overview..................................................................................................................................... 313

Conguring the Flex Hash Mechanism........................................................................................................................313

Conguring Fast Boot and LACP Fast Switchover....................................................................................................314

Optimizing the Boot Time..............................................................................................................................................314

Booting Process When Optimized Boot Time Mechanism is Enabled...............................................................314

Guidelines for Conguring Optimized Booting Mechanism.................................................................................315

Interoperation of Applications with Fast Boot and System States...........................................................................316

LACP and IPv4 Routing...........................................................................................................................................316

LACP and IPv6 Routing...........................................................................................................................................316

BGP Graceful Restart.............................................................................................................................................. 317

Cold Boot Caused by Power Cycling the System.................................................................................................317

Unexpected Reload of the System.........................................................................................................................317

Software Upgrade.................................................................................................................................................... 317

LACP Fast Switchover.............................................................................................................................................317

Changes to BGP Multipath..................................................................................................................................... 318

Delayed Installation of ECMP Routes Into BGP....................................................................................................318

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................ 318

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.......................................................................................319

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 320

Protocol Overview.........................................................................................................................................................320

Ring Status................................................................................................................................................................321

Multiple FRRP Rings................................................................................................................................................ 321

Important FRRP Points...........................................................................................................................................322

Important FRRP Concepts..................................................................................................................................... 323

Implementing FRRP.......................................................................................................................................................324

FRRP Conguration.......................................................................................................................................................324

Creating the FRRP Group.......................................................................................................................................324

Conguring the Control VLAN...............................................................................................................................325

Conguring and Adding the Member VLANs.......................................................................................................326

Setting the FRRP Timers........................................................................................................................................ 327

Clearing the FRRP Counters.................................................................................................................................. 327

Viewing the FRRP Conguration........................................................................................................................... 327

Viewing the FRRP Information...............................................................................................................................327

Contents

11

Troubleshooting FRRP.................................................................................................................................................. 328

Conguration Checks..............................................................................................................................................328

Sample Conguration and Topology............................................................................................................................328

FRRP Support on VLT...................................................................................................................................................329

Example Scenario.................................................................................................................................................... 330

Important Points to Remember.............................................................................................................................. 331

17 GARP VLAN Registration Protocol (GVRP).............................................................................................. 332

Important Points to Remember....................................................................................................................................332

Congure GVRP............................................................................................................................................................ 333

Related Conguration Tasks................................................................................................................................... 333

Enabling GVRP Globally................................................................................................................................................ 334

Enabling GVRP on a Layer 2 Interface........................................................................................................................334

Congure GVRP Registration.......................................................................................................................................334

Congure a GARP Timer.............................................................................................................................................. 335

18 Internet Group Management Protocol (IGMP)......................................................................................... 336

IGMP Implementation Information.............................................................................................................................. 336

IGMP Protocol Overview..............................................................................................................................................336

IGMP Version 2........................................................................................................................................................ 336

IGMP Version 3........................................................................................................................................................ 338

Congure IGMP..............................................................................................................................................................341

Related Conguration Tasks....................................................................................................................................341

Viewing IGMP Enabled Interfaces............................................................................................................................... 342

Selecting an IGMP Version........................................................................................................................................... 342

Viewing IGMP Groups...................................................................................................................................................342

Adjusting Timers............................................................................................................................................................ 343

Adjusting Query and Response Timers................................................................................................................. 343

Enabling IGMP Immediate-Leave.................................................................................................................................344

IGMP Snooping..............................................................................................................................................................344

IGMP Snooping Implementation Information....................................................................................................... 344

Conguring IGMP Snooping...................................................................................................................................344

Removing a Group-Port Association.....................................................................................................................345

Disabling Multicast Flooding...................................................................................................................................345

Specifying a Port as Connected to a Multicast Router...................................................................................... 345

Conguring the Switch as Querier........................................................................................................................ 346

Fast Convergence after MSTP Topology Changes...................................................................................................346

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................347

Protocol Separation................................................................................................................................................. 347

Enabling and Disabling Management Egress Interface Selection...................................................................... 348

Handling of Management Route Conguration................................................................................................... 349

Handling of Switch-Initiated Trac....................................................................................................................... 349

Handling of Switch-Destined Trac..................................................................................................................... 350

Handling of Transit Trac (Trac Separation)..................................................................................................... 351

Mapping of Management Applications and Trac Type......................................................................................351

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 352

12

Contents

Behavior of Various Applications for Switch-Destined Trac ...........................................................................353

Interworking of EIS With Various Applications.....................................................................................................354

Designating a Multicast Router Interface...................................................................................................................354

19 Interfaces.................................................................................................................................................355

Basic Interface Conguration.......................................................................................................................................355

Advanced Interface Conguration...............................................................................................................................355

Interface Types...............................................................................................................................................................356

View Basic Interface Information.................................................................................................................................356

Resetting an Interface to its Factory Default State...................................................................................................358

Enabling a Physical Interface........................................................................................................................................359

Physical Interfaces.........................................................................................................................................................359

Conguration Task List for Physical Interfaces....................................................................................................359

40G to 1G Breakout Cable Adaptor.......................................................................................................................359

Overview of Layer Modes...................................................................................................................................... 360

Conguring Layer 2 (Data Link) Mode..................................................................................................................360

Conguring Layer 2 (Interface) Mode................................................................................................................... 361

Conguring Layer 3 (Network) Mode................................................................................................................... 361

Conguring Layer 3 (Interface) Mode.................................................................................................................. 362

Egress Interface Selection (EIS)..................................................................................................................................362

Important Points to Remember............................................................................................................................. 363

Conguring EIS........................................................................................................................................................ 363

Management Interfaces................................................................................................................................................363

Conguring Management Interfaces.....................................................................................................................363

Conguring a Management Interface on an Ethernet Port............................................................................... 365

VLAN Interfaces............................................................................................................................................................ 366

Loopback Interfaces......................................................................................................................................................366

Null Interfaces.................................................................................................................................................................367

Port Channel Interfaces................................................................................................................................................ 367

Port Channel Denition and Standards.................................................................................................................367

Port Channel Benets............................................................................................................................................. 367

Port Channel Implementation.................................................................................................................................368

Interfaces in Port Channels.................................................................................................................................... 368

Conguration Tasks for Port Channel Interfaces.................................................................................................369

Creating a Port Channel......................................................................................................................................... 369

Adding a Physical Interface to a Port Channel.....................................................................................................369

Reassigning an Interface to a New Port Channel.................................................................................................371

Conguring the Minimum Oper Up Links in a Port Channel...............................................................................372

Adding or Removing a Port Channel from a VLAN..............................................................................................372

Assigning an IP Address to a Port Channel...........................................................................................................373

Deleting or Disabling a Port Channel..................................................................................................................... 373

Load Balancing Through Port Channels................................................................................................................ 374

Changing the Hash Algorithm................................................................................................................................ 374

Bulk Conguration......................................................................................................................................................... 375

Interface Range........................................................................................................................................................375

Bulk Conguration Examples..................................................................................................................................376

Contents

13

Dening Interface Range Macros.................................................................................................................................377

Dene the Interface Range.....................................................................................................................................377

Choosing an Interface-Range Macro.....................................................................................................................377

Monitoring and Maintaining Interfaces........................................................................................................................378

Maintenance Using TDR......................................................................................................................................... 379

Splitting 40G Ports without Reload.............................................................................................................................379

Splitting QSFP Ports to SFP+ Ports............................................................................................................................ 381

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port...................................................................................381

Important Points to Remember..............................................................................................................................382

Example Scenarios...................................................................................................................................................382

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................383

Link Dampening..............................................................................................................................................................384

Important Points to Remember............................................................................................................................. 384

Enabling Link Dampening........................................................................................................................................384

Link Bundle Monitoring................................................................................................................................................. 386

Using Ethernet Pause Frames for Flow Control........................................................................................................ 386

Enabling Pause Frames........................................................................................................................................... 387

Congure the MTU Size on an Interface.................................................................................................................... 387

Port-Pipes.......................................................................................................................................................................388

Auto-Negotiation on Ethernet Interfaces...................................................................................................................388

Setting the Speed of Ethernet Interfaces............................................................................................................ 389

Set Auto-Negotiation Options............................................................................................................................... 390

View Advanced Interface Information..........................................................................................................................391

Conguring the Interface Sampling Size............................................................................................................... 391

Dynamic Counters......................................................................................................................................................... 393

Clearing Interface Counters....................................................................................................................................393

Compressing Conguration Files................................................................................................................................. 394

20 IPv4 Routing............................................................................................................................................ 397

IP Addresses...................................................................................................................................................................398

Implementation Information....................................................................................................................................398

Conguration Tasks for IP Addresses..........................................................................................................................398

Assigning IP Addresses to an Interface.......................................................................................................................398

Conguring Static Routes............................................................................................................................................ 399

Congure Static Routes for the Management Interface..........................................................................................400

Using the Congured Source IP Address in ICMP Messages...................................................................................401

Conguring the ICMP Source Interface................................................................................................................401

Conguring the Duration to Establish a TCP Connection.........................................................................................401

Enabling Directed Broadcast........................................................................................................................................ 402

Resolution of Host Names............................................................................................................................................402

Enabling Dynamic Resolution of Host Names............................................................................................................402

Specifying the Local System Domain and a List of Domains................................................................................... 403

Conguring DNS with Traceroute................................................................................................................................403

ARP................................................................................................................................................................................. 404

Conguration Tasks for ARP........................................................................................................................................ 404

Conguring Static ARP Entries....................................................................................................................................404

14

Contents

Enabling Proxy ARP.......................................................................................................................................................405

Clearing ARP Cache......................................................................................................................................................405

ARP Learning via Gratuitous ARP............................................................................................................................... 405

Enabling ARP Learning via Gratuitous ARP................................................................................................................406

ARP Learning via ARP Request................................................................................................................................... 406

Conguring ARP Retries............................................................................................................................................... 407

ICMP................................................................................................................................................................................407

Conguration Tasks for ICMP...................................................................................................................................... 407

Enabling ICMP Unreachable Messages...................................................................................................................... 407

UDP Helper.....................................................................................................................................................................408

Congure UDP Helper............................................................................................................................................ 408

Important Points to Remember............................................................................................................................. 408

Enabling UDP Helper.....................................................................................................................................................408

Conguring a Broadcast Address................................................................................................................................ 409

Congurations Using UDP Helper............................................................................................................................... 409

UDP Helper with Broadcast-All Addresses.................................................................................................................409

UDP Helper with Subnet Broadcast Addresses......................................................................................................... 410

UDP Helper with Congured Broadcast Addresses...................................................................................................410

UDP Helper with No Congured Broadcast Addresses............................................................................................. 411

Troubleshooting UDP Helper..........................................................................................................................................411

21 IPv6 Routing............................................................................................................................................. 412

Protocol Overview..........................................................................................................................................................412

Extended Address Space.........................................................................................................................................413

Stateless Autoconguration.................................................................................................................................... 413

IPv6 Headers.............................................................................................................................................................413

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 414

IPv6 Header Fields................................................................................................................................................... 415

Extension Header Fields...........................................................................................................................................417

Addressing.................................................................................................................................................................418

Implementing IPv6 with Dell Networking OS..............................................................................................................419

ICMPv6...........................................................................................................................................................................420

Path MTU Discovery......................................................................................................................................................421

IPv6 Neighbor Discovery...............................................................................................................................................421

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................422

Conguring the IPv6 Recursive DNS Server....................................................................................................... 422

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 423

Displaying IPv6 RDNSS Information......................................................................................................................423

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 424

Conguration Tasks for IPv6........................................................................................................................................ 424

Adjusting Your CAM-Prole....................................................................................................................................424

Assigning an IPv6 Address to an Interface...........................................................................................................425

Assigning a Static IPv6 Route................................................................................................................................426

Conguring Telnet with IPv6..................................................................................................................................426

SNMP over IPv6......................................................................................................................................................426

Displaying IPv6 Information.................................................................................................................................... 427

Contents

15

Displaying an IPv6 Interface Information...............................................................................................................427

Showing IPv6 Routes..............................................................................................................................................428

Showing the Running-Conguration for an Interface.........................................................................................429

Clearing IPv6 Routes...............................................................................................................................................430

Disabling ND Entry Timeout................................................................................................................................... 430

Conguring IPv6 RA Guard.......................................................................................................................................... 430

Conguring IPv6 RA Guard on an Interface.........................................................................................................432

Monitoring IPv6 RA Guard......................................................................................................................................433

22 iSCSI Optimization...................................................................................................................................434

iSCSI Optimization Overview....................................................................................................................................... 434

Monitoring iSCSI Trac Flows...............................................................................................................................436

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 436

Information Monitored in iSCSI Trac Flows.......................................................................................................436

Detection and Auto-Conguration for Dell EqualLogic Arrays............................................................................437

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 437

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................438

Enable and Disable iSCSI Optimization................................................................................................................. 438

Default iSCSI Optimization Values...............................................................................................................................439

iSCSI Optimization Prerequisites................................................................................................................................. 439

Conguring iSCSI Optimization....................................................................................................................................439

Displaying iSCSI Optimization Information.................................................................................................................. 441

23 Intermediate System to Intermediate System.......................................................................................... 443

IS-IS Protocol Overview................................................................................................................................................443

IS-IS Addressing.............................................................................................................................................................443

Multi-Topology IS-IS...................................................................................................................................................... 444

Transition Mode........................................................................................................................................................444

Interface Support.....................................................................................................................................................445

Adjacencies...............................................................................................................................................................445

Graceful Restart.............................................................................................................................................................445

Timers....................................................................................................................................................................... 445

Implementation Information..........................................................................................................................................445

Conguration Information.............................................................................................................................................446

Conguration Tasks for IS-IS..................................................................................................................................447

Conguring the Distance of a Route.....................................................................................................................454

Changing the IS-Type..............................................................................................................................................455

Redistributing IPv4 Routes..................................................................................................................................... 457

Redistributing IPv6 Routes.....................................................................................................................................458

Conguring Authentication Passwords.................................................................................................................459

Setting the Overload Bit......................................................................................................................................... 459

Debugging IS-IS.......................................................................................................................................................460

IS-IS Metric Styles..........................................................................................................................................................461

Congure Metric Values................................................................................................................................................ 461

Maximum Values in the Routing Table................................................................................................................... 461

Change the IS-IS Metric Style in One Level Only.................................................................................................461

16

Contents

Leaks from One Level to Another..........................................................................................................................463

Sample Congurations.................................................................................................................................................. 464

24 Link Aggregation Control Protocol (LACP).............................................................................................. 466

Introduction to Dynamic LAGs and LACP.................................................................................................................. 466

Important Points to Remember............................................................................................................................. 466

LACP Modes............................................................................................................................................................ 467

Conguring LACP Commands............................................................................................................................... 467

LACP Conguration Tasks............................................................................................................................................468

Creating a LAG.........................................................................................................................................................468

Conguring the LAG Interfaces as Dynamic........................................................................................................468

Setting the LACP Long Timeout........................................................................................................................... 469

Monitoring and Debugging LACP..........................................................................................................................469

Shared LAG State Tracking.......................................................................................................................................... 470

Conguring Shared LAG State Tracking............................................................................................................... 470

Important Points about Shared LAG State Tracking........................................................................................... 472

LACP Basic Conguration Example.............................................................................................................................472

Congure a LAG on ALPHA....................................................................................................................................472

25 Layer 2..................................................................................................................................................... 481

Manage the MAC Address Table.................................................................................................................................. 481

Clearing the MAC Address Table............................................................................................................................481

Setting the Aging Time for Dynamic Entries.........................................................................................................481

Conguring a Static MAC Address........................................................................................................................482

Displaying the MAC Address Table........................................................................................................................ 482

MAC Learning Limit....................................................................................................................................................... 482

Setting the MAC Learning Limit............................................................................................................................ 483

mac learning-limit Dynamic.....................................................................................................................................483

mac learning-limit mac-address-sticky................................................................................................................. 483

mac learning-limit station-move.............................................................................................................................484

mac learning-limit no-station-move.......................................................................................................................484

Learning Limit Violation Actions.............................................................................................................................484

Setting Station Move Violation Actions................................................................................................................ 485

Recovering from Learning Limit and Station Move Violations........................................................................... 485

Disabling MAC Address Learning on the System.................................................................................................486

NIC Teaming................................................................................................................................................................... 486

Congure Redundant Pairs...........................................................................................................................................487

Important Points about Conguring Redundant Pairs........................................................................................ 489

Far-End Failure Detection.............................................................................................................................................490

FEFD State Changes................................................................................................................................................491

Conguring FEFD.................................................................................................................................................... 492

Enabling FEFD on an Interface...............................................................................................................................492

Debugging FEFD......................................................................................................................................................493

26 Link Layer Discovery Protocol (LLDP)..................................................................................................... 495

802.1AB (LLDP) Overview............................................................................................................................................495

Contents

17

Protocol Data Units................................................................................................................................................. 495

Optional TLVs.................................................................................................................................................................496

Management TLVs.................................................................................................................................................. 496

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 498

TIA Organizationally Specic TLVs........................................................................................................................ 498

Congure LLDP............................................................................................................................................................. 502

Related Conguration Tasks...................................................................................................................................502

Important Points to Remember............................................................................................................................. 502

LLDP Compatibility..................................................................................................................................................503

CONFIGURATION versus INTERFACE Congurations............................................................................................ 503

Enabling LLDP................................................................................................................................................................503

Disabling and Undoing LLDP..................................................................................................................................504

Enabling LLDP on Management Ports........................................................................................................................504

Disabling and Undoing LLDP on Management Ports..........................................................................................504

Advertising TLVs............................................................................................................................................................504

Viewing the LLDP Conguration................................................................................................................................. 506

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 506

Conguring LLDPDU Intervals..................................................................................................................................... 507

Conguring Transmit and Receive Mode................................................................................................................... 508

Conguring the Time to Live Value............................................................................................................................. 508

Debugging LLDP............................................................................................................................................................509

Relevant Management Objects.................................................................................................................................... 510

27 Microsoft Network Load Balancing...........................................................................................................515

NLB Unicast Mode Scenario.........................................................................................................................................515

NLB Multicast Mode Scenario......................................................................................................................................515

Limitations of the NLB Feature.....................................................................................................................................516

Microsoft Clustering.......................................................................................................................................................516

Enable and Disable VLAN Flooding ............................................................................................................................. 516

Conguring a Switch for NLB ......................................................................................................................................516

Enabling a Switch for Multicast NLB..................................................................................................................... 517

28 Multicast Source Discovery Protocol (MSDP)..........................................................................................518

Protocol Overview..........................................................................................................................................................518

Anycast RP......................................................................................................................................................................519

Implementation Information..........................................................................................................................................520

Congure Multicast Source Discovery Protocol........................................................................................................520

Related Conguration Tasks...................................................................................................................................520

Enable MSDP................................................................................................................................................................. 524

Manage the Source-Active Cache.............................................................................................................................. 525

Viewing the Source-Active Cache.........................................................................................................................525

Limiting the Source-Active Cache.........................................................................................................................525

Clearing the Source-Active Cache........................................................................................................................ 526

Enabling the Rejected Source-Active Cache....................................................................................................... 526

Accept Source-Active Messages that Fail the RFP Check......................................................................................526

Specifying Source-Active Messages...........................................................................................................................529

18

Contents

Limiting the Source-Active Messages from a Peer...................................................................................................530

Preventing MSDP from Caching a Local Source.......................................................................................................530

Preventing MSDP from Caching a Remote Source................................................................................................... 531

Preventing MSDP from Advertising a Local Source.................................................................................................. 531

Logging Changes in Peership States...........................................................................................................................532

Terminating a Peership..................................................................................................................................................532

Clearing Peer Statistics.................................................................................................................................................533

Debugging MSDP.......................................................................................................................................................... 533

MSDP with Anycast RP................................................................................................................................................534

Conguring Anycast RP................................................................................................................................................535

Reducing Source-Active Message Flooding.........................................................................................................536

Specifying the RP Address Used in SA Messages.............................................................................................. 536

MSDP Sample Congurations......................................................................................................................................538

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 541

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

Spanning Tree Variations...............................................................................................................................................542

Implementation Information....................................................................................................................................542

Congure Multiple Spanning Tree Protocol................................................................................................................542

Related Conguration Tasks...................................................................................................................................543

Enable Multiple Spanning Tree Globally...................................................................................................................... 543

Adding and Removing Interfaces.................................................................................................................................543

Creating Multiple Spanning Tree Instances................................................................................................................ 544

Inuencing MSTP Root Selection................................................................................................................................545

Interoperate with Non-Dell Bridges.............................................................................................................................546

Changing the Region Name or Revision..................................................................................................................... 546

Modifying Global Parameters.......................................................................................................................................546

Modifying the Interface Parameters........................................................................................................................... 548

Conguring an EdgePort.............................................................................................................................................. 549

Flush MAC Addresses after a Topology Change....................................................................................................... 549

MSTP Sample Congurations......................................................................................................................................550

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

CongurationSFTOS Example Running-Conguration.......................................................................................550

Debugging and Verifying MSTP Congurations........................................................................................................ 554

30 Multicast Features...................................................................................................................................556

Enabling IP Multicast.....................................................................................................................................................556

Implementation Information......................................................................................................................................... 556

Multicast Policies........................................................................................................................................................... 557

IPv4 Multicast Policies............................................................................................................................................ 557

Understanding Multicast Traceroute (mtrace).......................................................................................................... 564

Important Points to Remember............................................................................................................................. 565

Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 565

Supported Error Codes.................................................................................................................................................566

mtrace Scenarios........................................................................................................................................................... 567

Contents

19

31 Object Tracking........................................................................................................................................ 573

Object Tracking Overview.............................................................................................................................................573

Track Layer 2 Interfaces.......................................................................................................................................... 574

Track Layer 3 Interfaces.......................................................................................................................................... 574

Track IPv4 and IPv6 Routes................................................................................................................................... 575

Set Tracking Delays..................................................................................................................................................576

VRRP Object Tracking.............................................................................................................................................576

Object Tracking Conguration......................................................................................................................................576

Tracking a Layer 2 Interface................................................................................................................................... 576

Tracking a Layer 3 Interface....................................................................................................................................577

Track an IPv4/IPv6 Route...................................................................................................................................... 579

Displaying Tracked Objects...........................................................................................................................................582

32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................584

Protocol Overview.........................................................................................................................................................584

Autonomous System (AS) Areas........................................................................................................................... 584

Area Types................................................................................................................................................................ 585

Networks and Neighbors........................................................................................................................................586

Router Types............................................................................................................................................................ 586

Designated and Backup Designated Routers....................................................................................................... 588

Link-State Advertisements (LSAs)........................................................................................................................588

Router Priority and Cost.........................................................................................................................................589

OSPF with Dell Networking OS...................................................................................................................................590

Graceful Restart....................................................................................................................................................... 591

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................592

Multi-Process OSPFv2 with VRF..........................................................................................................................592

RFC-2328 Compliant OSPF Flooding................................................................................................................... 592

OSPF ACK Packing................................................................................................................................................. 593

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 593

Conguration Information.............................................................................................................................................594

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 594

Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 608

Enabling IPv6 Unicast Routing...............................................................................................................................609

Applying cost for OSPFv3......................................................................................................................................609

Assigning IPv6 Addresses on an Interface............................................................................................................ 610

Assigning Area ID on an Interface.......................................................................................................................... 610

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................ 610

Assigning OSPFv3 Process ID and Router ID to a VRF........................................................................................611

Conguring Stub Areas............................................................................................................................................ 611

Conguring Passive-Interface.................................................................................................................................612

Redistributing Routes...............................................................................................................................................612

Conguring a Default Route....................................................................................................................................612

Enabling OSPFv3 Graceful Restart........................................................................................................................613

OSPFv3 Authentication Using IPsec..................................................................................................................... 615

Troubleshooting OSPFv3.........................................................................................................................................621

20

Contents

Dell PowerSwitch S6000 ON User guide

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